java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf -i ../../../trunk/examples/programs/real-life/divisibilityWithArray.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-e4dfe74 [2018-12-18 17:51:58,159 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-18 17:51:58,161 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-18 17:51:58,178 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-18 17:51:58,179 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-18 17:51:58,181 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-18 17:51:58,182 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-18 17:51:58,185 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-18 17:51:58,189 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-18 17:51:58,192 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-18 17:51:58,195 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-18 17:51:58,195 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-18 17:51:58,197 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-18 17:51:58,198 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-18 17:51:58,201 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-18 17:51:58,202 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-18 17:51:58,203 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-18 17:51:58,207 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-18 17:51:58,215 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-18 17:51:58,221 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-18 17:51:58,226 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-18 17:51:58,227 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-18 17:51:58,230 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-18 17:51:58,230 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-18 17:51:58,231 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-18 17:51:58,232 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-18 17:51:58,233 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-18 17:51:58,234 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-18 17:51:58,234 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-18 17:51:58,239 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-18 17:51:58,239 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-18 17:51:58,240 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-18 17:51:58,241 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-18 17:51:58,241 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-18 17:51:58,242 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-18 17:51:58,243 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-18 17:51:58,244 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf [2018-12-18 17:51:58,269 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-18 17:51:58,270 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-18 17:51:58,270 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-18 17:51:58,271 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-18 17:51:58,271 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-18 17:51:58,271 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-18 17:51:58,271 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-18 17:51:58,271 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-18 17:51:58,273 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-18 17:51:58,273 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-18 17:51:58,273 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-18 17:51:58,273 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-18 17:51:58,273 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-18 17:51:58,274 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-18 17:51:58,274 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-18 17:51:58,274 INFO L133 SettingsManager]: * Use SBE=true [2018-12-18 17:51:58,275 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-18 17:51:58,275 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-18 17:51:58,275 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-18 17:51:58,275 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-18 17:51:58,275 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-18 17:51:58,276 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-18 17:51:58,276 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-18 17:51:58,276 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-18 17:51:58,276 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-18 17:51:58,276 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-18 17:51:58,277 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-18 17:51:58,277 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-18 17:51:58,277 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-18 17:51:58,277 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-18 17:51:58,277 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-18 17:51:58,280 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-18 17:51:58,280 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-18 17:51:58,280 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-18 17:51:58,280 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-18 17:51:58,280 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-18 17:51:58,281 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-18 17:51:58,281 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-18 17:51:58,281 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-18 17:51:58,329 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-18 17:51:58,340 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-18 17:51:58,344 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-18 17:51:58,346 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-18 17:51:58,346 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-18 17:51:58,347 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/divisibilityWithArray.bpl [2018-12-18 17:51:58,347 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/divisibilityWithArray.bpl' [2018-12-18 17:51:58,388 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-18 17:51:58,390 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-18 17:51:58,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-18 17:51:58,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-18 17:51:58,391 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-18 17:51:58,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:51:58" (1/1) ... [2018-12-18 17:51:58,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:51:58" (1/1) ... [2018-12-18 17:51:58,429 WARN L165 Inliner]: Program contained no entry procedure! [2018-12-18 17:51:58,429 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-12-18 17:51:58,430 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-12-18 17:51:58,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-18 17:51:58,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-18 17:51:58,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-18 17:51:58,434 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-18 17:51:58,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:51:58" (1/1) ... [2018-12-18 17:51:58,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:51:58" (1/1) ... [2018-12-18 17:51:58,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:51:58" (1/1) ... [2018-12-18 17:51:58,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:51:58" (1/1) ... [2018-12-18 17:51:58,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:51:58" (1/1) ... [2018-12-18 17:51:58,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:51:58" (1/1) ... [2018-12-18 17:51:58,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:51:58" (1/1) ... [2018-12-18 17:51:58,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-18 17:51:58,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-18 17:51:58,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-18 17:51:58,463 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-18 17:51:58,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:51:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-18 17:51:58,541 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-12-18 17:51:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-18 17:51:58,542 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-18 17:51:58,832 INFO L272 CfgBuilder]: Using library mode [2018-12-18 17:51:58,832 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-18 17:51:58,833 INFO L202 PluginConnector]: Adding new model divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:51:58 BoogieIcfgContainer [2018-12-18 17:51:58,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-18 17:51:58,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-18 17:51:58,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-18 17:51:58,838 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-18 17:51:58,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:51:58" (1/2) ... [2018-12-18 17:51:58,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a28bb9b and model type divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 05:51:58, skipping insertion in model container [2018-12-18 17:51:58,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:51:58" (2/2) ... [2018-12-18 17:51:58,842 INFO L112 eAbstractionObserver]: Analyzing ICFG divisibilityWithArray.bpl [2018-12-18 17:51:58,852 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-18 17:51:58,862 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-18 17:51:58,881 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-18 17:51:58,918 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-18 17:51:58,919 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-18 17:51:58,919 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-18 17:51:58,919 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-18 17:51:58,919 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-18 17:51:58,919 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-18 17:51:58,919 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-18 17:51:58,920 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-18 17:51:58,937 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-12-18 17:51:58,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-18 17:51:58,949 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:51:58,951 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-18 17:51:58,954 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:51:58,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:51:58,961 INFO L82 PathProgramCache]: Analyzing trace with hash 29920, now seen corresponding path program 1 times [2018-12-18 17:51:58,964 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:51:59,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:51:59,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:51:59,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:51:59,018 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:51:59,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:51:59,625 WARN L181 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 19 [2018-12-18 17:51:59,777 INFO L273 TraceCheckUtils]: 0: Hoare triple {9#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {11#(and (or (< 0 main_n) (and (<= (* 4 main_n) main_i) (< main_i (+ (* 4 main_n) 1)) (= 23 (select main_a main_i)))) (<= main_i 0))} is VALID [2018-12-18 17:51:59,794 INFO L273 TraceCheckUtils]: 1: Hoare triple {11#(and (or (< 0 main_n) (and (<= (* 4 main_n) main_i) (< main_i (+ (* 4 main_n) 1)) (= 23 (select main_a main_i)))) (<= main_i 0))} assume a[i] != 23;i := i + 4; {12#(and (< 0 main_n) (<= main_i 4))} is VALID [2018-12-18 17:51:59,807 INFO L273 TraceCheckUtils]: 2: Hoare triple {12#(and (< 0 main_n) (<= main_i 4))} assume !(i <= n * 4); {10#false} is VALID [2018-12-18 17:51:59,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:51:59,812 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-18 17:51:59,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-18 17:51:59,812 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-18 17:51:59,818 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2018-12-18 17:51:59,820 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:51:59,824 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-12-18 17:51:59,872 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:51:59,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-18 17:51:59,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-18 17:51:59,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-18 17:51:59,887 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-12-18 17:52:00,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:00,169 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-12-18 17:52:00,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-18 17:52:00,170 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2018-12-18 17:52:00,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:00,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-18 17:52:00,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2018-12-18 17:52:00,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-18 17:52:00,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2018-12-18 17:52:00,181 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 14 transitions. [2018-12-18 17:52:00,236 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:00,246 INFO L225 Difference]: With dead ends: 14 [2018-12-18 17:52:00,247 INFO L226 Difference]: Without dead ends: 7 [2018-12-18 17:52:00,251 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-18 17:52:00,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-12-18 17:52:00,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2018-12-18 17:52:00,289 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:00,290 INFO L82 GeneralOperation]: Start isEquivalent. First operand 7 states. Second operand 6 states. [2018-12-18 17:52:00,291 INFO L74 IsIncluded]: Start isIncluded. First operand 7 states. Second operand 6 states. [2018-12-18 17:52:00,291 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 6 states. [2018-12-18 17:52:00,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:00,295 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2018-12-18 17:52:00,295 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-12-18 17:52:00,296 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:00,296 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:00,297 INFO L74 IsIncluded]: Start isIncluded. First operand 6 states. Second operand 7 states. [2018-12-18 17:52:00,297 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 7 states. [2018-12-18 17:52:00,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:00,300 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2018-12-18 17:52:00,301 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-12-18 17:52:00,301 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:00,301 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:00,302 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:00,303 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:00,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-18 17:52:00,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-12-18 17:52:00,307 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 3 [2018-12-18 17:52:00,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:00,308 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-12-18 17:52:00,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-18 17:52:00,308 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-12-18 17:52:00,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-18 17:52:00,309 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:00,309 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-12-18 17:52:00,311 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:00,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:00,312 INFO L82 PathProgramCache]: Analyzing trace with hash 28754210, now seen corresponding path program 1 times [2018-12-18 17:52:00,312 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:00,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:00,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:52:00,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:00,314 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:00,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:00,550 WARN L181 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-12-18 17:52:00,764 WARN L181 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 21 [2018-12-18 17:52:01,126 WARN L181 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 17 [2018-12-18 17:52:01,282 INFO L273 TraceCheckUtils]: 0: Hoare triple {54#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {56#(and (or (<= main_n 1) (<= main_i 0)) (or (<= 0 main_i) (< 1 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:01,283 INFO L273 TraceCheckUtils]: 1: Hoare triple {56#(and (or (<= main_n 1) (<= main_i 0)) (or (<= 0 main_i) (< 1 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {57#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 1 main_n)) (or (<= main_n 1) (<= main_i 4)))))} is VALID [2018-12-18 17:52:01,284 INFO L273 TraceCheckUtils]: 2: Hoare triple {57#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 1 main_n)) (or (<= main_n 1) (<= main_i 4)))))} assume i <= n * 4; {58#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 4) (< 1 main_n))))} is VALID [2018-12-18 17:52:01,285 INFO L273 TraceCheckUtils]: 3: Hoare triple {58#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 4) (< 1 main_n))))} assume a[i] != 23;i := i + 4; {59#(and (<= main_i 8) (< 1 main_n))} is VALID [2018-12-18 17:52:01,287 INFO L273 TraceCheckUtils]: 4: Hoare triple {59#(and (<= main_i 8) (< 1 main_n))} assume !(i <= n * 4); {55#false} is VALID [2018-12-18 17:52:01,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:01,289 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:01,290 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:52:01,291 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 6 with the following transitions: [2018-12-18 17:52:01,293 INFO L207 CegarAbsIntRunner]: [0], [4], [5], [6] [2018-12-18 17:52:01,335 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-18 17:52:01,335 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-18 17:52:01,506 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-18 17:52:01,508 INFO L272 AbstractInterpreter]: Visited 4 different actions 11 times. Merged at 3 different actions 7 times. Never widened. Performed 46 root evaluator evaluations with a maximum evaluation depth of 3. Performed 46 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-12-18 17:52:01,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:01,514 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-18 17:52:01,514 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:01,514 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:52:01,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:52:01,528 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-18 17:52:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:01,583 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:52:01,765 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:52:01,800 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:01,870 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:01,870 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:52:01,884 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:01,884 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_5]. (and (= (store v_main_a_5 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:52:01,885 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:52:02,209 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:52:02,220 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:02,267 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:02,267 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:52:02,279 INFO L273 TraceCheckUtils]: 0: Hoare triple {54#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {63#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:02,280 INFO L273 TraceCheckUtils]: 1: Hoare triple {63#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {67#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:02,288 INFO L273 TraceCheckUtils]: 2: Hoare triple {67#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {71#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:02,290 INFO L273 TraceCheckUtils]: 3: Hoare triple {71#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {59#(and (<= main_i 8) (< 1 main_n))} is VALID [2018-12-18 17:52:02,297 INFO L273 TraceCheckUtils]: 4: Hoare triple {59#(and (<= main_i 8) (< 1 main_n))} assume !(i <= n * 4); {55#false} is VALID [2018-12-18 17:52:02,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:02,298 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:52:02,554 INFO L273 TraceCheckUtils]: 4: Hoare triple {78#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {55#false} is VALID [2018-12-18 17:52:02,555 INFO L273 TraceCheckUtils]: 3: Hoare triple {82#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {78#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:52:02,557 INFO L273 TraceCheckUtils]: 2: Hoare triple {86#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {82#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:02,558 INFO L273 TraceCheckUtils]: 1: Hoare triple {90#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {86#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:02,559 INFO L273 TraceCheckUtils]: 0: Hoare triple {54#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {90#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:02,560 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:02,651 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:52:02,652 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2018-12-18 17:52:02,652 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:52:02,653 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 5 [2018-12-18 17:52:02,653 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:52:02,653 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2018-12-18 17:52:02,702 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:02,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-18 17:52:02,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-18 17:52:02,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2018-12-18 17:52:02,703 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 9 states. [2018-12-18 17:52:02,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:02,860 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2018-12-18 17:52:02,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-18 17:52:02,861 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 5 [2018-12-18 17:52:02,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:02,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-12-18 17:52:02,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10 transitions. [2018-12-18 17:52:02,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-12-18 17:52:02,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10 transitions. [2018-12-18 17:52:02,864 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 10 transitions. [2018-12-18 17:52:02,888 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:02,889 INFO L225 Difference]: With dead ends: 10 [2018-12-18 17:52:02,889 INFO L226 Difference]: Without dead ends: 9 [2018-12-18 17:52:02,891 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2018-12-18 17:52:02,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-12-18 17:52:02,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2018-12-18 17:52:02,909 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:02,909 INFO L82 GeneralOperation]: Start isEquivalent. First operand 9 states. Second operand 8 states. [2018-12-18 17:52:02,910 INFO L74 IsIncluded]: Start isIncluded. First operand 9 states. Second operand 8 states. [2018-12-18 17:52:02,910 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 8 states. [2018-12-18 17:52:02,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:02,911 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-12-18 17:52:02,911 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-12-18 17:52:02,911 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:02,912 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:02,912 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states. Second operand 9 states. [2018-12-18 17:52:02,912 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 9 states. [2018-12-18 17:52:02,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:02,913 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-12-18 17:52:02,913 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-12-18 17:52:02,914 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:02,914 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:02,914 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:02,914 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:02,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-12-18 17:52:02,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-12-18 17:52:02,915 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2018-12-18 17:52:02,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:02,916 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-12-18 17:52:02,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-18 17:52:02,916 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-12-18 17:52:02,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-18 17:52:02,916 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:02,917 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 1, 1] [2018-12-18 17:52:02,917 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:02,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:02,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1862993124, now seen corresponding path program 2 times [2018-12-18 17:52:02,917 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:02,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:02,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:52:02,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:02,919 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:02,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:03,342 INFO L273 TraceCheckUtils]: 0: Hoare triple {136#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {138#(and (or (<= main_n 2) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 2 main_n)))} is VALID [2018-12-18 17:52:03,344 INFO L273 TraceCheckUtils]: 1: Hoare triple {138#(and (or (<= main_n 2) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 2 main_n)))} assume a[i] != 23;i := i + 4; {139#(and (or (<= main_n 2) (<= main_i 4)) (or (< 2 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2018-12-18 17:52:03,345 INFO L273 TraceCheckUtils]: 2: Hoare triple {139#(and (or (<= main_n 2) (<= main_i 4)) (or (< 2 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {139#(and (or (<= main_n 2) (<= main_i 4)) (or (< 2 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2018-12-18 17:52:03,354 INFO L273 TraceCheckUtils]: 3: Hoare triple {139#(and (or (<= main_n 2) (<= main_i 4)) (or (< 2 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {140#(and (or (<= main_i 8) (<= main_n 2)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 2 main_n)))} is VALID [2018-12-18 17:52:03,355 INFO L273 TraceCheckUtils]: 4: Hoare triple {140#(and (or (<= main_i 8) (<= main_n 2)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 2 main_n)))} assume i <= n * 4; {141#(and (or (< 2 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 8))} is VALID [2018-12-18 17:52:03,356 INFO L273 TraceCheckUtils]: 5: Hoare triple {141#(and (or (< 2 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 8))} assume a[i] != 23;i := i + 4; {142#(and (< 2 main_n) (<= main_i 12))} is VALID [2018-12-18 17:52:03,357 INFO L273 TraceCheckUtils]: 6: Hoare triple {142#(and (< 2 main_n) (<= main_i 12))} assume !(i <= n * 4); {137#false} is VALID [2018-12-18 17:52:03,357 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:03,358 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:03,358 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:52:03,358 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:52:03,358 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:52:03,358 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:03,358 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:52:03,368 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-18 17:52:03,368 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-18 17:52:03,374 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-12-18 17:52:03,374 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:52:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:03,380 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:52:03,402 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:52:03,403 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:03,408 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:03,409 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:52:03,412 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:03,412 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_6]. (and (= (store v_main_a_6 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:52:03,412 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:52:03,559 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:52:03,565 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:03,569 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:03,570 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:52:03,585 INFO L273 TraceCheckUtils]: 0: Hoare triple {136#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {146#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:03,585 INFO L273 TraceCheckUtils]: 1: Hoare triple {146#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {150#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:03,586 INFO L273 TraceCheckUtils]: 2: Hoare triple {150#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {150#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:03,588 INFO L273 TraceCheckUtils]: 3: Hoare triple {150#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {157#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:03,589 INFO L273 TraceCheckUtils]: 4: Hoare triple {157#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {161#(and (= main_i 8) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:03,590 INFO L273 TraceCheckUtils]: 5: Hoare triple {161#(and (= main_i 8) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {142#(and (< 2 main_n) (<= main_i 12))} is VALID [2018-12-18 17:52:03,591 INFO L273 TraceCheckUtils]: 6: Hoare triple {142#(and (< 2 main_n) (<= main_i 12))} assume !(i <= n * 4); {137#false} is VALID [2018-12-18 17:52:03,592 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:03,592 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:52:03,842 INFO L273 TraceCheckUtils]: 6: Hoare triple {168#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {137#false} is VALID [2018-12-18 17:52:03,843 INFO L273 TraceCheckUtils]: 5: Hoare triple {172#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {168#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:52:03,852 INFO L273 TraceCheckUtils]: 4: Hoare triple {176#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {172#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:03,853 INFO L273 TraceCheckUtils]: 3: Hoare triple {180#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {176#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:03,855 INFO L273 TraceCheckUtils]: 2: Hoare triple {180#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {180#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:03,860 INFO L273 TraceCheckUtils]: 1: Hoare triple {187#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {180#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:03,861 INFO L273 TraceCheckUtils]: 0: Hoare triple {136#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {187#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:03,861 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:03,882 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:52:03,882 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 14 [2018-12-18 17:52:03,882 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:52:03,882 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2018-12-18 17:52:03,883 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:52:03,883 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2018-12-18 17:52:03,901 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:03,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-18 17:52:03,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-18 17:52:03,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2018-12-18 17:52:03,903 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 11 states. [2018-12-18 17:52:04,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:04,222 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-12-18 17:52:04,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-18 17:52:04,222 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2018-12-18 17:52:04,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:04,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-12-18 17:52:04,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2018-12-18 17:52:04,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-12-18 17:52:04,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2018-12-18 17:52:04,225 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 12 transitions. [2018-12-18 17:52:04,246 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:04,247 INFO L225 Difference]: With dead ends: 12 [2018-12-18 17:52:04,247 INFO L226 Difference]: Without dead ends: 11 [2018-12-18 17:52:04,248 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2018-12-18 17:52:04,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-12-18 17:52:04,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2018-12-18 17:52:04,259 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:04,259 INFO L82 GeneralOperation]: Start isEquivalent. First operand 11 states. Second operand 10 states. [2018-12-18 17:52:04,259 INFO L74 IsIncluded]: Start isIncluded. First operand 11 states. Second operand 10 states. [2018-12-18 17:52:04,259 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 10 states. [2018-12-18 17:52:04,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:04,261 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-12-18 17:52:04,261 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-12-18 17:52:04,261 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:04,262 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:04,262 INFO L74 IsIncluded]: Start isIncluded. First operand 10 states. Second operand 11 states. [2018-12-18 17:52:04,262 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 11 states. [2018-12-18 17:52:04,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:04,263 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-12-18 17:52:04,263 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-12-18 17:52:04,263 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:04,264 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:04,264 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:04,264 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:04,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-12-18 17:52:04,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-12-18 17:52:04,265 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2018-12-18 17:52:04,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:04,265 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-12-18 17:52:04,266 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-18 17:52:04,266 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-12-18 17:52:04,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-18 17:52:04,266 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:04,266 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 1, 1] [2018-12-18 17:52:04,267 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:04,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:04,267 INFO L82 PathProgramCache]: Analyzing trace with hash -664969178, now seen corresponding path program 3 times [2018-12-18 17:52:04,267 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:04,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:04,268 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:52:04,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:04,268 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:04,679 INFO L273 TraceCheckUtils]: 0: Hoare triple {243#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {245#(and (or (<= main_i 0) (<= main_n 3)) (or (< 3 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:04,680 INFO L273 TraceCheckUtils]: 1: Hoare triple {245#(and (or (<= main_i 0) (<= main_n 3)) (or (< 3 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {246#(and (or (<= main_i 4) (<= main_n 3)) (or (< 3 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:04,682 INFO L273 TraceCheckUtils]: 2: Hoare triple {246#(and (or (<= main_i 4) (<= main_n 3)) (or (< 3 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {246#(and (or (<= main_i 4) (<= main_n 3)) (or (< 3 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:04,683 INFO L273 TraceCheckUtils]: 3: Hoare triple {246#(and (or (<= main_i 4) (<= main_n 3)) (or (< 3 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {247#(and (or (<= main_i 8) (<= main_n 3)) (= 23 (select main_a (* 4 main_n))) (or (< 3 main_n) (<= 8 main_i)))} is VALID [2018-12-18 17:52:04,685 INFO L273 TraceCheckUtils]: 4: Hoare triple {247#(and (or (<= main_i 8) (<= main_n 3)) (= 23 (select main_a (* 4 main_n))) (or (< 3 main_n) (<= 8 main_i)))} assume i <= n * 4; {247#(and (or (<= main_i 8) (<= main_n 3)) (= 23 (select main_a (* 4 main_n))) (or (< 3 main_n) (<= 8 main_i)))} is VALID [2018-12-18 17:52:04,686 INFO L273 TraceCheckUtils]: 5: Hoare triple {247#(and (or (<= main_i 8) (<= main_n 3)) (= 23 (select main_a (* 4 main_n))) (or (< 3 main_n) (<= 8 main_i)))} assume a[i] != 23;i := i + 4; {248#(and (or (= (* 4 main_n) main_i) (and (or (< 3 main_n) (<= (* 4 main_n) main_i)) (or (<= main_n 3) (<= main_i 12)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2018-12-18 17:52:04,687 INFO L273 TraceCheckUtils]: 6: Hoare triple {248#(and (or (= (* 4 main_n) main_i) (and (or (< 3 main_n) (<= (* 4 main_n) main_i)) (or (<= main_n 3) (<= main_i 12)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {249#(and (or (= (* 4 main_n) main_i) (and (< 3 main_n) (<= main_i 12))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2018-12-18 17:52:04,688 INFO L273 TraceCheckUtils]: 7: Hoare triple {249#(and (or (= (* 4 main_n) main_i) (and (< 3 main_n) (<= main_i 12))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume a[i] != 23;i := i + 4; {250#(and (<= main_i 16) (<= 4 main_n))} is VALID [2018-12-18 17:52:04,689 INFO L273 TraceCheckUtils]: 8: Hoare triple {250#(and (<= main_i 16) (<= 4 main_n))} assume !(i <= n * 4); {244#false} is VALID [2018-12-18 17:52:04,690 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:04,690 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:04,690 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:52:04,690 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:52:04,691 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:52:04,691 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:04,691 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:52:04,701 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-18 17:52:04,701 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-18 17:52:04,707 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-18 17:52:04,707 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:52:04,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:04,720 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:52:04,738 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:52:04,739 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:04,746 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:04,746 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:52:04,749 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:04,749 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_7]. (and (= main_i 0) (= (store v_main_a_7 (* 4 main_n) 23) main_a)) [2018-12-18 17:52:04,749 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:52:04,917 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:52:04,920 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:04,928 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:04,928 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:52:04,942 INFO L273 TraceCheckUtils]: 0: Hoare triple {243#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {254#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:04,943 INFO L273 TraceCheckUtils]: 1: Hoare triple {254#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {258#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:04,944 INFO L273 TraceCheckUtils]: 2: Hoare triple {258#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {258#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:04,944 INFO L273 TraceCheckUtils]: 3: Hoare triple {258#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {265#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:04,948 INFO L273 TraceCheckUtils]: 4: Hoare triple {265#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {265#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:04,949 INFO L273 TraceCheckUtils]: 5: Hoare triple {265#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {272#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:04,950 INFO L273 TraceCheckUtils]: 6: Hoare triple {272#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {276#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:04,953 INFO L273 TraceCheckUtils]: 7: Hoare triple {276#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {250#(and (<= main_i 16) (<= 4 main_n))} is VALID [2018-12-18 17:52:04,954 INFO L273 TraceCheckUtils]: 8: Hoare triple {250#(and (<= main_i 16) (<= 4 main_n))} assume !(i <= n * 4); {244#false} is VALID [2018-12-18 17:52:04,955 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:04,955 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:52:05,366 INFO L273 TraceCheckUtils]: 8: Hoare triple {283#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {244#false} is VALID [2018-12-18 17:52:05,368 INFO L273 TraceCheckUtils]: 7: Hoare triple {287#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {283#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:52:05,369 INFO L273 TraceCheckUtils]: 6: Hoare triple {291#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {287#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:05,370 INFO L273 TraceCheckUtils]: 5: Hoare triple {295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {291#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:05,371 INFO L273 TraceCheckUtils]: 4: Hoare triple {295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:05,372 INFO L273 TraceCheckUtils]: 3: Hoare triple {302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:05,375 INFO L273 TraceCheckUtils]: 2: Hoare triple {302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:05,377 INFO L273 TraceCheckUtils]: 1: Hoare triple {309#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:05,379 INFO L273 TraceCheckUtils]: 0: Hoare triple {243#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {309#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:05,380 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:05,405 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:52:05,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 17 [2018-12-18 17:52:05,405 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:52:05,406 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 9 [2018-12-18 17:52:05,406 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:52:05,406 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2018-12-18 17:52:05,434 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:05,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-18 17:52:05,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-18 17:52:05,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2018-12-18 17:52:05,436 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 13 states. [2018-12-18 17:52:05,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:05,671 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-12-18 17:52:05,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-18 17:52:05,671 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 9 [2018-12-18 17:52:05,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:05,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-12-18 17:52:05,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 14 transitions. [2018-12-18 17:52:05,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-12-18 17:52:05,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 14 transitions. [2018-12-18 17:52:05,674 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 14 transitions. [2018-12-18 17:52:05,717 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:05,718 INFO L225 Difference]: With dead ends: 14 [2018-12-18 17:52:05,718 INFO L226 Difference]: Without dead ends: 13 [2018-12-18 17:52:05,721 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2018-12-18 17:52:05,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-12-18 17:52:05,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2018-12-18 17:52:05,762 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:05,762 INFO L82 GeneralOperation]: Start isEquivalent. First operand 13 states. Second operand 12 states. [2018-12-18 17:52:05,762 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand 12 states. [2018-12-18 17:52:05,762 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 12 states. [2018-12-18 17:52:05,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:05,764 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-12-18 17:52:05,764 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-12-18 17:52:05,764 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:05,765 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:05,765 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand 13 states. [2018-12-18 17:52:05,765 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 13 states. [2018-12-18 17:52:05,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:05,767 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-12-18 17:52:05,767 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-12-18 17:52:05,767 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:05,767 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:05,767 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:05,768 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:05,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-18 17:52:05,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-12-18 17:52:05,769 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2018-12-18 17:52:05,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:05,769 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-12-18 17:52:05,769 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-18 17:52:05,770 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-12-18 17:52:05,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-18 17:52:05,770 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:05,770 INFO L402 BasicCegarLoop]: trace histogram [5, 4, 1, 1] [2018-12-18 17:52:05,770 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:05,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:05,771 INFO L82 PathProgramCache]: Analyzing trace with hash 914748136, now seen corresponding path program 4 times [2018-12-18 17:52:05,771 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:05,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:05,772 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:52:05,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:05,772 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:06,398 INFO L273 TraceCheckUtils]: 0: Hoare triple {375#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {377#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 4 main_n)) (or (<= main_i 0) (<= main_n 4)))} is VALID [2018-12-18 17:52:06,401 INFO L273 TraceCheckUtils]: 1: Hoare triple {377#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 4 main_n)) (or (<= main_i 0) (<= main_n 4)))} assume a[i] != 23;i := i + 4; {378#(and (or (<= main_i 4) (<= main_n 4)) (or (< 4 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2018-12-18 17:52:06,401 INFO L273 TraceCheckUtils]: 2: Hoare triple {378#(and (or (<= main_i 4) (<= main_n 4)) (or (< 4 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {378#(and (or (<= main_i 4) (<= main_n 4)) (or (< 4 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2018-12-18 17:52:06,402 INFO L273 TraceCheckUtils]: 3: Hoare triple {378#(and (or (<= main_i 4) (<= main_n 4)) (or (< 4 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {379#(and (or (<= main_i 8) (<= main_n 4)) (or (< 4 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:06,403 INFO L273 TraceCheckUtils]: 4: Hoare triple {379#(and (or (<= main_i 8) (<= main_n 4)) (or (< 4 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {379#(and (or (<= main_i 8) (<= main_n 4)) (or (< 4 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:06,405 INFO L273 TraceCheckUtils]: 5: Hoare triple {379#(and (or (<= main_i 8) (<= main_n 4)) (or (< 4 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {380#(and (or (<= main_n 4) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 4 main_n)))} is VALID [2018-12-18 17:52:06,408 INFO L273 TraceCheckUtils]: 6: Hoare triple {380#(and (or (<= main_n 4) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 4 main_n)))} assume i <= n * 4; {380#(and (or (<= main_n 4) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 4 main_n)))} is VALID [2018-12-18 17:52:06,409 INFO L273 TraceCheckUtils]: 7: Hoare triple {380#(and (or (<= main_n 4) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 4 main_n)))} assume a[i] != 23;i := i + 4; {381#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 4 main_n)) (or (<= main_i 16) (<= main_n 4)))} is VALID [2018-12-18 17:52:06,410 INFO L273 TraceCheckUtils]: 8: Hoare triple {381#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 4 main_n)) (or (<= main_i 16) (<= main_n 4)))} assume i <= n * 4; {382#(and (or (< 4 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 16))} is VALID [2018-12-18 17:52:06,411 INFO L273 TraceCheckUtils]: 9: Hoare triple {382#(and (or (< 4 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 16))} assume a[i] != 23;i := i + 4; {383#(and (<= main_i 20) (<= 5 main_n))} is VALID [2018-12-18 17:52:06,412 INFO L273 TraceCheckUtils]: 10: Hoare triple {383#(and (<= main_i 20) (<= 5 main_n))} assume !(i <= n * 4); {376#false} is VALID [2018-12-18 17:52:06,414 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:06,414 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:06,414 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:52:06,415 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:52:06,415 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:52:06,415 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:06,415 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:52:06,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:52:06,431 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-18 17:52:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:06,448 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:52:06,566 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:52:06,569 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:06,576 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:06,576 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:52:06,578 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:06,578 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_8]. (and (= main_i 0) (= main_a (store v_main_a_8 (* 4 main_n) 23))) [2018-12-18 17:52:06,578 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:52:06,867 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:52:06,874 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:06,879 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:06,880 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:52:06,895 INFO L273 TraceCheckUtils]: 0: Hoare triple {375#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {387#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:06,896 INFO L273 TraceCheckUtils]: 1: Hoare triple {387#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {391#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:06,897 INFO L273 TraceCheckUtils]: 2: Hoare triple {391#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {391#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:06,898 INFO L273 TraceCheckUtils]: 3: Hoare triple {391#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {398#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:06,899 INFO L273 TraceCheckUtils]: 4: Hoare triple {398#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {398#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:06,900 INFO L273 TraceCheckUtils]: 5: Hoare triple {398#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {405#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:06,901 INFO L273 TraceCheckUtils]: 6: Hoare triple {405#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {405#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:06,902 INFO L273 TraceCheckUtils]: 7: Hoare triple {405#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {412#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:06,902 INFO L273 TraceCheckUtils]: 8: Hoare triple {412#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {416#(and (= main_i 16) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:06,904 INFO L273 TraceCheckUtils]: 9: Hoare triple {416#(and (= main_i 16) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {383#(and (<= main_i 20) (<= 5 main_n))} is VALID [2018-12-18 17:52:06,906 INFO L273 TraceCheckUtils]: 10: Hoare triple {383#(and (<= main_i 20) (<= 5 main_n))} assume !(i <= n * 4); {376#false} is VALID [2018-12-18 17:52:06,907 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:06,907 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:52:07,182 INFO L273 TraceCheckUtils]: 10: Hoare triple {423#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {376#false} is VALID [2018-12-18 17:52:07,183 INFO L273 TraceCheckUtils]: 9: Hoare triple {427#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {423#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:52:07,184 INFO L273 TraceCheckUtils]: 8: Hoare triple {431#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {427#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:07,185 INFO L273 TraceCheckUtils]: 7: Hoare triple {435#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {431#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:07,186 INFO L273 TraceCheckUtils]: 6: Hoare triple {435#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {435#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:07,188 INFO L273 TraceCheckUtils]: 5: Hoare triple {442#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {435#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:07,188 INFO L273 TraceCheckUtils]: 4: Hoare triple {442#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {442#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:07,190 INFO L273 TraceCheckUtils]: 3: Hoare triple {449#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {442#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:07,191 INFO L273 TraceCheckUtils]: 2: Hoare triple {449#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {449#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:07,192 INFO L273 TraceCheckUtils]: 1: Hoare triple {456#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {449#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:07,193 INFO L273 TraceCheckUtils]: 0: Hoare triple {375#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {456#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:07,194 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:07,213 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:52:07,214 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 20 [2018-12-18 17:52:07,214 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:52:07,214 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 11 [2018-12-18 17:52:07,214 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:52:07,215 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states. [2018-12-18 17:52:07,242 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:07,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-18 17:52:07,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-18 17:52:07,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2018-12-18 17:52:07,243 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 15 states. [2018-12-18 17:52:07,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:07,739 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-12-18 17:52:07,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-18 17:52:07,739 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 11 [2018-12-18 17:52:07,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:07,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-18 17:52:07,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 16 transitions. [2018-12-18 17:52:07,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-18 17:52:07,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 16 transitions. [2018-12-18 17:52:07,742 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 16 transitions. [2018-12-18 17:52:07,764 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:07,765 INFO L225 Difference]: With dead ends: 16 [2018-12-18 17:52:07,766 INFO L226 Difference]: Without dead ends: 15 [2018-12-18 17:52:07,766 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2018-12-18 17:52:07,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-18 17:52:07,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2018-12-18 17:52:07,793 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:07,793 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand 14 states. [2018-12-18 17:52:07,794 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 14 states. [2018-12-18 17:52:07,794 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 14 states. [2018-12-18 17:52:07,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:07,795 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-12-18 17:52:07,796 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-12-18 17:52:07,796 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:07,796 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:07,796 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand 15 states. [2018-12-18 17:52:07,797 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 15 states. [2018-12-18 17:52:07,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:07,798 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-12-18 17:52:07,798 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-12-18 17:52:07,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:07,799 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:07,799 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:07,799 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:07,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-12-18 17:52:07,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-12-18 17:52:07,800 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-12-18 17:52:07,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:07,801 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-12-18 17:52:07,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-18 17:52:07,801 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-12-18 17:52:07,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-18 17:52:07,802 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:07,802 INFO L402 BasicCegarLoop]: trace histogram [6, 5, 1, 1] [2018-12-18 17:52:07,802 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:07,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:07,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1395335894, now seen corresponding path program 5 times [2018-12-18 17:52:07,803 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:07,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:07,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:52:07,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:07,804 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:07,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:08,422 INFO L273 TraceCheckUtils]: 0: Hoare triple {532#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {534#(and (or (<= main_n 5) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 5 main_n)))} is VALID [2018-12-18 17:52:08,424 INFO L273 TraceCheckUtils]: 1: Hoare triple {534#(and (or (<= main_n 5) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 5 main_n)))} assume a[i] != 23;i := i + 4; {535#(and (or (<= main_n 5) (<= main_i 4)) (or (< 5 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2018-12-18 17:52:08,425 INFO L273 TraceCheckUtils]: 2: Hoare triple {535#(and (or (<= main_n 5) (<= main_i 4)) (or (< 5 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {535#(and (or (<= main_n 5) (<= main_i 4)) (or (< 5 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2018-12-18 17:52:08,426 INFO L273 TraceCheckUtils]: 3: Hoare triple {535#(and (or (<= main_n 5) (<= main_i 4)) (or (< 5 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {536#(and (or (<= main_n 5) (<= main_i 8)) (or (< 5 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:08,428 INFO L273 TraceCheckUtils]: 4: Hoare triple {536#(and (or (<= main_n 5) (<= main_i 8)) (or (< 5 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {536#(and (or (<= main_n 5) (<= main_i 8)) (or (< 5 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:08,429 INFO L273 TraceCheckUtils]: 5: Hoare triple {536#(and (or (<= main_n 5) (<= main_i 8)) (or (< 5 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {537#(and (or (<= main_n 5) (<= main_i 12)) (or (< 5 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:08,430 INFO L273 TraceCheckUtils]: 6: Hoare triple {537#(and (or (<= main_n 5) (<= main_i 12)) (or (< 5 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {537#(and (or (<= main_n 5) (<= main_i 12)) (or (< 5 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:08,432 INFO L273 TraceCheckUtils]: 7: Hoare triple {537#(and (or (<= main_n 5) (<= main_i 12)) (or (< 5 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {538#(and (or (< 5 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 5) (<= main_i 16)))} is VALID [2018-12-18 17:52:08,437 INFO L273 TraceCheckUtils]: 8: Hoare triple {538#(and (or (< 5 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 5) (<= main_i 16)))} assume i <= n * 4; {538#(and (or (< 5 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 5) (<= main_i 16)))} is VALID [2018-12-18 17:52:08,439 INFO L273 TraceCheckUtils]: 9: Hoare triple {538#(and (or (< 5 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 5) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {539#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 5 main_n)) (or (<= main_n 5) (<= main_i 20)))} is VALID [2018-12-18 17:52:08,440 INFO L273 TraceCheckUtils]: 10: Hoare triple {539#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 5 main_n)) (or (<= main_n 5) (<= main_i 20)))} assume i <= n * 4; {540#(and (or (< 5 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 20))} is VALID [2018-12-18 17:52:08,440 INFO L273 TraceCheckUtils]: 11: Hoare triple {540#(and (or (< 5 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 20))} assume a[i] != 23;i := i + 4; {541#(and (< 5 main_n) (<= main_i 24))} is VALID [2018-12-18 17:52:08,441 INFO L273 TraceCheckUtils]: 12: Hoare triple {541#(and (< 5 main_n) (<= main_i 24))} assume !(i <= n * 4); {533#false} is VALID [2018-12-18 17:52:08,442 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:08,442 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:08,442 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:52:08,443 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:52:08,443 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:52:08,443 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:08,443 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:52:08,451 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-18 17:52:08,451 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-18 17:52:08,465 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2018-12-18 17:52:08,465 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:52:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:08,471 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:52:08,516 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:52:08,544 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:08,565 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:08,565 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:52:08,567 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:08,567 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_9]. (and (= (store v_main_a_9 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:52:08,567 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:52:08,800 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:52:08,804 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:08,808 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:08,809 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:52:08,812 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:08,812 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 20))) (<= main_i 24) (<= 20 .cse0) (= 23 (select main_a .cse0)))) [2018-12-18 17:52:08,812 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 20 .cse0)) (<= main_i 24) (<= 20 .cse0))) [2018-12-18 17:52:08,858 INFO L273 TraceCheckUtils]: 0: Hoare triple {532#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {545#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:08,858 INFO L273 TraceCheckUtils]: 1: Hoare triple {545#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {549#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:08,859 INFO L273 TraceCheckUtils]: 2: Hoare triple {549#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {549#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:08,859 INFO L273 TraceCheckUtils]: 3: Hoare triple {549#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {556#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:08,860 INFO L273 TraceCheckUtils]: 4: Hoare triple {556#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {556#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:08,861 INFO L273 TraceCheckUtils]: 5: Hoare triple {556#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {563#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:08,861 INFO L273 TraceCheckUtils]: 6: Hoare triple {563#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {563#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:08,862 INFO L273 TraceCheckUtils]: 7: Hoare triple {563#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {570#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:08,863 INFO L273 TraceCheckUtils]: 8: Hoare triple {570#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {570#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:08,864 INFO L273 TraceCheckUtils]: 9: Hoare triple {570#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {577#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:08,880 INFO L273 TraceCheckUtils]: 10: Hoare triple {577#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {581#(and (= main_i 20) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:08,881 INFO L273 TraceCheckUtils]: 11: Hoare triple {581#(and (= main_i 20) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {541#(and (< 5 main_n) (<= main_i 24))} is VALID [2018-12-18 17:52:08,882 INFO L273 TraceCheckUtils]: 12: Hoare triple {541#(and (< 5 main_n) (<= main_i 24))} assume !(i <= n * 4); {533#false} is VALID [2018-12-18 17:52:08,883 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:08,883 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:52:09,170 INFO L273 TraceCheckUtils]: 12: Hoare triple {588#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {533#false} is VALID [2018-12-18 17:52:09,171 INFO L273 TraceCheckUtils]: 11: Hoare triple {592#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {588#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:52:09,172 INFO L273 TraceCheckUtils]: 10: Hoare triple {596#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {592#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:09,177 INFO L273 TraceCheckUtils]: 9: Hoare triple {600#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {596#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:09,177 INFO L273 TraceCheckUtils]: 8: Hoare triple {600#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {600#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:09,198 INFO L273 TraceCheckUtils]: 7: Hoare triple {607#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {600#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:09,203 INFO L273 TraceCheckUtils]: 6: Hoare triple {607#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {607#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:09,204 INFO L273 TraceCheckUtils]: 5: Hoare triple {614#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {607#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:09,204 INFO L273 TraceCheckUtils]: 4: Hoare triple {614#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {614#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:09,205 INFO L273 TraceCheckUtils]: 3: Hoare triple {621#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {614#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:09,205 INFO L273 TraceCheckUtils]: 2: Hoare triple {621#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {621#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:09,206 INFO L273 TraceCheckUtils]: 1: Hoare triple {628#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {621#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:09,207 INFO L273 TraceCheckUtils]: 0: Hoare triple {532#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {628#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:09,208 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:09,228 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:52:09,228 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 23 [2018-12-18 17:52:09,228 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:52:09,228 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 13 [2018-12-18 17:52:09,229 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:52:09,229 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states. [2018-12-18 17:52:09,260 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:09,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-18 17:52:09,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-18 17:52:09,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2018-12-18 17:52:09,261 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 17 states. [2018-12-18 17:52:09,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:09,686 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-12-18 17:52:09,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-18 17:52:09,687 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 13 [2018-12-18 17:52:09,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:09,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-12-18 17:52:09,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 18 transitions. [2018-12-18 17:52:09,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-12-18 17:52:09,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 18 transitions. [2018-12-18 17:52:09,689 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 18 transitions. [2018-12-18 17:52:09,712 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:09,713 INFO L225 Difference]: With dead ends: 18 [2018-12-18 17:52:09,713 INFO L226 Difference]: Without dead ends: 17 [2018-12-18 17:52:09,715 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2018-12-18 17:52:09,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-12-18 17:52:09,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2018-12-18 17:52:09,739 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:09,739 INFO L82 GeneralOperation]: Start isEquivalent. First operand 17 states. Second operand 16 states. [2018-12-18 17:52:09,739 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand 16 states. [2018-12-18 17:52:09,739 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 16 states. [2018-12-18 17:52:09,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:09,741 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-12-18 17:52:09,741 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-12-18 17:52:09,741 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:09,741 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:09,741 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 17 states. [2018-12-18 17:52:09,741 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 17 states. [2018-12-18 17:52:09,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:09,743 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-12-18 17:52:09,743 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-12-18 17:52:09,743 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:09,743 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:09,743 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:09,743 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:09,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-12-18 17:52:09,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-12-18 17:52:09,745 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2018-12-18 17:52:09,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:09,745 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-12-18 17:52:09,745 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-18 17:52:09,745 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-12-18 17:52:09,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-18 17:52:09,746 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:09,746 INFO L402 BasicCegarLoop]: trace histogram [7, 6, 1, 1] [2018-12-18 17:52:09,746 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:09,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:09,746 INFO L82 PathProgramCache]: Analyzing trace with hash -887996692, now seen corresponding path program 6 times [2018-12-18 17:52:09,747 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:09,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:09,748 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:52:09,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:09,748 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:10,160 INFO L273 TraceCheckUtils]: 0: Hoare triple {714#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {716#(and (or (<= main_n 6) (<= main_i 0)) (or (< 6 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:10,162 INFO L273 TraceCheckUtils]: 1: Hoare triple {716#(and (or (<= main_n 6) (<= main_i 0)) (or (< 6 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {717#(and (or (< 6 main_n) (<= 4 main_i)) (or (<= main_n 6) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:10,163 INFO L273 TraceCheckUtils]: 2: Hoare triple {717#(and (or (< 6 main_n) (<= 4 main_i)) (or (<= main_n 6) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {717#(and (or (< 6 main_n) (<= 4 main_i)) (or (<= main_n 6) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:10,164 INFO L273 TraceCheckUtils]: 3: Hoare triple {717#(and (or (< 6 main_n) (<= 4 main_i)) (or (<= main_n 6) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {718#(and (or (<= main_n 6) (<= main_i 8)) (or (< 6 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:10,165 INFO L273 TraceCheckUtils]: 4: Hoare triple {718#(and (or (<= main_n 6) (<= main_i 8)) (or (< 6 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {718#(and (or (<= main_n 6) (<= main_i 8)) (or (< 6 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:10,166 INFO L273 TraceCheckUtils]: 5: Hoare triple {718#(and (or (<= main_n 6) (<= main_i 8)) (or (< 6 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {719#(and (or (<= main_n 6) (<= main_i 12)) (or (< 6 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:10,167 INFO L273 TraceCheckUtils]: 6: Hoare triple {719#(and (or (<= main_n 6) (<= main_i 12)) (or (< 6 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {719#(and (or (<= main_n 6) (<= main_i 12)) (or (< 6 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:10,168 INFO L273 TraceCheckUtils]: 7: Hoare triple {719#(and (or (<= main_n 6) (<= main_i 12)) (or (< 6 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {720#(and (or (< 6 main_n) (<= 16 main_i)) (or (<= main_n 6) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:10,169 INFO L273 TraceCheckUtils]: 8: Hoare triple {720#(and (or (< 6 main_n) (<= 16 main_i)) (or (<= main_n 6) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {720#(and (or (< 6 main_n) (<= 16 main_i)) (or (<= main_n 6) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:10,170 INFO L273 TraceCheckUtils]: 9: Hoare triple {720#(and (or (< 6 main_n) (<= 16 main_i)) (or (<= main_n 6) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {721#(and (or (< 6 main_n) (<= 20 main_i)) (or (<= main_n 6) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:10,171 INFO L273 TraceCheckUtils]: 10: Hoare triple {721#(and (or (< 6 main_n) (<= 20 main_i)) (or (<= main_n 6) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {721#(and (or (< 6 main_n) (<= 20 main_i)) (or (<= main_n 6) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:10,173 INFO L273 TraceCheckUtils]: 11: Hoare triple {721#(and (or (< 6 main_n) (<= 20 main_i)) (or (<= main_n 6) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {722#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 6) (<= main_i 24)) (or (< 6 main_n) (<= (* 4 main_n) main_i)))))} is VALID [2018-12-18 17:52:10,175 INFO L273 TraceCheckUtils]: 12: Hoare triple {722#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 6) (<= main_i 24)) (or (< 6 main_n) (<= (* 4 main_n) main_i)))))} assume i <= n * 4; {723#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 6 main_n) (<= main_i 24))))} is VALID [2018-12-18 17:52:10,176 INFO L273 TraceCheckUtils]: 13: Hoare triple {723#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 6 main_n) (<= main_i 24))))} assume a[i] != 23;i := i + 4; {724#(and (<= 7 main_n) (<= main_i 28))} is VALID [2018-12-18 17:52:10,177 INFO L273 TraceCheckUtils]: 14: Hoare triple {724#(and (<= 7 main_n) (<= main_i 28))} assume !(i <= n * 4); {715#false} is VALID [2018-12-18 17:52:10,179 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:10,179 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:10,179 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:52:10,180 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:52:10,180 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:52:10,180 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:10,180 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:52:10,195 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-18 17:52:10,195 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-18 17:52:10,221 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-18 17:52:10,221 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:52:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:10,226 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:52:10,237 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:52:10,239 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:10,246 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:10,246 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:52:10,248 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:10,249 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_10]. (and (= main_i 0) (= main_a (store v_main_a_10 (* 4 main_n) 23))) [2018-12-18 17:52:10,249 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:52:10,462 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:52:10,464 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:10,470 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:10,470 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:52:10,473 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:10,473 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 24))) (<= 24 .cse0) (= 23 (select main_a .cse0)) (<= main_i 28))) [2018-12-18 17:52:10,474 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 24 .cse0) (not (= 24 .cse0)) (<= main_i 28))) [2018-12-18 17:52:10,486 INFO L273 TraceCheckUtils]: 0: Hoare triple {714#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {728#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:10,487 INFO L273 TraceCheckUtils]: 1: Hoare triple {728#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {732#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:10,488 INFO L273 TraceCheckUtils]: 2: Hoare triple {732#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {732#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:10,492 INFO L273 TraceCheckUtils]: 3: Hoare triple {732#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {739#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:10,493 INFO L273 TraceCheckUtils]: 4: Hoare triple {739#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {739#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:10,493 INFO L273 TraceCheckUtils]: 5: Hoare triple {739#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {746#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:10,494 INFO L273 TraceCheckUtils]: 6: Hoare triple {746#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {746#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:10,494 INFO L273 TraceCheckUtils]: 7: Hoare triple {746#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {753#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:10,495 INFO L273 TraceCheckUtils]: 8: Hoare triple {753#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {753#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:10,495 INFO L273 TraceCheckUtils]: 9: Hoare triple {753#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {760#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:10,496 INFO L273 TraceCheckUtils]: 10: Hoare triple {760#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {760#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:10,496 INFO L273 TraceCheckUtils]: 11: Hoare triple {760#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {767#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:10,497 INFO L273 TraceCheckUtils]: 12: Hoare triple {767#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {771#(and (= main_i 24) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:10,498 INFO L273 TraceCheckUtils]: 13: Hoare triple {771#(and (= main_i 24) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {724#(and (<= 7 main_n) (<= main_i 28))} is VALID [2018-12-18 17:52:10,499 INFO L273 TraceCheckUtils]: 14: Hoare triple {724#(and (<= 7 main_n) (<= main_i 28))} assume !(i <= n * 4); {715#false} is VALID [2018-12-18 17:52:10,500 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:10,501 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:52:11,191 INFO L273 TraceCheckUtils]: 14: Hoare triple {778#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {715#false} is VALID [2018-12-18 17:52:11,192 INFO L273 TraceCheckUtils]: 13: Hoare triple {782#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {778#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:52:11,194 INFO L273 TraceCheckUtils]: 12: Hoare triple {786#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {782#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:11,195 INFO L273 TraceCheckUtils]: 11: Hoare triple {790#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {786#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:11,196 INFO L273 TraceCheckUtils]: 10: Hoare triple {790#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {790#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:11,197 INFO L273 TraceCheckUtils]: 9: Hoare triple {797#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {790#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:11,198 INFO L273 TraceCheckUtils]: 8: Hoare triple {797#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {797#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:11,199 INFO L273 TraceCheckUtils]: 7: Hoare triple {804#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {797#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:11,200 INFO L273 TraceCheckUtils]: 6: Hoare triple {804#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {804#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:11,201 INFO L273 TraceCheckUtils]: 5: Hoare triple {811#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {804#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:11,202 INFO L273 TraceCheckUtils]: 4: Hoare triple {811#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {811#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:11,203 INFO L273 TraceCheckUtils]: 3: Hoare triple {818#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {811#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:11,203 INFO L273 TraceCheckUtils]: 2: Hoare triple {818#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {818#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:11,205 INFO L273 TraceCheckUtils]: 1: Hoare triple {825#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {818#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:11,206 INFO L273 TraceCheckUtils]: 0: Hoare triple {714#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {825#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:52:11,207 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:11,227 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:52:11,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 26 [2018-12-18 17:52:11,227 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:52:11,228 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 15 [2018-12-18 17:52:11,228 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:52:11,228 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 19 states. [2018-12-18 17:52:11,290 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:11,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-12-18 17:52:11,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-12-18 17:52:11,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2018-12-18 17:52:11,292 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 19 states. [2018-12-18 17:52:11,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:11,859 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2018-12-18 17:52:11,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-18 17:52:11,859 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 15 [2018-12-18 17:52:11,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:11,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-12-18 17:52:11,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 20 transitions. [2018-12-18 17:52:11,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-12-18 17:52:11,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 20 transitions. [2018-12-18 17:52:11,862 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states and 20 transitions. [2018-12-18 17:52:11,899 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:11,900 INFO L225 Difference]: With dead ends: 20 [2018-12-18 17:52:11,900 INFO L226 Difference]: Without dead ends: 19 [2018-12-18 17:52:11,901 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2018-12-18 17:52:11,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-12-18 17:52:11,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2018-12-18 17:52:11,936 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:11,936 INFO L82 GeneralOperation]: Start isEquivalent. First operand 19 states. Second operand 18 states. [2018-12-18 17:52:11,936 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 18 states. [2018-12-18 17:52:11,937 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 18 states. [2018-12-18 17:52:11,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:11,938 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-12-18 17:52:11,939 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-12-18 17:52:11,939 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:11,939 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:11,939 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand 19 states. [2018-12-18 17:52:11,939 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 19 states. [2018-12-18 17:52:11,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:11,940 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-12-18 17:52:11,941 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-12-18 17:52:11,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:11,941 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:11,941 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:11,941 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:11,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-18 17:52:11,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-12-18 17:52:11,942 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2018-12-18 17:52:11,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:11,943 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-12-18 17:52:11,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-12-18 17:52:11,943 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-12-18 17:52:11,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-18 17:52:11,943 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:11,944 INFO L402 BasicCegarLoop]: trace histogram [8, 7, 1, 1] [2018-12-18 17:52:11,944 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:11,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:11,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1333671982, now seen corresponding path program 7 times [2018-12-18 17:52:11,944 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:11,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:11,945 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:52:11,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:11,945 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:12,430 INFO L273 TraceCheckUtils]: 0: Hoare triple {921#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {923#(and (or (<= main_i 0) (<= main_n 7)) (or (< 7 main_n) (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:12,431 INFO L273 TraceCheckUtils]: 1: Hoare triple {923#(and (or (<= main_i 0) (<= main_n 7)) (or (< 7 main_n) (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {924#(and (or (< 7 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 7)))} is VALID [2018-12-18 17:52:12,432 INFO L273 TraceCheckUtils]: 2: Hoare triple {924#(and (or (< 7 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 7)))} assume i <= n * 4; {924#(and (or (< 7 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 7)))} is VALID [2018-12-18 17:52:12,434 INFO L273 TraceCheckUtils]: 3: Hoare triple {924#(and (or (< 7 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 7)))} assume a[i] != 23;i := i + 4; {925#(and (or (< 7 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 7)))} is VALID [2018-12-18 17:52:12,435 INFO L273 TraceCheckUtils]: 4: Hoare triple {925#(and (or (< 7 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 7)))} assume i <= n * 4; {925#(and (or (< 7 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 7)))} is VALID [2018-12-18 17:52:12,436 INFO L273 TraceCheckUtils]: 5: Hoare triple {925#(and (or (< 7 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 7)))} assume a[i] != 23;i := i + 4; {926#(and (or (< 7 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 7) (<= main_i 12)))} is VALID [2018-12-18 17:52:12,437 INFO L273 TraceCheckUtils]: 6: Hoare triple {926#(and (or (< 7 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 7) (<= main_i 12)))} assume i <= n * 4; {926#(and (or (< 7 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 7) (<= main_i 12)))} is VALID [2018-12-18 17:52:12,439 INFO L273 TraceCheckUtils]: 7: Hoare triple {926#(and (or (< 7 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 7) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {927#(and (or (<= main_i 16) (<= main_n 7)) (or (< 7 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:12,440 INFO L273 TraceCheckUtils]: 8: Hoare triple {927#(and (or (<= main_i 16) (<= main_n 7)) (or (< 7 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {927#(and (or (<= main_i 16) (<= main_n 7)) (or (< 7 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:12,443 INFO L273 TraceCheckUtils]: 9: Hoare triple {927#(and (or (<= main_i 16) (<= main_n 7)) (or (< 7 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {928#(and (or (<= main_i 20) (<= main_n 7)) (or (< 7 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:12,444 INFO L273 TraceCheckUtils]: 10: Hoare triple {928#(and (or (<= main_i 20) (<= main_n 7)) (or (< 7 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {928#(and (or (<= main_i 20) (<= main_n 7)) (or (< 7 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:12,446 INFO L273 TraceCheckUtils]: 11: Hoare triple {928#(and (or (<= main_i 20) (<= main_n 7)) (or (< 7 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {929#(and (or (< 7 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 24) (<= main_n 7)))} is VALID [2018-12-18 17:52:12,446 INFO L273 TraceCheckUtils]: 12: Hoare triple {929#(and (or (< 7 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 24) (<= main_n 7)))} assume i <= n * 4; {929#(and (or (< 7 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 24) (<= main_n 7)))} is VALID [2018-12-18 17:52:12,447 INFO L273 TraceCheckUtils]: 13: Hoare triple {929#(and (or (< 7 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 24) (<= main_n 7)))} assume a[i] != 23;i := i + 4; {930#(and (or (< 7 main_n) (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i))) (or (<= main_n 7) (<= main_i 28)))} is VALID [2018-12-18 17:52:12,448 INFO L273 TraceCheckUtils]: 14: Hoare triple {930#(and (or (< 7 main_n) (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i))) (or (<= main_n 7) (<= main_i 28)))} assume i <= n * 4; {931#(and (or (< 7 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 28))} is VALID [2018-12-18 17:52:12,449 INFO L273 TraceCheckUtils]: 15: Hoare triple {931#(and (or (< 7 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 28))} assume a[i] != 23;i := i + 4; {932#(and (<= main_i 32) (<= 8 main_n))} is VALID [2018-12-18 17:52:12,450 INFO L273 TraceCheckUtils]: 16: Hoare triple {932#(and (<= main_i 32) (<= 8 main_n))} assume !(i <= n * 4); {922#false} is VALID [2018-12-18 17:52:12,453 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:12,453 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:12,454 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:52:12,454 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:52:12,454 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:52:12,454 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:12,454 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:52:12,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:52:12,467 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-18 17:52:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:12,500 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:52:12,543 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:52:12,547 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:12,555 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:12,555 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:52:12,558 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:12,558 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_11]. (and (= (store v_main_a_11 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:52:12,558 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:52:12,894 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:52:12,896 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:12,901 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:12,902 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:52:12,904 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:12,904 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 32) (not (= (select main_a 28) 23)) (= 23 (select main_a .cse0)) (<= 28 .cse0))) [2018-12-18 17:52:12,905 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 32) (not (= 28 .cse0)) (<= 28 .cse0))) [2018-12-18 17:52:12,921 INFO L273 TraceCheckUtils]: 0: Hoare triple {921#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {936#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:12,922 INFO L273 TraceCheckUtils]: 1: Hoare triple {936#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {940#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:12,923 INFO L273 TraceCheckUtils]: 2: Hoare triple {940#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {940#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:12,924 INFO L273 TraceCheckUtils]: 3: Hoare triple {940#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {947#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:12,925 INFO L273 TraceCheckUtils]: 4: Hoare triple {947#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {947#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:12,933 INFO L273 TraceCheckUtils]: 5: Hoare triple {947#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {954#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:12,934 INFO L273 TraceCheckUtils]: 6: Hoare triple {954#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {954#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:12,935 INFO L273 TraceCheckUtils]: 7: Hoare triple {954#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {961#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:12,935 INFO L273 TraceCheckUtils]: 8: Hoare triple {961#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {961#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:12,936 INFO L273 TraceCheckUtils]: 9: Hoare triple {961#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {968#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:12,936 INFO L273 TraceCheckUtils]: 10: Hoare triple {968#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {968#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:12,937 INFO L273 TraceCheckUtils]: 11: Hoare triple {968#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {975#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:12,937 INFO L273 TraceCheckUtils]: 12: Hoare triple {975#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {975#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:12,938 INFO L273 TraceCheckUtils]: 13: Hoare triple {975#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {982#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:12,938 INFO L273 TraceCheckUtils]: 14: Hoare triple {982#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {986#(and (= main_i 28) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:12,939 INFO L273 TraceCheckUtils]: 15: Hoare triple {986#(and (= main_i 28) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {932#(and (<= main_i 32) (<= 8 main_n))} is VALID [2018-12-18 17:52:12,940 INFO L273 TraceCheckUtils]: 16: Hoare triple {932#(and (<= main_i 32) (<= 8 main_n))} assume !(i <= n * 4); {922#false} is VALID [2018-12-18 17:52:12,942 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:12,943 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:52:13,459 INFO L273 TraceCheckUtils]: 16: Hoare triple {993#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {922#false} is VALID [2018-12-18 17:52:13,460 INFO L273 TraceCheckUtils]: 15: Hoare triple {997#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {993#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:52:13,461 INFO L273 TraceCheckUtils]: 14: Hoare triple {1001#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {997#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:13,463 INFO L273 TraceCheckUtils]: 13: Hoare triple {1005#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {1001#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:13,463 INFO L273 TraceCheckUtils]: 12: Hoare triple {1005#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {1005#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:13,465 INFO L273 TraceCheckUtils]: 11: Hoare triple {1012#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {1005#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:13,466 INFO L273 TraceCheckUtils]: 10: Hoare triple {1012#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {1012#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:13,467 INFO L273 TraceCheckUtils]: 9: Hoare triple {1019#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {1012#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:13,468 INFO L273 TraceCheckUtils]: 8: Hoare triple {1019#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {1019#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:13,469 INFO L273 TraceCheckUtils]: 7: Hoare triple {1026#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {1019#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:13,470 INFO L273 TraceCheckUtils]: 6: Hoare triple {1026#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {1026#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:13,472 INFO L273 TraceCheckUtils]: 5: Hoare triple {1033#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1026#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:13,472 INFO L273 TraceCheckUtils]: 4: Hoare triple {1033#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {1033#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:13,474 INFO L273 TraceCheckUtils]: 3: Hoare triple {1040#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {1033#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:13,475 INFO L273 TraceCheckUtils]: 2: Hoare triple {1040#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {1040#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:52:13,476 INFO L273 TraceCheckUtils]: 1: Hoare triple {1047#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1040#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:52:13,478 INFO L273 TraceCheckUtils]: 0: Hoare triple {921#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1047#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:52:13,481 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:13,500 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:52:13,500 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 29 [2018-12-18 17:52:13,500 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:52:13,501 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 17 [2018-12-18 17:52:13,501 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:52:13,501 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 21 states. [2018-12-18 17:52:13,555 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:13,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-18 17:52:13,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-18 17:52:13,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=772, Unknown=0, NotChecked=0, Total=930 [2018-12-18 17:52:13,556 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 21 states. [2018-12-18 17:52:14,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:14,521 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-12-18 17:52:14,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-18 17:52:14,522 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 17 [2018-12-18 17:52:14,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:14,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-12-18 17:52:14,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 22 transitions. [2018-12-18 17:52:14,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-12-18 17:52:14,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 22 transitions. [2018-12-18 17:52:14,524 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 22 transitions. [2018-12-18 17:52:14,553 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:14,554 INFO L225 Difference]: With dead ends: 22 [2018-12-18 17:52:14,555 INFO L226 Difference]: Without dead ends: 21 [2018-12-18 17:52:14,556 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=158, Invalid=772, Unknown=0, NotChecked=0, Total=930 [2018-12-18 17:52:14,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-12-18 17:52:14,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2018-12-18 17:52:14,593 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:14,593 INFO L82 GeneralOperation]: Start isEquivalent. First operand 21 states. Second operand 20 states. [2018-12-18 17:52:14,593 INFO L74 IsIncluded]: Start isIncluded. First operand 21 states. Second operand 20 states. [2018-12-18 17:52:14,593 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 20 states. [2018-12-18 17:52:14,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:14,595 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-12-18 17:52:14,595 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-12-18 17:52:14,595 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:14,596 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:14,596 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand 21 states. [2018-12-18 17:52:14,596 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 21 states. [2018-12-18 17:52:14,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:14,597 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-12-18 17:52:14,598 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-12-18 17:52:14,601 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:14,601 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:14,601 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:14,601 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:14,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-12-18 17:52:14,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2018-12-18 17:52:14,602 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 17 [2018-12-18 17:52:14,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:14,603 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2018-12-18 17:52:14,603 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-18 17:52:14,603 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2018-12-18 17:52:14,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-18 17:52:14,604 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:14,604 INFO L402 BasicCegarLoop]: trace histogram [9, 8, 1, 1] [2018-12-18 17:52:14,604 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:14,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:14,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1758521584, now seen corresponding path program 8 times [2018-12-18 17:52:14,605 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:14,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:14,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:52:14,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:14,607 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:15,150 INFO L273 TraceCheckUtils]: 0: Hoare triple {1153#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1155#(and (or (<= main_n 8) (<= main_i 0)) (or (<= 0 main_i) (< 8 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,152 INFO L273 TraceCheckUtils]: 1: Hoare triple {1155#(and (or (<= main_n 8) (<= main_i 0)) (or (<= 0 main_i) (< 8 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1156#(and (or (< 8 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 8) (<= main_i 4)))} is VALID [2018-12-18 17:52:15,153 INFO L273 TraceCheckUtils]: 2: Hoare triple {1156#(and (or (< 8 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 8) (<= main_i 4)))} assume i <= n * 4; {1156#(and (or (< 8 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 8) (<= main_i 4)))} is VALID [2018-12-18 17:52:15,154 INFO L273 TraceCheckUtils]: 3: Hoare triple {1156#(and (or (< 8 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 8) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {1157#(and (or (< 8 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 8)))} is VALID [2018-12-18 17:52:15,155 INFO L273 TraceCheckUtils]: 4: Hoare triple {1157#(and (or (< 8 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 8)))} assume i <= n * 4; {1157#(and (or (< 8 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 8)))} is VALID [2018-12-18 17:52:15,156 INFO L273 TraceCheckUtils]: 5: Hoare triple {1157#(and (or (< 8 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 8)))} assume a[i] != 23;i := i + 4; {1158#(and (or (<= main_n 8) (<= main_i 12)) (or (< 8 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,157 INFO L273 TraceCheckUtils]: 6: Hoare triple {1158#(and (or (<= main_n 8) (<= main_i 12)) (or (< 8 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1158#(and (or (<= main_n 8) (<= main_i 12)) (or (< 8 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,158 INFO L273 TraceCheckUtils]: 7: Hoare triple {1158#(and (or (<= main_n 8) (<= main_i 12)) (or (< 8 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1159#(and (or (<= main_n 8) (<= main_i 16)) (or (< 8 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,159 INFO L273 TraceCheckUtils]: 8: Hoare triple {1159#(and (or (<= main_n 8) (<= main_i 16)) (or (< 8 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1159#(and (or (<= main_n 8) (<= main_i 16)) (or (< 8 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,160 INFO L273 TraceCheckUtils]: 9: Hoare triple {1159#(and (or (<= main_n 8) (<= main_i 16)) (or (< 8 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1160#(and (or (<= main_n 8) (<= main_i 20)) (or (< 8 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,161 INFO L273 TraceCheckUtils]: 10: Hoare triple {1160#(and (or (<= main_n 8) (<= main_i 20)) (or (< 8 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1160#(and (or (<= main_n 8) (<= main_i 20)) (or (< 8 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,163 INFO L273 TraceCheckUtils]: 11: Hoare triple {1160#(and (or (<= main_n 8) (<= main_i 20)) (or (< 8 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1161#(and (or (<= main_n 8) (<= main_i 24)) (or (< 8 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,163 INFO L273 TraceCheckUtils]: 12: Hoare triple {1161#(and (or (<= main_n 8) (<= main_i 24)) (or (< 8 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1161#(and (or (<= main_n 8) (<= main_i 24)) (or (< 8 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,165 INFO L273 TraceCheckUtils]: 13: Hoare triple {1161#(and (or (<= main_n 8) (<= main_i 24)) (or (< 8 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1162#(and (or (<= main_n 8) (<= main_i 28)) (or (<= 28 main_i) (< 8 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,166 INFO L273 TraceCheckUtils]: 14: Hoare triple {1162#(and (or (<= main_n 8) (<= main_i 28)) (or (<= 28 main_i) (< 8 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1162#(and (or (<= main_n 8) (<= main_i 28)) (or (<= 28 main_i) (< 8 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,167 INFO L273 TraceCheckUtils]: 15: Hoare triple {1162#(and (or (<= main_n 8) (<= main_i 28)) (or (<= 28 main_i) (< 8 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1163#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 32) (<= main_n 8)) (or (< 8 main_n) (<= (* 4 main_n) main_i)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2018-12-18 17:52:15,170 INFO L273 TraceCheckUtils]: 16: Hoare triple {1163#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 32) (<= main_n 8)) (or (< 8 main_n) (<= (* 4 main_n) main_i)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {1164#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 32) (< 8 main_n))))} is VALID [2018-12-18 17:52:15,171 INFO L273 TraceCheckUtils]: 17: Hoare triple {1164#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 32) (< 8 main_n))))} assume a[i] != 23;i := i + 4; {1165#(and (<= main_i 36) (<= 9 main_n))} is VALID [2018-12-18 17:52:15,172 INFO L273 TraceCheckUtils]: 18: Hoare triple {1165#(and (<= main_i 36) (<= 9 main_n))} assume !(i <= n * 4); {1154#false} is VALID [2018-12-18 17:52:15,174 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:15,174 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:15,174 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:52:15,174 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:52:15,174 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:52:15,174 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:15,174 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:52:15,185 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-18 17:52:15,185 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-18 17:52:15,196 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2018-12-18 17:52:15,196 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:52:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:15,205 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:52:15,219 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:52:15,226 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:15,236 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:15,236 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:52:15,238 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:15,238 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_12]. (and (= (store v_main_a_12 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:52:15,238 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:52:15,608 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:52:15,610 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:15,615 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:15,615 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:52:15,618 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:15,618 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 36) (not (= (select main_a 32) 23)) (<= 32 .cse0) (= 23 (select main_a .cse0)))) [2018-12-18 17:52:15,619 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 36) (not (= 32 .cse0)) (<= 32 .cse0))) [2018-12-18 17:52:15,634 INFO L273 TraceCheckUtils]: 0: Hoare triple {1153#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1169#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,635 INFO L273 TraceCheckUtils]: 1: Hoare triple {1169#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1173#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:15,639 INFO L273 TraceCheckUtils]: 2: Hoare triple {1173#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {1173#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:15,645 INFO L273 TraceCheckUtils]: 3: Hoare triple {1173#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {1180#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,645 INFO L273 TraceCheckUtils]: 4: Hoare triple {1180#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1180#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,646 INFO L273 TraceCheckUtils]: 5: Hoare triple {1180#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1187#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:15,646 INFO L273 TraceCheckUtils]: 6: Hoare triple {1187#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {1187#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:15,647 INFO L273 TraceCheckUtils]: 7: Hoare triple {1187#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {1194#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,647 INFO L273 TraceCheckUtils]: 8: Hoare triple {1194#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1194#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,648 INFO L273 TraceCheckUtils]: 9: Hoare triple {1194#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1201#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,649 INFO L273 TraceCheckUtils]: 10: Hoare triple {1201#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1201#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,649 INFO L273 TraceCheckUtils]: 11: Hoare triple {1201#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1208#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,650 INFO L273 TraceCheckUtils]: 12: Hoare triple {1208#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1208#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,650 INFO L273 TraceCheckUtils]: 13: Hoare triple {1208#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1215#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,651 INFO L273 TraceCheckUtils]: 14: Hoare triple {1215#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1215#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,652 INFO L273 TraceCheckUtils]: 15: Hoare triple {1215#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1222#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,653 INFO L273 TraceCheckUtils]: 16: Hoare triple {1222#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1226#(and (= main_i 32) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:15,654 INFO L273 TraceCheckUtils]: 17: Hoare triple {1226#(and (= main_i 32) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1165#(and (<= main_i 36) (<= 9 main_n))} is VALID [2018-12-18 17:52:15,654 INFO L273 TraceCheckUtils]: 18: Hoare triple {1165#(and (<= main_i 36) (<= 9 main_n))} assume !(i <= n * 4); {1154#false} is VALID [2018-12-18 17:52:15,656 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:15,656 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:52:16,472 INFO L273 TraceCheckUtils]: 18: Hoare triple {1233#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {1154#false} is VALID [2018-12-18 17:52:16,473 INFO L273 TraceCheckUtils]: 17: Hoare triple {1237#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {1233#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:52:16,474 INFO L273 TraceCheckUtils]: 16: Hoare triple {1241#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {1237#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:16,475 INFO L273 TraceCheckUtils]: 15: Hoare triple {1245#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {1241#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:16,475 INFO L273 TraceCheckUtils]: 14: Hoare triple {1245#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {1245#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:16,476 INFO L273 TraceCheckUtils]: 13: Hoare triple {1252#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {1245#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:16,477 INFO L273 TraceCheckUtils]: 12: Hoare triple {1252#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {1252#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:16,478 INFO L273 TraceCheckUtils]: 11: Hoare triple {1259#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {1252#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:16,479 INFO L273 TraceCheckUtils]: 10: Hoare triple {1259#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {1259#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:16,480 INFO L273 TraceCheckUtils]: 9: Hoare triple {1266#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {1259#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:16,481 INFO L273 TraceCheckUtils]: 8: Hoare triple {1266#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {1266#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:16,482 INFO L273 TraceCheckUtils]: 7: Hoare triple {1273#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1266#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:16,483 INFO L273 TraceCheckUtils]: 6: Hoare triple {1273#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {1273#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:16,484 INFO L273 TraceCheckUtils]: 5: Hoare triple {1280#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {1273#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:16,485 INFO L273 TraceCheckUtils]: 4: Hoare triple {1280#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {1280#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:52:16,486 INFO L273 TraceCheckUtils]: 3: Hoare triple {1287#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1280#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:52:16,487 INFO L273 TraceCheckUtils]: 2: Hoare triple {1287#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {1287#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:52:16,488 INFO L273 TraceCheckUtils]: 1: Hoare triple {1294#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1287#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:52:16,489 INFO L273 TraceCheckUtils]: 0: Hoare triple {1153#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1294#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:52:16,492 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:16,511 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:52:16,511 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 32 [2018-12-18 17:52:16,511 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:52:16,512 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 19 [2018-12-18 17:52:16,512 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:52:16,512 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states. [2018-12-18 17:52:16,559 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:16,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-12-18 17:52:16,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-12-18 17:52:16,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=938, Unknown=0, NotChecked=0, Total=1122 [2018-12-18 17:52:16,560 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 23 states. [2018-12-18 17:52:17,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:17,199 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-12-18 17:52:17,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-18 17:52:17,199 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 19 [2018-12-18 17:52:17,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:17,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-12-18 17:52:17,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 24 transitions. [2018-12-18 17:52:17,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-12-18 17:52:17,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 24 transitions. [2018-12-18 17:52:17,201 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 24 transitions. [2018-12-18 17:52:17,236 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:17,237 INFO L225 Difference]: With dead ends: 24 [2018-12-18 17:52:17,237 INFO L226 Difference]: Without dead ends: 23 [2018-12-18 17:52:17,238 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=184, Invalid=938, Unknown=0, NotChecked=0, Total=1122 [2018-12-18 17:52:17,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-12-18 17:52:17,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-12-18 17:52:17,286 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:17,286 INFO L82 GeneralOperation]: Start isEquivalent. First operand 23 states. Second operand 22 states. [2018-12-18 17:52:17,286 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 22 states. [2018-12-18 17:52:17,287 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 22 states. [2018-12-18 17:52:17,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:17,288 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-12-18 17:52:17,289 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-12-18 17:52:17,289 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:17,289 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:17,289 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand 23 states. [2018-12-18 17:52:17,289 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 23 states. [2018-12-18 17:52:17,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:17,291 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-12-18 17:52:17,291 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-12-18 17:52:17,291 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:17,291 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:17,291 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:17,292 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:17,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-12-18 17:52:17,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-12-18 17:52:17,293 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 19 [2018-12-18 17:52:17,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:17,293 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-12-18 17:52:17,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-12-18 17:52:17,293 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-12-18 17:52:17,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-18 17:52:17,294 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:17,294 INFO L402 BasicCegarLoop]: trace histogram [10, 9, 1, 1] [2018-12-18 17:52:17,294 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:17,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:17,294 INFO L82 PathProgramCache]: Analyzing trace with hash 2017095986, now seen corresponding path program 9 times [2018-12-18 17:52:17,295 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:17,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:17,296 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:52:17,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:17,296 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:17,938 INFO L273 TraceCheckUtils]: 0: Hoare triple {1410#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1412#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)) (or (<= main_n 9) (<= main_i 0)))} is VALID [2018-12-18 17:52:17,939 INFO L273 TraceCheckUtils]: 1: Hoare triple {1412#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)) (or (<= main_n 9) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {1413#(and (or (<= main_n 9) (<= main_i 4)) (or (< 9 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2018-12-18 17:52:17,940 INFO L273 TraceCheckUtils]: 2: Hoare triple {1413#(and (or (<= main_n 9) (<= main_i 4)) (or (< 9 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {1413#(and (or (<= main_n 9) (<= main_i 4)) (or (< 9 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2018-12-18 17:52:17,941 INFO L273 TraceCheckUtils]: 3: Hoare triple {1413#(and (or (<= main_n 9) (<= main_i 4)) (or (< 9 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {1414#(and (or (<= main_i 8) (<= main_n 9)) (or (< 9 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:17,942 INFO L273 TraceCheckUtils]: 4: Hoare triple {1414#(and (or (<= main_i 8) (<= main_n 9)) (or (< 9 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {1414#(and (or (<= main_i 8) (<= main_n 9)) (or (< 9 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:17,944 INFO L273 TraceCheckUtils]: 5: Hoare triple {1414#(and (or (<= main_i 8) (<= main_n 9)) (or (< 9 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {1415#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)) (or (<= main_n 9) (<= main_i 12)))} is VALID [2018-12-18 17:52:17,944 INFO L273 TraceCheckUtils]: 6: Hoare triple {1415#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)) (or (<= main_n 9) (<= main_i 12)))} assume i <= n * 4; {1415#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)) (or (<= main_n 9) (<= main_i 12)))} is VALID [2018-12-18 17:52:17,946 INFO L273 TraceCheckUtils]: 7: Hoare triple {1415#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)) (or (<= main_n 9) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {1416#(and (or (< 9 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 16)))} is VALID [2018-12-18 17:52:17,947 INFO L273 TraceCheckUtils]: 8: Hoare triple {1416#(and (or (< 9 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 16)))} assume i <= n * 4; {1416#(and (or (< 9 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 16)))} is VALID [2018-12-18 17:52:17,948 INFO L273 TraceCheckUtils]: 9: Hoare triple {1416#(and (or (< 9 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {1417#(and (or (< 9 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 20)))} is VALID [2018-12-18 17:52:17,949 INFO L273 TraceCheckUtils]: 10: Hoare triple {1417#(and (or (< 9 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 20)))} assume i <= n * 4; {1417#(and (or (< 9 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 20)))} is VALID [2018-12-18 17:52:17,950 INFO L273 TraceCheckUtils]: 11: Hoare triple {1417#(and (or (< 9 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 9) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {1418#(and (or (<= main_n 9) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} is VALID [2018-12-18 17:52:17,951 INFO L273 TraceCheckUtils]: 12: Hoare triple {1418#(and (or (<= main_n 9) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} assume i <= n * 4; {1418#(and (or (<= main_n 9) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} is VALID [2018-12-18 17:52:17,952 INFO L273 TraceCheckUtils]: 13: Hoare triple {1418#(and (or (<= main_n 9) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} assume a[i] != 23;i := i + 4; {1419#(and (or (<= main_n 9) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} is VALID [2018-12-18 17:52:17,953 INFO L273 TraceCheckUtils]: 14: Hoare triple {1419#(and (or (<= main_n 9) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} assume i <= n * 4; {1419#(and (or (<= main_n 9) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} is VALID [2018-12-18 17:52:17,954 INFO L273 TraceCheckUtils]: 15: Hoare triple {1419#(and (or (<= main_n 9) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 9 main_n)))} assume a[i] != 23;i := i + 4; {1420#(and (or (< 9 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 9)))} is VALID [2018-12-18 17:52:17,955 INFO L273 TraceCheckUtils]: 16: Hoare triple {1420#(and (or (< 9 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 9)))} assume i <= n * 4; {1420#(and (or (< 9 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 9)))} is VALID [2018-12-18 17:52:17,959 INFO L273 TraceCheckUtils]: 17: Hoare triple {1420#(and (or (< 9 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 9)))} assume a[i] != 23;i := i + 4; {1421#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 9 main_n)) (or (<= main_i 36) (<= main_n 9)))} is VALID [2018-12-18 17:52:17,960 INFO L273 TraceCheckUtils]: 18: Hoare triple {1421#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 9 main_n)) (or (<= main_i 36) (<= main_n 9)))} assume i <= n * 4; {1422#(and (<= main_i 36) (or (< 9 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2018-12-18 17:52:17,961 INFO L273 TraceCheckUtils]: 19: Hoare triple {1422#(and (<= main_i 36) (or (< 9 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {1423#(and (<= main_i 40) (<= 10 main_n))} is VALID [2018-12-18 17:52:17,961 INFO L273 TraceCheckUtils]: 20: Hoare triple {1423#(and (<= main_i 40) (<= 10 main_n))} assume !(i <= n * 4); {1411#false} is VALID [2018-12-18 17:52:17,964 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:17,964 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:17,964 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:52:17,964 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:52:17,965 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:52:17,965 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:17,965 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:52:17,975 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-18 17:52:17,976 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-18 17:52:17,993 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-18 17:52:17,993 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:52:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:17,999 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:52:18,014 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:52:18,016 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:18,024 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:18,024 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:52:18,026 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:18,026 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_13]. (and (= main_a (store v_main_a_13 (* 4 main_n) 23)) (= main_i 0)) [2018-12-18 17:52:18,026 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:52:18,490 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:52:18,493 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:18,499 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:18,500 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:52:18,504 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:18,504 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 40) (not (= (select main_a 36) 23)) (= 23 (select main_a .cse0)) (<= 36 .cse0))) [2018-12-18 17:52:18,504 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 40) (not (= 36 .cse0)) (<= 36 .cse0))) [2018-12-18 17:52:18,520 INFO L273 TraceCheckUtils]: 0: Hoare triple {1410#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1427#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:18,521 INFO L273 TraceCheckUtils]: 1: Hoare triple {1427#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1431#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:18,521 INFO L273 TraceCheckUtils]: 2: Hoare triple {1431#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {1431#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:18,522 INFO L273 TraceCheckUtils]: 3: Hoare triple {1431#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {1438#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:18,522 INFO L273 TraceCheckUtils]: 4: Hoare triple {1438#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1438#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:18,522 INFO L273 TraceCheckUtils]: 5: Hoare triple {1438#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1445#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:18,523 INFO L273 TraceCheckUtils]: 6: Hoare triple {1445#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {1445#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:18,523 INFO L273 TraceCheckUtils]: 7: Hoare triple {1445#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {1452#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:18,524 INFO L273 TraceCheckUtils]: 8: Hoare triple {1452#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1452#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:18,525 INFO L273 TraceCheckUtils]: 9: Hoare triple {1452#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1459#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:18,526 INFO L273 TraceCheckUtils]: 10: Hoare triple {1459#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1459#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:18,526 INFO L273 TraceCheckUtils]: 11: Hoare triple {1459#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1466#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:18,527 INFO L273 TraceCheckUtils]: 12: Hoare triple {1466#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1466#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:18,528 INFO L273 TraceCheckUtils]: 13: Hoare triple {1466#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1473#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:18,529 INFO L273 TraceCheckUtils]: 14: Hoare triple {1473#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1473#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:18,530 INFO L273 TraceCheckUtils]: 15: Hoare triple {1473#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1480#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:18,530 INFO L273 TraceCheckUtils]: 16: Hoare triple {1480#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1480#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:18,531 INFO L273 TraceCheckUtils]: 17: Hoare triple {1480#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1487#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:18,532 INFO L273 TraceCheckUtils]: 18: Hoare triple {1487#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1491#(and (= main_i 36) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:18,533 INFO L273 TraceCheckUtils]: 19: Hoare triple {1491#(and (= main_i 36) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1423#(and (<= main_i 40) (<= 10 main_n))} is VALID [2018-12-18 17:52:18,534 INFO L273 TraceCheckUtils]: 20: Hoare triple {1423#(and (<= main_i 40) (<= 10 main_n))} assume !(i <= n * 4); {1411#false} is VALID [2018-12-18 17:52:18,536 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:18,536 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:52:19,065 INFO L273 TraceCheckUtils]: 20: Hoare triple {1498#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {1411#false} is VALID [2018-12-18 17:52:19,066 INFO L273 TraceCheckUtils]: 19: Hoare triple {1502#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {1498#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:52:19,076 INFO L273 TraceCheckUtils]: 18: Hoare triple {1506#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {1502#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:19,077 INFO L273 TraceCheckUtils]: 17: Hoare triple {1510#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {1506#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:19,077 INFO L273 TraceCheckUtils]: 16: Hoare triple {1510#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {1510#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:19,078 INFO L273 TraceCheckUtils]: 15: Hoare triple {1517#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {1510#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:19,078 INFO L273 TraceCheckUtils]: 14: Hoare triple {1517#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {1517#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:19,079 INFO L273 TraceCheckUtils]: 13: Hoare triple {1524#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {1517#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:19,080 INFO L273 TraceCheckUtils]: 12: Hoare triple {1524#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {1524#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:19,081 INFO L273 TraceCheckUtils]: 11: Hoare triple {1531#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {1524#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:19,081 INFO L273 TraceCheckUtils]: 10: Hoare triple {1531#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {1531#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:19,083 INFO L273 TraceCheckUtils]: 9: Hoare triple {1538#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1531#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:19,083 INFO L273 TraceCheckUtils]: 8: Hoare triple {1538#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {1538#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:19,084 INFO L273 TraceCheckUtils]: 7: Hoare triple {1545#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {1538#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:19,085 INFO L273 TraceCheckUtils]: 6: Hoare triple {1545#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {1545#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:52:19,086 INFO L273 TraceCheckUtils]: 5: Hoare triple {1552#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1545#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:52:19,087 INFO L273 TraceCheckUtils]: 4: Hoare triple {1552#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {1552#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:52:19,088 INFO L273 TraceCheckUtils]: 3: Hoare triple {1559#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1552#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:52:19,089 INFO L273 TraceCheckUtils]: 2: Hoare triple {1559#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {1559#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:52:19,090 INFO L273 TraceCheckUtils]: 1: Hoare triple {1566#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1559#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:52:19,091 INFO L273 TraceCheckUtils]: 0: Hoare triple {1410#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1566#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:52:19,094 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:19,113 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:52:19,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 35 [2018-12-18 17:52:19,113 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:52:19,114 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 21 [2018-12-18 17:52:19,114 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:52:19,114 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 25 states. [2018-12-18 17:52:19,165 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:19,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-12-18 17:52:19,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-12-18 17:52:19,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1120, Unknown=0, NotChecked=0, Total=1332 [2018-12-18 17:52:19,166 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 25 states. [2018-12-18 17:52:20,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:20,072 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-12-18 17:52:20,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-18 17:52:20,073 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 21 [2018-12-18 17:52:20,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:20,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-18 17:52:20,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 26 transitions. [2018-12-18 17:52:20,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-18 17:52:20,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 26 transitions. [2018-12-18 17:52:20,075 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states and 26 transitions. [2018-12-18 17:52:20,105 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:20,106 INFO L225 Difference]: With dead ends: 26 [2018-12-18 17:52:20,106 INFO L226 Difference]: Without dead ends: 25 [2018-12-18 17:52:20,107 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=212, Invalid=1120, Unknown=0, NotChecked=0, Total=1332 [2018-12-18 17:52:20,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-12-18 17:52:20,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2018-12-18 17:52:20,144 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:20,144 INFO L82 GeneralOperation]: Start isEquivalent. First operand 25 states. Second operand 24 states. [2018-12-18 17:52:20,145 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand 24 states. [2018-12-18 17:52:20,145 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 24 states. [2018-12-18 17:52:20,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:20,147 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2018-12-18 17:52:20,147 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-12-18 17:52:20,147 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:20,148 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:20,148 INFO L74 IsIncluded]: Start isIncluded. First operand 24 states. Second operand 25 states. [2018-12-18 17:52:20,148 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 25 states. [2018-12-18 17:52:20,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:20,149 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2018-12-18 17:52:20,149 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-12-18 17:52:20,149 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:20,150 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:20,150 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:20,150 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:20,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-12-18 17:52:20,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-12-18 17:52:20,151 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 21 [2018-12-18 17:52:20,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:20,151 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-12-18 17:52:20,151 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-12-18 17:52:20,151 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-12-18 17:52:20,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-18 17:52:20,152 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:20,152 INFO L402 BasicCegarLoop]: trace histogram [11, 10, 1, 1] [2018-12-18 17:52:20,152 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:20,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:20,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1398993140, now seen corresponding path program 10 times [2018-12-18 17:52:20,153 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:20,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:20,153 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:52:20,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:20,154 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:20,855 INFO L273 TraceCheckUtils]: 0: Hoare triple {1692#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1694#(and (or (<= main_n 10) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} is VALID [2018-12-18 17:52:20,856 INFO L273 TraceCheckUtils]: 1: Hoare triple {1694#(and (or (<= main_n 10) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} assume a[i] != 23;i := i + 4; {1695#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 10 main_n)) (or (<= main_n 10) (<= main_i 4)))} is VALID [2018-12-18 17:52:20,857 INFO L273 TraceCheckUtils]: 2: Hoare triple {1695#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 10 main_n)) (or (<= main_n 10) (<= main_i 4)))} assume i <= n * 4; {1695#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 10 main_n)) (or (<= main_n 10) (<= main_i 4)))} is VALID [2018-12-18 17:52:20,859 INFO L273 TraceCheckUtils]: 3: Hoare triple {1695#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 10 main_n)) (or (<= main_n 10) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {1696#(and (or (<= main_i 8) (<= main_n 10)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} is VALID [2018-12-18 17:52:20,860 INFO L273 TraceCheckUtils]: 4: Hoare triple {1696#(and (or (<= main_i 8) (<= main_n 10)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} assume i <= n * 4; {1696#(and (or (<= main_i 8) (<= main_n 10)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} is VALID [2018-12-18 17:52:20,861 INFO L273 TraceCheckUtils]: 5: Hoare triple {1696#(and (or (<= main_i 8) (<= main_n 10)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} assume a[i] != 23;i := i + 4; {1697#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 12)))} is VALID [2018-12-18 17:52:20,862 INFO L273 TraceCheckUtils]: 6: Hoare triple {1697#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 12)))} assume i <= n * 4; {1697#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 12)))} is VALID [2018-12-18 17:52:20,863 INFO L273 TraceCheckUtils]: 7: Hoare triple {1697#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {1698#(and (or (<= main_n 10) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} is VALID [2018-12-18 17:52:20,864 INFO L273 TraceCheckUtils]: 8: Hoare triple {1698#(and (or (<= main_n 10) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} assume i <= n * 4; {1698#(and (or (<= main_n 10) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} is VALID [2018-12-18 17:52:20,866 INFO L273 TraceCheckUtils]: 9: Hoare triple {1698#(and (or (<= main_n 10) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} assume a[i] != 23;i := i + 4; {1699#(and (or (< 10 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 10) (<= main_i 20)))} is VALID [2018-12-18 17:52:20,867 INFO L273 TraceCheckUtils]: 10: Hoare triple {1699#(and (or (< 10 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 10) (<= main_i 20)))} assume i <= n * 4; {1699#(and (or (< 10 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 10) (<= main_i 20)))} is VALID [2018-12-18 17:52:20,868 INFO L273 TraceCheckUtils]: 11: Hoare triple {1699#(and (or (< 10 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 10) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {1700#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 24)))} is VALID [2018-12-18 17:52:20,869 INFO L273 TraceCheckUtils]: 12: Hoare triple {1700#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 24)))} assume i <= n * 4; {1700#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 24)))} is VALID [2018-12-18 17:52:20,870 INFO L273 TraceCheckUtils]: 13: Hoare triple {1700#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_n 10) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {1701#(and (or (<= main_n 10) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} is VALID [2018-12-18 17:52:20,873 INFO L273 TraceCheckUtils]: 14: Hoare triple {1701#(and (or (<= main_n 10) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} assume i <= n * 4; {1701#(and (or (<= main_n 10) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} is VALID [2018-12-18 17:52:20,875 INFO L273 TraceCheckUtils]: 15: Hoare triple {1701#(and (or (<= main_n 10) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)))} assume a[i] != 23;i := i + 4; {1702#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_i 32) (<= main_n 10)))} is VALID [2018-12-18 17:52:20,875 INFO L273 TraceCheckUtils]: 16: Hoare triple {1702#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_i 32) (<= main_n 10)))} assume i <= n * 4; {1702#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_i 32) (<= main_n 10)))} is VALID [2018-12-18 17:52:20,876 INFO L273 TraceCheckUtils]: 17: Hoare triple {1702#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 10 main_n)) (or (<= main_i 32) (<= main_n 10)))} assume a[i] != 23;i := i + 4; {1703#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 10 main_n)) (or (<= main_i 36) (<= main_n 10)))} is VALID [2018-12-18 17:52:20,877 INFO L273 TraceCheckUtils]: 18: Hoare triple {1703#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 10 main_n)) (or (<= main_i 36) (<= main_n 10)))} assume i <= n * 4; {1703#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 10 main_n)) (or (<= main_i 36) (<= main_n 10)))} is VALID [2018-12-18 17:52:20,878 INFO L273 TraceCheckUtils]: 19: Hoare triple {1703#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 10 main_n)) (or (<= main_i 36) (<= main_n 10)))} assume a[i] != 23;i := i + 4; {1704#(and (or (<= main_i 40) (<= main_n 10)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 10 main_n)))} is VALID [2018-12-18 17:52:20,880 INFO L273 TraceCheckUtils]: 20: Hoare triple {1704#(and (or (<= main_i 40) (<= main_n 10)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 10 main_n)))} assume i <= n * 4; {1705#(and (<= main_i 40) (or (< 10 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2018-12-18 17:52:20,881 INFO L273 TraceCheckUtils]: 21: Hoare triple {1705#(and (<= main_i 40) (or (< 10 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {1706#(and (< 10 main_n) (<= main_i 44))} is VALID [2018-12-18 17:52:20,882 INFO L273 TraceCheckUtils]: 22: Hoare triple {1706#(and (< 10 main_n) (<= main_i 44))} assume !(i <= n * 4); {1693#false} is VALID [2018-12-18 17:52:20,887 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:20,887 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:20,887 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:52:20,887 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:52:20,887 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:52:20,887 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:20,887 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:52:20,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:52:20,896 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-18 17:52:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:20,913 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:52:20,929 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:52:20,932 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:20,942 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:20,942 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:52:20,946 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:20,947 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_14]. (and (= (store v_main_a_14 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:52:20,947 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:52:21,676 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:52:21,680 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:21,685 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:21,685 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:52:21,693 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:21,693 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 40 .cse0) (not (= (select main_a 40) 23)) (= 23 (select main_a .cse0)) (<= main_i 44))) [2018-12-18 17:52:21,693 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 40 .cse0) (not (= 40 .cse0)) (<= main_i 44))) [2018-12-18 17:52:21,710 INFO L273 TraceCheckUtils]: 0: Hoare triple {1692#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1710#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:21,713 INFO L273 TraceCheckUtils]: 1: Hoare triple {1710#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1714#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:21,714 INFO L273 TraceCheckUtils]: 2: Hoare triple {1714#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {1714#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:21,714 INFO L273 TraceCheckUtils]: 3: Hoare triple {1714#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {1721#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:21,715 INFO L273 TraceCheckUtils]: 4: Hoare triple {1721#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1721#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:21,715 INFO L273 TraceCheckUtils]: 5: Hoare triple {1721#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1728#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:21,719 INFO L273 TraceCheckUtils]: 6: Hoare triple {1728#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {1728#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:21,721 INFO L273 TraceCheckUtils]: 7: Hoare triple {1728#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {1735#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:21,721 INFO L273 TraceCheckUtils]: 8: Hoare triple {1735#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1735#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:21,722 INFO L273 TraceCheckUtils]: 9: Hoare triple {1735#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1742#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:21,722 INFO L273 TraceCheckUtils]: 10: Hoare triple {1742#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1742#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:21,723 INFO L273 TraceCheckUtils]: 11: Hoare triple {1742#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1749#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:21,723 INFO L273 TraceCheckUtils]: 12: Hoare triple {1749#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1749#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:21,724 INFO L273 TraceCheckUtils]: 13: Hoare triple {1749#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1756#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:21,724 INFO L273 TraceCheckUtils]: 14: Hoare triple {1756#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1756#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:21,725 INFO L273 TraceCheckUtils]: 15: Hoare triple {1756#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1763#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:21,725 INFO L273 TraceCheckUtils]: 16: Hoare triple {1763#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1763#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:21,726 INFO L273 TraceCheckUtils]: 17: Hoare triple {1763#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1770#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:21,727 INFO L273 TraceCheckUtils]: 18: Hoare triple {1770#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1770#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:21,728 INFO L273 TraceCheckUtils]: 19: Hoare triple {1770#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1777#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:21,728 INFO L273 TraceCheckUtils]: 20: Hoare triple {1777#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {1781#(and (<= main_i (* 4 main_n)) (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:21,729 INFO L273 TraceCheckUtils]: 21: Hoare triple {1781#(and (<= main_i (* 4 main_n)) (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {1706#(and (< 10 main_n) (<= main_i 44))} is VALID [2018-12-18 17:52:21,730 INFO L273 TraceCheckUtils]: 22: Hoare triple {1706#(and (< 10 main_n) (<= main_i 44))} assume !(i <= n * 4); {1693#false} is VALID [2018-12-18 17:52:21,733 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:21,733 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:52:22,362 INFO L273 TraceCheckUtils]: 22: Hoare triple {1788#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {1693#false} is VALID [2018-12-18 17:52:22,363 INFO L273 TraceCheckUtils]: 21: Hoare triple {1792#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {1788#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:52:22,364 INFO L273 TraceCheckUtils]: 20: Hoare triple {1796#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {1792#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:22,365 INFO L273 TraceCheckUtils]: 19: Hoare triple {1800#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {1796#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:22,366 INFO L273 TraceCheckUtils]: 18: Hoare triple {1800#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {1800#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:22,367 INFO L273 TraceCheckUtils]: 17: Hoare triple {1807#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {1800#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:22,367 INFO L273 TraceCheckUtils]: 16: Hoare triple {1807#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {1807#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:22,369 INFO L273 TraceCheckUtils]: 15: Hoare triple {1814#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {1807#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:22,369 INFO L273 TraceCheckUtils]: 14: Hoare triple {1814#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {1814#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:22,370 INFO L273 TraceCheckUtils]: 13: Hoare triple {1821#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {1814#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:22,371 INFO L273 TraceCheckUtils]: 12: Hoare triple {1821#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {1821#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:22,372 INFO L273 TraceCheckUtils]: 11: Hoare triple {1828#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1821#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:22,373 INFO L273 TraceCheckUtils]: 10: Hoare triple {1828#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {1828#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:22,374 INFO L273 TraceCheckUtils]: 9: Hoare triple {1835#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {1828#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:22,375 INFO L273 TraceCheckUtils]: 8: Hoare triple {1835#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {1835#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:52:22,376 INFO L273 TraceCheckUtils]: 7: Hoare triple {1842#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1835#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:52:22,376 INFO L273 TraceCheckUtils]: 6: Hoare triple {1842#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {1842#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:52:22,378 INFO L273 TraceCheckUtils]: 5: Hoare triple {1849#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1842#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:52:22,378 INFO L273 TraceCheckUtils]: 4: Hoare triple {1849#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {1849#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:52:22,379 INFO L273 TraceCheckUtils]: 3: Hoare triple {1856#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {1849#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:52:22,385 INFO L273 TraceCheckUtils]: 2: Hoare triple {1856#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {1856#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:52:22,387 INFO L273 TraceCheckUtils]: 1: Hoare triple {1863#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {1856#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:52:22,387 INFO L273 TraceCheckUtils]: 0: Hoare triple {1692#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {1863#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:52:22,390 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:22,409 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:52:22,409 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 38 [2018-12-18 17:52:22,409 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:52:22,410 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 23 [2018-12-18 17:52:22,410 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:52:22,410 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 27 states. [2018-12-18 17:52:22,467 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:22,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-12-18 17:52:22,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-12-18 17:52:22,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=1318, Unknown=0, NotChecked=0, Total=1560 [2018-12-18 17:52:22,469 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 27 states. [2018-12-18 17:52:23,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:23,467 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-12-18 17:52:23,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-18 17:52:23,468 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 23 [2018-12-18 17:52:23,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:23,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-18 17:52:23,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 28 transitions. [2018-12-18 17:52:23,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-18 17:52:23,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 28 transitions. [2018-12-18 17:52:23,470 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states and 28 transitions. [2018-12-18 17:52:23,525 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:23,526 INFO L225 Difference]: With dead ends: 28 [2018-12-18 17:52:23,526 INFO L226 Difference]: Without dead ends: 27 [2018-12-18 17:52:23,527 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=242, Invalid=1318, Unknown=0, NotChecked=0, Total=1560 [2018-12-18 17:52:23,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-18 17:52:23,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2018-12-18 17:52:23,608 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:23,609 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand 26 states. [2018-12-18 17:52:23,609 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 26 states. [2018-12-18 17:52:23,609 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 26 states. [2018-12-18 17:52:23,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:23,610 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-12-18 17:52:23,610 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-12-18 17:52:23,611 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:23,611 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:23,611 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 27 states. [2018-12-18 17:52:23,611 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 27 states. [2018-12-18 17:52:23,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:23,612 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-12-18 17:52:23,612 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-12-18 17:52:23,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:23,613 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:23,613 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:23,613 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:23,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-12-18 17:52:23,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2018-12-18 17:52:23,614 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 23 [2018-12-18 17:52:23,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:23,614 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2018-12-18 17:52:23,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-12-18 17:52:23,614 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2018-12-18 17:52:23,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-18 17:52:23,615 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:23,615 INFO L402 BasicCegarLoop]: trace histogram [12, 11, 1, 1] [2018-12-18 17:52:23,615 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:23,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:23,616 INFO L82 PathProgramCache]: Analyzing trace with hash 107644982, now seen corresponding path program 11 times [2018-12-18 17:52:23,616 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:23,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:23,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:52:23,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:23,617 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:23,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:24,486 INFO L273 TraceCheckUtils]: 0: Hoare triple {1999#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2001#(and (or (<= main_i 0) (<= main_n 11)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)))} is VALID [2018-12-18 17:52:24,488 INFO L273 TraceCheckUtils]: 1: Hoare triple {2001#(and (or (<= main_i 0) (<= main_n 11)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)))} assume a[i] != 23;i := i + 4; {2002#(and (or (< 11 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 11) (<= main_i 4)))} is VALID [2018-12-18 17:52:24,488 INFO L273 TraceCheckUtils]: 2: Hoare triple {2002#(and (or (< 11 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 11) (<= main_i 4)))} assume i <= n * 4; {2002#(and (or (< 11 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 11) (<= main_i 4)))} is VALID [2018-12-18 17:52:24,489 INFO L273 TraceCheckUtils]: 3: Hoare triple {2002#(and (or (< 11 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 11) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {2003#(and (or (<= main_i 8) (<= main_n 11)) (or (< 11 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:24,490 INFO L273 TraceCheckUtils]: 4: Hoare triple {2003#(and (or (<= main_i 8) (<= main_n 11)) (or (< 11 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {2003#(and (or (<= main_i 8) (<= main_n 11)) (or (< 11 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:24,491 INFO L273 TraceCheckUtils]: 5: Hoare triple {2003#(and (or (<= main_i 8) (<= main_n 11)) (or (< 11 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {2004#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_n 11) (<= main_i 12)))} is VALID [2018-12-18 17:52:24,492 INFO L273 TraceCheckUtils]: 6: Hoare triple {2004#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_n 11) (<= main_i 12)))} assume i <= n * 4; {2004#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_n 11) (<= main_i 12)))} is VALID [2018-12-18 17:52:24,494 INFO L273 TraceCheckUtils]: 7: Hoare triple {2004#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_n 11) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {2005#(and (or (<= main_n 11) (<= main_i 16)) (or (< 11 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:24,494 INFO L273 TraceCheckUtils]: 8: Hoare triple {2005#(and (or (<= main_n 11) (<= main_i 16)) (or (< 11 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {2005#(and (or (<= main_n 11) (<= main_i 16)) (or (< 11 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:24,495 INFO L273 TraceCheckUtils]: 9: Hoare triple {2005#(and (or (<= main_n 11) (<= main_i 16)) (or (< 11 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {2006#(and (or (<= main_i 20) (<= main_n 11)) (or (< 11 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:24,496 INFO L273 TraceCheckUtils]: 10: Hoare triple {2006#(and (or (<= main_i 20) (<= main_n 11)) (or (< 11 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {2006#(and (or (<= main_i 20) (<= main_n 11)) (or (< 11 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:24,497 INFO L273 TraceCheckUtils]: 11: Hoare triple {2006#(and (or (<= main_i 20) (<= main_n 11)) (or (< 11 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {2007#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_i 24) (<= main_n 11)))} is VALID [2018-12-18 17:52:24,498 INFO L273 TraceCheckUtils]: 12: Hoare triple {2007#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_i 24) (<= main_n 11)))} assume i <= n * 4; {2007#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_i 24) (<= main_n 11)))} is VALID [2018-12-18 17:52:24,499 INFO L273 TraceCheckUtils]: 13: Hoare triple {2007#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)) (or (<= main_i 24) (<= main_n 11)))} assume a[i] != 23;i := i + 4; {2008#(and (or (<= main_n 11) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)))} is VALID [2018-12-18 17:52:24,500 INFO L273 TraceCheckUtils]: 14: Hoare triple {2008#(and (or (<= main_n 11) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)))} assume i <= n * 4; {2008#(and (or (<= main_n 11) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)))} is VALID [2018-12-18 17:52:24,501 INFO L273 TraceCheckUtils]: 15: Hoare triple {2008#(and (or (<= main_n 11) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 11 main_n)))} assume a[i] != 23;i := i + 4; {2009#(and (or (<= main_i 32) (<= main_n 11)) (or (< 11 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:24,502 INFO L273 TraceCheckUtils]: 16: Hoare triple {2009#(and (or (<= main_i 32) (<= main_n 11)) (or (< 11 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {2009#(and (or (<= main_i 32) (<= main_n 11)) (or (< 11 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:24,503 INFO L273 TraceCheckUtils]: 17: Hoare triple {2009#(and (or (<= main_i 32) (<= main_n 11)) (or (< 11 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {2010#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 11 main_n)) (or (<= main_i 36) (<= main_n 11)))} is VALID [2018-12-18 17:52:24,504 INFO L273 TraceCheckUtils]: 18: Hoare triple {2010#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 11 main_n)) (or (<= main_i 36) (<= main_n 11)))} assume i <= n * 4; {2010#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 11 main_n)) (or (<= main_i 36) (<= main_n 11)))} is VALID [2018-12-18 17:52:24,505 INFO L273 TraceCheckUtils]: 19: Hoare triple {2010#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 11 main_n)) (or (<= main_i 36) (<= main_n 11)))} assume a[i] != 23;i := i + 4; {2011#(and (or (<= main_i 40) (<= main_n 11)) (or (< 11 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:24,506 INFO L273 TraceCheckUtils]: 20: Hoare triple {2011#(and (or (<= main_i 40) (<= main_n 11)) (or (< 11 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {2011#(and (or (<= main_i 40) (<= main_n 11)) (or (< 11 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:24,507 INFO L273 TraceCheckUtils]: 21: Hoare triple {2011#(and (or (<= main_i 40) (<= main_n 11)) (or (< 11 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {2012#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 11 main_n)) (or (<= main_n 11) (<= main_i 44)))} is VALID [2018-12-18 17:52:24,509 INFO L273 TraceCheckUtils]: 22: Hoare triple {2012#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 11 main_n)) (or (<= main_n 11) (<= main_i 44)))} assume i <= n * 4; {2013#(and (or (< 11 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 44))} is VALID [2018-12-18 17:52:24,510 INFO L273 TraceCheckUtils]: 23: Hoare triple {2013#(and (or (< 11 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 44))} assume a[i] != 23;i := i + 4; {2014#(and (< 11 main_n) (<= main_i 48))} is VALID [2018-12-18 17:52:24,510 INFO L273 TraceCheckUtils]: 24: Hoare triple {2014#(and (< 11 main_n) (<= main_i 48))} assume !(i <= n * 4); {2000#false} is VALID [2018-12-18 17:52:24,514 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:24,514 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:24,515 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:52:24,515 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:52:24,515 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:52:24,515 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:24,515 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:52:24,524 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-18 17:52:24,525 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-18 17:52:24,551 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2018-12-18 17:52:24,551 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:52:24,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:24,560 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:52:24,573 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:52:24,576 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:24,583 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:24,583 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:52:24,585 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:24,585 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_15]. (and (= main_a (store v_main_a_15 (* 4 main_n) 23)) (= main_i 0)) [2018-12-18 17:52:24,585 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:52:25,003 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:52:25,005 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:25,011 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:25,012 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:52:25,014 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:25,015 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 44 .cse0) (not (= (select main_a 44) 23)) (= 23 (select main_a .cse0)) (<= main_i 48))) [2018-12-18 17:52:25,015 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 44 .cse0)) (<= 44 .cse0) (<= main_i 48))) [2018-12-18 17:52:25,034 INFO L273 TraceCheckUtils]: 0: Hoare triple {1999#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2018#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:25,035 INFO L273 TraceCheckUtils]: 1: Hoare triple {2018#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2022#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:25,035 INFO L273 TraceCheckUtils]: 2: Hoare triple {2022#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {2022#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:25,036 INFO L273 TraceCheckUtils]: 3: Hoare triple {2022#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {2029#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:25,036 INFO L273 TraceCheckUtils]: 4: Hoare triple {2029#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2029#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:25,037 INFO L273 TraceCheckUtils]: 5: Hoare triple {2029#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2036#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:25,037 INFO L273 TraceCheckUtils]: 6: Hoare triple {2036#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {2036#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:25,038 INFO L273 TraceCheckUtils]: 7: Hoare triple {2036#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {2043#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:25,039 INFO L273 TraceCheckUtils]: 8: Hoare triple {2043#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2043#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:25,039 INFO L273 TraceCheckUtils]: 9: Hoare triple {2043#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2050#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:25,040 INFO L273 TraceCheckUtils]: 10: Hoare triple {2050#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2050#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:25,041 INFO L273 TraceCheckUtils]: 11: Hoare triple {2050#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2057#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:25,042 INFO L273 TraceCheckUtils]: 12: Hoare triple {2057#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2057#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:25,042 INFO L273 TraceCheckUtils]: 13: Hoare triple {2057#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2064#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:25,043 INFO L273 TraceCheckUtils]: 14: Hoare triple {2064#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2064#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:25,044 INFO L273 TraceCheckUtils]: 15: Hoare triple {2064#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2071#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:25,045 INFO L273 TraceCheckUtils]: 16: Hoare triple {2071#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2071#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:25,046 INFO L273 TraceCheckUtils]: 17: Hoare triple {2071#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2078#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:25,046 INFO L273 TraceCheckUtils]: 18: Hoare triple {2078#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2078#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:25,047 INFO L273 TraceCheckUtils]: 19: Hoare triple {2078#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2085#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:25,048 INFO L273 TraceCheckUtils]: 20: Hoare triple {2085#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2085#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:25,049 INFO L273 TraceCheckUtils]: 21: Hoare triple {2085#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2092#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:25,050 INFO L273 TraceCheckUtils]: 22: Hoare triple {2092#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2096#(and (= main_i 44) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:25,051 INFO L273 TraceCheckUtils]: 23: Hoare triple {2096#(and (= main_i 44) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2014#(and (< 11 main_n) (<= main_i 48))} is VALID [2018-12-18 17:52:25,051 INFO L273 TraceCheckUtils]: 24: Hoare triple {2014#(and (< 11 main_n) (<= main_i 48))} assume !(i <= n * 4); {2000#false} is VALID [2018-12-18 17:52:25,054 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:25,054 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:52:25,750 INFO L273 TraceCheckUtils]: 24: Hoare triple {2103#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {2000#false} is VALID [2018-12-18 17:52:25,751 INFO L273 TraceCheckUtils]: 23: Hoare triple {2107#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {2103#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:52:25,752 INFO L273 TraceCheckUtils]: 22: Hoare triple {2111#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {2107#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:25,753 INFO L273 TraceCheckUtils]: 21: Hoare triple {2115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {2111#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:25,754 INFO L273 TraceCheckUtils]: 20: Hoare triple {2115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {2115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:25,755 INFO L273 TraceCheckUtils]: 19: Hoare triple {2122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {2115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:25,756 INFO L273 TraceCheckUtils]: 18: Hoare triple {2122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {2122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:25,757 INFO L273 TraceCheckUtils]: 17: Hoare triple {2129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {2122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:25,757 INFO L273 TraceCheckUtils]: 16: Hoare triple {2129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {2129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:25,759 INFO L273 TraceCheckUtils]: 15: Hoare triple {2136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {2129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:25,759 INFO L273 TraceCheckUtils]: 14: Hoare triple {2136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {2136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:25,760 INFO L273 TraceCheckUtils]: 13: Hoare triple {2143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:25,761 INFO L273 TraceCheckUtils]: 12: Hoare triple {2143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {2143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:25,762 INFO L273 TraceCheckUtils]: 11: Hoare triple {2150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {2143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:25,763 INFO L273 TraceCheckUtils]: 10: Hoare triple {2150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {2150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:52:25,764 INFO L273 TraceCheckUtils]: 9: Hoare triple {2157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:52:25,764 INFO L273 TraceCheckUtils]: 8: Hoare triple {2157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {2157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:52:25,765 INFO L273 TraceCheckUtils]: 7: Hoare triple {2164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:52:25,766 INFO L273 TraceCheckUtils]: 6: Hoare triple {2164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {2164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:52:25,767 INFO L273 TraceCheckUtils]: 5: Hoare triple {2171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:52:25,768 INFO L273 TraceCheckUtils]: 4: Hoare triple {2171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {2171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:52:25,769 INFO L273 TraceCheckUtils]: 3: Hoare triple {2178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {2171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:52:25,769 INFO L273 TraceCheckUtils]: 2: Hoare triple {2178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {2178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:52:25,771 INFO L273 TraceCheckUtils]: 1: Hoare triple {2185#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:52:25,772 INFO L273 TraceCheckUtils]: 0: Hoare triple {1999#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2185#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:52:25,775 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:25,794 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:52:25,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 41 [2018-12-18 17:52:25,794 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:52:25,794 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 25 [2018-12-18 17:52:25,795 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:52:25,795 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 29 states. [2018-12-18 17:52:25,851 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 49 edges. 49 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:25,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-12-18 17:52:25,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-12-18 17:52:25,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=274, Invalid=1532, Unknown=0, NotChecked=0, Total=1806 [2018-12-18 17:52:25,854 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 29 states. [2018-12-18 17:52:26,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:26,986 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2018-12-18 17:52:26,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-18 17:52:26,987 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 25 [2018-12-18 17:52:26,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:26,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-12-18 17:52:26,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 30 transitions. [2018-12-18 17:52:26,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-12-18 17:52:26,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 30 transitions. [2018-12-18 17:52:26,989 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 30 transitions. [2018-12-18 17:52:27,019 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:27,020 INFO L225 Difference]: With dead ends: 30 [2018-12-18 17:52:27,020 INFO L226 Difference]: Without dead ends: 29 [2018-12-18 17:52:27,022 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=274, Invalid=1532, Unknown=0, NotChecked=0, Total=1806 [2018-12-18 17:52:27,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-12-18 17:52:27,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2018-12-18 17:52:27,075 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:27,075 INFO L82 GeneralOperation]: Start isEquivalent. First operand 29 states. Second operand 28 states. [2018-12-18 17:52:27,075 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand 28 states. [2018-12-18 17:52:27,076 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 28 states. [2018-12-18 17:52:27,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:27,077 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2018-12-18 17:52:27,077 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2018-12-18 17:52:27,078 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:27,078 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:27,078 INFO L74 IsIncluded]: Start isIncluded. First operand 28 states. Second operand 29 states. [2018-12-18 17:52:27,078 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 29 states. [2018-12-18 17:52:27,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:27,079 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2018-12-18 17:52:27,079 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2018-12-18 17:52:27,079 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:27,079 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:27,080 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:27,080 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:27,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-12-18 17:52:27,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-12-18 17:52:27,080 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 25 [2018-12-18 17:52:27,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:27,081 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-12-18 17:52:27,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-12-18 17:52:27,081 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-12-18 17:52:27,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-18 17:52:27,081 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:27,082 INFO L402 BasicCegarLoop]: trace histogram [13, 12, 1, 1] [2018-12-18 17:52:27,082 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:27,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:27,082 INFO L82 PathProgramCache]: Analyzing trace with hash 367613688, now seen corresponding path program 12 times [2018-12-18 17:52:27,082 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:27,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:27,083 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:52:27,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:27,083 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:27,982 INFO L273 TraceCheckUtils]: 0: Hoare triple {2331#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2333#(and (or (<= main_i 0) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))) (or (< 12 main_n) (<= 0 main_i)))} is VALID [2018-12-18 17:52:27,984 INFO L273 TraceCheckUtils]: 1: Hoare triple {2333#(and (or (<= main_i 0) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))) (or (< 12 main_n) (<= 0 main_i)))} assume a[i] != 23;i := i + 4; {2334#(and (or (<= main_n 12) (<= main_i 4)) (or (< 12 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:27,985 INFO L273 TraceCheckUtils]: 2: Hoare triple {2334#(and (or (<= main_n 12) (<= main_i 4)) (or (< 12 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2334#(and (or (<= main_n 12) (<= main_i 4)) (or (< 12 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:27,986 INFO L273 TraceCheckUtils]: 3: Hoare triple {2334#(and (or (<= main_n 12) (<= main_i 4)) (or (< 12 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2335#(and (or (< 12 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:27,987 INFO L273 TraceCheckUtils]: 4: Hoare triple {2335#(and (or (< 12 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2335#(and (or (< 12 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:27,988 INFO L273 TraceCheckUtils]: 5: Hoare triple {2335#(and (or (< 12 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2336#(and (or (< 12 main_n) (<= 12 main_i)) (or (<= main_n 12) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:27,989 INFO L273 TraceCheckUtils]: 6: Hoare triple {2336#(and (or (< 12 main_n) (<= 12 main_i)) (or (<= main_n 12) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2336#(and (or (< 12 main_n) (<= 12 main_i)) (or (<= main_n 12) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:27,990 INFO L273 TraceCheckUtils]: 7: Hoare triple {2336#(and (or (< 12 main_n) (<= 12 main_i)) (or (<= main_n 12) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2337#(and (or (<= main_n 12) (<= main_i 16)) (or (< 12 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:27,991 INFO L273 TraceCheckUtils]: 8: Hoare triple {2337#(and (or (<= main_n 12) (<= main_i 16)) (or (< 12 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2337#(and (or (<= main_n 12) (<= main_i 16)) (or (< 12 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:27,992 INFO L273 TraceCheckUtils]: 9: Hoare triple {2337#(and (or (<= main_n 12) (<= main_i 16)) (or (< 12 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2338#(and (or (< 12 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 12)))} is VALID [2018-12-18 17:52:27,993 INFO L273 TraceCheckUtils]: 10: Hoare triple {2338#(and (or (< 12 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 12)))} assume i <= n * 4; {2338#(and (or (< 12 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 12)))} is VALID [2018-12-18 17:52:27,994 INFO L273 TraceCheckUtils]: 11: Hoare triple {2338#(and (or (< 12 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 12)))} assume a[i] != 23;i := i + 4; {2339#(and (or (<= main_n 12) (<= main_i 24)) (or (< 12 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:27,995 INFO L273 TraceCheckUtils]: 12: Hoare triple {2339#(and (or (<= main_n 12) (<= main_i 24)) (or (< 12 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2339#(and (or (<= main_n 12) (<= main_i 24)) (or (< 12 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:27,996 INFO L273 TraceCheckUtils]: 13: Hoare triple {2339#(and (or (<= main_n 12) (<= main_i 24)) (or (< 12 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2340#(and (or (<= main_n 12) (<= main_i 28)) (or (< 12 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,013 INFO L273 TraceCheckUtils]: 14: Hoare triple {2340#(and (or (<= main_n 12) (<= main_i 28)) (or (< 12 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2340#(and (or (<= main_n 12) (<= main_i 28)) (or (< 12 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,014 INFO L273 TraceCheckUtils]: 15: Hoare triple {2340#(and (or (<= main_n 12) (<= main_i 28)) (or (< 12 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2341#(and (or (<= main_i 32) (<= main_n 12)) (or (< 12 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,015 INFO L273 TraceCheckUtils]: 16: Hoare triple {2341#(and (or (<= main_i 32) (<= main_n 12)) (or (< 12 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2341#(and (or (<= main_i 32) (<= main_n 12)) (or (< 12 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,015 INFO L273 TraceCheckUtils]: 17: Hoare triple {2341#(and (or (<= main_i 32) (<= main_n 12)) (or (< 12 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2342#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 12)) (or (< 12 main_n) (<= 36 main_i)))} is VALID [2018-12-18 17:52:28,016 INFO L273 TraceCheckUtils]: 18: Hoare triple {2342#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 12)) (or (< 12 main_n) (<= 36 main_i)))} assume i <= n * 4; {2342#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 12)) (or (< 12 main_n) (<= 36 main_i)))} is VALID [2018-12-18 17:52:28,033 INFO L273 TraceCheckUtils]: 19: Hoare triple {2342#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 12)) (or (< 12 main_n) (<= 36 main_i)))} assume a[i] != 23;i := i + 4; {2343#(and (or (< 12 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,033 INFO L273 TraceCheckUtils]: 20: Hoare triple {2343#(and (or (< 12 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2343#(and (or (< 12 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,034 INFO L273 TraceCheckUtils]: 21: Hoare triple {2343#(and (or (< 12 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2344#(and (or (< 12 main_n) (<= 44 main_i)) (or (<= main_n 12) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,035 INFO L273 TraceCheckUtils]: 22: Hoare triple {2344#(and (or (< 12 main_n) (<= 44 main_i)) (or (<= main_n 12) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2344#(and (or (< 12 main_n) (<= 44 main_i)) (or (<= main_n 12) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,035 INFO L273 TraceCheckUtils]: 23: Hoare triple {2344#(and (or (< 12 main_n) (<= 44 main_i)) (or (<= main_n 12) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2345#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 12) (<= main_i 48)) (or (< 12 main_n) (<= (* 4 main_n) main_i)))))} is VALID [2018-12-18 17:52:28,036 INFO L273 TraceCheckUtils]: 24: Hoare triple {2345#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 12) (<= main_i 48)) (or (< 12 main_n) (<= (* 4 main_n) main_i)))))} assume i <= n * 4; {2346#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 12 main_n) (<= main_i 48))))} is VALID [2018-12-18 17:52:28,037 INFO L273 TraceCheckUtils]: 25: Hoare triple {2346#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 12 main_n) (<= main_i 48))))} assume a[i] != 23;i := i + 4; {2347#(and (<= main_i 52) (<= 13 main_n))} is VALID [2018-12-18 17:52:28,038 INFO L273 TraceCheckUtils]: 26: Hoare triple {2347#(and (<= main_i 52) (<= 13 main_n))} assume !(i <= n * 4); {2332#false} is VALID [2018-12-18 17:52:28,042 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:28,043 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:28,043 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:52:28,043 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:52:28,043 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:52:28,043 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:28,043 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:52:28,051 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-18 17:52:28,051 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-18 17:52:28,088 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-18 17:52:28,088 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:52:28,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:28,096 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:52:28,104 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:52:28,106 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:28,116 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:28,116 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:52:28,118 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:28,118 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_16]. (and (= main_a (store v_main_a_16 (* 4 main_n) 23)) (= main_i 0)) [2018-12-18 17:52:28,118 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:52:28,558 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:52:28,559 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:28,565 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:28,566 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:52:28,568 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:28,568 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 52) (not (= 23 (select main_a 48))) (<= 48 .cse0) (= 23 (select main_a .cse0)))) [2018-12-18 17:52:28,568 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 52) (<= 48 .cse0) (not (= 48 .cse0)))) [2018-12-18 17:52:28,588 INFO L273 TraceCheckUtils]: 0: Hoare triple {2331#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2351#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,588 INFO L273 TraceCheckUtils]: 1: Hoare triple {2351#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2355#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:28,589 INFO L273 TraceCheckUtils]: 2: Hoare triple {2355#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {2355#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:28,589 INFO L273 TraceCheckUtils]: 3: Hoare triple {2355#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {2362#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,590 INFO L273 TraceCheckUtils]: 4: Hoare triple {2362#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2362#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,591 INFO L273 TraceCheckUtils]: 5: Hoare triple {2362#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:28,591 INFO L273 TraceCheckUtils]: 6: Hoare triple {2369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {2369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:28,592 INFO L273 TraceCheckUtils]: 7: Hoare triple {2369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {2376#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,593 INFO L273 TraceCheckUtils]: 8: Hoare triple {2376#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2376#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,594 INFO L273 TraceCheckUtils]: 9: Hoare triple {2376#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2383#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,594 INFO L273 TraceCheckUtils]: 10: Hoare triple {2383#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2383#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,595 INFO L273 TraceCheckUtils]: 11: Hoare triple {2383#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2390#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,596 INFO L273 TraceCheckUtils]: 12: Hoare triple {2390#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2390#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,597 INFO L273 TraceCheckUtils]: 13: Hoare triple {2390#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2397#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,597 INFO L273 TraceCheckUtils]: 14: Hoare triple {2397#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2397#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,598 INFO L273 TraceCheckUtils]: 15: Hoare triple {2397#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2404#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,599 INFO L273 TraceCheckUtils]: 16: Hoare triple {2404#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2404#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,599 INFO L273 TraceCheckUtils]: 17: Hoare triple {2404#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2411#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,600 INFO L273 TraceCheckUtils]: 18: Hoare triple {2411#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2411#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,601 INFO L273 TraceCheckUtils]: 19: Hoare triple {2411#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2418#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,602 INFO L273 TraceCheckUtils]: 20: Hoare triple {2418#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2418#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,603 INFO L273 TraceCheckUtils]: 21: Hoare triple {2418#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2425#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,603 INFO L273 TraceCheckUtils]: 22: Hoare triple {2425#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2425#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,604 INFO L273 TraceCheckUtils]: 23: Hoare triple {2425#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2432#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,605 INFO L273 TraceCheckUtils]: 24: Hoare triple {2432#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2436#(and (= main_i 48) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:28,606 INFO L273 TraceCheckUtils]: 25: Hoare triple {2436#(and (= main_i 48) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2347#(and (<= main_i 52) (<= 13 main_n))} is VALID [2018-12-18 17:52:28,606 INFO L273 TraceCheckUtils]: 26: Hoare triple {2347#(and (<= main_i 52) (<= 13 main_n))} assume !(i <= n * 4); {2332#false} is VALID [2018-12-18 17:52:28,609 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:28,610 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:52:29,337 INFO L273 TraceCheckUtils]: 26: Hoare triple {2443#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {2332#false} is VALID [2018-12-18 17:52:29,338 INFO L273 TraceCheckUtils]: 25: Hoare triple {2447#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {2443#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:52:29,339 INFO L273 TraceCheckUtils]: 24: Hoare triple {2451#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {2447#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:29,340 INFO L273 TraceCheckUtils]: 23: Hoare triple {2455#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {2451#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:29,341 INFO L273 TraceCheckUtils]: 22: Hoare triple {2455#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {2455#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:29,342 INFO L273 TraceCheckUtils]: 21: Hoare triple {2462#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {2455#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:29,342 INFO L273 TraceCheckUtils]: 20: Hoare triple {2462#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {2462#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:29,344 INFO L273 TraceCheckUtils]: 19: Hoare triple {2469#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {2462#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:29,344 INFO L273 TraceCheckUtils]: 18: Hoare triple {2469#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {2469#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:29,345 INFO L273 TraceCheckUtils]: 17: Hoare triple {2476#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {2469#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:29,346 INFO L273 TraceCheckUtils]: 16: Hoare triple {2476#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {2476#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:29,347 INFO L273 TraceCheckUtils]: 15: Hoare triple {2483#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2476#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:29,348 INFO L273 TraceCheckUtils]: 14: Hoare triple {2483#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {2483#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:29,349 INFO L273 TraceCheckUtils]: 13: Hoare triple {2490#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {2483#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:29,349 INFO L273 TraceCheckUtils]: 12: Hoare triple {2490#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {2490#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:52:29,350 INFO L273 TraceCheckUtils]: 11: Hoare triple {2497#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2490#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:52:29,351 INFO L273 TraceCheckUtils]: 10: Hoare triple {2497#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {2497#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:52:29,352 INFO L273 TraceCheckUtils]: 9: Hoare triple {2504#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2497#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:52:29,353 INFO L273 TraceCheckUtils]: 8: Hoare triple {2504#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {2504#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:52:29,354 INFO L273 TraceCheckUtils]: 7: Hoare triple {2511#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2504#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:52:29,354 INFO L273 TraceCheckUtils]: 6: Hoare triple {2511#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {2511#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:52:29,355 INFO L273 TraceCheckUtils]: 5: Hoare triple {2518#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {2511#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:52:29,356 INFO L273 TraceCheckUtils]: 4: Hoare triple {2518#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {2518#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:52:29,357 INFO L273 TraceCheckUtils]: 3: Hoare triple {2525#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2518#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:52:29,358 INFO L273 TraceCheckUtils]: 2: Hoare triple {2525#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {2525#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:52:29,359 INFO L273 TraceCheckUtils]: 1: Hoare triple {2532#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2525#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:52:29,360 INFO L273 TraceCheckUtils]: 0: Hoare triple {2331#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2532#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:52:29,364 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:29,382 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:52:29,383 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 44 [2018-12-18 17:52:29,383 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:52:29,383 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 27 [2018-12-18 17:52:29,383 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:52:29,383 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 31 states. [2018-12-18 17:52:29,445 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:29,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-12-18 17:52:29,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-12-18 17:52:29,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=1762, Unknown=0, NotChecked=0, Total=2070 [2018-12-18 17:52:29,447 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 31 states. [2018-12-18 17:52:30,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:30,777 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2018-12-18 17:52:30,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-12-18 17:52:30,777 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 27 [2018-12-18 17:52:30,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:30,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-12-18 17:52:30,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 32 transitions. [2018-12-18 17:52:30,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-12-18 17:52:30,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 32 transitions. [2018-12-18 17:52:30,780 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 32 transitions. [2018-12-18 17:52:30,811 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:30,812 INFO L225 Difference]: With dead ends: 32 [2018-12-18 17:52:30,813 INFO L226 Difference]: Without dead ends: 31 [2018-12-18 17:52:30,814 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=308, Invalid=1762, Unknown=0, NotChecked=0, Total=2070 [2018-12-18 17:52:30,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-12-18 17:52:30,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2018-12-18 17:52:30,851 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:30,851 INFO L82 GeneralOperation]: Start isEquivalent. First operand 31 states. Second operand 30 states. [2018-12-18 17:52:30,851 INFO L74 IsIncluded]: Start isIncluded. First operand 31 states. Second operand 30 states. [2018-12-18 17:52:30,851 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 30 states. [2018-12-18 17:52:30,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:30,852 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2018-12-18 17:52:30,852 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-12-18 17:52:30,853 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:30,853 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:30,853 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 31 states. [2018-12-18 17:52:30,853 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 31 states. [2018-12-18 17:52:30,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:30,854 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2018-12-18 17:52:30,854 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-12-18 17:52:30,854 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:30,854 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:30,854 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:30,854 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:30,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-12-18 17:52:30,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2018-12-18 17:52:30,855 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 27 [2018-12-18 17:52:30,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:30,855 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2018-12-18 17:52:30,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-12-18 17:52:30,855 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2018-12-18 17:52:30,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-18 17:52:30,856 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:30,856 INFO L402 BasicCegarLoop]: trace histogram [14, 13, 1, 1] [2018-12-18 17:52:30,856 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:30,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:30,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1089436986, now seen corresponding path program 13 times [2018-12-18 17:52:30,857 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:30,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:30,858 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:52:30,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:30,858 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:31,288 WARN L181 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-12-18 17:52:32,231 INFO L273 TraceCheckUtils]: 0: Hoare triple {2688#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2690#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)) (or (<= main_n 13) (<= main_i 0)))} is VALID [2018-12-18 17:52:32,232 INFO L273 TraceCheckUtils]: 1: Hoare triple {2690#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)) (or (<= main_n 13) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {2691#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 13 main_n)) (or (<= main_n 13) (<= main_i 4)))} is VALID [2018-12-18 17:52:32,233 INFO L273 TraceCheckUtils]: 2: Hoare triple {2691#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 13 main_n)) (or (<= main_n 13) (<= main_i 4)))} assume i <= n * 4; {2691#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 13 main_n)) (or (<= main_n 13) (<= main_i 4)))} is VALID [2018-12-18 17:52:32,234 INFO L273 TraceCheckUtils]: 3: Hoare triple {2691#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 13 main_n)) (or (<= main_n 13) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {2692#(and (or (<= main_i 8) (<= main_n 13)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2018-12-18 17:52:32,235 INFO L273 TraceCheckUtils]: 4: Hoare triple {2692#(and (or (<= main_i 8) (<= main_n 13)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2692#(and (or (<= main_i 8) (<= main_n 13)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2018-12-18 17:52:32,236 INFO L273 TraceCheckUtils]: 5: Hoare triple {2692#(and (or (<= main_i 8) (<= main_n 13)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2693#(and (or (<= main_n 13) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2018-12-18 17:52:32,237 INFO L273 TraceCheckUtils]: 6: Hoare triple {2693#(and (or (<= main_n 13) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2693#(and (or (<= main_n 13) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2018-12-18 17:52:32,238 INFO L273 TraceCheckUtils]: 7: Hoare triple {2693#(and (or (<= main_n 13) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2694#(and (or (<= main_n 13) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2018-12-18 17:52:32,239 INFO L273 TraceCheckUtils]: 8: Hoare triple {2694#(and (or (<= main_n 13) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2694#(and (or (<= main_n 13) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2018-12-18 17:52:32,240 INFO L273 TraceCheckUtils]: 9: Hoare triple {2694#(and (or (<= main_n 13) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2695#(and (or (< 13 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 20)))} is VALID [2018-12-18 17:52:32,241 INFO L273 TraceCheckUtils]: 10: Hoare triple {2695#(and (or (< 13 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 20)))} assume i <= n * 4; {2695#(and (or (< 13 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 20)))} is VALID [2018-12-18 17:52:32,242 INFO L273 TraceCheckUtils]: 11: Hoare triple {2695#(and (or (< 13 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {2696#(and (or (<= main_n 13) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2018-12-18 17:52:32,243 INFO L273 TraceCheckUtils]: 12: Hoare triple {2696#(and (or (<= main_n 13) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2696#(and (or (<= main_n 13) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2018-12-18 17:52:32,244 INFO L273 TraceCheckUtils]: 13: Hoare triple {2696#(and (or (<= main_n 13) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2697#(and (or (<= main_n 13) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2018-12-18 17:52:32,245 INFO L273 TraceCheckUtils]: 14: Hoare triple {2697#(and (or (<= main_n 13) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2697#(and (or (<= main_n 13) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2018-12-18 17:52:32,246 INFO L273 TraceCheckUtils]: 15: Hoare triple {2697#(and (or (<= main_n 13) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2698#(and (or (<= main_i 32) (<= main_n 13)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2018-12-18 17:52:32,247 INFO L273 TraceCheckUtils]: 16: Hoare triple {2698#(and (or (<= main_i 32) (<= main_n 13)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2698#(and (or (<= main_i 32) (<= main_n 13)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2018-12-18 17:52:32,248 INFO L273 TraceCheckUtils]: 17: Hoare triple {2698#(and (or (<= main_i 32) (<= main_n 13)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2699#(and (or (<= main_i 36) (<= main_n 13)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 13 main_n)))} is VALID [2018-12-18 17:52:32,249 INFO L273 TraceCheckUtils]: 18: Hoare triple {2699#(and (or (<= main_i 36) (<= main_n 13)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 13 main_n)))} assume i <= n * 4; {2699#(and (or (<= main_i 36) (<= main_n 13)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 13 main_n)))} is VALID [2018-12-18 17:52:32,250 INFO L273 TraceCheckUtils]: 19: Hoare triple {2699#(and (or (<= main_i 36) (<= main_n 13)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2700#(and (or (<= main_i 40) (<= main_n 13)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2018-12-18 17:52:32,250 INFO L273 TraceCheckUtils]: 20: Hoare triple {2700#(and (or (<= main_i 40) (<= main_n 13)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2700#(and (or (<= main_i 40) (<= main_n 13)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2018-12-18 17:52:32,251 INFO L273 TraceCheckUtils]: 21: Hoare triple {2700#(and (or (<= main_i 40) (<= main_n 13)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2701#(and (or (< 13 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 44)))} is VALID [2018-12-18 17:52:32,252 INFO L273 TraceCheckUtils]: 22: Hoare triple {2701#(and (or (< 13 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 44)))} assume i <= n * 4; {2701#(and (or (< 13 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 44)))} is VALID [2018-12-18 17:52:32,253 INFO L273 TraceCheckUtils]: 23: Hoare triple {2701#(and (or (< 13 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 13) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {2702#(and (or (<= main_n 13) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2018-12-18 17:52:32,254 INFO L273 TraceCheckUtils]: 24: Hoare triple {2702#(and (or (<= main_n 13) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume i <= n * 4; {2702#(and (or (<= main_n 13) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} is VALID [2018-12-18 17:52:32,255 INFO L273 TraceCheckUtils]: 25: Hoare triple {2702#(and (or (<= main_n 13) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 13 main_n)))} assume a[i] != 23;i := i + 4; {2703#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 13 main_n)) (or (<= main_i 52) (<= main_n 13)))} is VALID [2018-12-18 17:52:32,256 INFO L273 TraceCheckUtils]: 26: Hoare triple {2703#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 13 main_n)) (or (<= main_i 52) (<= main_n 13)))} assume i <= n * 4; {2704#(and (<= main_i 52) (or (< 13 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2018-12-18 17:52:32,257 INFO L273 TraceCheckUtils]: 27: Hoare triple {2704#(and (<= main_i 52) (or (< 13 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {2705#(and (<= main_i 56) (< 13 main_n))} is VALID [2018-12-18 17:52:32,258 INFO L273 TraceCheckUtils]: 28: Hoare triple {2705#(and (<= main_i 56) (< 13 main_n))} assume !(i <= n * 4); {2689#false} is VALID [2018-12-18 17:52:32,266 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:32,267 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:32,267 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:52:32,267 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:52:32,267 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:52:32,267 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:32,267 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:52:32,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:52:32,288 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-18 17:52:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:32,304 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:52:32,323 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:52:32,325 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:32,331 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:32,331 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:52:32,334 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:32,334 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_17]. (and (= main_i 0) (= main_a (store v_main_a_17 (* 4 main_n) 23))) [2018-12-18 17:52:32,334 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:52:32,871 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:52:32,872 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:32,879 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:32,879 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:52:32,882 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:32,882 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 52) 23)) (<= main_i 56) (= 23 (select main_a .cse0)) (<= 52 .cse0))) [2018-12-18 17:52:32,882 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 52 .cse0)) (<= main_i 56) (<= 52 .cse0))) [2018-12-18 17:52:32,902 INFO L273 TraceCheckUtils]: 0: Hoare triple {2688#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2709#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:32,902 INFO L273 TraceCheckUtils]: 1: Hoare triple {2709#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2713#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:32,903 INFO L273 TraceCheckUtils]: 2: Hoare triple {2713#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {2713#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:32,903 INFO L273 TraceCheckUtils]: 3: Hoare triple {2713#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {2720#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:32,904 INFO L273 TraceCheckUtils]: 4: Hoare triple {2720#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2720#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:32,905 INFO L273 TraceCheckUtils]: 5: Hoare triple {2720#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2727#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:32,905 INFO L273 TraceCheckUtils]: 6: Hoare triple {2727#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {2727#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:32,906 INFO L273 TraceCheckUtils]: 7: Hoare triple {2727#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {2734#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:32,907 INFO L273 TraceCheckUtils]: 8: Hoare triple {2734#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2734#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:32,908 INFO L273 TraceCheckUtils]: 9: Hoare triple {2734#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2741#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:32,908 INFO L273 TraceCheckUtils]: 10: Hoare triple {2741#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2741#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:32,909 INFO L273 TraceCheckUtils]: 11: Hoare triple {2741#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2748#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:32,910 INFO L273 TraceCheckUtils]: 12: Hoare triple {2748#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2748#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:32,910 INFO L273 TraceCheckUtils]: 13: Hoare triple {2748#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2755#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:32,911 INFO L273 TraceCheckUtils]: 14: Hoare triple {2755#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2755#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:32,912 INFO L273 TraceCheckUtils]: 15: Hoare triple {2755#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2762#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:32,913 INFO L273 TraceCheckUtils]: 16: Hoare triple {2762#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2762#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:32,913 INFO L273 TraceCheckUtils]: 17: Hoare triple {2762#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2769#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:32,914 INFO L273 TraceCheckUtils]: 18: Hoare triple {2769#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2769#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:32,915 INFO L273 TraceCheckUtils]: 19: Hoare triple {2769#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2776#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:32,916 INFO L273 TraceCheckUtils]: 20: Hoare triple {2776#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2776#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:32,917 INFO L273 TraceCheckUtils]: 21: Hoare triple {2776#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2783#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:32,917 INFO L273 TraceCheckUtils]: 22: Hoare triple {2783#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2783#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:32,918 INFO L273 TraceCheckUtils]: 23: Hoare triple {2783#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2790#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:32,919 INFO L273 TraceCheckUtils]: 24: Hoare triple {2790#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2790#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:32,920 INFO L273 TraceCheckUtils]: 25: Hoare triple {2790#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2797#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:32,920 INFO L273 TraceCheckUtils]: 26: Hoare triple {2797#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {2801#(and (= main_i 52) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:32,921 INFO L273 TraceCheckUtils]: 27: Hoare triple {2801#(and (= main_i 52) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {2705#(and (<= main_i 56) (< 13 main_n))} is VALID [2018-12-18 17:52:32,922 INFO L273 TraceCheckUtils]: 28: Hoare triple {2705#(and (<= main_i 56) (< 13 main_n))} assume !(i <= n * 4); {2689#false} is VALID [2018-12-18 17:52:32,925 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:32,925 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:52:33,860 INFO L273 TraceCheckUtils]: 28: Hoare triple {2808#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {2689#false} is VALID [2018-12-18 17:52:33,861 INFO L273 TraceCheckUtils]: 27: Hoare triple {2812#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {2808#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:52:33,862 INFO L273 TraceCheckUtils]: 26: Hoare triple {2816#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {2812#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:33,863 INFO L273 TraceCheckUtils]: 25: Hoare triple {2820#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {2816#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:33,864 INFO L273 TraceCheckUtils]: 24: Hoare triple {2820#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {2820#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:33,865 INFO L273 TraceCheckUtils]: 23: Hoare triple {2827#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {2820#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:33,865 INFO L273 TraceCheckUtils]: 22: Hoare triple {2827#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {2827#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:33,866 INFO L273 TraceCheckUtils]: 21: Hoare triple {2834#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {2827#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:33,867 INFO L273 TraceCheckUtils]: 20: Hoare triple {2834#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {2834#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:33,868 INFO L273 TraceCheckUtils]: 19: Hoare triple {2841#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {2834#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:33,869 INFO L273 TraceCheckUtils]: 18: Hoare triple {2841#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {2841#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:33,870 INFO L273 TraceCheckUtils]: 17: Hoare triple {2848#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2841#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:33,871 INFO L273 TraceCheckUtils]: 16: Hoare triple {2848#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {2848#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:33,872 INFO L273 TraceCheckUtils]: 15: Hoare triple {2855#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {2848#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:33,872 INFO L273 TraceCheckUtils]: 14: Hoare triple {2855#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {2855#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:52:33,873 INFO L273 TraceCheckUtils]: 13: Hoare triple {2862#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2855#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:52:33,874 INFO L273 TraceCheckUtils]: 12: Hoare triple {2862#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {2862#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:52:33,875 INFO L273 TraceCheckUtils]: 11: Hoare triple {2869#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2862#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:52:33,876 INFO L273 TraceCheckUtils]: 10: Hoare triple {2869#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {2869#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:52:33,877 INFO L273 TraceCheckUtils]: 9: Hoare triple {2876#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2869#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:52:33,877 INFO L273 TraceCheckUtils]: 8: Hoare triple {2876#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {2876#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:52:33,878 INFO L273 TraceCheckUtils]: 7: Hoare triple {2883#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {2876#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:52:33,879 INFO L273 TraceCheckUtils]: 6: Hoare triple {2883#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {2883#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:52:33,880 INFO L273 TraceCheckUtils]: 5: Hoare triple {2890#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2883#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:52:33,881 INFO L273 TraceCheckUtils]: 4: Hoare triple {2890#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {2890#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:52:33,882 INFO L273 TraceCheckUtils]: 3: Hoare triple {2897#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {2890#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:52:33,882 INFO L273 TraceCheckUtils]: 2: Hoare triple {2897#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {2897#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:52:33,883 INFO L273 TraceCheckUtils]: 1: Hoare triple {2904#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {2897#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:52:33,884 INFO L273 TraceCheckUtils]: 0: Hoare triple {2688#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {2904#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:52:33,889 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:33,908 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:52:33,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 47 [2018-12-18 17:52:33,909 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:52:33,909 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 29 [2018-12-18 17:52:33,909 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:52:33,910 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 33 states. [2018-12-18 17:52:33,977 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 57 edges. 57 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:33,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-12-18 17:52:33,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-12-18 17:52:33,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=344, Invalid=2008, Unknown=0, NotChecked=0, Total=2352 [2018-12-18 17:52:33,980 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 33 states. [2018-12-18 17:52:35,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:35,629 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-12-18 17:52:35,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-18 17:52:35,629 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 29 [2018-12-18 17:52:35,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:35,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-18 17:52:35,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 34 transitions. [2018-12-18 17:52:35,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-18 17:52:35,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 34 transitions. [2018-12-18 17:52:35,631 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 18 states and 34 transitions. [2018-12-18 17:52:35,665 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:35,666 INFO L225 Difference]: With dead ends: 34 [2018-12-18 17:52:35,666 INFO L226 Difference]: Without dead ends: 33 [2018-12-18 17:52:35,668 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=344, Invalid=2008, Unknown=0, NotChecked=0, Total=2352 [2018-12-18 17:52:35,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-12-18 17:52:35,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2018-12-18 17:52:35,699 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:35,699 INFO L82 GeneralOperation]: Start isEquivalent. First operand 33 states. Second operand 32 states. [2018-12-18 17:52:35,699 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand 32 states. [2018-12-18 17:52:35,700 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 32 states. [2018-12-18 17:52:35,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:35,701 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2018-12-18 17:52:35,701 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2018-12-18 17:52:35,701 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:35,701 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:35,701 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand 33 states. [2018-12-18 17:52:35,701 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 33 states. [2018-12-18 17:52:35,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:35,702 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2018-12-18 17:52:35,702 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2018-12-18 17:52:35,702 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:35,703 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:35,703 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:35,703 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:35,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-18 17:52:35,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-12-18 17:52:35,703 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 29 [2018-12-18 17:52:35,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:35,704 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-12-18 17:52:35,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-12-18 17:52:35,704 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-12-18 17:52:35,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-18 17:52:35,704 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:35,704 INFO L402 BasicCegarLoop]: trace histogram [15, 14, 1, 1] [2018-12-18 17:52:35,705 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:35,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:35,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1023075588, now seen corresponding path program 14 times [2018-12-18 17:52:35,705 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:35,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:35,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:52:35,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:35,706 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:36,713 WARN L181 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 7 [2018-12-18 17:52:36,716 INFO L273 TraceCheckUtils]: 0: Hoare triple {3070#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3072#(and (or (<= 0 main_i) (< 14 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 0) (<= main_n 14)))} is VALID [2018-12-18 17:52:36,726 INFO L273 TraceCheckUtils]: 1: Hoare triple {3072#(and (or (<= 0 main_i) (< 14 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 0) (<= main_n 14)))} assume a[i] != 23;i := i + 4; {3073#(and (or (<= main_n 14) (<= main_i 4)) (or (< 14 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:36,739 INFO L273 TraceCheckUtils]: 2: Hoare triple {3073#(and (or (<= main_n 14) (<= main_i 4)) (or (< 14 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3073#(and (or (<= main_n 14) (<= main_i 4)) (or (< 14 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:36,740 INFO L273 TraceCheckUtils]: 3: Hoare triple {3073#(and (or (<= main_n 14) (<= main_i 4)) (or (< 14 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3074#(and (or (< 14 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:36,741 INFO L273 TraceCheckUtils]: 4: Hoare triple {3074#(and (or (< 14 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3074#(and (or (< 14 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:36,741 INFO L273 TraceCheckUtils]: 5: Hoare triple {3074#(and (or (< 14 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3075#(and (or (< 14 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 14) (<= main_i 12)))} is VALID [2018-12-18 17:52:36,743 INFO L273 TraceCheckUtils]: 6: Hoare triple {3075#(and (or (< 14 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 14) (<= main_i 12)))} assume i <= n * 4; {3075#(and (or (< 14 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 14) (<= main_i 12)))} is VALID [2018-12-18 17:52:36,744 INFO L273 TraceCheckUtils]: 7: Hoare triple {3075#(and (or (< 14 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 14) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {3076#(and (or (<= main_n 14) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 14 main_n) (<= 16 main_i)))} is VALID [2018-12-18 17:52:36,745 INFO L273 TraceCheckUtils]: 8: Hoare triple {3076#(and (or (<= main_n 14) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 14 main_n) (<= 16 main_i)))} assume i <= n * 4; {3076#(and (or (<= main_n 14) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 14 main_n) (<= 16 main_i)))} is VALID [2018-12-18 17:52:36,746 INFO L273 TraceCheckUtils]: 9: Hoare triple {3076#(and (or (<= main_n 14) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 14 main_n) (<= 16 main_i)))} assume a[i] != 23;i := i + 4; {3077#(and (or (< 14 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:36,747 INFO L273 TraceCheckUtils]: 10: Hoare triple {3077#(and (or (< 14 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3077#(and (or (< 14 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:36,748 INFO L273 TraceCheckUtils]: 11: Hoare triple {3077#(and (or (< 14 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3078#(and (or (<= main_n 14) (<= main_i 24)) (or (< 14 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:36,749 INFO L273 TraceCheckUtils]: 12: Hoare triple {3078#(and (or (<= main_n 14) (<= main_i 24)) (or (< 14 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3078#(and (or (<= main_n 14) (<= main_i 24)) (or (< 14 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:36,750 INFO L273 TraceCheckUtils]: 13: Hoare triple {3078#(and (or (<= main_n 14) (<= main_i 24)) (or (< 14 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3079#(and (or (<= 28 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:36,751 INFO L273 TraceCheckUtils]: 14: Hoare triple {3079#(and (or (<= 28 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3079#(and (or (<= 28 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:36,752 INFO L273 TraceCheckUtils]: 15: Hoare triple {3079#(and (or (<= 28 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3080#(and (or (<= 32 main_i) (< 14 main_n)) (or (<= main_i 32) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:36,753 INFO L273 TraceCheckUtils]: 16: Hoare triple {3080#(and (or (<= 32 main_i) (< 14 main_n)) (or (<= main_i 32) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3080#(and (or (<= 32 main_i) (< 14 main_n)) (or (<= main_i 32) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:36,755 INFO L273 TraceCheckUtils]: 17: Hoare triple {3080#(and (or (<= 32 main_i) (< 14 main_n)) (or (<= main_i 32) (<= main_n 14)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3081#(and (or (<= main_i 36) (<= main_n 14)) (or (< 14 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:36,757 INFO L273 TraceCheckUtils]: 18: Hoare triple {3081#(and (or (<= main_i 36) (<= main_n 14)) (or (< 14 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3081#(and (or (<= main_i 36) (<= main_n 14)) (or (< 14 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:36,758 INFO L273 TraceCheckUtils]: 19: Hoare triple {3081#(and (or (<= main_i 36) (<= main_n 14)) (or (< 14 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3082#(and (or (<= 40 main_i) (< 14 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 14)))} is VALID [2018-12-18 17:52:36,759 INFO L273 TraceCheckUtils]: 20: Hoare triple {3082#(and (or (<= 40 main_i) (< 14 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 14)))} assume i <= n * 4; {3082#(and (or (<= 40 main_i) (< 14 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 14)))} is VALID [2018-12-18 17:52:36,760 INFO L273 TraceCheckUtils]: 21: Hoare triple {3082#(and (or (<= 40 main_i) (< 14 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 14)))} assume a[i] != 23;i := i + 4; {3083#(and (or (<= 44 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:36,761 INFO L273 TraceCheckUtils]: 22: Hoare triple {3083#(and (or (<= 44 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3083#(and (or (<= 44 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:36,761 INFO L273 TraceCheckUtils]: 23: Hoare triple {3083#(and (or (<= 44 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3084#(and (or (<= 48 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:36,763 INFO L273 TraceCheckUtils]: 24: Hoare triple {3084#(and (or (<= 48 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3084#(and (or (<= 48 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:36,764 INFO L273 TraceCheckUtils]: 25: Hoare triple {3084#(and (or (<= 48 main_i) (< 14 main_n)) (or (<= main_n 14) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3085#(and (or (<= main_i 52) (<= main_n 14)) (or (< 14 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:36,765 INFO L273 TraceCheckUtils]: 26: Hoare triple {3085#(and (or (<= main_i 52) (<= main_n 14)) (or (< 14 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3085#(and (or (<= main_i 52) (<= main_n 14)) (or (< 14 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:36,766 INFO L273 TraceCheckUtils]: 27: Hoare triple {3085#(and (or (<= main_i 52) (<= main_n 14)) (or (< 14 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3086#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 14) (<= main_i 56)) (or (<= (* 4 main_n) main_i) (< 14 main_n)))))} is VALID [2018-12-18 17:52:36,768 INFO L273 TraceCheckUtils]: 28: Hoare triple {3086#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 14) (<= main_i 56)) (or (<= (* 4 main_n) main_i) (< 14 main_n)))))} assume i <= n * 4; {3087#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 14 main_n) (<= main_i 56))))} is VALID [2018-12-18 17:52:36,769 INFO L273 TraceCheckUtils]: 29: Hoare triple {3087#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 14 main_n) (<= main_i 56))))} assume a[i] != 23;i := i + 4; {3088#(and (<= main_i 60) (<= 15 main_n))} is VALID [2018-12-18 17:52:36,770 INFO L273 TraceCheckUtils]: 30: Hoare triple {3088#(and (<= main_i 60) (<= 15 main_n))} assume !(i <= n * 4); {3071#false} is VALID [2018-12-18 17:52:36,776 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:36,776 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:36,776 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:52:36,776 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:52:36,777 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:52:36,777 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:36,777 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:52:36,786 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-18 17:52:36,786 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-18 17:52:36,808 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2018-12-18 17:52:36,809 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:52:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:36,820 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:52:36,829 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:52:36,830 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:36,835 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:36,835 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:52:36,838 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:36,838 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_18]. (and (= main_i 0) (= (store v_main_a_18 (* 4 main_n) 23) main_a)) [2018-12-18 17:52:36,838 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:52:37,471 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:52:37,478 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:37,484 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:37,484 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:52:37,486 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:37,487 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 56 .cse0) (not (= (select main_a 56) 23)) (<= main_i 60) (= 23 (select main_a .cse0)))) [2018-12-18 17:52:37,487 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 56 .cse0) (<= main_i 60) (not (= 56 .cse0)))) [2018-12-18 17:52:37,508 INFO L273 TraceCheckUtils]: 0: Hoare triple {3070#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3092#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,509 INFO L273 TraceCheckUtils]: 1: Hoare triple {3092#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3096#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:37,509 INFO L273 TraceCheckUtils]: 2: Hoare triple {3096#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {3096#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:37,510 INFO L273 TraceCheckUtils]: 3: Hoare triple {3096#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {3103#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,511 INFO L273 TraceCheckUtils]: 4: Hoare triple {3103#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3103#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,512 INFO L273 TraceCheckUtils]: 5: Hoare triple {3103#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3110#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:37,512 INFO L273 TraceCheckUtils]: 6: Hoare triple {3110#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {3110#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:37,513 INFO L273 TraceCheckUtils]: 7: Hoare triple {3110#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {3117#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,514 INFO L273 TraceCheckUtils]: 8: Hoare triple {3117#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3117#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,514 INFO L273 TraceCheckUtils]: 9: Hoare triple {3117#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3124#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,515 INFO L273 TraceCheckUtils]: 10: Hoare triple {3124#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3124#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,516 INFO L273 TraceCheckUtils]: 11: Hoare triple {3124#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3131#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,517 INFO L273 TraceCheckUtils]: 12: Hoare triple {3131#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3131#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,517 INFO L273 TraceCheckUtils]: 13: Hoare triple {3131#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3138#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,518 INFO L273 TraceCheckUtils]: 14: Hoare triple {3138#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3138#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,519 INFO L273 TraceCheckUtils]: 15: Hoare triple {3138#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3145#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,519 INFO L273 TraceCheckUtils]: 16: Hoare triple {3145#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3145#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,520 INFO L273 TraceCheckUtils]: 17: Hoare triple {3145#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3152#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,521 INFO L273 TraceCheckUtils]: 18: Hoare triple {3152#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3152#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,522 INFO L273 TraceCheckUtils]: 19: Hoare triple {3152#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3159#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,522 INFO L273 TraceCheckUtils]: 20: Hoare triple {3159#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3159#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,523 INFO L273 TraceCheckUtils]: 21: Hoare triple {3159#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3166#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,524 INFO L273 TraceCheckUtils]: 22: Hoare triple {3166#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3166#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,525 INFO L273 TraceCheckUtils]: 23: Hoare triple {3166#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3173#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,525 INFO L273 TraceCheckUtils]: 24: Hoare triple {3173#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3173#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,526 INFO L273 TraceCheckUtils]: 25: Hoare triple {3173#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3180#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,527 INFO L273 TraceCheckUtils]: 26: Hoare triple {3180#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3180#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,528 INFO L273 TraceCheckUtils]: 27: Hoare triple {3180#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3187#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,528 INFO L273 TraceCheckUtils]: 28: Hoare triple {3187#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3191#(and (= main_i 56) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:37,529 INFO L273 TraceCheckUtils]: 29: Hoare triple {3191#(and (= main_i 56) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3088#(and (<= main_i 60) (<= 15 main_n))} is VALID [2018-12-18 17:52:37,530 INFO L273 TraceCheckUtils]: 30: Hoare triple {3088#(and (<= main_i 60) (<= 15 main_n))} assume !(i <= n * 4); {3071#false} is VALID [2018-12-18 17:52:37,533 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:37,533 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:52:38,740 WARN L181 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-12-18 17:52:38,863 INFO L273 TraceCheckUtils]: 30: Hoare triple {3198#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {3071#false} is VALID [2018-12-18 17:52:38,864 INFO L273 TraceCheckUtils]: 29: Hoare triple {3202#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {3198#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:52:38,865 INFO L273 TraceCheckUtils]: 28: Hoare triple {3206#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {3202#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:38,866 INFO L273 TraceCheckUtils]: 27: Hoare triple {3210#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {3206#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:38,867 INFO L273 TraceCheckUtils]: 26: Hoare triple {3210#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {3210#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:38,868 INFO L273 TraceCheckUtils]: 25: Hoare triple {3217#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {3210#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:38,868 INFO L273 TraceCheckUtils]: 24: Hoare triple {3217#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {3217#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:38,869 INFO L273 TraceCheckUtils]: 23: Hoare triple {3224#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {3217#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:38,870 INFO L273 TraceCheckUtils]: 22: Hoare triple {3224#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {3224#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:38,871 INFO L273 TraceCheckUtils]: 21: Hoare triple {3231#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {3224#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:38,872 INFO L273 TraceCheckUtils]: 20: Hoare triple {3231#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {3231#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:38,873 INFO L273 TraceCheckUtils]: 19: Hoare triple {3238#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3231#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:38,873 INFO L273 TraceCheckUtils]: 18: Hoare triple {3238#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {3238#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:38,875 INFO L273 TraceCheckUtils]: 17: Hoare triple {3245#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {3238#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:38,875 INFO L273 TraceCheckUtils]: 16: Hoare triple {3245#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {3245#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:52:38,876 INFO L273 TraceCheckUtils]: 15: Hoare triple {3252#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3245#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:52:38,877 INFO L273 TraceCheckUtils]: 14: Hoare triple {3252#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {3252#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:52:38,878 INFO L273 TraceCheckUtils]: 13: Hoare triple {3259#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3252#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:52:38,879 INFO L273 TraceCheckUtils]: 12: Hoare triple {3259#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {3259#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:52:38,880 INFO L273 TraceCheckUtils]: 11: Hoare triple {3266#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3259#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:52:38,880 INFO L273 TraceCheckUtils]: 10: Hoare triple {3266#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {3266#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:52:38,882 INFO L273 TraceCheckUtils]: 9: Hoare triple {3273#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {3266#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:52:38,882 INFO L273 TraceCheckUtils]: 8: Hoare triple {3273#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {3273#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:52:38,883 INFO L273 TraceCheckUtils]: 7: Hoare triple {3280#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3273#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:52:38,884 INFO L273 TraceCheckUtils]: 6: Hoare triple {3280#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {3280#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:52:38,885 INFO L273 TraceCheckUtils]: 5: Hoare triple {3287#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3280#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:52:38,886 INFO L273 TraceCheckUtils]: 4: Hoare triple {3287#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {3287#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:52:38,887 INFO L273 TraceCheckUtils]: 3: Hoare triple {3294#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {3287#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:52:38,887 INFO L273 TraceCheckUtils]: 2: Hoare triple {3294#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {3294#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:52:38,889 INFO L273 TraceCheckUtils]: 1: Hoare triple {3301#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3294#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:52:38,890 INFO L273 TraceCheckUtils]: 0: Hoare triple {3070#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3301#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:52:38,895 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:38,915 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:52:38,915 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 50 [2018-12-18 17:52:38,915 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:52:38,915 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 31 [2018-12-18 17:52:38,916 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:52:38,916 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 35 states. [2018-12-18 17:52:38,988 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:38,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-12-18 17:52:38,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-12-18 17:52:38,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=382, Invalid=2270, Unknown=0, NotChecked=0, Total=2652 [2018-12-18 17:52:38,990 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 35 states. [2018-12-18 17:52:40,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:40,784 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2018-12-18 17:52:40,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-12-18 17:52:40,784 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 31 [2018-12-18 17:52:40,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:40,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-12-18 17:52:40,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 36 transitions. [2018-12-18 17:52:40,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-12-18 17:52:40,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 36 transitions. [2018-12-18 17:52:40,786 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 19 states and 36 transitions. [2018-12-18 17:52:40,825 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:40,826 INFO L225 Difference]: With dead ends: 36 [2018-12-18 17:52:40,826 INFO L226 Difference]: Without dead ends: 35 [2018-12-18 17:52:40,827 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=382, Invalid=2270, Unknown=0, NotChecked=0, Total=2652 [2018-12-18 17:52:40,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-12-18 17:52:40,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2018-12-18 17:52:40,876 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:40,876 INFO L82 GeneralOperation]: Start isEquivalent. First operand 35 states. Second operand 34 states. [2018-12-18 17:52:40,876 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 34 states. [2018-12-18 17:52:40,876 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 34 states. [2018-12-18 17:52:40,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:40,877 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-12-18 17:52:40,877 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-12-18 17:52:40,878 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:40,878 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:40,878 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 35 states. [2018-12-18 17:52:40,878 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 35 states. [2018-12-18 17:52:40,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:40,879 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-12-18 17:52:40,879 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-12-18 17:52:40,879 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:40,879 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:40,879 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:40,879 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:40,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-18 17:52:40,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-12-18 17:52:40,880 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 31 [2018-12-18 17:52:40,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:40,880 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-12-18 17:52:40,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-12-18 17:52:40,880 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-12-18 17:52:40,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-18 17:52:40,881 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:40,881 INFO L402 BasicCegarLoop]: trace histogram [16, 15, 1, 1] [2018-12-18 17:52:40,881 INFO L423 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:40,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:40,882 INFO L82 PathProgramCache]: Analyzing trace with hash 371871806, now seen corresponding path program 15 times [2018-12-18 17:52:40,882 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:40,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:40,882 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:52:40,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:40,883 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:41,874 INFO L273 TraceCheckUtils]: 0: Hoare triple {3477#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3479#(and (or (<= main_n 15) (<= main_i 0)) (or (<= 0 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:41,876 INFO L273 TraceCheckUtils]: 1: Hoare triple {3479#(and (or (<= main_n 15) (<= main_i 0)) (or (<= 0 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3480#(and (or (<= main_n 15) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 4 main_i)))} is VALID [2018-12-18 17:52:41,878 INFO L273 TraceCheckUtils]: 2: Hoare triple {3480#(and (or (<= main_n 15) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 4 main_i)))} assume i <= n * 4; {3480#(and (or (<= main_n 15) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 4 main_i)))} is VALID [2018-12-18 17:52:41,879 INFO L273 TraceCheckUtils]: 3: Hoare triple {3480#(and (or (<= main_n 15) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 4 main_i)))} assume a[i] != 23;i := i + 4; {3481#(and (or (<= 8 main_i) (< 15 main_n)) (or (<= main_i 8) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:41,880 INFO L273 TraceCheckUtils]: 4: Hoare triple {3481#(and (or (<= 8 main_i) (< 15 main_n)) (or (<= main_i 8) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3481#(and (or (<= 8 main_i) (< 15 main_n)) (or (<= main_i 8) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:41,880 INFO L273 TraceCheckUtils]: 5: Hoare triple {3481#(and (or (<= 8 main_i) (< 15 main_n)) (or (<= main_i 8) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3482#(and (or (< 15 main_n) (<= 12 main_i)) (or (<= main_n 15) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:41,882 INFO L273 TraceCheckUtils]: 6: Hoare triple {3482#(and (or (< 15 main_n) (<= 12 main_i)) (or (<= main_n 15) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3482#(and (or (< 15 main_n) (<= 12 main_i)) (or (<= main_n 15) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:41,883 INFO L273 TraceCheckUtils]: 7: Hoare triple {3482#(and (or (< 15 main_n) (<= 12 main_i)) (or (<= main_n 15) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3483#(and (or (<= main_n 15) (<= main_i 16)) (or (< 15 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:41,884 INFO L273 TraceCheckUtils]: 8: Hoare triple {3483#(and (or (<= main_n 15) (<= main_i 16)) (or (< 15 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3483#(and (or (<= main_n 15) (<= main_i 16)) (or (< 15 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:41,885 INFO L273 TraceCheckUtils]: 9: Hoare triple {3483#(and (or (<= main_n 15) (<= main_i 16)) (or (< 15 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3484#(and (or (< 15 main_n) (<= 20 main_i)) (or (<= main_n 15) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:41,886 INFO L273 TraceCheckUtils]: 10: Hoare triple {3484#(and (or (< 15 main_n) (<= 20 main_i)) (or (<= main_n 15) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3484#(and (or (< 15 main_n) (<= 20 main_i)) (or (<= main_n 15) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:41,887 INFO L273 TraceCheckUtils]: 11: Hoare triple {3484#(and (or (< 15 main_n) (<= 20 main_i)) (or (<= main_n 15) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3485#(and (or (<= main_n 15) (<= main_i 24)) (or (<= 24 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:41,888 INFO L273 TraceCheckUtils]: 12: Hoare triple {3485#(and (or (<= main_n 15) (<= main_i 24)) (or (<= 24 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3485#(and (or (<= main_n 15) (<= main_i 24)) (or (<= 24 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:41,889 INFO L273 TraceCheckUtils]: 13: Hoare triple {3485#(and (or (<= main_n 15) (<= main_i 24)) (or (<= 24 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3486#(and (or (<= main_n 15) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 15 main_n)))} is VALID [2018-12-18 17:52:41,890 INFO L273 TraceCheckUtils]: 14: Hoare triple {3486#(and (or (<= main_n 15) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 15 main_n)))} assume i <= n * 4; {3486#(and (or (<= main_n 15) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 15 main_n)))} is VALID [2018-12-18 17:52:41,892 INFO L273 TraceCheckUtils]: 15: Hoare triple {3486#(and (or (<= main_n 15) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 15 main_n)))} assume a[i] != 23;i := i + 4; {3487#(and (or (<= 32 main_i) (< 15 main_n)) (or (<= main_i 32) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:41,894 INFO L273 TraceCheckUtils]: 16: Hoare triple {3487#(and (or (<= 32 main_i) (< 15 main_n)) (or (<= main_i 32) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3487#(and (or (<= 32 main_i) (< 15 main_n)) (or (<= main_i 32) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:41,894 INFO L273 TraceCheckUtils]: 17: Hoare triple {3487#(and (or (<= 32 main_i) (< 15 main_n)) (or (<= main_i 32) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3488#(and (or (<= main_i 36) (<= main_n 15)) (or (< 15 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:41,896 INFO L273 TraceCheckUtils]: 18: Hoare triple {3488#(and (or (<= main_i 36) (<= main_n 15)) (or (< 15 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3488#(and (or (<= main_i 36) (<= main_n 15)) (or (< 15 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:41,912 INFO L273 TraceCheckUtils]: 19: Hoare triple {3488#(and (or (<= main_i 36) (<= main_n 15)) (or (< 15 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3489#(and (or (<= main_i 40) (<= main_n 15)) (or (<= 40 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:41,925 INFO L273 TraceCheckUtils]: 20: Hoare triple {3489#(and (or (<= main_i 40) (<= main_n 15)) (or (<= 40 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3489#(and (or (<= main_i 40) (<= main_n 15)) (or (<= 40 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:41,938 INFO L273 TraceCheckUtils]: 21: Hoare triple {3489#(and (or (<= main_i 40) (<= main_n 15)) (or (<= 40 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3490#(and (or (<= main_n 15) (<= main_i 44)) (or (<= 44 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:41,950 INFO L273 TraceCheckUtils]: 22: Hoare triple {3490#(and (or (<= main_n 15) (<= main_i 44)) (or (<= 44 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3490#(and (or (<= main_n 15) (<= main_i 44)) (or (<= 44 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:41,966 INFO L273 TraceCheckUtils]: 23: Hoare triple {3490#(and (or (<= main_n 15) (<= main_i 44)) (or (<= 44 main_i) (< 15 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3491#(and (or (<= main_n 15) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 15 main_n)))} is VALID [2018-12-18 17:52:41,972 INFO L273 TraceCheckUtils]: 24: Hoare triple {3491#(and (or (<= main_n 15) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 15 main_n)))} assume i <= n * 4; {3491#(and (or (<= main_n 15) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 15 main_n)))} is VALID [2018-12-18 17:52:41,972 INFO L273 TraceCheckUtils]: 25: Hoare triple {3491#(and (or (<= main_n 15) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 15 main_n)))} assume a[i] != 23;i := i + 4; {3492#(and (or (<= main_i 52) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 52 main_i)))} is VALID [2018-12-18 17:52:41,974 INFO L273 TraceCheckUtils]: 26: Hoare triple {3492#(and (or (<= main_i 52) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 52 main_i)))} assume i <= n * 4; {3492#(and (or (<= main_i 52) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 52 main_i)))} is VALID [2018-12-18 17:52:41,974 INFO L273 TraceCheckUtils]: 27: Hoare triple {3492#(and (or (<= main_i 52) (<= main_n 15)) (= 23 (select main_a (* 4 main_n))) (or (< 15 main_n) (<= 52 main_i)))} assume a[i] != 23;i := i + 4; {3493#(and (or (< 15 main_n) (<= 56 main_i)) (or (<= main_n 15) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:41,976 INFO L273 TraceCheckUtils]: 28: Hoare triple {3493#(and (or (< 15 main_n) (<= 56 main_i)) (or (<= main_n 15) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3493#(and (or (< 15 main_n) (<= 56 main_i)) (or (<= main_n 15) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:41,976 INFO L273 TraceCheckUtils]: 29: Hoare triple {3493#(and (or (< 15 main_n) (<= 56 main_i)) (or (<= main_n 15) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3494#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 15) (<= main_i 60)) (or (<= (* 4 main_n) main_i) (< 15 main_n)))))} is VALID [2018-12-18 17:52:41,978 INFO L273 TraceCheckUtils]: 30: Hoare triple {3494#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 15) (<= main_i 60)) (or (<= (* 4 main_n) main_i) (< 15 main_n)))))} assume i <= n * 4; {3495#(and (or (= (* 4 main_n) main_i) (and (<= main_i 60) (< 15 main_n))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2018-12-18 17:52:41,989 INFO L273 TraceCheckUtils]: 31: Hoare triple {3495#(and (or (= (* 4 main_n) main_i) (and (<= main_i 60) (< 15 main_n))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume a[i] != 23;i := i + 4; {3496#(and (<= main_i 64) (< 15 main_n))} is VALID [2018-12-18 17:52:42,003 INFO L273 TraceCheckUtils]: 32: Hoare triple {3496#(and (<= main_i 64) (< 15 main_n))} assume !(i <= n * 4); {3478#false} is VALID [2018-12-18 17:52:42,009 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:42,009 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:42,009 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:52:42,010 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:52:42,010 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:52:42,010 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:42,010 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:52:42,021 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-18 17:52:42,021 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-18 17:52:42,031 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-18 17:52:42,032 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:52:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:42,046 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:52:42,069 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:52:42,071 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:42,080 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:42,080 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:52:42,082 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:42,082 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_19]. (and (= (store v_main_a_19 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:52:42,082 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:52:42,729 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:52:42,731 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:42,737 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:42,737 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:52:42,740 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:42,740 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 60))) (<= main_i 64) (<= 60 .cse0) (= 23 (select main_a .cse0)))) [2018-12-18 17:52:42,740 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 60 .cse0)) (<= main_i 64) (<= 60 .cse0))) [2018-12-18 17:52:42,764 INFO L273 TraceCheckUtils]: 0: Hoare triple {3477#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3500#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,764 INFO L273 TraceCheckUtils]: 1: Hoare triple {3500#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3504#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:42,765 INFO L273 TraceCheckUtils]: 2: Hoare triple {3504#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {3504#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:42,765 INFO L273 TraceCheckUtils]: 3: Hoare triple {3504#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {3511#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,766 INFO L273 TraceCheckUtils]: 4: Hoare triple {3511#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3511#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,766 INFO L273 TraceCheckUtils]: 5: Hoare triple {3511#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3518#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:42,767 INFO L273 TraceCheckUtils]: 6: Hoare triple {3518#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {3518#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:42,768 INFO L273 TraceCheckUtils]: 7: Hoare triple {3518#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {3525#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,768 INFO L273 TraceCheckUtils]: 8: Hoare triple {3525#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3525#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,769 INFO L273 TraceCheckUtils]: 9: Hoare triple {3525#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3532#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,770 INFO L273 TraceCheckUtils]: 10: Hoare triple {3532#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3532#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,771 INFO L273 TraceCheckUtils]: 11: Hoare triple {3532#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3539#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,771 INFO L273 TraceCheckUtils]: 12: Hoare triple {3539#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3539#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,772 INFO L273 TraceCheckUtils]: 13: Hoare triple {3539#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3546#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,773 INFO L273 TraceCheckUtils]: 14: Hoare triple {3546#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3546#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,773 INFO L273 TraceCheckUtils]: 15: Hoare triple {3546#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3553#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,774 INFO L273 TraceCheckUtils]: 16: Hoare triple {3553#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3553#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,775 INFO L273 TraceCheckUtils]: 17: Hoare triple {3553#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3560#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,776 INFO L273 TraceCheckUtils]: 18: Hoare triple {3560#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3560#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,776 INFO L273 TraceCheckUtils]: 19: Hoare triple {3560#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3567#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,777 INFO L273 TraceCheckUtils]: 20: Hoare triple {3567#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3567#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,778 INFO L273 TraceCheckUtils]: 21: Hoare triple {3567#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3574#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,778 INFO L273 TraceCheckUtils]: 22: Hoare triple {3574#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3574#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,779 INFO L273 TraceCheckUtils]: 23: Hoare triple {3574#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3581#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,780 INFO L273 TraceCheckUtils]: 24: Hoare triple {3581#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3581#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,781 INFO L273 TraceCheckUtils]: 25: Hoare triple {3581#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3588#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,781 INFO L273 TraceCheckUtils]: 26: Hoare triple {3588#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3588#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,782 INFO L273 TraceCheckUtils]: 27: Hoare triple {3588#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3595#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,783 INFO L273 TraceCheckUtils]: 28: Hoare triple {3595#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3595#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,783 INFO L273 TraceCheckUtils]: 29: Hoare triple {3595#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3602#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,784 INFO L273 TraceCheckUtils]: 30: Hoare triple {3602#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3606#(and (= main_i 60) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:42,785 INFO L273 TraceCheckUtils]: 31: Hoare triple {3606#(and (= main_i 60) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3496#(and (<= main_i 64) (< 15 main_n))} is VALID [2018-12-18 17:52:42,786 INFO L273 TraceCheckUtils]: 32: Hoare triple {3496#(and (<= main_i 64) (< 15 main_n))} assume !(i <= n * 4); {3478#false} is VALID [2018-12-18 17:52:42,789 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:42,790 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:52:44,818 INFO L273 TraceCheckUtils]: 32: Hoare triple {3613#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {3478#false} is VALID [2018-12-18 17:52:44,819 INFO L273 TraceCheckUtils]: 31: Hoare triple {3617#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {3613#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:52:44,820 INFO L273 TraceCheckUtils]: 30: Hoare triple {3621#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {3617#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:44,821 INFO L273 TraceCheckUtils]: 29: Hoare triple {3625#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {3621#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:44,822 INFO L273 TraceCheckUtils]: 28: Hoare triple {3625#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {3625#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:44,823 INFO L273 TraceCheckUtils]: 27: Hoare triple {3632#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {3625#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:44,824 INFO L273 TraceCheckUtils]: 26: Hoare triple {3632#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {3632#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:44,825 INFO L273 TraceCheckUtils]: 25: Hoare triple {3639#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {3632#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:44,826 INFO L273 TraceCheckUtils]: 24: Hoare triple {3639#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {3639#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:44,827 INFO L273 TraceCheckUtils]: 23: Hoare triple {3646#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {3639#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:44,827 INFO L273 TraceCheckUtils]: 22: Hoare triple {3646#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {3646#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:44,828 INFO L273 TraceCheckUtils]: 21: Hoare triple {3653#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3646#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:44,829 INFO L273 TraceCheckUtils]: 20: Hoare triple {3653#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {3653#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:44,830 INFO L273 TraceCheckUtils]: 19: Hoare triple {3660#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {3653#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:44,831 INFO L273 TraceCheckUtils]: 18: Hoare triple {3660#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {3660#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:52:44,832 INFO L273 TraceCheckUtils]: 17: Hoare triple {3667#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3660#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:52:44,832 INFO L273 TraceCheckUtils]: 16: Hoare triple {3667#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {3667#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:52:44,834 INFO L273 TraceCheckUtils]: 15: Hoare triple {3674#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3667#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:52:44,834 INFO L273 TraceCheckUtils]: 14: Hoare triple {3674#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {3674#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:52:44,835 INFO L273 TraceCheckUtils]: 13: Hoare triple {3681#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3674#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:52:44,836 INFO L273 TraceCheckUtils]: 12: Hoare triple {3681#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {3681#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:52:44,837 INFO L273 TraceCheckUtils]: 11: Hoare triple {3688#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {3681#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:52:44,838 INFO L273 TraceCheckUtils]: 10: Hoare triple {3688#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {3688#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:52:44,839 INFO L273 TraceCheckUtils]: 9: Hoare triple {3695#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3688#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:52:44,839 INFO L273 TraceCheckUtils]: 8: Hoare triple {3695#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {3695#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:52:44,841 INFO L273 TraceCheckUtils]: 7: Hoare triple {3702#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3695#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:52:44,841 INFO L273 TraceCheckUtils]: 6: Hoare triple {3702#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {3702#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:52:44,842 INFO L273 TraceCheckUtils]: 5: Hoare triple {3709#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {3702#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:52:44,843 INFO L273 TraceCheckUtils]: 4: Hoare triple {3709#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {3709#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:52:44,846 INFO L273 TraceCheckUtils]: 3: Hoare triple {3716#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {3709#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:52:44,846 INFO L273 TraceCheckUtils]: 2: Hoare triple {3716#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {3716#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:52:44,847 INFO L273 TraceCheckUtils]: 1: Hoare triple {3723#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {3716#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:52:44,847 INFO L273 TraceCheckUtils]: 0: Hoare triple {3477#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3723#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:52:44,852 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:44,874 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:52:44,875 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 53 [2018-12-18 17:52:44,875 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:52:44,875 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 33 [2018-12-18 17:52:44,875 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:52:44,875 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 37 states. [2018-12-18 17:52:44,951 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:44,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-12-18 17:52:44,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-12-18 17:52:44,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=422, Invalid=2548, Unknown=0, NotChecked=0, Total=2970 [2018-12-18 17:52:44,953 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 37 states. [2018-12-18 17:52:46,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:46,949 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-12-18 17:52:46,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-18 17:52:46,950 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 33 [2018-12-18 17:52:46,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:46,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-18 17:52:46,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 38 transitions. [2018-12-18 17:52:46,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-18 17:52:46,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 38 transitions. [2018-12-18 17:52:46,952 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states and 38 transitions. [2018-12-18 17:52:47,007 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:47,008 INFO L225 Difference]: With dead ends: 38 [2018-12-18 17:52:47,008 INFO L226 Difference]: Without dead ends: 37 [2018-12-18 17:52:47,010 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=422, Invalid=2548, Unknown=0, NotChecked=0, Total=2970 [2018-12-18 17:52:47,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-18 17:52:47,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2018-12-18 17:52:47,075 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:47,075 INFO L82 GeneralOperation]: Start isEquivalent. First operand 37 states. Second operand 36 states. [2018-12-18 17:52:47,075 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand 36 states. [2018-12-18 17:52:47,075 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 36 states. [2018-12-18 17:52:47,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:47,076 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-12-18 17:52:47,076 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-12-18 17:52:47,077 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:47,077 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:47,077 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand 37 states. [2018-12-18 17:52:47,077 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 37 states. [2018-12-18 17:52:47,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:47,078 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-12-18 17:52:47,078 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-12-18 17:52:47,078 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:47,078 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:47,078 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:47,078 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:47,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-18 17:52:47,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2018-12-18 17:52:47,079 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 33 [2018-12-18 17:52:47,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:47,079 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2018-12-18 17:52:47,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-12-18 17:52:47,079 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2018-12-18 17:52:47,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-18 17:52:47,079 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:47,080 INFO L402 BasicCegarLoop]: trace histogram [17, 16, 1, 1] [2018-12-18 17:52:47,080 INFO L423 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:47,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:47,080 INFO L82 PathProgramCache]: Analyzing trace with hash 886521088, now seen corresponding path program 16 times [2018-12-18 17:52:47,080 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:47,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:47,081 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:52:47,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:47,081 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:47,436 WARN L181 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-12-18 17:52:47,886 WARN L181 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-12-18 17:52:48,536 INFO L273 TraceCheckUtils]: 0: Hoare triple {3909#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3911#(and (or (<= main_i 0) (<= main_n 16)) (or (< 16 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,537 INFO L273 TraceCheckUtils]: 1: Hoare triple {3911#(and (or (<= main_i 0) (<= main_n 16)) (or (< 16 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3912#(and (or (< 16 main_n) (<= 4 main_i)) (or (<= main_n 16) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,538 INFO L273 TraceCheckUtils]: 2: Hoare triple {3912#(and (or (< 16 main_n) (<= 4 main_i)) (or (<= main_n 16) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3912#(and (or (< 16 main_n) (<= 4 main_i)) (or (<= main_n 16) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,539 INFO L273 TraceCheckUtils]: 3: Hoare triple {3912#(and (or (< 16 main_n) (<= 4 main_i)) (or (<= main_n 16) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3913#(and (or (< 16 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,540 INFO L273 TraceCheckUtils]: 4: Hoare triple {3913#(and (or (< 16 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3913#(and (or (< 16 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,541 INFO L273 TraceCheckUtils]: 5: Hoare triple {3913#(and (or (< 16 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3914#(and (or (< 16 main_n) (<= 12 main_i)) (or (<= main_n 16) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,542 INFO L273 TraceCheckUtils]: 6: Hoare triple {3914#(and (or (< 16 main_n) (<= 12 main_i)) (or (<= main_n 16) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3914#(and (or (< 16 main_n) (<= 12 main_i)) (or (<= main_n 16) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,543 INFO L273 TraceCheckUtils]: 7: Hoare triple {3914#(and (or (< 16 main_n) (<= 12 main_i)) (or (<= main_n 16) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3915#(and (or (< 16 main_n) (<= 16 main_i)) (or (<= main_n 16) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,544 INFO L273 TraceCheckUtils]: 8: Hoare triple {3915#(and (or (< 16 main_n) (<= 16 main_i)) (or (<= main_n 16) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3915#(and (or (< 16 main_n) (<= 16 main_i)) (or (<= main_n 16) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,545 INFO L273 TraceCheckUtils]: 9: Hoare triple {3915#(and (or (< 16 main_n) (<= 16 main_i)) (or (<= main_n 16) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3916#(and (or (< 16 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,545 INFO L273 TraceCheckUtils]: 10: Hoare triple {3916#(and (or (< 16 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3916#(and (or (< 16 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,547 INFO L273 TraceCheckUtils]: 11: Hoare triple {3916#(and (or (< 16 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3917#(and (or (<= main_i 24) (<= main_n 16)) (or (< 16 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,547 INFO L273 TraceCheckUtils]: 12: Hoare triple {3917#(and (or (<= main_i 24) (<= main_n 16)) (or (< 16 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3917#(and (or (<= main_i 24) (<= main_n 16)) (or (< 16 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,548 INFO L273 TraceCheckUtils]: 13: Hoare triple {3917#(and (or (<= main_i 24) (<= main_n 16)) (or (< 16 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3918#(and (or (< 16 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 16) (<= main_i 28)))} is VALID [2018-12-18 17:52:48,549 INFO L273 TraceCheckUtils]: 14: Hoare triple {3918#(and (or (< 16 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 16) (<= main_i 28)))} assume i <= n * 4; {3918#(and (or (< 16 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 16) (<= main_i 28)))} is VALID [2018-12-18 17:52:48,550 INFO L273 TraceCheckUtils]: 15: Hoare triple {3918#(and (or (< 16 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 16) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {3919#(and (or (<= main_i 32) (<= main_n 16)) (or (< 16 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,551 INFO L273 TraceCheckUtils]: 16: Hoare triple {3919#(and (or (<= main_i 32) (<= main_n 16)) (or (< 16 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3919#(and (or (<= main_i 32) (<= main_n 16)) (or (< 16 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,552 INFO L273 TraceCheckUtils]: 17: Hoare triple {3919#(and (or (<= main_i 32) (<= main_n 16)) (or (< 16 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3920#(and (or (< 16 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 16)))} is VALID [2018-12-18 17:52:48,553 INFO L273 TraceCheckUtils]: 18: Hoare triple {3920#(and (or (< 16 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 16)))} assume i <= n * 4; {3920#(and (or (< 16 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 16)))} is VALID [2018-12-18 17:52:48,554 INFO L273 TraceCheckUtils]: 19: Hoare triple {3920#(and (or (< 16 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 16)))} assume a[i] != 23;i := i + 4; {3921#(and (or (< 16 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,555 INFO L273 TraceCheckUtils]: 20: Hoare triple {3921#(and (or (< 16 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3921#(and (or (< 16 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,556 INFO L273 TraceCheckUtils]: 21: Hoare triple {3921#(and (or (< 16 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3922#(and (or (< 16 main_n) (<= 44 main_i)) (or (<= main_n 16) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,556 INFO L273 TraceCheckUtils]: 22: Hoare triple {3922#(and (or (< 16 main_n) (<= 44 main_i)) (or (<= main_n 16) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3922#(and (or (< 16 main_n) (<= 44 main_i)) (or (<= main_n 16) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,557 INFO L273 TraceCheckUtils]: 23: Hoare triple {3922#(and (or (< 16 main_n) (<= 44 main_i)) (or (<= main_n 16) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3923#(and (or (<= main_n 16) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (< 16 main_n) (<= 48 main_i)))} is VALID [2018-12-18 17:52:48,558 INFO L273 TraceCheckUtils]: 24: Hoare triple {3923#(and (or (<= main_n 16) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (< 16 main_n) (<= 48 main_i)))} assume i <= n * 4; {3923#(and (or (<= main_n 16) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (< 16 main_n) (<= 48 main_i)))} is VALID [2018-12-18 17:52:48,559 INFO L273 TraceCheckUtils]: 25: Hoare triple {3923#(and (or (<= main_n 16) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (< 16 main_n) (<= 48 main_i)))} assume a[i] != 23;i := i + 4; {3924#(and (or (< 16 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,560 INFO L273 TraceCheckUtils]: 26: Hoare triple {3924#(and (or (< 16 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3924#(and (or (< 16 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,561 INFO L273 TraceCheckUtils]: 27: Hoare triple {3924#(and (or (< 16 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3925#(and (or (<= main_n 16) (<= main_i 56)) (or (< 16 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,562 INFO L273 TraceCheckUtils]: 28: Hoare triple {3925#(and (or (<= main_n 16) (<= main_i 56)) (or (< 16 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3925#(and (or (<= main_n 16) (<= main_i 56)) (or (< 16 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,563 INFO L273 TraceCheckUtils]: 29: Hoare triple {3925#(and (or (<= main_n 16) (<= main_i 56)) (or (< 16 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3926#(and (or (< 16 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,564 INFO L273 TraceCheckUtils]: 30: Hoare triple {3926#(and (or (< 16 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3926#(and (or (< 16 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:48,565 INFO L273 TraceCheckUtils]: 31: Hoare triple {3926#(and (or (< 16 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3927#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 64) (<= main_n 16)) (or (< 16 main_n) (<= (* 4 main_n) main_i)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2018-12-18 17:52:48,566 INFO L273 TraceCheckUtils]: 32: Hoare triple {3927#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 64) (<= main_n 16)) (or (< 16 main_n) (<= (* 4 main_n) main_i)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {3928#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 16 main_n) (<= main_i 64))))} is VALID [2018-12-18 17:52:48,567 INFO L273 TraceCheckUtils]: 33: Hoare triple {3928#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 16 main_n) (<= main_i 64))))} assume a[i] != 23;i := i + 4; {3929#(and (<= 17 main_n) (<= main_i 68))} is VALID [2018-12-18 17:52:48,568 INFO L273 TraceCheckUtils]: 34: Hoare triple {3929#(and (<= 17 main_n) (<= main_i 68))} assume !(i <= n * 4); {3910#false} is VALID [2018-12-18 17:52:48,575 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:48,575 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:48,575 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:52:48,575 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:52:48,575 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:52:48,575 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:48,575 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:52:48,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:52:48,584 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-18 17:52:48,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:48,601 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:52:48,609 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:52:48,611 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:48,622 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:48,622 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:52:48,628 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:48,628 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_20]. (and (= (store v_main_a_20 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:52:48,628 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:52:49,290 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:52:49,301 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:49,307 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:49,307 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:52:49,310 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:49,310 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 64 .cse0) (not (= (select main_a 64) 23)) (= 23 (select main_a .cse0)) (<= main_i 68))) [2018-12-18 17:52:49,310 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 64 .cse0)) (<= 64 .cse0) (<= main_i 68))) [2018-12-18 17:52:49,333 INFO L273 TraceCheckUtils]: 0: Hoare triple {3909#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {3933#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,334 INFO L273 TraceCheckUtils]: 1: Hoare triple {3933#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3937#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:49,335 INFO L273 TraceCheckUtils]: 2: Hoare triple {3937#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {3937#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:49,335 INFO L273 TraceCheckUtils]: 3: Hoare triple {3937#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {3944#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,336 INFO L273 TraceCheckUtils]: 4: Hoare triple {3944#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3944#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,337 INFO L273 TraceCheckUtils]: 5: Hoare triple {3944#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3951#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:49,337 INFO L273 TraceCheckUtils]: 6: Hoare triple {3951#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {3951#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:49,338 INFO L273 TraceCheckUtils]: 7: Hoare triple {3951#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {3958#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,339 INFO L273 TraceCheckUtils]: 8: Hoare triple {3958#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3958#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,340 INFO L273 TraceCheckUtils]: 9: Hoare triple {3958#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3965#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,340 INFO L273 TraceCheckUtils]: 10: Hoare triple {3965#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3965#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,341 INFO L273 TraceCheckUtils]: 11: Hoare triple {3965#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3972#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,342 INFO L273 TraceCheckUtils]: 12: Hoare triple {3972#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3972#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,342 INFO L273 TraceCheckUtils]: 13: Hoare triple {3972#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3979#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,343 INFO L273 TraceCheckUtils]: 14: Hoare triple {3979#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3979#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,344 INFO L273 TraceCheckUtils]: 15: Hoare triple {3979#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3986#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,344 INFO L273 TraceCheckUtils]: 16: Hoare triple {3986#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3986#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,345 INFO L273 TraceCheckUtils]: 17: Hoare triple {3986#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3993#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,346 INFO L273 TraceCheckUtils]: 18: Hoare triple {3993#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {3993#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,347 INFO L273 TraceCheckUtils]: 19: Hoare triple {3993#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4000#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,347 INFO L273 TraceCheckUtils]: 20: Hoare triple {4000#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4000#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,348 INFO L273 TraceCheckUtils]: 21: Hoare triple {4000#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4007#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,349 INFO L273 TraceCheckUtils]: 22: Hoare triple {4007#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4007#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,349 INFO L273 TraceCheckUtils]: 23: Hoare triple {4007#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4014#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,350 INFO L273 TraceCheckUtils]: 24: Hoare triple {4014#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4014#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,351 INFO L273 TraceCheckUtils]: 25: Hoare triple {4014#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4021#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,351 INFO L273 TraceCheckUtils]: 26: Hoare triple {4021#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4021#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,352 INFO L273 TraceCheckUtils]: 27: Hoare triple {4021#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4028#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,353 INFO L273 TraceCheckUtils]: 28: Hoare triple {4028#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4028#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,354 INFO L273 TraceCheckUtils]: 29: Hoare triple {4028#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4035#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,354 INFO L273 TraceCheckUtils]: 30: Hoare triple {4035#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4035#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,355 INFO L273 TraceCheckUtils]: 31: Hoare triple {4035#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4042#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,356 INFO L273 TraceCheckUtils]: 32: Hoare triple {4042#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4046#(and (= main_i 64) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:49,357 INFO L273 TraceCheckUtils]: 33: Hoare triple {4046#(and (= main_i 64) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {3929#(and (<= 17 main_n) (<= main_i 68))} is VALID [2018-12-18 17:52:49,357 INFO L273 TraceCheckUtils]: 34: Hoare triple {3929#(and (<= 17 main_n) (<= main_i 68))} assume !(i <= n * 4); {3910#false} is VALID [2018-12-18 17:52:49,361 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:49,361 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:52:50,630 INFO L273 TraceCheckUtils]: 34: Hoare triple {4053#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {3910#false} is VALID [2018-12-18 17:52:50,632 INFO L273 TraceCheckUtils]: 33: Hoare triple {4057#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {4053#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:52:50,633 INFO L273 TraceCheckUtils]: 32: Hoare triple {4061#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {4057#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:50,634 INFO L273 TraceCheckUtils]: 31: Hoare triple {4065#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {4061#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:50,634 INFO L273 TraceCheckUtils]: 30: Hoare triple {4065#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {4065#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:50,636 INFO L273 TraceCheckUtils]: 29: Hoare triple {4072#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {4065#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:50,636 INFO L273 TraceCheckUtils]: 28: Hoare triple {4072#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {4072#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:50,637 INFO L273 TraceCheckUtils]: 27: Hoare triple {4079#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {4072#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:50,638 INFO L273 TraceCheckUtils]: 26: Hoare triple {4079#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {4079#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:50,639 INFO L273 TraceCheckUtils]: 25: Hoare triple {4086#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {4079#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:50,640 INFO L273 TraceCheckUtils]: 24: Hoare triple {4086#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {4086#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:50,641 INFO L273 TraceCheckUtils]: 23: Hoare triple {4093#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4086#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:50,641 INFO L273 TraceCheckUtils]: 22: Hoare triple {4093#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {4093#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:50,643 INFO L273 TraceCheckUtils]: 21: Hoare triple {4100#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {4093#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:50,643 INFO L273 TraceCheckUtils]: 20: Hoare triple {4100#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {4100#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:52:50,644 INFO L273 TraceCheckUtils]: 19: Hoare triple {4107#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4100#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:52:50,645 INFO L273 TraceCheckUtils]: 18: Hoare triple {4107#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {4107#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:52:50,646 INFO L273 TraceCheckUtils]: 17: Hoare triple {4114#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4107#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:52:50,647 INFO L273 TraceCheckUtils]: 16: Hoare triple {4114#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {4114#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:52:50,648 INFO L273 TraceCheckUtils]: 15: Hoare triple {4121#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4114#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:52:50,648 INFO L273 TraceCheckUtils]: 14: Hoare triple {4121#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {4121#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:52:50,649 INFO L273 TraceCheckUtils]: 13: Hoare triple {4128#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {4121#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:52:50,650 INFO L273 TraceCheckUtils]: 12: Hoare triple {4128#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {4128#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:52:50,651 INFO L273 TraceCheckUtils]: 11: Hoare triple {4135#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4128#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:52:50,652 INFO L273 TraceCheckUtils]: 10: Hoare triple {4135#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {4135#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:52:50,653 INFO L273 TraceCheckUtils]: 9: Hoare triple {4142#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4135#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:52:50,654 INFO L273 TraceCheckUtils]: 8: Hoare triple {4142#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {4142#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:52:50,655 INFO L273 TraceCheckUtils]: 7: Hoare triple {4149#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {4142#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:52:50,655 INFO L273 TraceCheckUtils]: 6: Hoare triple {4149#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {4149#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:52:50,657 INFO L273 TraceCheckUtils]: 5: Hoare triple {4156#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4149#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:52:50,657 INFO L273 TraceCheckUtils]: 4: Hoare triple {4156#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {4156#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:52:50,658 INFO L273 TraceCheckUtils]: 3: Hoare triple {4163#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {4156#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:52:50,659 INFO L273 TraceCheckUtils]: 2: Hoare triple {4163#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {4163#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:52:50,660 INFO L273 TraceCheckUtils]: 1: Hoare triple {4170#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {4163#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:52:50,661 INFO L273 TraceCheckUtils]: 0: Hoare triple {3909#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {4170#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:52:50,667 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:50,685 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:52:50,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 56 [2018-12-18 17:52:50,685 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:52:50,686 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 35 [2018-12-18 17:52:50,686 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:52:50,686 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 39 states. [2018-12-18 17:52:50,768 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 69 edges. 69 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:50,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2018-12-18 17:52:50,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2018-12-18 17:52:50,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=464, Invalid=2842, Unknown=0, NotChecked=0, Total=3306 [2018-12-18 17:52:50,770 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 39 states. [2018-12-18 17:52:52,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:52,886 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2018-12-18 17:52:52,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-12-18 17:52:52,886 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 35 [2018-12-18 17:52:52,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:52,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-18 17:52:52,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 40 transitions. [2018-12-18 17:52:52,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-18 17:52:52,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 40 transitions. [2018-12-18 17:52:52,889 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 21 states and 40 transitions. [2018-12-18 17:52:52,933 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 40 edges. 40 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:52,934 INFO L225 Difference]: With dead ends: 40 [2018-12-18 17:52:52,934 INFO L226 Difference]: Without dead ends: 39 [2018-12-18 17:52:52,936 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=464, Invalid=2842, Unknown=0, NotChecked=0, Total=3306 [2018-12-18 17:52:52,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-18 17:52:52,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2018-12-18 17:52:52,983 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:52,983 INFO L82 GeneralOperation]: Start isEquivalent. First operand 39 states. Second operand 38 states. [2018-12-18 17:52:52,984 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 38 states. [2018-12-18 17:52:52,984 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 38 states. [2018-12-18 17:52:52,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:52,985 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2018-12-18 17:52:52,985 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2018-12-18 17:52:52,985 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:52,986 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:52,986 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 39 states. [2018-12-18 17:52:52,986 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 39 states. [2018-12-18 17:52:52,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:52,987 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2018-12-18 17:52:52,987 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2018-12-18 17:52:52,987 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:52,987 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:52,987 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:52,987 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:52,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-18 17:52:52,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2018-12-18 17:52:52,988 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 35 [2018-12-18 17:52:52,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:52,988 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2018-12-18 17:52:52,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has 39 states. [2018-12-18 17:52:52,988 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2018-12-18 17:52:52,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-18 17:52:52,989 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:52,989 INFO L402 BasicCegarLoop]: trace histogram [18, 17, 1, 1] [2018-12-18 17:52:52,989 INFO L423 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:52,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:52,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1543242050, now seen corresponding path program 17 times [2018-12-18 17:52:52,989 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:52,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:52,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:52:52,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:52,990 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:53,366 WARN L181 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-12-18 17:52:54,126 INFO L273 TraceCheckUtils]: 0: Hoare triple {4366#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {4368#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 0) (<= main_n 17)))} is VALID [2018-12-18 17:52:54,127 INFO L273 TraceCheckUtils]: 1: Hoare triple {4368#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 0) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4369#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 17 main_n)) (or (<= main_i 4) (<= main_n 17)))} is VALID [2018-12-18 17:52:54,128 INFO L273 TraceCheckUtils]: 2: Hoare triple {4369#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 17 main_n)) (or (<= main_i 4) (<= main_n 17)))} assume i <= n * 4; {4369#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 17 main_n)) (or (<= main_i 4) (<= main_n 17)))} is VALID [2018-12-18 17:52:54,129 INFO L273 TraceCheckUtils]: 3: Hoare triple {4369#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 17 main_n)) (or (<= main_i 4) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4370#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 8) (<= main_n 17)))} is VALID [2018-12-18 17:52:54,130 INFO L273 TraceCheckUtils]: 4: Hoare triple {4370#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 8) (<= main_n 17)))} assume i <= n * 4; {4370#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 8) (<= main_n 17)))} is VALID [2018-12-18 17:52:54,131 INFO L273 TraceCheckUtils]: 5: Hoare triple {4370#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 8) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4371#(and (or (<= main_n 17) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2018-12-18 17:52:54,132 INFO L273 TraceCheckUtils]: 6: Hoare triple {4371#(and (or (<= main_n 17) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume i <= n * 4; {4371#(and (or (<= main_n 17) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2018-12-18 17:52:54,133 INFO L273 TraceCheckUtils]: 7: Hoare triple {4371#(and (or (<= main_n 17) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume a[i] != 23;i := i + 4; {4372#(and (or (<= main_i 16) (<= main_n 17)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2018-12-18 17:52:54,134 INFO L273 TraceCheckUtils]: 8: Hoare triple {4372#(and (or (<= main_i 16) (<= main_n 17)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume i <= n * 4; {4372#(and (or (<= main_i 16) (<= main_n 17)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2018-12-18 17:52:54,135 INFO L273 TraceCheckUtils]: 9: Hoare triple {4372#(and (or (<= main_i 16) (<= main_n 17)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume a[i] != 23;i := i + 4; {4373#(and (or (< 17 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 17)))} is VALID [2018-12-18 17:52:54,136 INFO L273 TraceCheckUtils]: 10: Hoare triple {4373#(and (or (< 17 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 17)))} assume i <= n * 4; {4373#(and (or (< 17 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 17)))} is VALID [2018-12-18 17:52:54,137 INFO L273 TraceCheckUtils]: 11: Hoare triple {4373#(and (or (< 17 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4374#(and (or (<= main_i 24) (<= main_n 17)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2018-12-18 17:52:54,138 INFO L273 TraceCheckUtils]: 12: Hoare triple {4374#(and (or (<= main_i 24) (<= main_n 17)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume i <= n * 4; {4374#(and (or (<= main_i 24) (<= main_n 17)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2018-12-18 17:52:54,139 INFO L273 TraceCheckUtils]: 13: Hoare triple {4374#(and (or (<= main_i 24) (<= main_n 17)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume a[i] != 23;i := i + 4; {4375#(and (or (<= main_n 17) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2018-12-18 17:52:54,140 INFO L273 TraceCheckUtils]: 14: Hoare triple {4375#(and (or (<= main_n 17) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume i <= n * 4; {4375#(and (or (<= main_n 17) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2018-12-18 17:52:54,141 INFO L273 TraceCheckUtils]: 15: Hoare triple {4375#(and (or (<= main_n 17) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume a[i] != 23;i := i + 4; {4376#(and (or (<= main_i 32) (<= main_n 17)) (or (< 17 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:54,142 INFO L273 TraceCheckUtils]: 16: Hoare triple {4376#(and (or (<= main_i 32) (<= main_n 17)) (or (< 17 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {4376#(and (or (<= main_i 32) (<= main_n 17)) (or (< 17 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:54,143 INFO L273 TraceCheckUtils]: 17: Hoare triple {4376#(and (or (<= main_i 32) (<= main_n 17)) (or (< 17 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {4377#(and (or (<= main_i 36) (<= main_n 17)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 17 main_n)))} is VALID [2018-12-18 17:52:54,144 INFO L273 TraceCheckUtils]: 18: Hoare triple {4377#(and (or (<= main_i 36) (<= main_n 17)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 17 main_n)))} assume i <= n * 4; {4377#(and (or (<= main_i 36) (<= main_n 17)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 17 main_n)))} is VALID [2018-12-18 17:52:54,145 INFO L273 TraceCheckUtils]: 19: Hoare triple {4377#(and (or (<= main_i 36) (<= main_n 17)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 17 main_n)))} assume a[i] != 23;i := i + 4; {4378#(and (or (< 17 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 17)))} is VALID [2018-12-18 17:52:54,145 INFO L273 TraceCheckUtils]: 20: Hoare triple {4378#(and (or (< 17 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 17)))} assume i <= n * 4; {4378#(and (or (< 17 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 17)))} is VALID [2018-12-18 17:52:54,147 INFO L273 TraceCheckUtils]: 21: Hoare triple {4378#(and (or (< 17 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4379#(and (or (<= main_n 17) (<= main_i 44)) (or (< 17 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:54,147 INFO L273 TraceCheckUtils]: 22: Hoare triple {4379#(and (or (<= main_n 17) (<= main_i 44)) (or (< 17 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {4379#(and (or (<= main_n 17) (<= main_i 44)) (or (< 17 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:52:54,148 INFO L273 TraceCheckUtils]: 23: Hoare triple {4379#(and (or (<= main_n 17) (<= main_i 44)) (or (< 17 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {4380#(and (or (<= main_i 48) (<= main_n 17)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2018-12-18 17:52:54,149 INFO L273 TraceCheckUtils]: 24: Hoare triple {4380#(and (or (<= main_i 48) (<= main_n 17)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume i <= n * 4; {4380#(and (or (<= main_i 48) (<= main_n 17)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2018-12-18 17:52:54,150 INFO L273 TraceCheckUtils]: 25: Hoare triple {4380#(and (or (<= main_i 48) (<= main_n 17)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume a[i] != 23;i := i + 4; {4381#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 52) (<= main_n 17)))} is VALID [2018-12-18 17:52:54,151 INFO L273 TraceCheckUtils]: 26: Hoare triple {4381#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 52) (<= main_n 17)))} assume i <= n * 4; {4381#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 52) (<= main_n 17)))} is VALID [2018-12-18 17:52:54,152 INFO L273 TraceCheckUtils]: 27: Hoare triple {4381#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 52) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4382#(and (or (<= main_i 56) (<= main_n 17)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2018-12-18 17:52:54,153 INFO L273 TraceCheckUtils]: 28: Hoare triple {4382#(and (or (<= main_i 56) (<= main_n 17)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume i <= n * 4; {4382#(and (or (<= main_i 56) (<= main_n 17)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} is VALID [2018-12-18 17:52:54,154 INFO L273 TraceCheckUtils]: 29: Hoare triple {4382#(and (or (<= main_i 56) (<= main_n 17)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)))} assume a[i] != 23;i := i + 4; {4383#(and (or (< 17 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 17)))} is VALID [2018-12-18 17:52:54,155 INFO L273 TraceCheckUtils]: 30: Hoare triple {4383#(and (or (< 17 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 17)))} assume i <= n * 4; {4383#(and (or (< 17 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 17)))} is VALID [2018-12-18 17:52:54,156 INFO L273 TraceCheckUtils]: 31: Hoare triple {4383#(and (or (< 17 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4384#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 64) (<= main_n 17)))} is VALID [2018-12-18 17:52:54,156 INFO L273 TraceCheckUtils]: 32: Hoare triple {4384#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 64) (<= main_n 17)))} assume i <= n * 4; {4384#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 64) (<= main_n 17)))} is VALID [2018-12-18 17:52:54,158 INFO L273 TraceCheckUtils]: 33: Hoare triple {4384#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 17 main_n)) (or (<= main_i 64) (<= main_n 17)))} assume a[i] != 23;i := i + 4; {4385#(and (or (<= main_n 17) (<= main_i 68)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 17 main_n)))} is VALID [2018-12-18 17:52:54,159 INFO L273 TraceCheckUtils]: 34: Hoare triple {4385#(and (or (<= main_n 17) (<= main_i 68)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 17 main_n)))} assume i <= n * 4; {4386#(and (or (< 17 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 68))} is VALID [2018-12-18 17:52:54,160 INFO L273 TraceCheckUtils]: 35: Hoare triple {4386#(and (or (< 17 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 68))} assume a[i] != 23;i := i + 4; {4387#(and (< 17 main_n) (<= main_i 72))} is VALID [2018-12-18 17:52:54,161 INFO L273 TraceCheckUtils]: 36: Hoare triple {4387#(and (< 17 main_n) (<= main_i 72))} assume !(i <= n * 4); {4367#false} is VALID [2018-12-18 17:52:54,168 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:54,168 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:54,168 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:52:54,168 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:52:54,169 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:52:54,169 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:54,169 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:52:54,178 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-18 17:52:54,178 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-18 17:52:54,204 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2018-12-18 17:52:54,204 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:52:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:54,217 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:52:54,230 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:52:54,231 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:54,236 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:54,237 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:52:54,239 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:54,239 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_21]. (and (= (store v_main_a_21 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:52:54,240 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:52:55,016 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:52:55,019 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:55,026 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:55,026 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:52:55,029 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:55,029 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 72) (= 23 (select main_a .cse0)) (<= 68 .cse0) (not (= (select main_a 68) 23)))) [2018-12-18 17:52:55,029 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 68 .cse0)) (<= main_i 72) (<= 68 .cse0))) [2018-12-18 17:52:55,057 INFO L273 TraceCheckUtils]: 0: Hoare triple {4366#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {4391#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,057 INFO L273 TraceCheckUtils]: 1: Hoare triple {4391#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4395#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:55,058 INFO L273 TraceCheckUtils]: 2: Hoare triple {4395#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {4395#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:52:55,058 INFO L273 TraceCheckUtils]: 3: Hoare triple {4395#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {4402#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,059 INFO L273 TraceCheckUtils]: 4: Hoare triple {4402#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4402#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,059 INFO L273 TraceCheckUtils]: 5: Hoare triple {4402#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4409#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:55,059 INFO L273 TraceCheckUtils]: 6: Hoare triple {4409#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {4409#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:52:55,060 INFO L273 TraceCheckUtils]: 7: Hoare triple {4409#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {4416#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,061 INFO L273 TraceCheckUtils]: 8: Hoare triple {4416#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4416#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,062 INFO L273 TraceCheckUtils]: 9: Hoare triple {4416#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4423#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,062 INFO L273 TraceCheckUtils]: 10: Hoare triple {4423#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4423#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,063 INFO L273 TraceCheckUtils]: 11: Hoare triple {4423#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4430#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,064 INFO L273 TraceCheckUtils]: 12: Hoare triple {4430#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4430#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,065 INFO L273 TraceCheckUtils]: 13: Hoare triple {4430#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4437#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,065 INFO L273 TraceCheckUtils]: 14: Hoare triple {4437#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4437#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,066 INFO L273 TraceCheckUtils]: 15: Hoare triple {4437#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4444#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,067 INFO L273 TraceCheckUtils]: 16: Hoare triple {4444#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4444#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,068 INFO L273 TraceCheckUtils]: 17: Hoare triple {4444#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4451#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,069 INFO L273 TraceCheckUtils]: 18: Hoare triple {4451#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4451#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,069 INFO L273 TraceCheckUtils]: 19: Hoare triple {4451#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4458#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,070 INFO L273 TraceCheckUtils]: 20: Hoare triple {4458#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4458#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,071 INFO L273 TraceCheckUtils]: 21: Hoare triple {4458#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4465#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,072 INFO L273 TraceCheckUtils]: 22: Hoare triple {4465#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4465#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,072 INFO L273 TraceCheckUtils]: 23: Hoare triple {4465#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4472#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,073 INFO L273 TraceCheckUtils]: 24: Hoare triple {4472#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4472#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,074 INFO L273 TraceCheckUtils]: 25: Hoare triple {4472#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4479#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,075 INFO L273 TraceCheckUtils]: 26: Hoare triple {4479#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4479#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,075 INFO L273 TraceCheckUtils]: 27: Hoare triple {4479#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4486#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,076 INFO L273 TraceCheckUtils]: 28: Hoare triple {4486#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4486#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,077 INFO L273 TraceCheckUtils]: 29: Hoare triple {4486#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4493#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,078 INFO L273 TraceCheckUtils]: 30: Hoare triple {4493#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4493#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,078 INFO L273 TraceCheckUtils]: 31: Hoare triple {4493#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4500#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,079 INFO L273 TraceCheckUtils]: 32: Hoare triple {4500#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4500#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,080 INFO L273 TraceCheckUtils]: 33: Hoare triple {4500#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4507#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,081 INFO L273 TraceCheckUtils]: 34: Hoare triple {4507#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4511#(and (<= main_i (* 4 main_n)) (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:52:55,082 INFO L273 TraceCheckUtils]: 35: Hoare triple {4511#(and (<= main_i (* 4 main_n)) (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4387#(and (< 17 main_n) (<= main_i 72))} is VALID [2018-12-18 17:52:55,082 INFO L273 TraceCheckUtils]: 36: Hoare triple {4387#(and (< 17 main_n) (<= main_i 72))} assume !(i <= n * 4); {4367#false} is VALID [2018-12-18 17:52:55,087 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:55,087 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:52:56,357 INFO L273 TraceCheckUtils]: 36: Hoare triple {4518#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {4367#false} is VALID [2018-12-18 17:52:56,359 INFO L273 TraceCheckUtils]: 35: Hoare triple {4522#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {4518#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:52:56,359 INFO L273 TraceCheckUtils]: 34: Hoare triple {4526#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {4522#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:56,360 INFO L273 TraceCheckUtils]: 33: Hoare triple {4530#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {4526#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:52:56,361 INFO L273 TraceCheckUtils]: 32: Hoare triple {4530#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {4530#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:56,362 INFO L273 TraceCheckUtils]: 31: Hoare triple {4537#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {4530#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:52:56,363 INFO L273 TraceCheckUtils]: 30: Hoare triple {4537#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {4537#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:56,364 INFO L273 TraceCheckUtils]: 29: Hoare triple {4544#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {4537#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:52:56,364 INFO L273 TraceCheckUtils]: 28: Hoare triple {4544#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {4544#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:56,365 INFO L273 TraceCheckUtils]: 27: Hoare triple {4551#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {4544#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:52:56,366 INFO L273 TraceCheckUtils]: 26: Hoare triple {4551#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {4551#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:56,367 INFO L273 TraceCheckUtils]: 25: Hoare triple {4558#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4551#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:52:56,367 INFO L273 TraceCheckUtils]: 24: Hoare triple {4558#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {4558#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:56,368 INFO L273 TraceCheckUtils]: 23: Hoare triple {4565#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {4558#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:52:56,369 INFO L273 TraceCheckUtils]: 22: Hoare triple {4565#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {4565#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:52:56,370 INFO L273 TraceCheckUtils]: 21: Hoare triple {4572#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4565#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:52:56,371 INFO L273 TraceCheckUtils]: 20: Hoare triple {4572#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {4572#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:52:56,372 INFO L273 TraceCheckUtils]: 19: Hoare triple {4579#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4572#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:52:56,372 INFO L273 TraceCheckUtils]: 18: Hoare triple {4579#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {4579#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:52:56,373 INFO L273 TraceCheckUtils]: 17: Hoare triple {4586#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4579#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:52:56,374 INFO L273 TraceCheckUtils]: 16: Hoare triple {4586#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {4586#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:52:56,375 INFO L273 TraceCheckUtils]: 15: Hoare triple {4593#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {4586#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:52:56,375 INFO L273 TraceCheckUtils]: 14: Hoare triple {4593#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {4593#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:52:56,377 INFO L273 TraceCheckUtils]: 13: Hoare triple {4600#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4593#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:52:56,377 INFO L273 TraceCheckUtils]: 12: Hoare triple {4600#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {4600#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:52:56,378 INFO L273 TraceCheckUtils]: 11: Hoare triple {4607#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4600#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:52:56,379 INFO L273 TraceCheckUtils]: 10: Hoare triple {4607#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {4607#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:52:56,380 INFO L273 TraceCheckUtils]: 9: Hoare triple {4614#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {4607#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:52:56,380 INFO L273 TraceCheckUtils]: 8: Hoare triple {4614#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {4614#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:52:56,381 INFO L273 TraceCheckUtils]: 7: Hoare triple {4621#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {4614#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:52:56,382 INFO L273 TraceCheckUtils]: 6: Hoare triple {4621#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {4621#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:52:56,383 INFO L273 TraceCheckUtils]: 5: Hoare triple {4628#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {4621#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:52:56,383 INFO L273 TraceCheckUtils]: 4: Hoare triple {4628#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {4628#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:52:56,385 INFO L273 TraceCheckUtils]: 3: Hoare triple {4635#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {4628#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:52:56,385 INFO L273 TraceCheckUtils]: 2: Hoare triple {4635#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {4635#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:52:56,386 INFO L273 TraceCheckUtils]: 1: Hoare triple {4642#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {4635#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:52:56,387 INFO L273 TraceCheckUtils]: 0: Hoare triple {4366#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {4642#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:52:56,393 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:56,412 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:52:56,412 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 59 [2018-12-18 17:52:56,413 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:52:56,413 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 37 [2018-12-18 17:52:56,413 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:52:56,413 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 41 states. [2018-12-18 17:52:56,534 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 73 edges. 73 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:56,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-12-18 17:52:56,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-12-18 17:52:56,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=508, Invalid=3152, Unknown=0, NotChecked=0, Total=3660 [2018-12-18 17:52:56,537 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 41 states. [2018-12-18 17:52:58,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:58,880 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2018-12-18 17:52:58,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-12-18 17:52:58,880 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 37 [2018-12-18 17:52:58,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:58,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-18 17:52:58,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 42 transitions. [2018-12-18 17:52:58,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-18 17:52:58,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 42 transitions. [2018-12-18 17:52:58,882 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 22 states and 42 transitions. [2018-12-18 17:52:58,925 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:58,926 INFO L225 Difference]: With dead ends: 42 [2018-12-18 17:52:58,926 INFO L226 Difference]: Without dead ends: 41 [2018-12-18 17:52:58,929 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 836 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=508, Invalid=3152, Unknown=0, NotChecked=0, Total=3660 [2018-12-18 17:52:58,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-18 17:52:59,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2018-12-18 17:52:59,061 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:59,061 INFO L82 GeneralOperation]: Start isEquivalent. First operand 41 states. Second operand 40 states. [2018-12-18 17:52:59,062 INFO L74 IsIncluded]: Start isIncluded. First operand 41 states. Second operand 40 states. [2018-12-18 17:52:59,062 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 40 states. [2018-12-18 17:52:59,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:59,063 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2018-12-18 17:52:59,063 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2018-12-18 17:52:59,064 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:59,064 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:59,064 INFO L74 IsIncluded]: Start isIncluded. First operand 40 states. Second operand 41 states. [2018-12-18 17:52:59,064 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 41 states. [2018-12-18 17:52:59,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:59,065 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2018-12-18 17:52:59,065 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2018-12-18 17:52:59,065 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:59,065 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:59,066 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:59,066 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:59,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-12-18 17:52:59,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2018-12-18 17:52:59,067 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 37 [2018-12-18 17:52:59,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:59,067 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2018-12-18 17:52:59,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-12-18 17:52:59,067 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2018-12-18 17:52:59,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-12-18 17:52:59,068 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:59,068 INFO L402 BasicCegarLoop]: trace histogram [19, 18, 1, 1] [2018-12-18 17:52:59,068 INFO L423 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:59,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:59,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1291894020, now seen corresponding path program 18 times [2018-12-18 17:52:59,069 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:59,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:59,070 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:52:59,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:59,070 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:59,428 WARN L181 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-12-18 17:53:00,492 INFO L273 TraceCheckUtils]: 0: Hoare triple {4848#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {4850#(and (or (<= main_n 18) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} is VALID [2018-12-18 17:53:00,494 INFO L273 TraceCheckUtils]: 1: Hoare triple {4850#(and (or (<= main_n 18) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} assume a[i] != 23;i := i + 4; {4851#(and (or (< 18 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 18) (<= main_i 4)))} is VALID [2018-12-18 17:53:00,495 INFO L273 TraceCheckUtils]: 2: Hoare triple {4851#(and (or (< 18 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 18) (<= main_i 4)))} assume i <= n * 4; {4851#(and (or (< 18 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 18) (<= main_i 4)))} is VALID [2018-12-18 17:53:00,496 INFO L273 TraceCheckUtils]: 3: Hoare triple {4851#(and (or (< 18 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 18) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {4852#(and (or (<= main_n 18) (<= main_i 8)) (or (< 18 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:00,497 INFO L273 TraceCheckUtils]: 4: Hoare triple {4852#(and (or (<= main_n 18) (<= main_i 8)) (or (< 18 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {4852#(and (or (<= main_n 18) (<= main_i 8)) (or (< 18 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:00,498 INFO L273 TraceCheckUtils]: 5: Hoare triple {4852#(and (or (<= main_n 18) (<= main_i 8)) (or (< 18 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {4853#(and (or (< 18 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 12)))} is VALID [2018-12-18 17:53:00,499 INFO L273 TraceCheckUtils]: 6: Hoare triple {4853#(and (or (< 18 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 12)))} assume i <= n * 4; {4853#(and (or (< 18 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 12)))} is VALID [2018-12-18 17:53:00,500 INFO L273 TraceCheckUtils]: 7: Hoare triple {4853#(and (or (< 18 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {4854#(and (or (<= main_n 18) (<= main_i 16)) (or (< 18 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:00,501 INFO L273 TraceCheckUtils]: 8: Hoare triple {4854#(and (or (<= main_n 18) (<= main_i 16)) (or (< 18 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {4854#(and (or (<= main_n 18) (<= main_i 16)) (or (< 18 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:00,502 INFO L273 TraceCheckUtils]: 9: Hoare triple {4854#(and (or (<= main_n 18) (<= main_i 16)) (or (< 18 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {4855#(and (or (<= main_n 18) (<= main_i 20)) (or (< 18 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:00,503 INFO L273 TraceCheckUtils]: 10: Hoare triple {4855#(and (or (<= main_n 18) (<= main_i 20)) (or (< 18 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {4855#(and (or (<= main_n 18) (<= main_i 20)) (or (< 18 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:00,504 INFO L273 TraceCheckUtils]: 11: Hoare triple {4855#(and (or (<= main_n 18) (<= main_i 20)) (or (< 18 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {4856#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 24)))} is VALID [2018-12-18 17:53:00,504 INFO L273 TraceCheckUtils]: 12: Hoare triple {4856#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 24)))} assume i <= n * 4; {4856#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 24)))} is VALID [2018-12-18 17:53:00,506 INFO L273 TraceCheckUtils]: 13: Hoare triple {4856#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {4857#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 28)))} is VALID [2018-12-18 17:53:00,506 INFO L273 TraceCheckUtils]: 14: Hoare triple {4857#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 28)))} assume i <= n * 4; {4857#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 28)))} is VALID [2018-12-18 17:53:00,508 INFO L273 TraceCheckUtils]: 15: Hoare triple {4857#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)) (or (<= main_n 18) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {4858#(and (or (< 18 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 18)))} is VALID [2018-12-18 17:53:00,508 INFO L273 TraceCheckUtils]: 16: Hoare triple {4858#(and (or (< 18 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 18)))} assume i <= n * 4; {4858#(and (or (< 18 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 18)))} is VALID [2018-12-18 17:53:00,509 INFO L273 TraceCheckUtils]: 17: Hoare triple {4858#(and (or (< 18 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 18)))} assume a[i] != 23;i := i + 4; {4859#(and (or (<= main_n 18) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 18 main_n)))} is VALID [2018-12-18 17:53:00,510 INFO L273 TraceCheckUtils]: 18: Hoare triple {4859#(and (or (<= main_n 18) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 18 main_n)))} assume i <= n * 4; {4859#(and (or (<= main_n 18) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 18 main_n)))} is VALID [2018-12-18 17:53:00,511 INFO L273 TraceCheckUtils]: 19: Hoare triple {4859#(and (or (<= main_n 18) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 18 main_n)))} assume a[i] != 23;i := i + 4; {4860#(and (or (< 18 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 40)))} is VALID [2018-12-18 17:53:00,512 INFO L273 TraceCheckUtils]: 20: Hoare triple {4860#(and (or (< 18 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 40)))} assume i <= n * 4; {4860#(and (or (< 18 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 40)))} is VALID [2018-12-18 17:53:00,513 INFO L273 TraceCheckUtils]: 21: Hoare triple {4860#(and (or (< 18 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 40)))} assume a[i] != 23;i := i + 4; {4861#(and (or (< 18 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 44)))} is VALID [2018-12-18 17:53:00,514 INFO L273 TraceCheckUtils]: 22: Hoare triple {4861#(and (or (< 18 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 44)))} assume i <= n * 4; {4861#(and (or (< 18 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 44)))} is VALID [2018-12-18 17:53:00,515 INFO L273 TraceCheckUtils]: 23: Hoare triple {4861#(and (or (< 18 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {4862#(and (or (<= main_n 18) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} is VALID [2018-12-18 17:53:00,516 INFO L273 TraceCheckUtils]: 24: Hoare triple {4862#(and (or (<= main_n 18) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} assume i <= n * 4; {4862#(and (or (<= main_n 18) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} is VALID [2018-12-18 17:53:00,517 INFO L273 TraceCheckUtils]: 25: Hoare triple {4862#(and (or (<= main_n 18) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} assume a[i] != 23;i := i + 4; {4863#(and (or (<= main_n 18) (<= main_i 52)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} is VALID [2018-12-18 17:53:00,518 INFO L273 TraceCheckUtils]: 26: Hoare triple {4863#(and (or (<= main_n 18) (<= main_i 52)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} assume i <= n * 4; {4863#(and (or (<= main_n 18) (<= main_i 52)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} is VALID [2018-12-18 17:53:00,519 INFO L273 TraceCheckUtils]: 27: Hoare triple {4863#(and (or (<= main_n 18) (<= main_i 52)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} assume a[i] != 23;i := i + 4; {4864#(and (or (< 18 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 56)))} is VALID [2018-12-18 17:53:00,520 INFO L273 TraceCheckUtils]: 28: Hoare triple {4864#(and (or (< 18 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 56)))} assume i <= n * 4; {4864#(and (or (< 18 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 56)))} is VALID [2018-12-18 17:53:00,521 INFO L273 TraceCheckUtils]: 29: Hoare triple {4864#(and (or (< 18 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 56)))} assume a[i] != 23;i := i + 4; {4865#(and (or (<= main_n 18) (<= main_i 60)) (or (< 18 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:00,522 INFO L273 TraceCheckUtils]: 30: Hoare triple {4865#(and (or (<= main_n 18) (<= main_i 60)) (or (< 18 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {4865#(and (or (<= main_n 18) (<= main_i 60)) (or (< 18 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:00,523 INFO L273 TraceCheckUtils]: 31: Hoare triple {4865#(and (or (<= main_n 18) (<= main_i 60)) (or (< 18 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {4866#(and (or (< 18 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 64)))} is VALID [2018-12-18 17:53:00,524 INFO L273 TraceCheckUtils]: 32: Hoare triple {4866#(and (or (< 18 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 64)))} assume i <= n * 4; {4866#(and (or (< 18 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 64)))} is VALID [2018-12-18 17:53:00,525 INFO L273 TraceCheckUtils]: 33: Hoare triple {4866#(and (or (< 18 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 18) (<= main_i 64)))} assume a[i] != 23;i := i + 4; {4867#(and (or (<= main_n 18) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} is VALID [2018-12-18 17:53:00,526 INFO L273 TraceCheckUtils]: 34: Hoare triple {4867#(and (or (<= main_n 18) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} assume i <= n * 4; {4867#(and (or (<= main_n 18) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} is VALID [2018-12-18 17:53:00,527 INFO L273 TraceCheckUtils]: 35: Hoare triple {4867#(and (or (<= main_n 18) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 18 main_n)))} assume a[i] != 23;i := i + 4; {4868#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 18 main_n)) (or (<= main_n 18) (<= main_i 72)))} is VALID [2018-12-18 17:53:00,528 INFO L273 TraceCheckUtils]: 36: Hoare triple {4868#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 18 main_n)) (or (<= main_n 18) (<= main_i 72)))} assume i <= n * 4; {4869#(and (<= main_i 72) (or (< 18 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2018-12-18 17:53:00,529 INFO L273 TraceCheckUtils]: 37: Hoare triple {4869#(and (<= main_i 72) (or (< 18 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {4870#(and (<= main_i 76) (<= 19 main_n))} is VALID [2018-12-18 17:53:00,530 INFO L273 TraceCheckUtils]: 38: Hoare triple {4870#(and (<= main_i 76) (<= 19 main_n))} assume !(i <= n * 4); {4849#false} is VALID [2018-12-18 17:53:00,539 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:53:00,539 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:53:00,539 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:53:00,539 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:53:00,539 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:53:00,539 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:53:00,539 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:53:00,549 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-18 17:53:00,549 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-18 17:53:00,560 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-18 17:53:00,560 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:53:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:53:00,577 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:53:00,587 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:53:00,588 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:53:00,593 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:53:00,593 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:53:00,596 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:53:00,596 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_22]. (and (= (store v_main_a_22 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:53:00,596 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:53:01,391 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:53:01,393 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:53:01,400 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:53:01,400 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:53:01,403 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:53:01,403 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 72))) (<= main_i 76) (<= 72 .cse0) (= 23 (select main_a .cse0)))) [2018-12-18 17:53:01,404 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 76) (<= 72 .cse0) (not (= 72 .cse0)))) [2018-12-18 17:53:01,431 INFO L273 TraceCheckUtils]: 0: Hoare triple {4848#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {4874#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,432 INFO L273 TraceCheckUtils]: 1: Hoare triple {4874#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4878#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:53:01,433 INFO L273 TraceCheckUtils]: 2: Hoare triple {4878#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {4878#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:53:01,433 INFO L273 TraceCheckUtils]: 3: Hoare triple {4878#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {4885#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,434 INFO L273 TraceCheckUtils]: 4: Hoare triple {4885#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4885#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,435 INFO L273 TraceCheckUtils]: 5: Hoare triple {4885#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4892#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:53:01,435 INFO L273 TraceCheckUtils]: 6: Hoare triple {4892#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {4892#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:53:01,436 INFO L273 TraceCheckUtils]: 7: Hoare triple {4892#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {4899#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,437 INFO L273 TraceCheckUtils]: 8: Hoare triple {4899#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4899#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,438 INFO L273 TraceCheckUtils]: 9: Hoare triple {4899#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4906#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,439 INFO L273 TraceCheckUtils]: 10: Hoare triple {4906#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4906#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,439 INFO L273 TraceCheckUtils]: 11: Hoare triple {4906#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4913#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,440 INFO L273 TraceCheckUtils]: 12: Hoare triple {4913#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4913#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,441 INFO L273 TraceCheckUtils]: 13: Hoare triple {4913#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4920#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,441 INFO L273 TraceCheckUtils]: 14: Hoare triple {4920#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4920#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,442 INFO L273 TraceCheckUtils]: 15: Hoare triple {4920#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4927#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,443 INFO L273 TraceCheckUtils]: 16: Hoare triple {4927#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4927#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,444 INFO L273 TraceCheckUtils]: 17: Hoare triple {4927#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4934#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,445 INFO L273 TraceCheckUtils]: 18: Hoare triple {4934#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4934#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,445 INFO L273 TraceCheckUtils]: 19: Hoare triple {4934#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4941#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,446 INFO L273 TraceCheckUtils]: 20: Hoare triple {4941#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4941#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,447 INFO L273 TraceCheckUtils]: 21: Hoare triple {4941#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4948#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,448 INFO L273 TraceCheckUtils]: 22: Hoare triple {4948#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4948#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,448 INFO L273 TraceCheckUtils]: 23: Hoare triple {4948#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4955#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,449 INFO L273 TraceCheckUtils]: 24: Hoare triple {4955#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4955#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,450 INFO L273 TraceCheckUtils]: 25: Hoare triple {4955#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4962#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,451 INFO L273 TraceCheckUtils]: 26: Hoare triple {4962#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4962#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,451 INFO L273 TraceCheckUtils]: 27: Hoare triple {4962#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4969#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,452 INFO L273 TraceCheckUtils]: 28: Hoare triple {4969#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4969#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,453 INFO L273 TraceCheckUtils]: 29: Hoare triple {4969#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4976#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,453 INFO L273 TraceCheckUtils]: 30: Hoare triple {4976#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4976#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,454 INFO L273 TraceCheckUtils]: 31: Hoare triple {4976#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4983#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,455 INFO L273 TraceCheckUtils]: 32: Hoare triple {4983#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4983#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,456 INFO L273 TraceCheckUtils]: 33: Hoare triple {4983#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4990#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,456 INFO L273 TraceCheckUtils]: 34: Hoare triple {4990#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {4990#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,457 INFO L273 TraceCheckUtils]: 35: Hoare triple {4990#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4997#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,458 INFO L273 TraceCheckUtils]: 36: Hoare triple {4997#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5001#(and (= main_i 72) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:01,459 INFO L273 TraceCheckUtils]: 37: Hoare triple {5001#(and (= main_i 72) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {4870#(and (<= main_i 76) (<= 19 main_n))} is VALID [2018-12-18 17:53:01,460 INFO L273 TraceCheckUtils]: 38: Hoare triple {4870#(and (<= main_i 76) (<= 19 main_n))} assume !(i <= n * 4); {4849#false} is VALID [2018-12-18 17:53:01,464 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:53:01,465 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:53:03,119 INFO L273 TraceCheckUtils]: 38: Hoare triple {5008#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {4849#false} is VALID [2018-12-18 17:53:03,120 INFO L273 TraceCheckUtils]: 37: Hoare triple {5012#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {5008#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:53:03,121 INFO L273 TraceCheckUtils]: 36: Hoare triple {5016#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {5012#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:53:03,122 INFO L273 TraceCheckUtils]: 35: Hoare triple {5020#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {5016#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:53:03,122 INFO L273 TraceCheckUtils]: 34: Hoare triple {5020#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {5020#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:53:03,123 INFO L273 TraceCheckUtils]: 33: Hoare triple {5027#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {5020#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:53:03,124 INFO L273 TraceCheckUtils]: 32: Hoare triple {5027#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {5027#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:53:03,125 INFO L273 TraceCheckUtils]: 31: Hoare triple {5034#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {5027#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:53:03,126 INFO L273 TraceCheckUtils]: 30: Hoare triple {5034#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {5034#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:53:03,127 INFO L273 TraceCheckUtils]: 29: Hoare triple {5041#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {5034#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:53:03,127 INFO L273 TraceCheckUtils]: 28: Hoare triple {5041#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {5041#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:53:03,128 INFO L273 TraceCheckUtils]: 27: Hoare triple {5048#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5041#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:53:03,129 INFO L273 TraceCheckUtils]: 26: Hoare triple {5048#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {5048#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:53:03,130 INFO L273 TraceCheckUtils]: 25: Hoare triple {5055#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {5048#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:53:03,130 INFO L273 TraceCheckUtils]: 24: Hoare triple {5055#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {5055#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:53:03,132 INFO L273 TraceCheckUtils]: 23: Hoare triple {5062#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5055#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:53:03,132 INFO L273 TraceCheckUtils]: 22: Hoare triple {5062#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {5062#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:53:03,133 INFO L273 TraceCheckUtils]: 21: Hoare triple {5069#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5062#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:53:03,134 INFO L273 TraceCheckUtils]: 20: Hoare triple {5069#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {5069#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:53:03,135 INFO L273 TraceCheckUtils]: 19: Hoare triple {5076#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5069#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:53:03,135 INFO L273 TraceCheckUtils]: 18: Hoare triple {5076#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {5076#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:53:03,136 INFO L273 TraceCheckUtils]: 17: Hoare triple {5083#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {5076#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:53:03,137 INFO L273 TraceCheckUtils]: 16: Hoare triple {5083#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {5083#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:53:03,138 INFO L273 TraceCheckUtils]: 15: Hoare triple {5090#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5083#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:53:03,139 INFO L273 TraceCheckUtils]: 14: Hoare triple {5090#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {5090#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:53:03,140 INFO L273 TraceCheckUtils]: 13: Hoare triple {5097#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5090#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:53:03,140 INFO L273 TraceCheckUtils]: 12: Hoare triple {5097#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {5097#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:53:03,141 INFO L273 TraceCheckUtils]: 11: Hoare triple {5104#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {5097#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:53:03,142 INFO L273 TraceCheckUtils]: 10: Hoare triple {5104#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {5104#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:53:03,143 INFO L273 TraceCheckUtils]: 9: Hoare triple {5111#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5104#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:53:03,144 INFO L273 TraceCheckUtils]: 8: Hoare triple {5111#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {5111#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:53:03,145 INFO L273 TraceCheckUtils]: 7: Hoare triple {5118#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {5111#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:53:03,145 INFO L273 TraceCheckUtils]: 6: Hoare triple {5118#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {5118#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:53:03,146 INFO L273 TraceCheckUtils]: 5: Hoare triple {5125#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {5118#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:53:03,147 INFO L273 TraceCheckUtils]: 4: Hoare triple {5125#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {5125#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:53:03,148 INFO L273 TraceCheckUtils]: 3: Hoare triple {5132#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {5125#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:53:03,149 INFO L273 TraceCheckUtils]: 2: Hoare triple {5132#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {5132#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:53:03,150 INFO L273 TraceCheckUtils]: 1: Hoare triple {5139#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {5132#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:53:03,151 INFO L273 TraceCheckUtils]: 0: Hoare triple {4848#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {5139#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:53:03,158 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:53:03,176 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:53:03,176 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 62 [2018-12-18 17:53:03,177 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:53:03,177 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 39 [2018-12-18 17:53:03,177 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:53:03,177 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 43 states. [2018-12-18 17:53:03,310 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 77 edges. 77 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:53:03,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-12-18 17:53:03,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-12-18 17:53:03,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=554, Invalid=3478, Unknown=0, NotChecked=0, Total=4032 [2018-12-18 17:53:03,313 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 43 states. [2018-12-18 17:53:06,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:53:06,219 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2018-12-18 17:53:06,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-12-18 17:53:06,219 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 39 [2018-12-18 17:53:06,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:53:06,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-18 17:53:06,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 44 transitions. [2018-12-18 17:53:06,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-18 17:53:06,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 44 transitions. [2018-12-18 17:53:06,221 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states and 44 transitions. [2018-12-18 17:53:06,300 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:53:06,301 INFO L225 Difference]: With dead ends: 44 [2018-12-18 17:53:06,301 INFO L226 Difference]: Without dead ends: 43 [2018-12-18 17:53:06,303 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 920 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=554, Invalid=3478, Unknown=0, NotChecked=0, Total=4032 [2018-12-18 17:53:06,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-18 17:53:06,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2018-12-18 17:53:06,352 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:53:06,353 INFO L82 GeneralOperation]: Start isEquivalent. First operand 43 states. Second operand 42 states. [2018-12-18 17:53:06,353 INFO L74 IsIncluded]: Start isIncluded. First operand 43 states. Second operand 42 states. [2018-12-18 17:53:06,353 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 42 states. [2018-12-18 17:53:06,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:53:06,354 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-12-18 17:53:06,355 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2018-12-18 17:53:06,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:53:06,355 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:53:06,356 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 43 states. [2018-12-18 17:53:06,356 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 43 states. [2018-12-18 17:53:06,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:53:06,357 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-12-18 17:53:06,357 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2018-12-18 17:53:06,357 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:53:06,357 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:53:06,358 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:53:06,358 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:53:06,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-18 17:53:06,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2018-12-18 17:53:06,359 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 39 [2018-12-18 17:53:06,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:53:06,359 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2018-12-18 17:53:06,359 INFO L481 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-12-18 17:53:06,359 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2018-12-18 17:53:06,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-12-18 17:53:06,360 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:53:06,360 INFO L402 BasicCegarLoop]: trace histogram [20, 19, 1, 1] [2018-12-18 17:53:06,360 INFO L423 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:53:06,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:53:06,361 INFO L82 PathProgramCache]: Analyzing trace with hash 264605766, now seen corresponding path program 19 times [2018-12-18 17:53:06,361 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:53:06,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:53:06,361 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:53:06,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:53:06,362 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:53:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:53:06,758 WARN L181 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-12-18 17:53:07,984 INFO L273 TraceCheckUtils]: 0: Hoare triple {5355#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {5357#(and (or (< 19 main_n) (<= 0 main_i)) (or (<= main_n 19) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:07,985 INFO L273 TraceCheckUtils]: 1: Hoare triple {5357#(and (or (< 19 main_n) (<= 0 main_i)) (or (<= main_n 19) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5358#(and (or (<= main_n 19) (<= main_i 4)) (or (< 19 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:07,986 INFO L273 TraceCheckUtils]: 2: Hoare triple {5358#(and (or (<= main_n 19) (<= main_i 4)) (or (< 19 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5358#(and (or (<= main_n 19) (<= main_i 4)) (or (< 19 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:07,987 INFO L273 TraceCheckUtils]: 3: Hoare triple {5358#(and (or (<= main_n 19) (<= main_i 4)) (or (< 19 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5359#(and (or (< 19 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:07,988 INFO L273 TraceCheckUtils]: 4: Hoare triple {5359#(and (or (< 19 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5359#(and (or (< 19 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:07,989 INFO L273 TraceCheckUtils]: 5: Hoare triple {5359#(and (or (< 19 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5360#(and (or (<= main_n 19) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (< 19 main_n) (<= 12 main_i)))} is VALID [2018-12-18 17:53:07,990 INFO L273 TraceCheckUtils]: 6: Hoare triple {5360#(and (or (<= main_n 19) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (< 19 main_n) (<= 12 main_i)))} assume i <= n * 4; {5360#(and (or (<= main_n 19) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (< 19 main_n) (<= 12 main_i)))} is VALID [2018-12-18 17:53:07,991 INFO L273 TraceCheckUtils]: 7: Hoare triple {5360#(and (or (<= main_n 19) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (< 19 main_n) (<= 12 main_i)))} assume a[i] != 23;i := i + 4; {5361#(and (or (< 19 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 16)))} is VALID [2018-12-18 17:53:07,992 INFO L273 TraceCheckUtils]: 8: Hoare triple {5361#(and (or (< 19 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 16)))} assume i <= n * 4; {5361#(and (or (< 19 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 16)))} is VALID [2018-12-18 17:53:07,993 INFO L273 TraceCheckUtils]: 9: Hoare triple {5361#(and (or (< 19 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {5362#(and (or (<= main_n 19) (<= main_i 20)) (or (< 19 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:07,993 INFO L273 TraceCheckUtils]: 10: Hoare triple {5362#(and (or (<= main_n 19) (<= main_i 20)) (or (< 19 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5362#(and (or (<= main_n 19) (<= main_i 20)) (or (< 19 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:07,994 INFO L273 TraceCheckUtils]: 11: Hoare triple {5362#(and (or (<= main_n 19) (<= main_i 20)) (or (< 19 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5363#(and (or (< 19 main_n) (<= 24 main_i)) (or (<= main_n 19) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:07,995 INFO L273 TraceCheckUtils]: 12: Hoare triple {5363#(and (or (< 19 main_n) (<= 24 main_i)) (or (<= main_n 19) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5363#(and (or (< 19 main_n) (<= 24 main_i)) (or (<= main_n 19) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:07,996 INFO L273 TraceCheckUtils]: 13: Hoare triple {5363#(and (or (< 19 main_n) (<= 24 main_i)) (or (<= main_n 19) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5364#(and (or (<= main_n 19) (<= main_i 28)) (or (< 19 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:07,997 INFO L273 TraceCheckUtils]: 14: Hoare triple {5364#(and (or (<= main_n 19) (<= main_i 28)) (or (< 19 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5364#(and (or (<= main_n 19) (<= main_i 28)) (or (< 19 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:07,998 INFO L273 TraceCheckUtils]: 15: Hoare triple {5364#(and (or (<= main_n 19) (<= main_i 28)) (or (< 19 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5365#(and (or (< 19 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 19)))} is VALID [2018-12-18 17:53:07,999 INFO L273 TraceCheckUtils]: 16: Hoare triple {5365#(and (or (< 19 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 19)))} assume i <= n * 4; {5365#(and (or (< 19 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 19)))} is VALID [2018-12-18 17:53:08,000 INFO L273 TraceCheckUtils]: 17: Hoare triple {5365#(and (or (< 19 main_n) (<= 32 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 19)))} assume a[i] != 23;i := i + 4; {5366#(and (or (<= main_i 36) (<= main_n 19)) (or (< 19 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:08,001 INFO L273 TraceCheckUtils]: 18: Hoare triple {5366#(and (or (<= main_i 36) (<= main_n 19)) (or (< 19 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5366#(and (or (<= main_i 36) (<= main_n 19)) (or (< 19 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:08,002 INFO L273 TraceCheckUtils]: 19: Hoare triple {5366#(and (or (<= main_i 36) (<= main_n 19)) (or (< 19 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5367#(and (or (< 19 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:08,002 INFO L273 TraceCheckUtils]: 20: Hoare triple {5367#(and (or (< 19 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5367#(and (or (< 19 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:08,004 INFO L273 TraceCheckUtils]: 21: Hoare triple {5367#(and (or (< 19 main_n) (<= 40 main_i)) (or (<= main_i 40) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5368#(and (or (<= main_n 19) (<= main_i 44)) (or (< 19 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:08,004 INFO L273 TraceCheckUtils]: 22: Hoare triple {5368#(and (or (<= main_n 19) (<= main_i 44)) (or (< 19 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5368#(and (or (<= main_n 19) (<= main_i 44)) (or (< 19 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:08,005 INFO L273 TraceCheckUtils]: 23: Hoare triple {5368#(and (or (<= main_n 19) (<= main_i 44)) (or (< 19 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5369#(and (or (<= main_n 19) (<= main_i 48)) (or (< 19 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:08,006 INFO L273 TraceCheckUtils]: 24: Hoare triple {5369#(and (or (<= main_n 19) (<= main_i 48)) (or (< 19 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5369#(and (or (<= main_n 19) (<= main_i 48)) (or (< 19 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:08,007 INFO L273 TraceCheckUtils]: 25: Hoare triple {5369#(and (or (<= main_n 19) (<= main_i 48)) (or (< 19 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5370#(and (or (< 19 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:08,008 INFO L273 TraceCheckUtils]: 26: Hoare triple {5370#(and (or (< 19 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5370#(and (or (< 19 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:08,009 INFO L273 TraceCheckUtils]: 27: Hoare triple {5370#(and (or (< 19 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 19)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5371#(and (or (<= main_n 19) (<= main_i 56)) (or (< 19 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:08,010 INFO L273 TraceCheckUtils]: 28: Hoare triple {5371#(and (or (<= main_n 19) (<= main_i 56)) (or (< 19 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5371#(and (or (<= main_n 19) (<= main_i 56)) (or (< 19 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:08,011 INFO L273 TraceCheckUtils]: 29: Hoare triple {5371#(and (or (<= main_n 19) (<= main_i 56)) (or (< 19 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5372#(and (or (< 19 main_n) (<= 60 main_i)) (or (<= main_n 19) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:08,012 INFO L273 TraceCheckUtils]: 30: Hoare triple {5372#(and (or (< 19 main_n) (<= 60 main_i)) (or (<= main_n 19) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5372#(and (or (< 19 main_n) (<= 60 main_i)) (or (<= main_n 19) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:08,013 INFO L273 TraceCheckUtils]: 31: Hoare triple {5372#(and (or (< 19 main_n) (<= 60 main_i)) (or (<= main_n 19) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5373#(and (or (< 19 main_n) (<= 64 main_i)) (or (<= main_n 19) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:08,013 INFO L273 TraceCheckUtils]: 32: Hoare triple {5373#(and (or (< 19 main_n) (<= 64 main_i)) (or (<= main_n 19) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5373#(and (or (< 19 main_n) (<= 64 main_i)) (or (<= main_n 19) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:08,014 INFO L273 TraceCheckUtils]: 33: Hoare triple {5373#(and (or (< 19 main_n) (<= 64 main_i)) (or (<= main_n 19) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5374#(and (or (< 19 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 68)))} is VALID [2018-12-18 17:53:08,015 INFO L273 TraceCheckUtils]: 34: Hoare triple {5374#(and (or (< 19 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 68)))} assume i <= n * 4; {5374#(and (or (< 19 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 68)))} is VALID [2018-12-18 17:53:08,016 INFO L273 TraceCheckUtils]: 35: Hoare triple {5374#(and (or (< 19 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 19) (<= main_i 68)))} assume a[i] != 23;i := i + 4; {5375#(and (or (<= main_n 19) (<= main_i 72)) (or (< 19 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:08,017 INFO L273 TraceCheckUtils]: 36: Hoare triple {5375#(and (or (<= main_n 19) (<= main_i 72)) (or (< 19 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5375#(and (or (<= main_n 19) (<= main_i 72)) (or (< 19 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:08,018 INFO L273 TraceCheckUtils]: 37: Hoare triple {5375#(and (or (<= main_n 19) (<= main_i 72)) (or (< 19 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5376#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 76) (<= main_n 19)) (or (< 19 main_n) (<= (* 4 main_n) main_i)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2018-12-18 17:53:08,019 INFO L273 TraceCheckUtils]: 38: Hoare triple {5376#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 76) (<= main_n 19)) (or (< 19 main_n) (<= (* 4 main_n) main_i)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {5377#(and (or (= (* 4 main_n) main_i) (and (<= main_i 76) (< 19 main_n))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2018-12-18 17:53:08,020 INFO L273 TraceCheckUtils]: 39: Hoare triple {5377#(and (or (= (* 4 main_n) main_i) (and (<= main_i 76) (< 19 main_n))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume a[i] != 23;i := i + 4; {5378#(and (<= 20 main_n) (<= main_i 80))} is VALID [2018-12-18 17:53:08,021 INFO L273 TraceCheckUtils]: 40: Hoare triple {5378#(and (<= 20 main_n) (<= main_i 80))} assume !(i <= n * 4); {5356#false} is VALID [2018-12-18 17:53:08,030 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:53:08,030 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:53:08,031 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:53:08,031 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:53:08,031 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:53:08,031 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:53:08,031 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:53:08,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:53:08,040 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-18 17:53:08,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:53:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:53:08,064 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:53:08,078 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:53:08,079 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:53:08,087 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:53:08,087 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:53:08,089 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:53:08,089 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_23]. (and (= main_i 0) (= (store v_main_a_23 (* 4 main_n) 23) main_a)) [2018-12-18 17:53:08,089 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:53:09,035 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:53:09,037 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:53:09,043 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:53:09,043 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:53:09,046 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:53:09,046 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 76 .cse0) (not (= (select main_a 76) 23)) (= 23 (select main_a .cse0)) (<= main_i 80))) [2018-12-18 17:53:09,046 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 76 .cse0) (not (= 76 .cse0)) (<= main_i 80))) [2018-12-18 17:53:09,074 INFO L273 TraceCheckUtils]: 0: Hoare triple {5355#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {5382#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,075 INFO L273 TraceCheckUtils]: 1: Hoare triple {5382#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5386#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:53:09,075 INFO L273 TraceCheckUtils]: 2: Hoare triple {5386#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {5386#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:53:09,076 INFO L273 TraceCheckUtils]: 3: Hoare triple {5386#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {5393#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,076 INFO L273 TraceCheckUtils]: 4: Hoare triple {5393#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5393#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,077 INFO L273 TraceCheckUtils]: 5: Hoare triple {5393#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5400#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:53:09,077 INFO L273 TraceCheckUtils]: 6: Hoare triple {5400#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {5400#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:53:09,078 INFO L273 TraceCheckUtils]: 7: Hoare triple {5400#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {5407#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,079 INFO L273 TraceCheckUtils]: 8: Hoare triple {5407#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5407#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,079 INFO L273 TraceCheckUtils]: 9: Hoare triple {5407#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5414#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,080 INFO L273 TraceCheckUtils]: 10: Hoare triple {5414#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5414#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,081 INFO L273 TraceCheckUtils]: 11: Hoare triple {5414#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5421#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,081 INFO L273 TraceCheckUtils]: 12: Hoare triple {5421#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5421#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,082 INFO L273 TraceCheckUtils]: 13: Hoare triple {5421#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5428#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,083 INFO L273 TraceCheckUtils]: 14: Hoare triple {5428#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5428#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,084 INFO L273 TraceCheckUtils]: 15: Hoare triple {5428#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5435#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,084 INFO L273 TraceCheckUtils]: 16: Hoare triple {5435#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5435#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,085 INFO L273 TraceCheckUtils]: 17: Hoare triple {5435#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5442#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,086 INFO L273 TraceCheckUtils]: 18: Hoare triple {5442#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5442#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,086 INFO L273 TraceCheckUtils]: 19: Hoare triple {5442#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5449#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,087 INFO L273 TraceCheckUtils]: 20: Hoare triple {5449#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5449#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,088 INFO L273 TraceCheckUtils]: 21: Hoare triple {5449#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5456#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,088 INFO L273 TraceCheckUtils]: 22: Hoare triple {5456#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5456#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,089 INFO L273 TraceCheckUtils]: 23: Hoare triple {5456#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5463#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,090 INFO L273 TraceCheckUtils]: 24: Hoare triple {5463#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5463#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,091 INFO L273 TraceCheckUtils]: 25: Hoare triple {5463#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5470#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,091 INFO L273 TraceCheckUtils]: 26: Hoare triple {5470#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5470#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,092 INFO L273 TraceCheckUtils]: 27: Hoare triple {5470#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5477#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,093 INFO L273 TraceCheckUtils]: 28: Hoare triple {5477#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5477#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,093 INFO L273 TraceCheckUtils]: 29: Hoare triple {5477#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5484#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,094 INFO L273 TraceCheckUtils]: 30: Hoare triple {5484#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5484#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,095 INFO L273 TraceCheckUtils]: 31: Hoare triple {5484#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5491#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,096 INFO L273 TraceCheckUtils]: 32: Hoare triple {5491#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5491#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,096 INFO L273 TraceCheckUtils]: 33: Hoare triple {5491#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5498#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,097 INFO L273 TraceCheckUtils]: 34: Hoare triple {5498#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5498#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,098 INFO L273 TraceCheckUtils]: 35: Hoare triple {5498#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5505#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,099 INFO L273 TraceCheckUtils]: 36: Hoare triple {5505#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5505#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,099 INFO L273 TraceCheckUtils]: 37: Hoare triple {5505#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5512#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,100 INFO L273 TraceCheckUtils]: 38: Hoare triple {5512#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5516#(and (= main_i 76) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:09,101 INFO L273 TraceCheckUtils]: 39: Hoare triple {5516#(and (= main_i 76) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5378#(and (<= 20 main_n) (<= main_i 80))} is VALID [2018-12-18 17:53:09,102 INFO L273 TraceCheckUtils]: 40: Hoare triple {5378#(and (<= 20 main_n) (<= main_i 80))} assume !(i <= n * 4); {5356#false} is VALID [2018-12-18 17:53:09,107 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:53:09,107 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:53:10,492 INFO L273 TraceCheckUtils]: 40: Hoare triple {5523#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {5356#false} is VALID [2018-12-18 17:53:10,493 INFO L273 TraceCheckUtils]: 39: Hoare triple {5527#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {5523#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:53:10,494 INFO L273 TraceCheckUtils]: 38: Hoare triple {5531#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {5527#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:53:10,495 INFO L273 TraceCheckUtils]: 37: Hoare triple {5535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {5531#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:53:10,495 INFO L273 TraceCheckUtils]: 36: Hoare triple {5535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {5535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:53:10,496 INFO L273 TraceCheckUtils]: 35: Hoare triple {5542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {5535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:53:10,497 INFO L273 TraceCheckUtils]: 34: Hoare triple {5542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {5542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:53:10,498 INFO L273 TraceCheckUtils]: 33: Hoare triple {5549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {5542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:53:10,498 INFO L273 TraceCheckUtils]: 32: Hoare triple {5549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {5549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:53:10,499 INFO L273 TraceCheckUtils]: 31: Hoare triple {5556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {5549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:53:10,500 INFO L273 TraceCheckUtils]: 30: Hoare triple {5556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {5556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:53:10,501 INFO L273 TraceCheckUtils]: 29: Hoare triple {5563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:53:10,502 INFO L273 TraceCheckUtils]: 28: Hoare triple {5563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {5563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:53:10,503 INFO L273 TraceCheckUtils]: 27: Hoare triple {5570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {5563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:53:10,503 INFO L273 TraceCheckUtils]: 26: Hoare triple {5570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {5570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:53:10,504 INFO L273 TraceCheckUtils]: 25: Hoare triple {5577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:53:10,505 INFO L273 TraceCheckUtils]: 24: Hoare triple {5577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {5577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:53:10,506 INFO L273 TraceCheckUtils]: 23: Hoare triple {5584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:53:10,506 INFO L273 TraceCheckUtils]: 22: Hoare triple {5584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {5584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:53:10,507 INFO L273 TraceCheckUtils]: 21: Hoare triple {5591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:53:10,508 INFO L273 TraceCheckUtils]: 20: Hoare triple {5591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {5591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:53:10,509 INFO L273 TraceCheckUtils]: 19: Hoare triple {5598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {5591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:53:10,510 INFO L273 TraceCheckUtils]: 18: Hoare triple {5598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {5598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:53:10,511 INFO L273 TraceCheckUtils]: 17: Hoare triple {5605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:53:10,511 INFO L273 TraceCheckUtils]: 16: Hoare triple {5605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {5605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:53:10,512 INFO L273 TraceCheckUtils]: 15: Hoare triple {5612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:53:10,513 INFO L273 TraceCheckUtils]: 14: Hoare triple {5612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {5612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:53:10,514 INFO L273 TraceCheckUtils]: 13: Hoare triple {5619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {5612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:53:10,515 INFO L273 TraceCheckUtils]: 12: Hoare triple {5619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {5619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:53:10,516 INFO L273 TraceCheckUtils]: 11: Hoare triple {5626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {5619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:53:10,516 INFO L273 TraceCheckUtils]: 10: Hoare triple {5626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {5626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:53:10,517 INFO L273 TraceCheckUtils]: 9: Hoare triple {5633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {5626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:53:10,518 INFO L273 TraceCheckUtils]: 8: Hoare triple {5633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {5633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:53:10,519 INFO L273 TraceCheckUtils]: 7: Hoare triple {5640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {5633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:53:10,520 INFO L273 TraceCheckUtils]: 6: Hoare triple {5640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {5640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:53:10,521 INFO L273 TraceCheckUtils]: 5: Hoare triple {5647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {5640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:53:10,521 INFO L273 TraceCheckUtils]: 4: Hoare triple {5647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {5647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:53:10,522 INFO L273 TraceCheckUtils]: 3: Hoare triple {5654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {5647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:53:10,523 INFO L273 TraceCheckUtils]: 2: Hoare triple {5654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {5654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:53:10,524 INFO L273 TraceCheckUtils]: 1: Hoare triple {5661#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {5654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:53:10,525 INFO L273 TraceCheckUtils]: 0: Hoare triple {5355#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {5661#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:53:10,532 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:53:10,551 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:53:10,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 65 [2018-12-18 17:53:10,551 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:53:10,552 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 41 [2018-12-18 17:53:10,552 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:53:10,552 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 45 states. [2018-12-18 17:53:10,645 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 81 edges. 81 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:53:10,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-12-18 17:53:10,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-12-18 17:53:10,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=602, Invalid=3820, Unknown=0, NotChecked=0, Total=4422 [2018-12-18 17:53:10,647 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand 45 states. [2018-12-18 17:53:14,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:53:14,125 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2018-12-18 17:53:14,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-12-18 17:53:14,125 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 41 [2018-12-18 17:53:14,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:53:14,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-12-18 17:53:14,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 46 transitions. [2018-12-18 17:53:14,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-12-18 17:53:14,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 46 transitions. [2018-12-18 17:53:14,127 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 24 states and 46 transitions. [2018-12-18 17:53:14,174 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:53:14,175 INFO L225 Difference]: With dead ends: 46 [2018-12-18 17:53:14,175 INFO L226 Difference]: Without dead ends: 45 [2018-12-18 17:53:14,176 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1008 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=602, Invalid=3820, Unknown=0, NotChecked=0, Total=4422 [2018-12-18 17:53:14,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-18 17:53:14,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2018-12-18 17:53:14,229 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:53:14,229 INFO L82 GeneralOperation]: Start isEquivalent. First operand 45 states. Second operand 44 states. [2018-12-18 17:53:14,229 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 44 states. [2018-12-18 17:53:14,229 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 44 states. [2018-12-18 17:53:14,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:53:14,231 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2018-12-18 17:53:14,231 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2018-12-18 17:53:14,231 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:53:14,231 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:53:14,231 INFO L74 IsIncluded]: Start isIncluded. First operand 44 states. Second operand 45 states. [2018-12-18 17:53:14,231 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 45 states. [2018-12-18 17:53:14,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:53:14,232 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2018-12-18 17:53:14,232 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2018-12-18 17:53:14,233 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:53:14,233 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:53:14,233 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:53:14,233 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:53:14,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-18 17:53:14,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2018-12-18 17:53:14,234 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 41 [2018-12-18 17:53:14,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:53:14,234 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2018-12-18 17:53:14,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-12-18 17:53:14,235 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2018-12-18 17:53:14,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-12-18 17:53:14,235 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:53:14,235 INFO L402 BasicCegarLoop]: trace histogram [21, 20, 1, 1] [2018-12-18 17:53:14,235 INFO L423 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:53:14,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:53:14,236 INFO L82 PathProgramCache]: Analyzing trace with hash 883071752, now seen corresponding path program 20 times [2018-12-18 17:53:14,236 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:53:14,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:53:14,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:53:14,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:53:14,237 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:53:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:53:14,595 WARN L181 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-12-18 17:53:15,470 INFO L273 TraceCheckUtils]: 0: Hoare triple {5887#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {5889#(and (or (<= main_i 0) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 0 main_i)))} is VALID [2018-12-18 17:53:15,472 INFO L273 TraceCheckUtils]: 1: Hoare triple {5889#(and (or (<= main_i 0) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 0 main_i)))} assume a[i] != 23;i := i + 4; {5890#(and (or (<= main_n 20) (<= main_i 4)) (or (< 20 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,473 INFO L273 TraceCheckUtils]: 2: Hoare triple {5890#(and (or (<= main_n 20) (<= main_i 4)) (or (< 20 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5890#(and (or (<= main_n 20) (<= main_i 4)) (or (< 20 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,474 INFO L273 TraceCheckUtils]: 3: Hoare triple {5890#(and (or (<= main_n 20) (<= main_i 4)) (or (< 20 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5891#(and (or (<= main_i 8) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 8 main_i)))} is VALID [2018-12-18 17:53:15,474 INFO L273 TraceCheckUtils]: 4: Hoare triple {5891#(and (or (<= main_i 8) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 8 main_i)))} assume i <= n * 4; {5891#(and (or (<= main_i 8) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 8 main_i)))} is VALID [2018-12-18 17:53:15,476 INFO L273 TraceCheckUtils]: 5: Hoare triple {5891#(and (or (<= main_i 8) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 8 main_i)))} assume a[i] != 23;i := i + 4; {5892#(and (or (<= main_n 20) (<= main_i 12)) (or (< 20 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,476 INFO L273 TraceCheckUtils]: 6: Hoare triple {5892#(and (or (<= main_n 20) (<= main_i 12)) (or (< 20 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5892#(and (or (<= main_n 20) (<= main_i 12)) (or (< 20 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,477 INFO L273 TraceCheckUtils]: 7: Hoare triple {5892#(and (or (<= main_n 20) (<= main_i 12)) (or (< 20 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5893#(and (or (< 20 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 16)))} is VALID [2018-12-18 17:53:15,478 INFO L273 TraceCheckUtils]: 8: Hoare triple {5893#(and (or (< 20 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 16)))} assume i <= n * 4; {5893#(and (or (< 20 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 16)))} is VALID [2018-12-18 17:53:15,479 INFO L273 TraceCheckUtils]: 9: Hoare triple {5893#(and (or (< 20 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {5894#(and (or (<= main_i 20) (<= main_n 20)) (or (< 20 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,480 INFO L273 TraceCheckUtils]: 10: Hoare triple {5894#(and (or (<= main_i 20) (<= main_n 20)) (or (< 20 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5894#(and (or (<= main_i 20) (<= main_n 20)) (or (< 20 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,481 INFO L273 TraceCheckUtils]: 11: Hoare triple {5894#(and (or (<= main_i 20) (<= main_n 20)) (or (< 20 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5895#(and (or (< 20 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,482 INFO L273 TraceCheckUtils]: 12: Hoare triple {5895#(and (or (< 20 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5895#(and (or (< 20 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,483 INFO L273 TraceCheckUtils]: 13: Hoare triple {5895#(and (or (< 20 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5896#(and (or (< 20 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 28)))} is VALID [2018-12-18 17:53:15,484 INFO L273 TraceCheckUtils]: 14: Hoare triple {5896#(and (or (< 20 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 28)))} assume i <= n * 4; {5896#(and (or (< 20 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 28)))} is VALID [2018-12-18 17:53:15,485 INFO L273 TraceCheckUtils]: 15: Hoare triple {5896#(and (or (< 20 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 20) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {5897#(and (or (< 20 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,485 INFO L273 TraceCheckUtils]: 16: Hoare triple {5897#(and (or (< 20 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5897#(and (or (< 20 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,486 INFO L273 TraceCheckUtils]: 17: Hoare triple {5897#(and (or (< 20 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5898#(and (or (< 20 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 20)))} is VALID [2018-12-18 17:53:15,487 INFO L273 TraceCheckUtils]: 18: Hoare triple {5898#(and (or (< 20 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 20)))} assume i <= n * 4; {5898#(and (or (< 20 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 20)))} is VALID [2018-12-18 17:53:15,488 INFO L273 TraceCheckUtils]: 19: Hoare triple {5898#(and (or (< 20 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 20)))} assume a[i] != 23;i := i + 4; {5899#(and (or (<= 40 main_i) (< 20 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 20)))} is VALID [2018-12-18 17:53:15,489 INFO L273 TraceCheckUtils]: 20: Hoare triple {5899#(and (or (<= 40 main_i) (< 20 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 20)))} assume i <= n * 4; {5899#(and (or (<= 40 main_i) (< 20 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 20)))} is VALID [2018-12-18 17:53:15,490 INFO L273 TraceCheckUtils]: 21: Hoare triple {5899#(and (or (<= 40 main_i) (< 20 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 40) (<= main_n 20)))} assume a[i] != 23;i := i + 4; {5900#(and (or (< 20 main_n) (<= 44 main_i)) (or (<= main_n 20) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,491 INFO L273 TraceCheckUtils]: 22: Hoare triple {5900#(and (or (< 20 main_n) (<= 44 main_i)) (or (<= main_n 20) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5900#(and (or (< 20 main_n) (<= 44 main_i)) (or (<= main_n 20) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,492 INFO L273 TraceCheckUtils]: 23: Hoare triple {5900#(and (or (< 20 main_n) (<= 44 main_i)) (or (<= main_n 20) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5901#(and (or (< 20 main_n) (<= 48 main_i)) (or (<= main_n 20) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,493 INFO L273 TraceCheckUtils]: 24: Hoare triple {5901#(and (or (< 20 main_n) (<= 48 main_i)) (or (<= main_n 20) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5901#(and (or (< 20 main_n) (<= 48 main_i)) (or (<= main_n 20) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,494 INFO L273 TraceCheckUtils]: 25: Hoare triple {5901#(and (or (< 20 main_n) (<= 48 main_i)) (or (<= main_n 20) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5902#(and (or (<= main_i 52) (<= main_n 20)) (or (< 20 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,494 INFO L273 TraceCheckUtils]: 26: Hoare triple {5902#(and (or (<= main_i 52) (<= main_n 20)) (or (< 20 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5902#(and (or (<= main_i 52) (<= main_n 20)) (or (< 20 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,495 INFO L273 TraceCheckUtils]: 27: Hoare triple {5902#(and (or (<= main_i 52) (<= main_n 20)) (or (< 20 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5903#(and (or (<= main_i 56) (<= main_n 20)) (or (< 20 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,496 INFO L273 TraceCheckUtils]: 28: Hoare triple {5903#(and (or (<= main_i 56) (<= main_n 20)) (or (< 20 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5903#(and (or (<= main_i 56) (<= main_n 20)) (or (< 20 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,515 INFO L273 TraceCheckUtils]: 29: Hoare triple {5903#(and (or (<= main_i 56) (<= main_n 20)) (or (< 20 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5904#(and (or (<= main_i 60) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 60 main_i)))} is VALID [2018-12-18 17:53:15,516 INFO L273 TraceCheckUtils]: 30: Hoare triple {5904#(and (or (<= main_i 60) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 60 main_i)))} assume i <= n * 4; {5904#(and (or (<= main_i 60) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 60 main_i)))} is VALID [2018-12-18 17:53:15,516 INFO L273 TraceCheckUtils]: 31: Hoare triple {5904#(and (or (<= main_i 60) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (< 20 main_n) (<= 60 main_i)))} assume a[i] != 23;i := i + 4; {5905#(and (or (< 20 main_n) (<= 64 main_i)) (or (<= main_i 64) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,517 INFO L273 TraceCheckUtils]: 32: Hoare triple {5905#(and (or (< 20 main_n) (<= 64 main_i)) (or (<= main_i 64) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5905#(and (or (< 20 main_n) (<= 64 main_i)) (or (<= main_i 64) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,518 INFO L273 TraceCheckUtils]: 33: Hoare triple {5905#(and (or (< 20 main_n) (<= 64 main_i)) (or (<= main_i 64) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5906#(and (or (< 20 main_n) (<= 68 main_i)) (or (<= main_n 20) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,518 INFO L273 TraceCheckUtils]: 34: Hoare triple {5906#(and (or (< 20 main_n) (<= 68 main_i)) (or (<= main_n 20) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5906#(and (or (< 20 main_n) (<= 68 main_i)) (or (<= main_n 20) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,519 INFO L273 TraceCheckUtils]: 35: Hoare triple {5906#(and (or (< 20 main_n) (<= 68 main_i)) (or (<= main_n 20) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5907#(and (or (<= 72 main_i) (< 20 main_n)) (or (<= main_n 20) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,520 INFO L273 TraceCheckUtils]: 36: Hoare triple {5907#(and (or (<= 72 main_i) (< 20 main_n)) (or (<= main_n 20) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5907#(and (or (<= 72 main_i) (< 20 main_n)) (or (<= main_n 20) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:15,521 INFO L273 TraceCheckUtils]: 37: Hoare triple {5907#(and (or (<= 72 main_i) (< 20 main_n)) (or (<= main_n 20) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5908#(and (or (<= main_i 76) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 20 main_n)))} is VALID [2018-12-18 17:53:15,522 INFO L273 TraceCheckUtils]: 38: Hoare triple {5908#(and (or (<= main_i 76) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 20 main_n)))} assume i <= n * 4; {5908#(and (or (<= main_i 76) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 20 main_n)))} is VALID [2018-12-18 17:53:15,523 INFO L273 TraceCheckUtils]: 39: Hoare triple {5908#(and (or (<= main_i 76) (<= main_n 20)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 20 main_n)))} assume a[i] != 23;i := i + 4; {5909#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 20) (<= main_i 80)) (or (< 20 main_n) (<= (* 4 main_n) main_i)))))} is VALID [2018-12-18 17:53:15,524 INFO L273 TraceCheckUtils]: 40: Hoare triple {5909#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 20) (<= main_i 80)) (or (< 20 main_n) (<= (* 4 main_n) main_i)))))} assume i <= n * 4; {5910#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 20 main_n) (<= main_i 80))))} is VALID [2018-12-18 17:53:15,525 INFO L273 TraceCheckUtils]: 41: Hoare triple {5910#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 20 main_n) (<= main_i 80))))} assume a[i] != 23;i := i + 4; {5911#(and (<= main_i 84) (<= 21 main_n))} is VALID [2018-12-18 17:53:15,526 INFO L273 TraceCheckUtils]: 42: Hoare triple {5911#(and (<= main_i 84) (<= 21 main_n))} assume !(i <= n * 4); {5888#false} is VALID [2018-12-18 17:53:15,535 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:53:15,535 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:53:15,535 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:53:15,536 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:53:15,536 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:53:15,536 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:53:15,536 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:53:15,544 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-18 17:53:15,545 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-18 17:53:15,572 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2018-12-18 17:53:15,572 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:53:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:53:15,582 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:53:15,597 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:53:15,599 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:53:15,606 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:53:15,606 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:53:15,608 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:53:15,608 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_24]. (and (= main_a (store v_main_a_24 (* 4 main_n) 23)) (= main_i 0)) [2018-12-18 17:53:15,608 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:53:16,708 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:53:16,709 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:53:16,716 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:53:16,716 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:53:16,719 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:53:16,719 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 84) (not (= 23 (select main_a 80))) (= 23 (select main_a .cse0)) (<= 80 .cse0))) [2018-12-18 17:53:16,719 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 84) (not (= 80 .cse0)) (<= 80 .cse0))) [2018-12-18 17:53:16,748 INFO L273 TraceCheckUtils]: 0: Hoare triple {5887#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {5915#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,749 INFO L273 TraceCheckUtils]: 1: Hoare triple {5915#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5919#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:53:16,749 INFO L273 TraceCheckUtils]: 2: Hoare triple {5919#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {5919#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:53:16,750 INFO L273 TraceCheckUtils]: 3: Hoare triple {5919#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {5926#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,751 INFO L273 TraceCheckUtils]: 4: Hoare triple {5926#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5926#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,751 INFO L273 TraceCheckUtils]: 5: Hoare triple {5926#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5933#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:53:16,752 INFO L273 TraceCheckUtils]: 6: Hoare triple {5933#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {5933#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:53:16,753 INFO L273 TraceCheckUtils]: 7: Hoare triple {5933#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {5940#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,754 INFO L273 TraceCheckUtils]: 8: Hoare triple {5940#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5940#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,754 INFO L273 TraceCheckUtils]: 9: Hoare triple {5940#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5947#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,755 INFO L273 TraceCheckUtils]: 10: Hoare triple {5947#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5947#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,756 INFO L273 TraceCheckUtils]: 11: Hoare triple {5947#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5954#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,756 INFO L273 TraceCheckUtils]: 12: Hoare triple {5954#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5954#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,757 INFO L273 TraceCheckUtils]: 13: Hoare triple {5954#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5961#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,758 INFO L273 TraceCheckUtils]: 14: Hoare triple {5961#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5961#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,759 INFO L273 TraceCheckUtils]: 15: Hoare triple {5961#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5968#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,759 INFO L273 TraceCheckUtils]: 16: Hoare triple {5968#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5968#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,760 INFO L273 TraceCheckUtils]: 17: Hoare triple {5968#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5975#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,761 INFO L273 TraceCheckUtils]: 18: Hoare triple {5975#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5975#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,762 INFO L273 TraceCheckUtils]: 19: Hoare triple {5975#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5982#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,762 INFO L273 TraceCheckUtils]: 20: Hoare triple {5982#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5982#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,763 INFO L273 TraceCheckUtils]: 21: Hoare triple {5982#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5989#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,764 INFO L273 TraceCheckUtils]: 22: Hoare triple {5989#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5989#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,765 INFO L273 TraceCheckUtils]: 23: Hoare triple {5989#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {5996#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,765 INFO L273 TraceCheckUtils]: 24: Hoare triple {5996#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {5996#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,766 INFO L273 TraceCheckUtils]: 25: Hoare triple {5996#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6003#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,767 INFO L273 TraceCheckUtils]: 26: Hoare triple {6003#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6003#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,768 INFO L273 TraceCheckUtils]: 27: Hoare triple {6003#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6010#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,768 INFO L273 TraceCheckUtils]: 28: Hoare triple {6010#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6010#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,769 INFO L273 TraceCheckUtils]: 29: Hoare triple {6010#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6017#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,770 INFO L273 TraceCheckUtils]: 30: Hoare triple {6017#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6017#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,771 INFO L273 TraceCheckUtils]: 31: Hoare triple {6017#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6024#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,771 INFO L273 TraceCheckUtils]: 32: Hoare triple {6024#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6024#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,772 INFO L273 TraceCheckUtils]: 33: Hoare triple {6024#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6031#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,773 INFO L273 TraceCheckUtils]: 34: Hoare triple {6031#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6031#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,774 INFO L273 TraceCheckUtils]: 35: Hoare triple {6031#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6038#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,774 INFO L273 TraceCheckUtils]: 36: Hoare triple {6038#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6038#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,775 INFO L273 TraceCheckUtils]: 37: Hoare triple {6038#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6045#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,776 INFO L273 TraceCheckUtils]: 38: Hoare triple {6045#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6045#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:16,776 INFO L273 TraceCheckUtils]: 39: Hoare triple {6045#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6052#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:53:16,777 INFO L273 TraceCheckUtils]: 40: Hoare triple {6052#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {6056#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:53:16,778 INFO L273 TraceCheckUtils]: 41: Hoare triple {6056#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {5911#(and (<= main_i 84) (<= 21 main_n))} is VALID [2018-12-18 17:53:16,779 INFO L273 TraceCheckUtils]: 42: Hoare triple {5911#(and (<= main_i 84) (<= 21 main_n))} assume !(i <= n * 4); {5888#false} is VALID [2018-12-18 17:53:16,786 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:53:16,786 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:53:18,428 INFO L273 TraceCheckUtils]: 42: Hoare triple {6063#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {5888#false} is VALID [2018-12-18 17:53:18,429 INFO L273 TraceCheckUtils]: 41: Hoare triple {6067#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {6063#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:53:18,430 INFO L273 TraceCheckUtils]: 40: Hoare triple {6071#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {6067#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:53:18,431 INFO L273 TraceCheckUtils]: 39: Hoare triple {6075#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {6071#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:53:18,432 INFO L273 TraceCheckUtils]: 38: Hoare triple {6075#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {6075#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:53:18,433 INFO L273 TraceCheckUtils]: 37: Hoare triple {6082#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {6075#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:53:18,433 INFO L273 TraceCheckUtils]: 36: Hoare triple {6082#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {6082#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:53:18,434 INFO L273 TraceCheckUtils]: 35: Hoare triple {6089#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {6082#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:53:18,436 INFO L273 TraceCheckUtils]: 34: Hoare triple {6089#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {6089#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:53:18,437 INFO L273 TraceCheckUtils]: 33: Hoare triple {6096#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {6089#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:53:18,437 INFO L273 TraceCheckUtils]: 32: Hoare triple {6096#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {6096#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:53:18,438 INFO L273 TraceCheckUtils]: 31: Hoare triple {6103#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6096#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:53:18,439 INFO L273 TraceCheckUtils]: 30: Hoare triple {6103#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {6103#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:53:18,440 INFO L273 TraceCheckUtils]: 29: Hoare triple {6110#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {6103#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:53:18,440 INFO L273 TraceCheckUtils]: 28: Hoare triple {6110#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {6110#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:53:18,441 INFO L273 TraceCheckUtils]: 27: Hoare triple {6117#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6110#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:53:18,442 INFO L273 TraceCheckUtils]: 26: Hoare triple {6117#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {6117#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:53:18,443 INFO L273 TraceCheckUtils]: 25: Hoare triple {6124#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6117#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:53:18,444 INFO L273 TraceCheckUtils]: 24: Hoare triple {6124#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {6124#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:53:18,445 INFO L273 TraceCheckUtils]: 23: Hoare triple {6131#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6124#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:53:18,445 INFO L273 TraceCheckUtils]: 22: Hoare triple {6131#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {6131#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:53:18,446 INFO L273 TraceCheckUtils]: 21: Hoare triple {6138#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {6131#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:53:18,447 INFO L273 TraceCheckUtils]: 20: Hoare triple {6138#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {6138#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:53:18,448 INFO L273 TraceCheckUtils]: 19: Hoare triple {6145#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6138#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:53:18,448 INFO L273 TraceCheckUtils]: 18: Hoare triple {6145#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {6145#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:53:18,450 INFO L273 TraceCheckUtils]: 17: Hoare triple {6152#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6145#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:53:18,450 INFO L273 TraceCheckUtils]: 16: Hoare triple {6152#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {6152#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:53:18,451 INFO L273 TraceCheckUtils]: 15: Hoare triple {6159#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {6152#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:53:18,452 INFO L273 TraceCheckUtils]: 14: Hoare triple {6159#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {6159#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:53:18,453 INFO L273 TraceCheckUtils]: 13: Hoare triple {6166#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6159#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:53:18,453 INFO L273 TraceCheckUtils]: 12: Hoare triple {6166#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {6166#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:53:18,454 INFO L273 TraceCheckUtils]: 11: Hoare triple {6173#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {6166#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:53:18,455 INFO L273 TraceCheckUtils]: 10: Hoare triple {6173#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {6173#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:53:18,456 INFO L273 TraceCheckUtils]: 9: Hoare triple {6180#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {6173#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:53:18,457 INFO L273 TraceCheckUtils]: 8: Hoare triple {6180#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {6180#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:53:18,458 INFO L273 TraceCheckUtils]: 7: Hoare triple {6187#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {6180#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:53:18,458 INFO L273 TraceCheckUtils]: 6: Hoare triple {6187#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {6187#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:53:18,459 INFO L273 TraceCheckUtils]: 5: Hoare triple {6194#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {6187#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:53:18,460 INFO L273 TraceCheckUtils]: 4: Hoare triple {6194#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {6194#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:53:18,461 INFO L273 TraceCheckUtils]: 3: Hoare triple {6201#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {6194#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:53:18,461 INFO L273 TraceCheckUtils]: 2: Hoare triple {6201#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {6201#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:53:18,462 INFO L273 TraceCheckUtils]: 1: Hoare triple {6208#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {6201#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:53:18,463 INFO L273 TraceCheckUtils]: 0: Hoare triple {5887#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {6208#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:53:18,472 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:53:18,492 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:53:18,492 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 68 [2018-12-18 17:53:18,492 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:53:18,492 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 43 [2018-12-18 17:53:18,493 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:53:18,493 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 47 states. [2018-12-18 17:53:18,592 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 85 edges. 85 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:53:18,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-12-18 17:53:18,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-12-18 17:53:18,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=652, Invalid=4178, Unknown=0, NotChecked=0, Total=4830 [2018-12-18 17:53:18,593 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 47 states. [2018-12-18 17:53:21,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:53:21,141 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2018-12-18 17:53:21,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-12-18 17:53:21,141 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 43 [2018-12-18 17:53:21,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:53:21,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-12-18 17:53:21,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 48 transitions. [2018-12-18 17:53:21,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-12-18 17:53:21,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 48 transitions. [2018-12-18 17:53:21,143 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 25 states and 48 transitions. [2018-12-18 17:53:21,193 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 48 edges. 48 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:53:21,193 INFO L225 Difference]: With dead ends: 48 [2018-12-18 17:53:21,194 INFO L226 Difference]: Without dead ends: 47 [2018-12-18 17:53:21,195 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1100 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=652, Invalid=4178, Unknown=0, NotChecked=0, Total=4830 [2018-12-18 17:53:21,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-12-18 17:53:21,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2018-12-18 17:53:21,370 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:53:21,370 INFO L82 GeneralOperation]: Start isEquivalent. First operand 47 states. Second operand 46 states. [2018-12-18 17:53:21,370 INFO L74 IsIncluded]: Start isIncluded. First operand 47 states. Second operand 46 states. [2018-12-18 17:53:21,370 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 46 states. [2018-12-18 17:53:21,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:53:21,371 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-12-18 17:53:21,372 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2018-12-18 17:53:21,372 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:53:21,372 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:53:21,372 INFO L74 IsIncluded]: Start isIncluded. First operand 46 states. Second operand 47 states. [2018-12-18 17:53:21,372 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 47 states. [2018-12-18 17:53:21,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:53:21,373 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-12-18 17:53:21,373 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2018-12-18 17:53:21,373 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:53:21,374 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:53:21,374 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:53:21,374 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:53:21,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-12-18 17:53:21,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2018-12-18 17:53:21,375 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 43 [2018-12-18 17:53:21,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:53:21,375 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2018-12-18 17:53:21,375 INFO L481 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-12-18 17:53:21,375 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2018-12-18 17:53:21,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-12-18 17:53:21,376 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:53:21,376 INFO L402 BasicCegarLoop]: trace histogram [22, 21, 1, 1] [2018-12-18 17:53:21,376 INFO L423 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:53:21,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:53:21,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1771569846, now seen corresponding path program 21 times [2018-12-18 17:53:21,377 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:53:21,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:53:21,377 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:53:21,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:53:21,377 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:53:21,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:53:21,765 WARN L181 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-12-18 17:53:22,716 INFO L273 TraceCheckUtils]: 0: Hoare triple {6444#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {6446#(and (or (<= main_n 21) (<= main_i 0)) (or (<= 0 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,717 INFO L273 TraceCheckUtils]: 1: Hoare triple {6446#(and (or (<= main_n 21) (<= main_i 0)) (or (<= 0 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6447#(and (or (< 21 main_n) (<= 4 main_i)) (or (<= main_n 21) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,718 INFO L273 TraceCheckUtils]: 2: Hoare triple {6447#(and (or (< 21 main_n) (<= 4 main_i)) (or (<= main_n 21) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6447#(and (or (< 21 main_n) (<= 4 main_i)) (or (<= main_n 21) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,719 INFO L273 TraceCheckUtils]: 3: Hoare triple {6447#(and (or (< 21 main_n) (<= 4 main_i)) (or (<= main_n 21) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6448#(and (or (< 21 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,720 INFO L273 TraceCheckUtils]: 4: Hoare triple {6448#(and (or (< 21 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6448#(and (or (< 21 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,721 INFO L273 TraceCheckUtils]: 5: Hoare triple {6448#(and (or (< 21 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6449#(and (or (< 21 main_n) (<= 12 main_i)) (or (<= main_n 21) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,721 INFO L273 TraceCheckUtils]: 6: Hoare triple {6449#(and (or (< 21 main_n) (<= 12 main_i)) (or (<= main_n 21) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6449#(and (or (< 21 main_n) (<= 12 main_i)) (or (<= main_n 21) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,723 INFO L273 TraceCheckUtils]: 7: Hoare triple {6449#(and (or (< 21 main_n) (<= 12 main_i)) (or (<= main_n 21) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6450#(and (or (< 21 main_n) (<= 16 main_i)) (or (<= main_n 21) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,723 INFO L273 TraceCheckUtils]: 8: Hoare triple {6450#(and (or (< 21 main_n) (<= 16 main_i)) (or (<= main_n 21) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6450#(and (or (< 21 main_n) (<= 16 main_i)) (or (<= main_n 21) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,724 INFO L273 TraceCheckUtils]: 9: Hoare triple {6450#(and (or (< 21 main_n) (<= 16 main_i)) (or (<= main_n 21) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6451#(and (or (<= main_n 21) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 20 main_i)))} is VALID [2018-12-18 17:53:22,725 INFO L273 TraceCheckUtils]: 10: Hoare triple {6451#(and (or (<= main_n 21) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 20 main_i)))} assume i <= n * 4; {6451#(and (or (<= main_n 21) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 20 main_i)))} is VALID [2018-12-18 17:53:22,726 INFO L273 TraceCheckUtils]: 11: Hoare triple {6451#(and (or (<= main_n 21) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 20 main_i)))} assume a[i] != 23;i := i + 4; {6452#(and (or (< 21 main_n) (<= 24 main_i)) (or (<= main_n 21) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,727 INFO L273 TraceCheckUtils]: 12: Hoare triple {6452#(and (or (< 21 main_n) (<= 24 main_i)) (or (<= main_n 21) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6452#(and (or (< 21 main_n) (<= 24 main_i)) (or (<= main_n 21) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,728 INFO L273 TraceCheckUtils]: 13: Hoare triple {6452#(and (or (< 21 main_n) (<= 24 main_i)) (or (<= main_n 21) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6453#(and (or (<= 28 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 21) (<= main_i 28)))} is VALID [2018-12-18 17:53:22,729 INFO L273 TraceCheckUtils]: 14: Hoare triple {6453#(and (or (<= 28 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 21) (<= main_i 28)))} assume i <= n * 4; {6453#(and (or (<= 28 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 21) (<= main_i 28)))} is VALID [2018-12-18 17:53:22,730 INFO L273 TraceCheckUtils]: 15: Hoare triple {6453#(and (or (<= 28 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 21) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {6454#(and (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 21 main_n)) (or (<= main_i 32) (<= main_n 21)))} is VALID [2018-12-18 17:53:22,731 INFO L273 TraceCheckUtils]: 16: Hoare triple {6454#(and (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 21 main_n)) (or (<= main_i 32) (<= main_n 21)))} assume i <= n * 4; {6454#(and (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 21 main_n)) (or (<= main_i 32) (<= main_n 21)))} is VALID [2018-12-18 17:53:22,732 INFO L273 TraceCheckUtils]: 17: Hoare triple {6454#(and (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 21 main_n)) (or (<= main_i 32) (<= main_n 21)))} assume a[i] != 23;i := i + 4; {6455#(and (or (<= main_i 36) (<= main_n 21)) (or (< 21 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,733 INFO L273 TraceCheckUtils]: 18: Hoare triple {6455#(and (or (<= main_i 36) (<= main_n 21)) (or (< 21 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6455#(and (or (<= main_i 36) (<= main_n 21)) (or (< 21 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,734 INFO L273 TraceCheckUtils]: 19: Hoare triple {6455#(and (or (<= main_i 36) (<= main_n 21)) (or (< 21 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6456#(and (or (<= main_i 40) (<= main_n 21)) (or (<= 40 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,735 INFO L273 TraceCheckUtils]: 20: Hoare triple {6456#(and (or (<= main_i 40) (<= main_n 21)) (or (<= 40 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6456#(and (or (<= main_i 40) (<= main_n 21)) (or (<= 40 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,736 INFO L273 TraceCheckUtils]: 21: Hoare triple {6456#(and (or (<= main_i 40) (<= main_n 21)) (or (<= 40 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6457#(and (or (<= main_n 21) (<= main_i 44)) (or (<= 44 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,736 INFO L273 TraceCheckUtils]: 22: Hoare triple {6457#(and (or (<= main_n 21) (<= main_i 44)) (or (<= 44 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6457#(and (or (<= main_n 21) (<= main_i 44)) (or (<= 44 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,737 INFO L273 TraceCheckUtils]: 23: Hoare triple {6457#(and (or (<= main_n 21) (<= main_i 44)) (or (<= 44 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6458#(and (or (<= main_n 21) (<= main_i 48)) (or (<= 48 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,738 INFO L273 TraceCheckUtils]: 24: Hoare triple {6458#(and (or (<= main_n 21) (<= main_i 48)) (or (<= 48 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6458#(and (or (<= main_n 21) (<= main_i 48)) (or (<= 48 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,739 INFO L273 TraceCheckUtils]: 25: Hoare triple {6458#(and (or (<= main_n 21) (<= main_i 48)) (or (<= 48 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6459#(and (or (< 21 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,740 INFO L273 TraceCheckUtils]: 26: Hoare triple {6459#(and (or (< 21 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6459#(and (or (< 21 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,741 INFO L273 TraceCheckUtils]: 27: Hoare triple {6459#(and (or (< 21 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 21)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6460#(and (or (<= main_n 21) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 56 main_i)))} is VALID [2018-12-18 17:53:22,742 INFO L273 TraceCheckUtils]: 28: Hoare triple {6460#(and (or (<= main_n 21) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 56 main_i)))} assume i <= n * 4; {6460#(and (or (<= main_n 21) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 56 main_i)))} is VALID [2018-12-18 17:53:22,743 INFO L273 TraceCheckUtils]: 29: Hoare triple {6460#(and (or (<= main_n 21) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 56 main_i)))} assume a[i] != 23;i := i + 4; {6461#(and (or (< 21 main_n) (<= 60 main_i)) (or (<= main_n 21) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,744 INFO L273 TraceCheckUtils]: 30: Hoare triple {6461#(and (or (< 21 main_n) (<= 60 main_i)) (or (<= main_n 21) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6461#(and (or (< 21 main_n) (<= 60 main_i)) (or (<= main_n 21) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,745 INFO L273 TraceCheckUtils]: 31: Hoare triple {6461#(and (or (< 21 main_n) (<= 60 main_i)) (or (<= main_n 21) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6462#(and (or (<= main_i 64) (<= main_n 21)) (or (< 21 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,745 INFO L273 TraceCheckUtils]: 32: Hoare triple {6462#(and (or (<= main_i 64) (<= main_n 21)) (or (< 21 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6462#(and (or (<= main_i 64) (<= main_n 21)) (or (< 21 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,746 INFO L273 TraceCheckUtils]: 33: Hoare triple {6462#(and (or (<= main_i 64) (<= main_n 21)) (or (< 21 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6463#(and (or (< 21 main_n) (<= 68 main_i)) (or (<= main_n 21) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,747 INFO L273 TraceCheckUtils]: 34: Hoare triple {6463#(and (or (< 21 main_n) (<= 68 main_i)) (or (<= main_n 21) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6463#(and (or (< 21 main_n) (<= 68 main_i)) (or (<= main_n 21) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,748 INFO L273 TraceCheckUtils]: 35: Hoare triple {6463#(and (or (< 21 main_n) (<= 68 main_i)) (or (<= main_n 21) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6464#(and (or (<= main_n 21) (<= main_i 72)) (or (<= 72 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,749 INFO L273 TraceCheckUtils]: 36: Hoare triple {6464#(and (or (<= main_n 21) (<= main_i 72)) (or (<= 72 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6464#(and (or (<= main_n 21) (<= main_i 72)) (or (<= 72 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,750 INFO L273 TraceCheckUtils]: 37: Hoare triple {6464#(and (or (<= main_n 21) (<= main_i 72)) (or (<= 72 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6465#(and (or (<= main_i 76) (<= main_n 21)) (or (<= 76 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,751 INFO L273 TraceCheckUtils]: 38: Hoare triple {6465#(and (or (<= main_i 76) (<= main_n 21)) (or (<= 76 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6465#(and (or (<= main_i 76) (<= main_n 21)) (or (<= 76 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:22,752 INFO L273 TraceCheckUtils]: 39: Hoare triple {6465#(and (or (<= main_i 76) (<= main_n 21)) (or (<= 76 main_i) (< 21 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6466#(and (or (<= main_n 21) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 80 main_i)))} is VALID [2018-12-18 17:53:22,753 INFO L273 TraceCheckUtils]: 40: Hoare triple {6466#(and (or (<= main_n 21) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 80 main_i)))} assume i <= n * 4; {6466#(and (or (<= main_n 21) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 80 main_i)))} is VALID [2018-12-18 17:53:22,754 INFO L273 TraceCheckUtils]: 41: Hoare triple {6466#(and (or (<= main_n 21) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (< 21 main_n) (<= 80 main_i)))} assume a[i] != 23;i := i + 4; {6467#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_i 84) (<= main_n 21)) (or (< 21 main_n) (<= (* 4 main_n) main_i)))))} is VALID [2018-12-18 17:53:22,755 INFO L273 TraceCheckUtils]: 42: Hoare triple {6467#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_i 84) (<= main_n 21)) (or (< 21 main_n) (<= (* 4 main_n) main_i)))))} assume i <= n * 4; {6468#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 84) (< 21 main_n))))} is VALID [2018-12-18 17:53:22,756 INFO L273 TraceCheckUtils]: 43: Hoare triple {6468#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 84) (< 21 main_n))))} assume a[i] != 23;i := i + 4; {6469#(and (<= main_i 88) (<= 22 main_n))} is VALID [2018-12-18 17:53:22,757 INFO L273 TraceCheckUtils]: 44: Hoare triple {6469#(and (<= main_i 88) (<= 22 main_n))} assume !(i <= n * 4); {6445#false} is VALID [2018-12-18 17:53:22,767 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:53:22,767 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:53:22,767 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:53:22,767 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:53:22,768 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:53:22,768 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:53:22,768 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:53:22,776 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-18 17:53:22,776 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-18 17:53:22,789 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-18 17:53:22,790 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:53:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:53:22,800 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:53:22,810 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:53:22,818 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:53:22,826 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:53:22,826 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:53:22,828 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:53:22,828 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_25]. (and (= main_i 0) (= main_a (store v_main_a_25 (* 4 main_n) 23))) [2018-12-18 17:53:22,828 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:53:23,951 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:53:23,963 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:53:23,969 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:53:23,969 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:53:23,972 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:53:23,973 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 88) (not (= 23 (select main_a 84))) (= 23 (select main_a .cse0)) (<= 84 .cse0))) [2018-12-18 17:53:23,973 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 88) (not (= 84 .cse0)) (<= 84 .cse0))) [2018-12-18 17:53:24,010 INFO L273 TraceCheckUtils]: 0: Hoare triple {6444#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {6473#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,011 INFO L273 TraceCheckUtils]: 1: Hoare triple {6473#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6477#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:53:24,012 INFO L273 TraceCheckUtils]: 2: Hoare triple {6477#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {6477#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:53:24,013 INFO L273 TraceCheckUtils]: 3: Hoare triple {6477#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {6484#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,014 INFO L273 TraceCheckUtils]: 4: Hoare triple {6484#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6484#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,015 INFO L273 TraceCheckUtils]: 5: Hoare triple {6484#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:53:24,016 INFO L273 TraceCheckUtils]: 6: Hoare triple {6491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {6491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:53:24,017 INFO L273 TraceCheckUtils]: 7: Hoare triple {6491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {6498#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,017 INFO L273 TraceCheckUtils]: 8: Hoare triple {6498#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6498#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,018 INFO L273 TraceCheckUtils]: 9: Hoare triple {6498#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6505#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,019 INFO L273 TraceCheckUtils]: 10: Hoare triple {6505#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6505#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,020 INFO L273 TraceCheckUtils]: 11: Hoare triple {6505#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6512#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,021 INFO L273 TraceCheckUtils]: 12: Hoare triple {6512#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6512#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,022 INFO L273 TraceCheckUtils]: 13: Hoare triple {6512#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6519#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,022 INFO L273 TraceCheckUtils]: 14: Hoare triple {6519#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6519#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,023 INFO L273 TraceCheckUtils]: 15: Hoare triple {6519#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6526#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,024 INFO L273 TraceCheckUtils]: 16: Hoare triple {6526#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6526#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,025 INFO L273 TraceCheckUtils]: 17: Hoare triple {6526#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6533#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,026 INFO L273 TraceCheckUtils]: 18: Hoare triple {6533#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6533#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,027 INFO L273 TraceCheckUtils]: 19: Hoare triple {6533#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6540#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,028 INFO L273 TraceCheckUtils]: 20: Hoare triple {6540#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6540#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,028 INFO L273 TraceCheckUtils]: 21: Hoare triple {6540#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6547#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,029 INFO L273 TraceCheckUtils]: 22: Hoare triple {6547#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6547#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,030 INFO L273 TraceCheckUtils]: 23: Hoare triple {6547#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6554#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,031 INFO L273 TraceCheckUtils]: 24: Hoare triple {6554#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6554#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,032 INFO L273 TraceCheckUtils]: 25: Hoare triple {6554#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6561#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,044 INFO L273 TraceCheckUtils]: 26: Hoare triple {6561#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6561#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,045 INFO L273 TraceCheckUtils]: 27: Hoare triple {6561#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6568#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,045 INFO L273 TraceCheckUtils]: 28: Hoare triple {6568#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6568#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,046 INFO L273 TraceCheckUtils]: 29: Hoare triple {6568#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6575#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,046 INFO L273 TraceCheckUtils]: 30: Hoare triple {6575#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6575#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,047 INFO L273 TraceCheckUtils]: 31: Hoare triple {6575#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6582#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,047 INFO L273 TraceCheckUtils]: 32: Hoare triple {6582#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6582#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,048 INFO L273 TraceCheckUtils]: 33: Hoare triple {6582#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6589#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,049 INFO L273 TraceCheckUtils]: 34: Hoare triple {6589#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6589#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,050 INFO L273 TraceCheckUtils]: 35: Hoare triple {6589#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6596#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,051 INFO L273 TraceCheckUtils]: 36: Hoare triple {6596#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6596#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,051 INFO L273 TraceCheckUtils]: 37: Hoare triple {6596#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6603#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,052 INFO L273 TraceCheckUtils]: 38: Hoare triple {6603#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6603#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,053 INFO L273 TraceCheckUtils]: 39: Hoare triple {6603#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6610#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:53:24,054 INFO L273 TraceCheckUtils]: 40: Hoare triple {6610#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {6610#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:53:24,055 INFO L273 TraceCheckUtils]: 41: Hoare triple {6610#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {6617#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,055 INFO L273 TraceCheckUtils]: 42: Hoare triple {6617#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {6621#(and (= main_i 84) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:24,056 INFO L273 TraceCheckUtils]: 43: Hoare triple {6621#(and (= main_i 84) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {6469#(and (<= main_i 88) (<= 22 main_n))} is VALID [2018-12-18 17:53:24,057 INFO L273 TraceCheckUtils]: 44: Hoare triple {6469#(and (<= main_i 88) (<= 22 main_n))} assume !(i <= n * 4); {6445#false} is VALID [2018-12-18 17:53:24,065 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:53:24,066 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:53:25,762 INFO L273 TraceCheckUtils]: 44: Hoare triple {6628#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {6445#false} is VALID [2018-12-18 17:53:25,763 INFO L273 TraceCheckUtils]: 43: Hoare triple {6632#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {6628#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:53:25,763 INFO L273 TraceCheckUtils]: 42: Hoare triple {6636#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {6632#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:53:25,765 INFO L273 TraceCheckUtils]: 41: Hoare triple {6640#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {6636#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:53:25,765 INFO L273 TraceCheckUtils]: 40: Hoare triple {6640#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {6640#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:53:25,766 INFO L273 TraceCheckUtils]: 39: Hoare triple {6647#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {6640#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:53:25,767 INFO L273 TraceCheckUtils]: 38: Hoare triple {6647#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {6647#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:53:25,768 INFO L273 TraceCheckUtils]: 37: Hoare triple {6654#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {6647#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:53:25,769 INFO L273 TraceCheckUtils]: 36: Hoare triple {6654#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {6654#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:53:25,770 INFO L273 TraceCheckUtils]: 35: Hoare triple {6661#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {6654#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:53:25,770 INFO L273 TraceCheckUtils]: 34: Hoare triple {6661#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {6661#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:53:25,771 INFO L273 TraceCheckUtils]: 33: Hoare triple {6668#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6661#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:53:25,772 INFO L273 TraceCheckUtils]: 32: Hoare triple {6668#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {6668#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:53:25,773 INFO L273 TraceCheckUtils]: 31: Hoare triple {6675#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {6668#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:53:25,773 INFO L273 TraceCheckUtils]: 30: Hoare triple {6675#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {6675#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:53:25,775 INFO L273 TraceCheckUtils]: 29: Hoare triple {6682#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6675#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:53:25,775 INFO L273 TraceCheckUtils]: 28: Hoare triple {6682#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {6682#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:53:25,776 INFO L273 TraceCheckUtils]: 27: Hoare triple {6689#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6682#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:53:25,777 INFO L273 TraceCheckUtils]: 26: Hoare triple {6689#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {6689#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:53:25,778 INFO L273 TraceCheckUtils]: 25: Hoare triple {6696#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6689#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:53:25,779 INFO L273 TraceCheckUtils]: 24: Hoare triple {6696#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {6696#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:53:25,780 INFO L273 TraceCheckUtils]: 23: Hoare triple {6703#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {6696#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:53:25,780 INFO L273 TraceCheckUtils]: 22: Hoare triple {6703#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {6703#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:53:25,781 INFO L273 TraceCheckUtils]: 21: Hoare triple {6710#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6703#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:53:25,782 INFO L273 TraceCheckUtils]: 20: Hoare triple {6710#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {6710#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:53:25,783 INFO L273 TraceCheckUtils]: 19: Hoare triple {6717#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6710#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:53:25,784 INFO L273 TraceCheckUtils]: 18: Hoare triple {6717#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {6717#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:53:25,785 INFO L273 TraceCheckUtils]: 17: Hoare triple {6724#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {6717#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:53:25,785 INFO L273 TraceCheckUtils]: 16: Hoare triple {6724#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {6724#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:53:25,787 INFO L273 TraceCheckUtils]: 15: Hoare triple {6731#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6724#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:53:25,787 INFO L273 TraceCheckUtils]: 14: Hoare triple {6731#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {6731#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:53:25,788 INFO L273 TraceCheckUtils]: 13: Hoare triple {6738#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {6731#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:53:25,789 INFO L273 TraceCheckUtils]: 12: Hoare triple {6738#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {6738#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:53:25,790 INFO L273 TraceCheckUtils]: 11: Hoare triple {6745#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {6738#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:53:25,790 INFO L273 TraceCheckUtils]: 10: Hoare triple {6745#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {6745#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:53:25,791 INFO L273 TraceCheckUtils]: 9: Hoare triple {6752#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {6745#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:53:25,792 INFO L273 TraceCheckUtils]: 8: Hoare triple {6752#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {6752#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:53:25,793 INFO L273 TraceCheckUtils]: 7: Hoare triple {6759#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {6752#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:53:25,793 INFO L273 TraceCheckUtils]: 6: Hoare triple {6759#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {6759#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:53:25,795 INFO L273 TraceCheckUtils]: 5: Hoare triple {6766#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {6759#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:53:25,795 INFO L273 TraceCheckUtils]: 4: Hoare triple {6766#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {6766#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:53:25,796 INFO L273 TraceCheckUtils]: 3: Hoare triple {6773#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {6766#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:53:25,797 INFO L273 TraceCheckUtils]: 2: Hoare triple {6773#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {6773#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:53:25,798 INFO L273 TraceCheckUtils]: 1: Hoare triple {6780#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {6773#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:53:25,799 INFO L273 TraceCheckUtils]: 0: Hoare triple {6444#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {6780#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:53:25,807 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:53:25,826 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:53:25,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 71 [2018-12-18 17:53:25,826 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:53:25,827 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 45 [2018-12-18 17:53:25,827 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:53:25,827 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 49 states. [2018-12-18 17:53:25,929 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 89 edges. 89 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:53:25,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-12-18 17:53:25,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-12-18 17:53:25,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=704, Invalid=4552, Unknown=0, NotChecked=0, Total=5256 [2018-12-18 17:53:25,930 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 49 states. [2018-12-18 17:53:29,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:53:29,787 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2018-12-18 17:53:29,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-12-18 17:53:29,788 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 45 [2018-12-18 17:53:29,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:53:29,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-12-18 17:53:29,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 50 transitions. [2018-12-18 17:53:29,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-12-18 17:53:29,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 50 transitions. [2018-12-18 17:53:29,790 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 26 states and 50 transitions. [2018-12-18 17:53:29,882 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 50 edges. 50 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:53:29,883 INFO L225 Difference]: With dead ends: 50 [2018-12-18 17:53:29,883 INFO L226 Difference]: Without dead ends: 49 [2018-12-18 17:53:29,884 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1196 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=704, Invalid=4552, Unknown=0, NotChecked=0, Total=5256 [2018-12-18 17:53:29,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-12-18 17:53:29,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2018-12-18 17:53:29,934 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:53:29,934 INFO L82 GeneralOperation]: Start isEquivalent. First operand 49 states. Second operand 48 states. [2018-12-18 17:53:29,934 INFO L74 IsIncluded]: Start isIncluded. First operand 49 states. Second operand 48 states. [2018-12-18 17:53:29,934 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 48 states. [2018-12-18 17:53:29,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:53:29,935 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2018-12-18 17:53:29,935 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2018-12-18 17:53:29,936 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:53:29,936 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:53:29,936 INFO L74 IsIncluded]: Start isIncluded. First operand 48 states. Second operand 49 states. [2018-12-18 17:53:29,936 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 49 states. [2018-12-18 17:53:29,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:53:29,937 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2018-12-18 17:53:29,937 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2018-12-18 17:53:29,937 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:53:29,937 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:53:29,937 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:53:29,937 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:53:29,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-12-18 17:53:29,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2018-12-18 17:53:29,938 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 45 [2018-12-18 17:53:29,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:53:29,938 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2018-12-18 17:53:29,938 INFO L481 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-12-18 17:53:29,938 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2018-12-18 17:53:29,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-18 17:53:29,938 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:53:29,939 INFO L402 BasicCegarLoop]: trace histogram [23, 22, 1, 1] [2018-12-18 17:53:29,939 INFO L423 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:53:29,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:53:29,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1671571700, now seen corresponding path program 22 times [2018-12-18 17:53:29,939 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:53:29,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:53:29,940 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:53:29,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:53:29,940 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:53:29,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:53:30,347 WARN L181 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-12-18 17:53:30,790 WARN L181 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-12-18 17:53:31,275 WARN L181 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-12-18 17:53:32,508 INFO L273 TraceCheckUtils]: 0: Hoare triple {7026#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {7028#(and (or (<= main_i 0) (<= main_n 22)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2018-12-18 17:53:32,510 INFO L273 TraceCheckUtils]: 1: Hoare triple {7028#(and (or (<= main_i 0) (<= main_n 22)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7029#(and (or (<= main_n 22) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 22 main_n)))} is VALID [2018-12-18 17:53:32,510 INFO L273 TraceCheckUtils]: 2: Hoare triple {7029#(and (or (<= main_n 22) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 22 main_n)))} assume i <= n * 4; {7029#(and (or (<= main_n 22) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 22 main_n)))} is VALID [2018-12-18 17:53:32,511 INFO L273 TraceCheckUtils]: 3: Hoare triple {7029#(and (or (<= main_n 22) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7030#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 8) (<= main_n 22)))} is VALID [2018-12-18 17:53:32,512 INFO L273 TraceCheckUtils]: 4: Hoare triple {7030#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 8) (<= main_n 22)))} assume i <= n * 4; {7030#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 8) (<= main_n 22)))} is VALID [2018-12-18 17:53:32,513 INFO L273 TraceCheckUtils]: 5: Hoare triple {7030#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 8) (<= main_n 22)))} assume a[i] != 23;i := i + 4; {7031#(and (or (<= main_n 22) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2018-12-18 17:53:32,514 INFO L273 TraceCheckUtils]: 6: Hoare triple {7031#(and (or (<= main_n 22) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7031#(and (or (<= main_n 22) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2018-12-18 17:53:32,515 INFO L273 TraceCheckUtils]: 7: Hoare triple {7031#(and (or (<= main_n 22) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7032#(and (or (<= main_n 22) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2018-12-18 17:53:32,516 INFO L273 TraceCheckUtils]: 8: Hoare triple {7032#(and (or (<= main_n 22) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7032#(and (or (<= main_n 22) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2018-12-18 17:53:32,517 INFO L273 TraceCheckUtils]: 9: Hoare triple {7032#(and (or (<= main_n 22) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7033#(and (or (< 22 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 22)))} is VALID [2018-12-18 17:53:32,518 INFO L273 TraceCheckUtils]: 10: Hoare triple {7033#(and (or (< 22 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 22)))} assume i <= n * 4; {7033#(and (or (< 22 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 22)))} is VALID [2018-12-18 17:53:32,519 INFO L273 TraceCheckUtils]: 11: Hoare triple {7033#(and (or (< 22 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 22)))} assume a[i] != 23;i := i + 4; {7034#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 24) (<= main_n 22)))} is VALID [2018-12-18 17:53:32,519 INFO L273 TraceCheckUtils]: 12: Hoare triple {7034#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 24) (<= main_n 22)))} assume i <= n * 4; {7034#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 24) (<= main_n 22)))} is VALID [2018-12-18 17:53:32,520 INFO L273 TraceCheckUtils]: 13: Hoare triple {7034#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 24) (<= main_n 22)))} assume a[i] != 23;i := i + 4; {7035#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 28)))} is VALID [2018-12-18 17:53:32,521 INFO L273 TraceCheckUtils]: 14: Hoare triple {7035#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 28)))} assume i <= n * 4; {7035#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 28)))} is VALID [2018-12-18 17:53:32,522 INFO L273 TraceCheckUtils]: 15: Hoare triple {7035#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {7036#(and (or (<= main_i 32) (<= main_n 22)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2018-12-18 17:53:32,523 INFO L273 TraceCheckUtils]: 16: Hoare triple {7036#(and (or (<= main_i 32) (<= main_n 22)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7036#(and (or (<= main_i 32) (<= main_n 22)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2018-12-18 17:53:32,524 INFO L273 TraceCheckUtils]: 17: Hoare triple {7036#(and (or (<= main_i 32) (<= main_n 22)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7037#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 22 main_n)) (or (<= main_i 36) (<= main_n 22)))} is VALID [2018-12-18 17:53:32,525 INFO L273 TraceCheckUtils]: 18: Hoare triple {7037#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 22 main_n)) (or (<= main_i 36) (<= main_n 22)))} assume i <= n * 4; {7037#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 22 main_n)) (or (<= main_i 36) (<= main_n 22)))} is VALID [2018-12-18 17:53:32,526 INFO L273 TraceCheckUtils]: 19: Hoare triple {7037#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 22 main_n)) (or (<= main_i 36) (<= main_n 22)))} assume a[i] != 23;i := i + 4; {7038#(and (or (<= main_i 40) (<= main_n 22)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2018-12-18 17:53:32,527 INFO L273 TraceCheckUtils]: 20: Hoare triple {7038#(and (or (<= main_i 40) (<= main_n 22)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7038#(and (or (<= main_i 40) (<= main_n 22)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2018-12-18 17:53:32,528 INFO L273 TraceCheckUtils]: 21: Hoare triple {7038#(and (or (<= main_i 40) (<= main_n 22)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7039#(and (or (<= main_n 22) (<= main_i 44)) (or (< 22 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:32,528 INFO L273 TraceCheckUtils]: 22: Hoare triple {7039#(and (or (<= main_n 22) (<= main_i 44)) (or (< 22 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {7039#(and (or (<= main_n 22) (<= main_i 44)) (or (< 22 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:32,529 INFO L273 TraceCheckUtils]: 23: Hoare triple {7039#(and (or (<= main_n 22) (<= main_i 44)) (or (< 22 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {7040#(and (or (<= main_n 22) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2018-12-18 17:53:32,530 INFO L273 TraceCheckUtils]: 24: Hoare triple {7040#(and (or (<= main_n 22) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7040#(and (or (<= main_n 22) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2018-12-18 17:53:32,531 INFO L273 TraceCheckUtils]: 25: Hoare triple {7040#(and (or (<= main_n 22) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7041#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 52) (<= main_n 22)))} is VALID [2018-12-18 17:53:32,532 INFO L273 TraceCheckUtils]: 26: Hoare triple {7041#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 52) (<= main_n 22)))} assume i <= n * 4; {7041#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 52) (<= main_n 22)))} is VALID [2018-12-18 17:53:32,533 INFO L273 TraceCheckUtils]: 27: Hoare triple {7041#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 52) (<= main_n 22)))} assume a[i] != 23;i := i + 4; {7042#(and (or (<= main_i 56) (<= main_n 22)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2018-12-18 17:53:32,534 INFO L273 TraceCheckUtils]: 28: Hoare triple {7042#(and (or (<= main_i 56) (<= main_n 22)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7042#(and (or (<= main_i 56) (<= main_n 22)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2018-12-18 17:53:32,535 INFO L273 TraceCheckUtils]: 29: Hoare triple {7042#(and (or (<= main_i 56) (<= main_n 22)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7043#(and (or (< 22 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 22)))} is VALID [2018-12-18 17:53:32,536 INFO L273 TraceCheckUtils]: 30: Hoare triple {7043#(and (or (< 22 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 22)))} assume i <= n * 4; {7043#(and (or (< 22 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 22)))} is VALID [2018-12-18 17:53:32,537 INFO L273 TraceCheckUtils]: 31: Hoare triple {7043#(and (or (< 22 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 22)))} assume a[i] != 23;i := i + 4; {7044#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 64) (<= main_n 22)))} is VALID [2018-12-18 17:53:32,537 INFO L273 TraceCheckUtils]: 32: Hoare triple {7044#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 64) (<= main_n 22)))} assume i <= n * 4; {7044#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 64) (<= main_n 22)))} is VALID [2018-12-18 17:53:32,538 INFO L273 TraceCheckUtils]: 33: Hoare triple {7044#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_i 64) (<= main_n 22)))} assume a[i] != 23;i := i + 4; {7045#(and (or (<= main_n 22) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2018-12-18 17:53:32,539 INFO L273 TraceCheckUtils]: 34: Hoare triple {7045#(and (or (<= main_n 22) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7045#(and (or (<= main_n 22) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2018-12-18 17:53:32,540 INFO L273 TraceCheckUtils]: 35: Hoare triple {7045#(and (or (<= main_n 22) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7046#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 72)))} is VALID [2018-12-18 17:53:32,541 INFO L273 TraceCheckUtils]: 36: Hoare triple {7046#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 72)))} assume i <= n * 4; {7046#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 72)))} is VALID [2018-12-18 17:53:32,542 INFO L273 TraceCheckUtils]: 37: Hoare triple {7046#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 72)))} assume a[i] != 23;i := i + 4; {7047#(and (or (<= main_i 76) (<= main_n 22)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2018-12-18 17:53:32,543 INFO L273 TraceCheckUtils]: 38: Hoare triple {7047#(and (or (<= main_i 76) (<= main_n 22)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume i <= n * 4; {7047#(and (or (<= main_i 76) (<= main_n 22)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} is VALID [2018-12-18 17:53:32,544 INFO L273 TraceCheckUtils]: 39: Hoare triple {7047#(and (or (<= main_i 76) (<= main_n 22)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7048#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 80)))} is VALID [2018-12-18 17:53:32,545 INFO L273 TraceCheckUtils]: 40: Hoare triple {7048#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 80)))} assume i <= n * 4; {7048#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 80)))} is VALID [2018-12-18 17:53:32,546 INFO L273 TraceCheckUtils]: 41: Hoare triple {7048#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 22 main_n)) (or (<= main_n 22) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {7049#(and (or (<= main_i 84) (<= main_n 22)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 22 main_n)))} is VALID [2018-12-18 17:53:32,546 INFO L273 TraceCheckUtils]: 42: Hoare triple {7049#(and (or (<= main_i 84) (<= main_n 22)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 22 main_n)))} assume i <= n * 4; {7049#(and (or (<= main_i 84) (<= main_n 22)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 22 main_n)))} is VALID [2018-12-18 17:53:32,548 INFO L273 TraceCheckUtils]: 43: Hoare triple {7049#(and (or (<= main_i 84) (<= main_n 22)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 22 main_n)))} assume a[i] != 23;i := i + 4; {7050#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 22 main_n)) (or (<= main_i 88) (<= main_n 22)))} is VALID [2018-12-18 17:53:32,549 INFO L273 TraceCheckUtils]: 44: Hoare triple {7050#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 22 main_n)) (or (<= main_i 88) (<= main_n 22)))} assume i <= n * 4; {7051#(and (<= main_i 88) (or (< 22 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2018-12-18 17:53:32,550 INFO L273 TraceCheckUtils]: 45: Hoare triple {7051#(and (<= main_i 88) (or (< 22 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {7052#(and (<= main_i 92) (< 22 main_n))} is VALID [2018-12-18 17:53:32,550 INFO L273 TraceCheckUtils]: 46: Hoare triple {7052#(and (<= main_i 92) (< 22 main_n))} assume !(i <= n * 4); {7027#false} is VALID [2018-12-18 17:53:32,561 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:53:32,561 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:53:32,561 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:53:32,561 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:53:32,561 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:53:32,561 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:53:32,562 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:53:32,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:53:32,570 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-18 17:53:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:53:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:53:32,593 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:53:32,612 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:53:32,625 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:53:32,637 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:53:32,637 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:53:32,640 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:53:32,640 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_26]. (and (= main_a (store v_main_a_26 (* 4 main_n) 23)) (= main_i 0)) [2018-12-18 17:53:32,640 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:53:33,798 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:53:33,800 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:53:33,805 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:53:33,806 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:53:33,808 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:53:33,808 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 92) (not (= (select main_a 88) 23)) (= 23 (select main_a .cse0)) (<= 88 .cse0))) [2018-12-18 17:53:33,808 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 92) (not (= 88 .cse0)) (<= 88 .cse0))) [2018-12-18 17:53:33,840 INFO L273 TraceCheckUtils]: 0: Hoare triple {7026#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {7056#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,841 INFO L273 TraceCheckUtils]: 1: Hoare triple {7056#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7060#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:53:33,841 INFO L273 TraceCheckUtils]: 2: Hoare triple {7060#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {7060#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:53:33,842 INFO L273 TraceCheckUtils]: 3: Hoare triple {7060#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {7067#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,843 INFO L273 TraceCheckUtils]: 4: Hoare triple {7067#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7067#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,844 INFO L273 TraceCheckUtils]: 5: Hoare triple {7067#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7074#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:53:33,844 INFO L273 TraceCheckUtils]: 6: Hoare triple {7074#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {7074#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:53:33,845 INFO L273 TraceCheckUtils]: 7: Hoare triple {7074#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {7081#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,846 INFO L273 TraceCheckUtils]: 8: Hoare triple {7081#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7081#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,846 INFO L273 TraceCheckUtils]: 9: Hoare triple {7081#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7088#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,847 INFO L273 TraceCheckUtils]: 10: Hoare triple {7088#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7088#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,848 INFO L273 TraceCheckUtils]: 11: Hoare triple {7088#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7095#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,848 INFO L273 TraceCheckUtils]: 12: Hoare triple {7095#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7095#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,849 INFO L273 TraceCheckUtils]: 13: Hoare triple {7095#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7102#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,850 INFO L273 TraceCheckUtils]: 14: Hoare triple {7102#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7102#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,850 INFO L273 TraceCheckUtils]: 15: Hoare triple {7102#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7109#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,851 INFO L273 TraceCheckUtils]: 16: Hoare triple {7109#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7109#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,852 INFO L273 TraceCheckUtils]: 17: Hoare triple {7109#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7116#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,853 INFO L273 TraceCheckUtils]: 18: Hoare triple {7116#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7116#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,853 INFO L273 TraceCheckUtils]: 19: Hoare triple {7116#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7123#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,854 INFO L273 TraceCheckUtils]: 20: Hoare triple {7123#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7123#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,855 INFO L273 TraceCheckUtils]: 21: Hoare triple {7123#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7130#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,855 INFO L273 TraceCheckUtils]: 22: Hoare triple {7130#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7130#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,856 INFO L273 TraceCheckUtils]: 23: Hoare triple {7130#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7137#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,857 INFO L273 TraceCheckUtils]: 24: Hoare triple {7137#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7137#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,857 INFO L273 TraceCheckUtils]: 25: Hoare triple {7137#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7144#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,858 INFO L273 TraceCheckUtils]: 26: Hoare triple {7144#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7144#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,859 INFO L273 TraceCheckUtils]: 27: Hoare triple {7144#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7151#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,859 INFO L273 TraceCheckUtils]: 28: Hoare triple {7151#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7151#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,860 INFO L273 TraceCheckUtils]: 29: Hoare triple {7151#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7158#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,861 INFO L273 TraceCheckUtils]: 30: Hoare triple {7158#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7158#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,862 INFO L273 TraceCheckUtils]: 31: Hoare triple {7158#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7165#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,862 INFO L273 TraceCheckUtils]: 32: Hoare triple {7165#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7165#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,863 INFO L273 TraceCheckUtils]: 33: Hoare triple {7165#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7172#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,864 INFO L273 TraceCheckUtils]: 34: Hoare triple {7172#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7172#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,864 INFO L273 TraceCheckUtils]: 35: Hoare triple {7172#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7179#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,865 INFO L273 TraceCheckUtils]: 36: Hoare triple {7179#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7179#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,866 INFO L273 TraceCheckUtils]: 37: Hoare triple {7179#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7186#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,866 INFO L273 TraceCheckUtils]: 38: Hoare triple {7186#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7186#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,867 INFO L273 TraceCheckUtils]: 39: Hoare triple {7186#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7193#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:53:33,868 INFO L273 TraceCheckUtils]: 40: Hoare triple {7193#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {7193#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:53:33,868 INFO L273 TraceCheckUtils]: 41: Hoare triple {7193#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {7200#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,869 INFO L273 TraceCheckUtils]: 42: Hoare triple {7200#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7200#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,870 INFO L273 TraceCheckUtils]: 43: Hoare triple {7200#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7207#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,871 INFO L273 TraceCheckUtils]: 44: Hoare triple {7207#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7211#(and (<= main_i (* 4 main_n)) (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:33,871 INFO L273 TraceCheckUtils]: 45: Hoare triple {7211#(and (<= main_i (* 4 main_n)) (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7052#(and (<= main_i 92) (< 22 main_n))} is VALID [2018-12-18 17:53:33,872 INFO L273 TraceCheckUtils]: 46: Hoare triple {7052#(and (<= main_i 92) (< 22 main_n))} assume !(i <= n * 4); {7027#false} is VALID [2018-12-18 17:53:33,879 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:53:33,879 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:53:35,629 INFO L273 TraceCheckUtils]: 46: Hoare triple {7218#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {7027#false} is VALID [2018-12-18 17:53:35,630 INFO L273 TraceCheckUtils]: 45: Hoare triple {7222#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {7218#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:53:35,630 INFO L273 TraceCheckUtils]: 44: Hoare triple {7226#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {7222#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:53:35,631 INFO L273 TraceCheckUtils]: 43: Hoare triple {7230#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {7226#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:53:35,632 INFO L273 TraceCheckUtils]: 42: Hoare triple {7230#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {7230#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:53:35,633 INFO L273 TraceCheckUtils]: 41: Hoare triple {7237#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {7230#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:53:35,634 INFO L273 TraceCheckUtils]: 40: Hoare triple {7237#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {7237#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:53:35,635 INFO L273 TraceCheckUtils]: 39: Hoare triple {7244#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {7237#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:53:35,635 INFO L273 TraceCheckUtils]: 38: Hoare triple {7244#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {7244#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:53:35,636 INFO L273 TraceCheckUtils]: 37: Hoare triple {7251#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {7244#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:53:35,637 INFO L273 TraceCheckUtils]: 36: Hoare triple {7251#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {7251#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:53:35,638 INFO L273 TraceCheckUtils]: 35: Hoare triple {7258#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7251#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:53:35,638 INFO L273 TraceCheckUtils]: 34: Hoare triple {7258#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {7258#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:53:35,639 INFO L273 TraceCheckUtils]: 33: Hoare triple {7265#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {7258#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:53:35,640 INFO L273 TraceCheckUtils]: 32: Hoare triple {7265#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {7265#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:53:35,641 INFO L273 TraceCheckUtils]: 31: Hoare triple {7272#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7265#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:53:35,642 INFO L273 TraceCheckUtils]: 30: Hoare triple {7272#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {7272#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:53:35,643 INFO L273 TraceCheckUtils]: 29: Hoare triple {7279#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7272#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:53:35,643 INFO L273 TraceCheckUtils]: 28: Hoare triple {7279#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {7279#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:53:35,644 INFO L273 TraceCheckUtils]: 27: Hoare triple {7286#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7279#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:53:35,645 INFO L273 TraceCheckUtils]: 26: Hoare triple {7286#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {7286#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:53:35,646 INFO L273 TraceCheckUtils]: 25: Hoare triple {7293#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {7286#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:53:35,646 INFO L273 TraceCheckUtils]: 24: Hoare triple {7293#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {7293#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:53:35,647 INFO L273 TraceCheckUtils]: 23: Hoare triple {7300#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7293#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:53:35,648 INFO L273 TraceCheckUtils]: 22: Hoare triple {7300#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {7300#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:53:35,649 INFO L273 TraceCheckUtils]: 21: Hoare triple {7307#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7300#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:53:35,650 INFO L273 TraceCheckUtils]: 20: Hoare triple {7307#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {7307#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:53:35,651 INFO L273 TraceCheckUtils]: 19: Hoare triple {7314#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {7307#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:53:35,651 INFO L273 TraceCheckUtils]: 18: Hoare triple {7314#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {7314#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:53:35,652 INFO L273 TraceCheckUtils]: 17: Hoare triple {7321#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7314#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:53:35,653 INFO L273 TraceCheckUtils]: 16: Hoare triple {7321#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {7321#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:53:35,654 INFO L273 TraceCheckUtils]: 15: Hoare triple {7328#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {7321#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:53:35,654 INFO L273 TraceCheckUtils]: 14: Hoare triple {7328#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {7328#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:53:35,655 INFO L273 TraceCheckUtils]: 13: Hoare triple {7335#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {7328#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:53:35,656 INFO L273 TraceCheckUtils]: 12: Hoare triple {7335#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {7335#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:53:35,657 INFO L273 TraceCheckUtils]: 11: Hoare triple {7342#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {7335#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:53:35,658 INFO L273 TraceCheckUtils]: 10: Hoare triple {7342#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {7342#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:53:35,659 INFO L273 TraceCheckUtils]: 9: Hoare triple {7349#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {7342#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:53:35,659 INFO L273 TraceCheckUtils]: 8: Hoare triple {7349#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {7349#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:53:35,660 INFO L273 TraceCheckUtils]: 7: Hoare triple {7356#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {7349#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:53:35,661 INFO L273 TraceCheckUtils]: 6: Hoare triple {7356#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {7356#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:53:35,662 INFO L273 TraceCheckUtils]: 5: Hoare triple {7363#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {7356#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:53:35,662 INFO L273 TraceCheckUtils]: 4: Hoare triple {7363#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {7363#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:53:35,663 INFO L273 TraceCheckUtils]: 3: Hoare triple {7370#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7363#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:53:35,664 INFO L273 TraceCheckUtils]: 2: Hoare triple {7370#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {7370#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:53:35,665 INFO L273 TraceCheckUtils]: 1: Hoare triple {7377#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7370#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:53:35,666 INFO L273 TraceCheckUtils]: 0: Hoare triple {7026#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {7377#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:53:35,676 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:53:35,693 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:53:35,694 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 74 [2018-12-18 17:53:35,694 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:53:35,694 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 47 [2018-12-18 17:53:35,694 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:53:35,695 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 51 states. [2018-12-18 17:53:35,800 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 93 edges. 93 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:53:35,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 51 states [2018-12-18 17:53:35,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2018-12-18 17:53:35,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=758, Invalid=4942, Unknown=0, NotChecked=0, Total=5700 [2018-12-18 17:53:35,802 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 51 states. [2018-12-18 17:53:39,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:53:39,624 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2018-12-18 17:53:39,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-18 17:53:39,625 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 47 [2018-12-18 17:53:39,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:53:39,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-12-18 17:53:39,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 52 transitions. [2018-12-18 17:53:39,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-12-18 17:53:39,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 52 transitions. [2018-12-18 17:53:39,627 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 27 states and 52 transitions. [2018-12-18 17:53:39,683 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 52 edges. 52 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:53:39,684 INFO L225 Difference]: With dead ends: 52 [2018-12-18 17:53:39,684 INFO L226 Difference]: Without dead ends: 51 [2018-12-18 17:53:39,685 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1296 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=758, Invalid=4942, Unknown=0, NotChecked=0, Total=5700 [2018-12-18 17:53:39,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-12-18 17:53:39,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2018-12-18 17:53:39,750 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:53:39,750 INFO L82 GeneralOperation]: Start isEquivalent. First operand 51 states. Second operand 50 states. [2018-12-18 17:53:39,750 INFO L74 IsIncluded]: Start isIncluded. First operand 51 states. Second operand 50 states. [2018-12-18 17:53:39,750 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 50 states. [2018-12-18 17:53:39,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:53:39,751 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2018-12-18 17:53:39,751 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-12-18 17:53:39,752 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:53:39,752 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:53:39,752 INFO L74 IsIncluded]: Start isIncluded. First operand 50 states. Second operand 51 states. [2018-12-18 17:53:39,752 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 51 states. [2018-12-18 17:53:39,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:53:39,753 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2018-12-18 17:53:39,753 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-12-18 17:53:39,753 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:53:39,753 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:53:39,753 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:53:39,753 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:53:39,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-18 17:53:39,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2018-12-18 17:53:39,754 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 47 [2018-12-18 17:53:39,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:53:39,754 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2018-12-18 17:53:39,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has 51 states. [2018-12-18 17:53:39,754 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2018-12-18 17:53:39,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-12-18 17:53:39,755 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:53:39,755 INFO L402 BasicCegarLoop]: trace histogram [24, 23, 1, 1] [2018-12-18 17:53:39,755 INFO L423 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:53:39,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:53:39,755 INFO L82 PathProgramCache]: Analyzing trace with hash -62633906, now seen corresponding path program 23 times [2018-12-18 17:53:39,755 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:53:39,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:53:39,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:53:39,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:53:39,756 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:53:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:53:40,186 WARN L181 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-12-18 17:53:40,641 WARN L181 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-12-18 17:53:41,670 INFO L273 TraceCheckUtils]: 0: Hoare triple {7633#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {7635#(and (or (<= 0 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,671 INFO L273 TraceCheckUtils]: 1: Hoare triple {7635#(and (or (<= 0 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7636#(and (or (<= main_n 23) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 23 main_n) (<= 4 main_i)))} is VALID [2018-12-18 17:53:41,672 INFO L273 TraceCheckUtils]: 2: Hoare triple {7636#(and (or (<= main_n 23) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 23 main_n) (<= 4 main_i)))} assume i <= n * 4; {7636#(and (or (<= main_n 23) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 23 main_n) (<= 4 main_i)))} is VALID [2018-12-18 17:53:41,673 INFO L273 TraceCheckUtils]: 3: Hoare triple {7636#(and (or (<= main_n 23) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))) (or (< 23 main_n) (<= 4 main_i)))} assume a[i] != 23;i := i + 4; {7637#(and (or (<= 8 main_i) (< 23 main_n)) (or (<= main_i 8) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,674 INFO L273 TraceCheckUtils]: 4: Hoare triple {7637#(and (or (<= 8 main_i) (< 23 main_n)) (or (<= main_i 8) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7637#(and (or (<= 8 main_i) (< 23 main_n)) (or (<= main_i 8) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,675 INFO L273 TraceCheckUtils]: 5: Hoare triple {7637#(and (or (<= 8 main_i) (< 23 main_n)) (or (<= main_i 8) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7638#(and (or (<= main_n 23) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (<= 12 main_i) (< 23 main_n)))} is VALID [2018-12-18 17:53:41,676 INFO L273 TraceCheckUtils]: 6: Hoare triple {7638#(and (or (<= main_n 23) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (<= 12 main_i) (< 23 main_n)))} assume i <= n * 4; {7638#(and (or (<= main_n 23) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (<= 12 main_i) (< 23 main_n)))} is VALID [2018-12-18 17:53:41,677 INFO L273 TraceCheckUtils]: 7: Hoare triple {7638#(and (or (<= main_n 23) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))) (or (<= 12 main_i) (< 23 main_n)))} assume a[i] != 23;i := i + 4; {7639#(and (or (<= main_n 23) (<= main_i 16)) (or (<= 16 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,678 INFO L273 TraceCheckUtils]: 8: Hoare triple {7639#(and (or (<= main_n 23) (<= main_i 16)) (or (<= 16 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7639#(and (or (<= main_n 23) (<= main_i 16)) (or (<= 16 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,679 INFO L273 TraceCheckUtils]: 9: Hoare triple {7639#(and (or (<= main_n 23) (<= main_i 16)) (or (<= 16 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7640#(and (or (<= main_n 23) (<= main_i 20)) (or (<= 20 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,679 INFO L273 TraceCheckUtils]: 10: Hoare triple {7640#(and (or (<= main_n 23) (<= main_i 20)) (or (<= 20 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7640#(and (or (<= main_n 23) (<= main_i 20)) (or (<= 20 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,680 INFO L273 TraceCheckUtils]: 11: Hoare triple {7640#(and (or (<= main_n 23) (<= main_i 20)) (or (<= 20 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7641#(and (or (<= 24 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,681 INFO L273 TraceCheckUtils]: 12: Hoare triple {7641#(and (or (<= 24 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7641#(and (or (<= 24 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,682 INFO L273 TraceCheckUtils]: 13: Hoare triple {7641#(and (or (<= 24 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7642#(and (or (<= 28 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 23) (<= main_i 28)))} is VALID [2018-12-18 17:53:41,683 INFO L273 TraceCheckUtils]: 14: Hoare triple {7642#(and (or (<= 28 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 23) (<= main_i 28)))} assume i <= n * 4; {7642#(and (or (<= 28 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 23) (<= main_i 28)))} is VALID [2018-12-18 17:53:41,684 INFO L273 TraceCheckUtils]: 15: Hoare triple {7642#(and (or (<= 28 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 23) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {7643#(and (or (<= 32 main_i) (< 23 main_n)) (or (<= main_i 32) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,685 INFO L273 TraceCheckUtils]: 16: Hoare triple {7643#(and (or (<= 32 main_i) (< 23 main_n)) (or (<= main_i 32) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7643#(and (or (<= 32 main_i) (< 23 main_n)) (or (<= main_i 32) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,686 INFO L273 TraceCheckUtils]: 17: Hoare triple {7643#(and (or (<= 32 main_i) (< 23 main_n)) (or (<= main_i 32) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7644#(and (or (<= main_i 36) (<= main_n 23)) (or (< 23 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,687 INFO L273 TraceCheckUtils]: 18: Hoare triple {7644#(and (or (<= main_i 36) (<= main_n 23)) (or (< 23 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7644#(and (or (<= main_i 36) (<= main_n 23)) (or (< 23 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,688 INFO L273 TraceCheckUtils]: 19: Hoare triple {7644#(and (or (<= main_i 36) (<= main_n 23)) (or (< 23 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7645#(and (or (<= main_i 40) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 23 main_n)))} is VALID [2018-12-18 17:53:41,688 INFO L273 TraceCheckUtils]: 20: Hoare triple {7645#(and (or (<= main_i 40) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 23 main_n)))} assume i <= n * 4; {7645#(and (or (<= main_i 40) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 23 main_n)))} is VALID [2018-12-18 17:53:41,689 INFO L273 TraceCheckUtils]: 21: Hoare triple {7645#(and (or (<= main_i 40) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 23 main_n)))} assume a[i] != 23;i := i + 4; {7646#(and (or (<= main_n 23) (<= main_i 44)) (or (<= 44 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,690 INFO L273 TraceCheckUtils]: 22: Hoare triple {7646#(and (or (<= main_n 23) (<= main_i 44)) (or (<= 44 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7646#(and (or (<= main_n 23) (<= main_i 44)) (or (<= 44 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,691 INFO L273 TraceCheckUtils]: 23: Hoare triple {7646#(and (or (<= main_n 23) (<= main_i 44)) (or (<= 44 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7647#(and (or (<= 48 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,692 INFO L273 TraceCheckUtils]: 24: Hoare triple {7647#(and (or (<= 48 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7647#(and (or (<= 48 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,693 INFO L273 TraceCheckUtils]: 25: Hoare triple {7647#(and (or (<= 48 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7648#(and (or (<= 52 main_i) (< 23 main_n)) (or (<= main_i 52) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,694 INFO L273 TraceCheckUtils]: 26: Hoare triple {7648#(and (or (<= 52 main_i) (< 23 main_n)) (or (<= main_i 52) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7648#(and (or (<= 52 main_i) (< 23 main_n)) (or (<= main_i 52) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,695 INFO L273 TraceCheckUtils]: 27: Hoare triple {7648#(and (or (<= 52 main_i) (< 23 main_n)) (or (<= main_i 52) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7649#(and (or (<= 56 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,696 INFO L273 TraceCheckUtils]: 28: Hoare triple {7649#(and (or (<= 56 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7649#(and (or (<= 56 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,697 INFO L273 TraceCheckUtils]: 29: Hoare triple {7649#(and (or (<= 56 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7650#(and (or (<= 60 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,697 INFO L273 TraceCheckUtils]: 30: Hoare triple {7650#(and (or (<= 60 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7650#(and (or (<= 60 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,698 INFO L273 TraceCheckUtils]: 31: Hoare triple {7650#(and (or (<= 60 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7651#(and (or (<= main_i 64) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 64 main_i) (< 23 main_n)))} is VALID [2018-12-18 17:53:41,699 INFO L273 TraceCheckUtils]: 32: Hoare triple {7651#(and (or (<= main_i 64) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 64 main_i) (< 23 main_n)))} assume i <= n * 4; {7651#(and (or (<= main_i 64) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 64 main_i) (< 23 main_n)))} is VALID [2018-12-18 17:53:41,700 INFO L273 TraceCheckUtils]: 33: Hoare triple {7651#(and (or (<= main_i 64) (<= main_n 23)) (= 23 (select main_a (* 4 main_n))) (or (<= 64 main_i) (< 23 main_n)))} assume a[i] != 23;i := i + 4; {7652#(and (or (<= 68 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,701 INFO L273 TraceCheckUtils]: 34: Hoare triple {7652#(and (or (<= 68 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7652#(and (or (<= 68 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,702 INFO L273 TraceCheckUtils]: 35: Hoare triple {7652#(and (or (<= 68 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7653#(and (or (<= 72 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,703 INFO L273 TraceCheckUtils]: 36: Hoare triple {7653#(and (or (<= 72 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7653#(and (or (<= 72 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,704 INFO L273 TraceCheckUtils]: 37: Hoare triple {7653#(and (or (<= 72 main_i) (< 23 main_n)) (or (<= main_n 23) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7654#(and (or (<= 76 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 23)))} is VALID [2018-12-18 17:53:41,705 INFO L273 TraceCheckUtils]: 38: Hoare triple {7654#(and (or (<= 76 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 23)))} assume i <= n * 4; {7654#(and (or (<= 76 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 23)))} is VALID [2018-12-18 17:53:41,706 INFO L273 TraceCheckUtils]: 39: Hoare triple {7654#(and (or (<= 76 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 23)))} assume a[i] != 23;i := i + 4; {7655#(and (or (<= main_n 23) (<= main_i 80)) (or (<= 80 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,706 INFO L273 TraceCheckUtils]: 40: Hoare triple {7655#(and (or (<= main_n 23) (<= main_i 80)) (or (<= 80 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7655#(and (or (<= main_n 23) (<= main_i 80)) (or (<= 80 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:41,707 INFO L273 TraceCheckUtils]: 41: Hoare triple {7655#(and (or (<= main_n 23) (<= main_i 80)) (or (<= 80 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7656#(and (or (< 23 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 23)))} is VALID [2018-12-18 17:53:41,708 INFO L273 TraceCheckUtils]: 42: Hoare triple {7656#(and (or (< 23 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 23)))} assume i <= n * 4; {7656#(and (or (< 23 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 23)))} is VALID [2018-12-18 17:53:41,709 INFO L273 TraceCheckUtils]: 43: Hoare triple {7656#(and (or (< 23 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 23)))} assume a[i] != 23;i := i + 4; {7657#(and (or (<= 88 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 23)))} is VALID [2018-12-18 17:53:41,710 INFO L273 TraceCheckUtils]: 44: Hoare triple {7657#(and (or (<= 88 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 23)))} assume i <= n * 4; {7657#(and (or (<= 88 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 23)))} is VALID [2018-12-18 17:53:41,711 INFO L273 TraceCheckUtils]: 45: Hoare triple {7657#(and (or (<= 88 main_i) (< 23 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 23)))} assume a[i] != 23;i := i + 4; {7658#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 23 main_n)) (or (<= main_i 92) (<= main_n 23)))))} is VALID [2018-12-18 17:53:41,712 INFO L273 TraceCheckUtils]: 46: Hoare triple {7658#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 23 main_n)) (or (<= main_i 92) (<= main_n 23)))))} assume i <= n * 4; {7659#(and (or (= (* 4 main_n) main_i) (and (<= main_i 92) (< 23 main_n))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2018-12-18 17:53:41,713 INFO L273 TraceCheckUtils]: 47: Hoare triple {7659#(and (or (= (* 4 main_n) main_i) (and (<= main_i 92) (< 23 main_n))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume a[i] != 23;i := i + 4; {7660#(and (<= main_i 96) (< 23 main_n))} is VALID [2018-12-18 17:53:41,714 INFO L273 TraceCheckUtils]: 48: Hoare triple {7660#(and (<= main_i 96) (< 23 main_n))} assume !(i <= n * 4); {7634#false} is VALID [2018-12-18 17:53:41,725 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:53:41,725 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:53:41,725 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:53:41,725 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:53:41,726 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:53:41,726 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:53:41,726 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:53:41,734 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-18 17:53:41,734 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-18 17:53:41,763 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2018-12-18 17:53:41,764 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:53:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:53:41,772 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:53:41,786 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:53:41,788 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:53:41,796 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:53:41,796 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:53:41,798 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:53:41,798 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_27]. (and (= (store v_main_a_27 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:53:41,798 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:53:43,039 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:53:43,041 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:53:43,045 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:53:43,046 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:53:43,048 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:53:43,048 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 96) (not (= 23 (select main_a 92))) (<= 92 .cse0) (= 23 (select main_a .cse0)))) [2018-12-18 17:53:43,049 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 96) (not (= 92 .cse0)) (<= 92 .cse0))) [2018-12-18 17:53:43,086 INFO L273 TraceCheckUtils]: 0: Hoare triple {7633#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {7664#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,087 INFO L273 TraceCheckUtils]: 1: Hoare triple {7664#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7668#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:53:43,087 INFO L273 TraceCheckUtils]: 2: Hoare triple {7668#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {7668#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:53:43,087 INFO L273 TraceCheckUtils]: 3: Hoare triple {7668#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {7675#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,088 INFO L273 TraceCheckUtils]: 4: Hoare triple {7675#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7675#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,088 INFO L273 TraceCheckUtils]: 5: Hoare triple {7675#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7682#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:53:43,089 INFO L273 TraceCheckUtils]: 6: Hoare triple {7682#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {7682#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:53:43,090 INFO L273 TraceCheckUtils]: 7: Hoare triple {7682#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {7689#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,090 INFO L273 TraceCheckUtils]: 8: Hoare triple {7689#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7689#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,091 INFO L273 TraceCheckUtils]: 9: Hoare triple {7689#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7696#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,092 INFO L273 TraceCheckUtils]: 10: Hoare triple {7696#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7696#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,092 INFO L273 TraceCheckUtils]: 11: Hoare triple {7696#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7703#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,093 INFO L273 TraceCheckUtils]: 12: Hoare triple {7703#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7703#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,094 INFO L273 TraceCheckUtils]: 13: Hoare triple {7703#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7710#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,094 INFO L273 TraceCheckUtils]: 14: Hoare triple {7710#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7710#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,095 INFO L273 TraceCheckUtils]: 15: Hoare triple {7710#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7717#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,096 INFO L273 TraceCheckUtils]: 16: Hoare triple {7717#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7717#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,097 INFO L273 TraceCheckUtils]: 17: Hoare triple {7717#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7724#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,097 INFO L273 TraceCheckUtils]: 18: Hoare triple {7724#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7724#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,098 INFO L273 TraceCheckUtils]: 19: Hoare triple {7724#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7731#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,099 INFO L273 TraceCheckUtils]: 20: Hoare triple {7731#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7731#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,099 INFO L273 TraceCheckUtils]: 21: Hoare triple {7731#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7738#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,100 INFO L273 TraceCheckUtils]: 22: Hoare triple {7738#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7738#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,101 INFO L273 TraceCheckUtils]: 23: Hoare triple {7738#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7745#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,102 INFO L273 TraceCheckUtils]: 24: Hoare triple {7745#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7745#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,102 INFO L273 TraceCheckUtils]: 25: Hoare triple {7745#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7752#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,103 INFO L273 TraceCheckUtils]: 26: Hoare triple {7752#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7752#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,104 INFO L273 TraceCheckUtils]: 27: Hoare triple {7752#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7759#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,104 INFO L273 TraceCheckUtils]: 28: Hoare triple {7759#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7759#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,105 INFO L273 TraceCheckUtils]: 29: Hoare triple {7759#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7766#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,106 INFO L273 TraceCheckUtils]: 30: Hoare triple {7766#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7766#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,107 INFO L273 TraceCheckUtils]: 31: Hoare triple {7766#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7773#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,107 INFO L273 TraceCheckUtils]: 32: Hoare triple {7773#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7773#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,108 INFO L273 TraceCheckUtils]: 33: Hoare triple {7773#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7780#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,109 INFO L273 TraceCheckUtils]: 34: Hoare triple {7780#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7780#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,109 INFO L273 TraceCheckUtils]: 35: Hoare triple {7780#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7787#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,110 INFO L273 TraceCheckUtils]: 36: Hoare triple {7787#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7787#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,111 INFO L273 TraceCheckUtils]: 37: Hoare triple {7787#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7794#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,111 INFO L273 TraceCheckUtils]: 38: Hoare triple {7794#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7794#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,112 INFO L273 TraceCheckUtils]: 39: Hoare triple {7794#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7801#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:53:43,113 INFO L273 TraceCheckUtils]: 40: Hoare triple {7801#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {7801#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:53:43,114 INFO L273 TraceCheckUtils]: 41: Hoare triple {7801#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {7808#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,114 INFO L273 TraceCheckUtils]: 42: Hoare triple {7808#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7808#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,115 INFO L273 TraceCheckUtils]: 43: Hoare triple {7808#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7815#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,116 INFO L273 TraceCheckUtils]: 44: Hoare triple {7815#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7815#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,117 INFO L273 TraceCheckUtils]: 45: Hoare triple {7815#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7822#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,117 INFO L273 TraceCheckUtils]: 46: Hoare triple {7822#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {7826#(and (= main_i 92) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:43,118 INFO L273 TraceCheckUtils]: 47: Hoare triple {7826#(and (= main_i 92) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {7660#(and (<= main_i 96) (< 23 main_n))} is VALID [2018-12-18 17:53:43,119 INFO L273 TraceCheckUtils]: 48: Hoare triple {7660#(and (<= main_i 96) (< 23 main_n))} assume !(i <= n * 4); {7634#false} is VALID [2018-12-18 17:53:43,127 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:53:43,127 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:53:45,028 INFO L273 TraceCheckUtils]: 48: Hoare triple {7833#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {7634#false} is VALID [2018-12-18 17:53:45,029 INFO L273 TraceCheckUtils]: 47: Hoare triple {7837#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {7833#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:53:45,030 INFO L273 TraceCheckUtils]: 46: Hoare triple {7841#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {7837#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:53:45,031 INFO L273 TraceCheckUtils]: 45: Hoare triple {7845#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {7841#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:53:45,032 INFO L273 TraceCheckUtils]: 44: Hoare triple {7845#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {7845#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:53:45,033 INFO L273 TraceCheckUtils]: 43: Hoare triple {7852#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {7845#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:53:45,034 INFO L273 TraceCheckUtils]: 42: Hoare triple {7852#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {7852#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:53:45,035 INFO L273 TraceCheckUtils]: 41: Hoare triple {7859#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {7852#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:53:45,035 INFO L273 TraceCheckUtils]: 40: Hoare triple {7859#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {7859#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:53:45,036 INFO L273 TraceCheckUtils]: 39: Hoare triple {7866#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {7859#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:53:45,037 INFO L273 TraceCheckUtils]: 38: Hoare triple {7866#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {7866#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:53:45,038 INFO L273 TraceCheckUtils]: 37: Hoare triple {7873#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7866#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:53:45,039 INFO L273 TraceCheckUtils]: 36: Hoare triple {7873#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {7873#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:53:45,040 INFO L273 TraceCheckUtils]: 35: Hoare triple {7880#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {7873#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:53:45,040 INFO L273 TraceCheckUtils]: 34: Hoare triple {7880#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {7880#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:53:45,041 INFO L273 TraceCheckUtils]: 33: Hoare triple {7887#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7880#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:53:45,042 INFO L273 TraceCheckUtils]: 32: Hoare triple {7887#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {7887#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:53:45,043 INFO L273 TraceCheckUtils]: 31: Hoare triple {7894#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7887#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:53:45,043 INFO L273 TraceCheckUtils]: 30: Hoare triple {7894#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {7894#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:53:45,045 INFO L273 TraceCheckUtils]: 29: Hoare triple {7901#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7894#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:53:45,045 INFO L273 TraceCheckUtils]: 28: Hoare triple {7901#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {7901#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:53:45,046 INFO L273 TraceCheckUtils]: 27: Hoare triple {7908#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {7901#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:53:45,047 INFO L273 TraceCheckUtils]: 26: Hoare triple {7908#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {7908#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:53:45,048 INFO L273 TraceCheckUtils]: 25: Hoare triple {7915#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7908#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:53:45,049 INFO L273 TraceCheckUtils]: 24: Hoare triple {7915#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {7915#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:53:45,050 INFO L273 TraceCheckUtils]: 23: Hoare triple {7922#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7915#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:53:45,050 INFO L273 TraceCheckUtils]: 22: Hoare triple {7922#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {7922#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:53:45,051 INFO L273 TraceCheckUtils]: 21: Hoare triple {7929#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {7922#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:53:45,052 INFO L273 TraceCheckUtils]: 20: Hoare triple {7929#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {7929#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:53:45,053 INFO L273 TraceCheckUtils]: 19: Hoare triple {7936#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7929#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:53:45,054 INFO L273 TraceCheckUtils]: 18: Hoare triple {7936#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {7936#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:53:45,055 INFO L273 TraceCheckUtils]: 17: Hoare triple {7943#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {7936#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:53:45,055 INFO L273 TraceCheckUtils]: 16: Hoare triple {7943#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {7943#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:53:45,056 INFO L273 TraceCheckUtils]: 15: Hoare triple {7950#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {7943#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:53:45,057 INFO L273 TraceCheckUtils]: 14: Hoare triple {7950#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {7950#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:53:45,058 INFO L273 TraceCheckUtils]: 13: Hoare triple {7957#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {7950#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:53:45,059 INFO L273 TraceCheckUtils]: 12: Hoare triple {7957#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {7957#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:53:45,060 INFO L273 TraceCheckUtils]: 11: Hoare triple {7964#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {7957#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:53:45,060 INFO L273 TraceCheckUtils]: 10: Hoare triple {7964#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {7964#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:53:45,061 INFO L273 TraceCheckUtils]: 9: Hoare triple {7971#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {7964#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:53:45,062 INFO L273 TraceCheckUtils]: 8: Hoare triple {7971#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {7971#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:53:45,063 INFO L273 TraceCheckUtils]: 7: Hoare triple {7978#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {7971#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:53:45,063 INFO L273 TraceCheckUtils]: 6: Hoare triple {7978#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {7978#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:53:45,064 INFO L273 TraceCheckUtils]: 5: Hoare triple {7985#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7978#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:53:45,065 INFO L273 TraceCheckUtils]: 4: Hoare triple {7985#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {7985#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:53:45,066 INFO L273 TraceCheckUtils]: 3: Hoare triple {7992#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7985#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:53:45,067 INFO L273 TraceCheckUtils]: 2: Hoare triple {7992#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {7992#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:53:45,068 INFO L273 TraceCheckUtils]: 1: Hoare triple {7999#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {7992#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:53:45,069 INFO L273 TraceCheckUtils]: 0: Hoare triple {7633#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {7999#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:53:45,078 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:53:45,096 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:53:45,096 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 77 [2018-12-18 17:53:45,096 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:53:45,097 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 49 [2018-12-18 17:53:45,097 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:53:45,097 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 53 states. [2018-12-18 17:53:45,209 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 97 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:53:45,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-12-18 17:53:45,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-12-18 17:53:45,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=814, Invalid=5348, Unknown=0, NotChecked=0, Total=6162 [2018-12-18 17:53:45,211 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 53 states. [2018-12-18 17:53:49,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:53:49,693 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2018-12-18 17:53:49,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-12-18 17:53:49,694 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 49 [2018-12-18 17:53:49,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:53:49,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-12-18 17:53:49,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 54 transitions. [2018-12-18 17:53:49,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-12-18 17:53:49,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 54 transitions. [2018-12-18 17:53:49,696 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 28 states and 54 transitions. [2018-12-18 17:53:49,752 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 54 edges. 54 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:53:49,753 INFO L225 Difference]: With dead ends: 54 [2018-12-18 17:53:49,753 INFO L226 Difference]: Without dead ends: 53 [2018-12-18 17:53:49,755 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1400 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=814, Invalid=5348, Unknown=0, NotChecked=0, Total=6162 [2018-12-18 17:53:49,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-12-18 17:53:49,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2018-12-18 17:53:49,863 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:53:49,864 INFO L82 GeneralOperation]: Start isEquivalent. First operand 53 states. Second operand 52 states. [2018-12-18 17:53:49,864 INFO L74 IsIncluded]: Start isIncluded. First operand 53 states. Second operand 52 states. [2018-12-18 17:53:49,864 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 52 states. [2018-12-18 17:53:49,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:53:49,865 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2018-12-18 17:53:49,865 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2018-12-18 17:53:49,866 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:53:49,866 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:53:49,866 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand 53 states. [2018-12-18 17:53:49,867 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 53 states. [2018-12-18 17:53:49,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:53:49,867 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2018-12-18 17:53:49,868 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2018-12-18 17:53:49,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:53:49,868 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:53:49,868 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:53:49,868 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:53:49,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-12-18 17:53:49,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2018-12-18 17:53:49,869 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 49 [2018-12-18 17:53:49,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:53:49,869 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2018-12-18 17:53:49,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-12-18 17:53:49,870 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2018-12-18 17:53:49,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-18 17:53:49,870 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:53:49,870 INFO L402 BasicCegarLoop]: trace histogram [25, 24, 1, 1] [2018-12-18 17:53:49,871 INFO L423 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:53:49,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:53:49,871 INFO L82 PathProgramCache]: Analyzing trace with hash -61640432, now seen corresponding path program 24 times [2018-12-18 17:53:49,871 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:53:49,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:53:49,872 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:53:49,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:53:49,872 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:53:49,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:53:51,232 INFO L273 TraceCheckUtils]: 0: Hoare triple {8265#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {8267#(and (or (<= main_i 0) (<= main_n 24)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2018-12-18 17:53:51,234 INFO L273 TraceCheckUtils]: 1: Hoare triple {8267#(and (or (<= main_i 0) (<= main_n 24)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume a[i] != 23;i := i + 4; {8268#(and (or (< 24 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 24)))} is VALID [2018-12-18 17:53:51,234 INFO L273 TraceCheckUtils]: 2: Hoare triple {8268#(and (or (< 24 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 24)))} assume i <= n * 4; {8268#(and (or (< 24 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 24)))} is VALID [2018-12-18 17:53:51,235 INFO L273 TraceCheckUtils]: 3: Hoare triple {8268#(and (or (< 24 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8269#(and (or (< 24 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 24)))} is VALID [2018-12-18 17:53:51,236 INFO L273 TraceCheckUtils]: 4: Hoare triple {8269#(and (or (< 24 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 24)))} assume i <= n * 4; {8269#(and (or (< 24 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 24)))} is VALID [2018-12-18 17:53:51,237 INFO L273 TraceCheckUtils]: 5: Hoare triple {8269#(and (or (< 24 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8270#(and (or (<= main_n 24) (<= main_i 12)) (or (< 24 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:51,238 INFO L273 TraceCheckUtils]: 6: Hoare triple {8270#(and (or (<= main_n 24) (<= main_i 12)) (or (< 24 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8270#(and (or (<= main_n 24) (<= main_i 12)) (or (< 24 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:51,239 INFO L273 TraceCheckUtils]: 7: Hoare triple {8270#(and (or (<= main_n 24) (<= main_i 12)) (or (< 24 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8271#(and (or (< 24 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 16) (<= main_n 24)))} is VALID [2018-12-18 17:53:51,240 INFO L273 TraceCheckUtils]: 8: Hoare triple {8271#(and (or (< 24 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 16) (<= main_n 24)))} assume i <= n * 4; {8271#(and (or (< 24 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 16) (<= main_n 24)))} is VALID [2018-12-18 17:53:51,241 INFO L273 TraceCheckUtils]: 9: Hoare triple {8271#(and (or (< 24 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 16) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8272#(and (or (<= main_i 20) (<= main_n 24)) (or (< 24 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:51,242 INFO L273 TraceCheckUtils]: 10: Hoare triple {8272#(and (or (<= main_i 20) (<= main_n 24)) (or (< 24 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8272#(and (or (<= main_i 20) (<= main_n 24)) (or (< 24 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:51,243 INFO L273 TraceCheckUtils]: 11: Hoare triple {8272#(and (or (<= main_i 20) (<= main_n 24)) (or (< 24 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8273#(and (or (<= main_i 24) (<= main_n 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2018-12-18 17:53:51,243 INFO L273 TraceCheckUtils]: 12: Hoare triple {8273#(and (or (<= main_i 24) (<= main_n 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume i <= n * 4; {8273#(and (or (<= main_i 24) (<= main_n 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2018-12-18 17:53:51,244 INFO L273 TraceCheckUtils]: 13: Hoare triple {8273#(and (or (<= main_i 24) (<= main_n 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume a[i] != 23;i := i + 4; {8274#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 28) (<= main_n 24)))} is VALID [2018-12-18 17:53:51,245 INFO L273 TraceCheckUtils]: 14: Hoare triple {8274#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 28) (<= main_n 24)))} assume i <= n * 4; {8274#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 28) (<= main_n 24)))} is VALID [2018-12-18 17:53:51,246 INFO L273 TraceCheckUtils]: 15: Hoare triple {8274#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 28) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8275#(and (or (<= main_i 32) (<= main_n 24)) (or (< 24 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:51,247 INFO L273 TraceCheckUtils]: 16: Hoare triple {8275#(and (or (<= main_i 32) (<= main_n 24)) (or (< 24 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8275#(and (or (<= main_i 32) (<= main_n 24)) (or (< 24 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:51,248 INFO L273 TraceCheckUtils]: 17: Hoare triple {8275#(and (or (<= main_i 32) (<= main_n 24)) (or (< 24 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8276#(and (or (<= main_i 36) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 24 main_n)))} is VALID [2018-12-18 17:53:51,249 INFO L273 TraceCheckUtils]: 18: Hoare triple {8276#(and (or (<= main_i 36) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 24 main_n)))} assume i <= n * 4; {8276#(and (or (<= main_i 36) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 24 main_n)))} is VALID [2018-12-18 17:53:51,250 INFO L273 TraceCheckUtils]: 19: Hoare triple {8276#(and (or (<= main_i 36) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 24 main_n)))} assume a[i] != 23;i := i + 4; {8277#(and (or (< 24 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 24)))} is VALID [2018-12-18 17:53:51,251 INFO L273 TraceCheckUtils]: 20: Hoare triple {8277#(and (or (< 24 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 24)))} assume i <= n * 4; {8277#(and (or (< 24 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 24)))} is VALID [2018-12-18 17:53:51,252 INFO L273 TraceCheckUtils]: 21: Hoare triple {8277#(and (or (< 24 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8278#(and (or (<= main_n 24) (<= main_i 44)) (or (< 24 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:51,252 INFO L273 TraceCheckUtils]: 22: Hoare triple {8278#(and (or (<= main_n 24) (<= main_i 44)) (or (< 24 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8278#(and (or (<= main_n 24) (<= main_i 44)) (or (< 24 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:51,253 INFO L273 TraceCheckUtils]: 23: Hoare triple {8278#(and (or (<= main_n 24) (<= main_i 44)) (or (< 24 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8279#(and (or (<= main_i 48) (<= main_n 24)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2018-12-18 17:53:51,254 INFO L273 TraceCheckUtils]: 24: Hoare triple {8279#(and (or (<= main_i 48) (<= main_n 24)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume i <= n * 4; {8279#(and (or (<= main_i 48) (<= main_n 24)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2018-12-18 17:53:51,255 INFO L273 TraceCheckUtils]: 25: Hoare triple {8279#(and (or (<= main_i 48) (<= main_n 24)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume a[i] != 23;i := i + 4; {8280#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 52) (<= main_n 24)))} is VALID [2018-12-18 17:53:51,256 INFO L273 TraceCheckUtils]: 26: Hoare triple {8280#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 52) (<= main_n 24)))} assume i <= n * 4; {8280#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 52) (<= main_n 24)))} is VALID [2018-12-18 17:53:51,257 INFO L273 TraceCheckUtils]: 27: Hoare triple {8280#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 52) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8281#(and (or (< 24 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 24)))} is VALID [2018-12-18 17:53:51,258 INFO L273 TraceCheckUtils]: 28: Hoare triple {8281#(and (or (< 24 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 24)))} assume i <= n * 4; {8281#(and (or (< 24 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 24)))} is VALID [2018-12-18 17:53:51,259 INFO L273 TraceCheckUtils]: 29: Hoare triple {8281#(and (or (< 24 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8282#(and (or (<= main_i 60) (<= main_n 24)) (or (< 24 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:51,260 INFO L273 TraceCheckUtils]: 30: Hoare triple {8282#(and (or (<= main_i 60) (<= main_n 24)) (or (< 24 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8282#(and (or (<= main_i 60) (<= main_n 24)) (or (< 24 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:51,261 INFO L273 TraceCheckUtils]: 31: Hoare triple {8282#(and (or (<= main_i 60) (<= main_n 24)) (or (< 24 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8283#(and (or (<= main_i 64) (<= main_n 24)) (or (< 24 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:51,261 INFO L273 TraceCheckUtils]: 32: Hoare triple {8283#(and (or (<= main_i 64) (<= main_n 24)) (or (< 24 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8283#(and (or (<= main_i 64) (<= main_n 24)) (or (< 24 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:51,262 INFO L273 TraceCheckUtils]: 33: Hoare triple {8283#(and (or (<= main_i 64) (<= main_n 24)) (or (< 24 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8284#(and (or (<= main_n 24) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2018-12-18 17:53:51,263 INFO L273 TraceCheckUtils]: 34: Hoare triple {8284#(and (or (<= main_n 24) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume i <= n * 4; {8284#(and (or (<= main_n 24) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2018-12-18 17:53:51,264 INFO L273 TraceCheckUtils]: 35: Hoare triple {8284#(and (or (<= main_n 24) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume a[i] != 23;i := i + 4; {8285#(and (or (<= main_i 72) (<= main_n 24)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2018-12-18 17:53:51,265 INFO L273 TraceCheckUtils]: 36: Hoare triple {8285#(and (or (<= main_i 72) (<= main_n 24)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume i <= n * 4; {8285#(and (or (<= main_i 72) (<= main_n 24)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} is VALID [2018-12-18 17:53:51,266 INFO L273 TraceCheckUtils]: 37: Hoare triple {8285#(and (or (<= main_i 72) (<= main_n 24)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)))} assume a[i] != 23;i := i + 4; {8286#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 76) (<= main_n 24)))} is VALID [2018-12-18 17:53:51,267 INFO L273 TraceCheckUtils]: 38: Hoare triple {8286#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 76) (<= main_n 24)))} assume i <= n * 4; {8286#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 76) (<= main_n 24)))} is VALID [2018-12-18 17:53:51,268 INFO L273 TraceCheckUtils]: 39: Hoare triple {8286#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 24 main_n)) (or (<= main_i 76) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8287#(and (or (<= main_i 80) (<= main_n 24)) (or (< 24 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:51,269 INFO L273 TraceCheckUtils]: 40: Hoare triple {8287#(and (or (<= main_i 80) (<= main_n 24)) (or (< 24 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8287#(and (or (<= main_i 80) (<= main_n 24)) (or (< 24 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:51,270 INFO L273 TraceCheckUtils]: 41: Hoare triple {8287#(and (or (<= main_i 80) (<= main_n 24)) (or (< 24 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8288#(and (or (<= main_i 84) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 24 main_n)))} is VALID [2018-12-18 17:53:51,270 INFO L273 TraceCheckUtils]: 42: Hoare triple {8288#(and (or (<= main_i 84) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 24 main_n)))} assume i <= n * 4; {8288#(and (or (<= main_i 84) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 24 main_n)))} is VALID [2018-12-18 17:53:51,271 INFO L273 TraceCheckUtils]: 43: Hoare triple {8288#(and (or (<= main_i 84) (<= main_n 24)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 24 main_n)))} assume a[i] != 23;i := i + 4; {8289#(and (or (< 24 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 24)))} is VALID [2018-12-18 17:53:51,272 INFO L273 TraceCheckUtils]: 44: Hoare triple {8289#(and (or (< 24 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 24)))} assume i <= n * 4; {8289#(and (or (< 24 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 24)))} is VALID [2018-12-18 17:53:51,273 INFO L273 TraceCheckUtils]: 45: Hoare triple {8289#(and (or (< 24 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 24)))} assume a[i] != 23;i := i + 4; {8290#(and (or (<= main_i 92) (<= main_n 24)) (or (< 24 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:51,274 INFO L273 TraceCheckUtils]: 46: Hoare triple {8290#(and (or (<= main_i 92) (<= main_n 24)) (or (< 24 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {8290#(and (or (<= main_i 92) (<= main_n 24)) (or (< 24 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:53:51,275 INFO L273 TraceCheckUtils]: 47: Hoare triple {8290#(and (or (<= main_i 92) (<= main_n 24)) (or (< 24 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {8291#(and (or (<= main_i 96) (<= main_n 24)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 24 main_n)))} is VALID [2018-12-18 17:53:51,276 INFO L273 TraceCheckUtils]: 48: Hoare triple {8291#(and (or (<= main_i 96) (<= main_n 24)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 24 main_n)))} assume i <= n * 4; {8292#(and (<= main_i 96) (or (< 24 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2018-12-18 17:53:51,277 INFO L273 TraceCheckUtils]: 49: Hoare triple {8292#(and (<= main_i 96) (or (< 24 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {8293#(and (<= main_i 100) (<= 25 main_n))} is VALID [2018-12-18 17:53:51,278 INFO L273 TraceCheckUtils]: 50: Hoare triple {8293#(and (<= main_i 100) (<= 25 main_n))} assume !(i <= n * 4); {8266#false} is VALID [2018-12-18 17:53:51,291 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:53:51,291 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:53:51,291 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:53:51,291 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:53:51,292 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:53:51,292 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:53:51,292 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:53:51,299 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-18 17:53:51,300 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-18 17:53:51,316 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-18 17:53:51,317 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:53:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:53:51,328 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:53:51,336 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:53:51,343 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:53:51,346 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:53:51,346 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:53:51,348 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:53:51,348 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_28]. (and (= (store v_main_a_28 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:53:51,349 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:53:52,559 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:53:52,562 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:53:52,566 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:53:52,567 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:53:52,569 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:53:52,569 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 96 .cse0) (<= main_i 100) (not (= (select main_a 96) 23)) (= 23 (select main_a .cse0)))) [2018-12-18 17:53:52,569 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 96 .cse0) (not (= 96 .cse0)) (<= main_i 100))) [2018-12-18 17:53:52,603 INFO L273 TraceCheckUtils]: 0: Hoare triple {8265#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {8297#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,604 INFO L273 TraceCheckUtils]: 1: Hoare triple {8297#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8301#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:53:52,604 INFO L273 TraceCheckUtils]: 2: Hoare triple {8301#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {8301#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:53:52,605 INFO L273 TraceCheckUtils]: 3: Hoare triple {8301#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {8308#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,605 INFO L273 TraceCheckUtils]: 4: Hoare triple {8308#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8308#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,614 INFO L273 TraceCheckUtils]: 5: Hoare triple {8308#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8315#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:53:52,615 INFO L273 TraceCheckUtils]: 6: Hoare triple {8315#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {8315#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:53:52,615 INFO L273 TraceCheckUtils]: 7: Hoare triple {8315#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {8322#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,616 INFO L273 TraceCheckUtils]: 8: Hoare triple {8322#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8322#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,616 INFO L273 TraceCheckUtils]: 9: Hoare triple {8322#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8329#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,617 INFO L273 TraceCheckUtils]: 10: Hoare triple {8329#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8329#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,617 INFO L273 TraceCheckUtils]: 11: Hoare triple {8329#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8336#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,617 INFO L273 TraceCheckUtils]: 12: Hoare triple {8336#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8336#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,618 INFO L273 TraceCheckUtils]: 13: Hoare triple {8336#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8343#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,618 INFO L273 TraceCheckUtils]: 14: Hoare triple {8343#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8343#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,619 INFO L273 TraceCheckUtils]: 15: Hoare triple {8343#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8350#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,619 INFO L273 TraceCheckUtils]: 16: Hoare triple {8350#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8350#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,620 INFO L273 TraceCheckUtils]: 17: Hoare triple {8350#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8357#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,621 INFO L273 TraceCheckUtils]: 18: Hoare triple {8357#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8357#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,622 INFO L273 TraceCheckUtils]: 19: Hoare triple {8357#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8364#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,622 INFO L273 TraceCheckUtils]: 20: Hoare triple {8364#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8364#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,623 INFO L273 TraceCheckUtils]: 21: Hoare triple {8364#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8371#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,624 INFO L273 TraceCheckUtils]: 22: Hoare triple {8371#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8371#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,624 INFO L273 TraceCheckUtils]: 23: Hoare triple {8371#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8378#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,625 INFO L273 TraceCheckUtils]: 24: Hoare triple {8378#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8378#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,626 INFO L273 TraceCheckUtils]: 25: Hoare triple {8378#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8385#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,626 INFO L273 TraceCheckUtils]: 26: Hoare triple {8385#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8385#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,627 INFO L273 TraceCheckUtils]: 27: Hoare triple {8385#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8392#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,628 INFO L273 TraceCheckUtils]: 28: Hoare triple {8392#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8392#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,629 INFO L273 TraceCheckUtils]: 29: Hoare triple {8392#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8399#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,629 INFO L273 TraceCheckUtils]: 30: Hoare triple {8399#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8399#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,630 INFO L273 TraceCheckUtils]: 31: Hoare triple {8399#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8406#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,631 INFO L273 TraceCheckUtils]: 32: Hoare triple {8406#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8406#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,631 INFO L273 TraceCheckUtils]: 33: Hoare triple {8406#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8413#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,632 INFO L273 TraceCheckUtils]: 34: Hoare triple {8413#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8413#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,633 INFO L273 TraceCheckUtils]: 35: Hoare triple {8413#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8420#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,633 INFO L273 TraceCheckUtils]: 36: Hoare triple {8420#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8420#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,634 INFO L273 TraceCheckUtils]: 37: Hoare triple {8420#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8427#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,635 INFO L273 TraceCheckUtils]: 38: Hoare triple {8427#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8427#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,635 INFO L273 TraceCheckUtils]: 39: Hoare triple {8427#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8434#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:53:52,636 INFO L273 TraceCheckUtils]: 40: Hoare triple {8434#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {8434#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:53:52,637 INFO L273 TraceCheckUtils]: 41: Hoare triple {8434#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {8441#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,637 INFO L273 TraceCheckUtils]: 42: Hoare triple {8441#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8441#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,638 INFO L273 TraceCheckUtils]: 43: Hoare triple {8441#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8448#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,639 INFO L273 TraceCheckUtils]: 44: Hoare triple {8448#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8448#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,640 INFO L273 TraceCheckUtils]: 45: Hoare triple {8448#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8455#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,640 INFO L273 TraceCheckUtils]: 46: Hoare triple {8455#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8455#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,641 INFO L273 TraceCheckUtils]: 47: Hoare triple {8455#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8462#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,642 INFO L273 TraceCheckUtils]: 48: Hoare triple {8462#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8466#(and (= main_i 96) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:53:52,643 INFO L273 TraceCheckUtils]: 49: Hoare triple {8466#(and (= main_i 96) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8293#(and (<= main_i 100) (<= 25 main_n))} is VALID [2018-12-18 17:53:52,643 INFO L273 TraceCheckUtils]: 50: Hoare triple {8293#(and (<= main_i 100) (<= 25 main_n))} assume !(i <= n * 4); {8266#false} is VALID [2018-12-18 17:53:52,651 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:53:52,651 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:53:55,079 INFO L273 TraceCheckUtils]: 50: Hoare triple {8473#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {8266#false} is VALID [2018-12-18 17:53:55,080 INFO L273 TraceCheckUtils]: 49: Hoare triple {8477#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {8473#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:53:55,081 INFO L273 TraceCheckUtils]: 48: Hoare triple {8481#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {8477#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:53:55,082 INFO L273 TraceCheckUtils]: 47: Hoare triple {8485#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {8481#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:53:55,083 INFO L273 TraceCheckUtils]: 46: Hoare triple {8485#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {8485#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:53:55,084 INFO L273 TraceCheckUtils]: 45: Hoare triple {8492#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {8485#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:53:55,084 INFO L273 TraceCheckUtils]: 44: Hoare triple {8492#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {8492#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:53:55,085 INFO L273 TraceCheckUtils]: 43: Hoare triple {8499#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {8492#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:53:55,086 INFO L273 TraceCheckUtils]: 42: Hoare triple {8499#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {8499#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:53:55,087 INFO L273 TraceCheckUtils]: 41: Hoare triple {8506#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {8499#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:53:55,088 INFO L273 TraceCheckUtils]: 40: Hoare triple {8506#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {8506#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:53:55,089 INFO L273 TraceCheckUtils]: 39: Hoare triple {8513#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8506#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:53:55,089 INFO L273 TraceCheckUtils]: 38: Hoare triple {8513#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {8513#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:53:55,090 INFO L273 TraceCheckUtils]: 37: Hoare triple {8520#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {8513#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:53:55,091 INFO L273 TraceCheckUtils]: 36: Hoare triple {8520#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {8520#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:53:55,092 INFO L273 TraceCheckUtils]: 35: Hoare triple {8527#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8520#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:53:55,092 INFO L273 TraceCheckUtils]: 34: Hoare triple {8527#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {8527#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:53:55,093 INFO L273 TraceCheckUtils]: 33: Hoare triple {8534#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8527#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:53:55,094 INFO L273 TraceCheckUtils]: 32: Hoare triple {8534#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {8534#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:53:55,095 INFO L273 TraceCheckUtils]: 31: Hoare triple {8541#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8534#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:53:55,096 INFO L273 TraceCheckUtils]: 30: Hoare triple {8541#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {8541#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:53:55,097 INFO L273 TraceCheckUtils]: 29: Hoare triple {8548#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {8541#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:53:55,097 INFO L273 TraceCheckUtils]: 28: Hoare triple {8548#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {8548#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:53:55,098 INFO L273 TraceCheckUtils]: 27: Hoare triple {8555#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8548#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:53:55,099 INFO L273 TraceCheckUtils]: 26: Hoare triple {8555#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {8555#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:53:55,100 INFO L273 TraceCheckUtils]: 25: Hoare triple {8562#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8555#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:53:55,100 INFO L273 TraceCheckUtils]: 24: Hoare triple {8562#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {8562#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:53:55,101 INFO L273 TraceCheckUtils]: 23: Hoare triple {8569#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {8562#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:53:55,102 INFO L273 TraceCheckUtils]: 22: Hoare triple {8569#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {8569#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:53:55,103 INFO L273 TraceCheckUtils]: 21: Hoare triple {8576#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8569#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:53:55,103 INFO L273 TraceCheckUtils]: 20: Hoare triple {8576#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {8576#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:53:55,105 INFO L273 TraceCheckUtils]: 19: Hoare triple {8583#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {8576#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:53:55,105 INFO L273 TraceCheckUtils]: 18: Hoare triple {8583#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {8583#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:53:55,106 INFO L273 TraceCheckUtils]: 17: Hoare triple {8590#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {8583#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:53:55,107 INFO L273 TraceCheckUtils]: 16: Hoare triple {8590#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {8590#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:53:55,108 INFO L273 TraceCheckUtils]: 15: Hoare triple {8597#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {8590#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:53:55,108 INFO L273 TraceCheckUtils]: 14: Hoare triple {8597#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {8597#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:53:55,109 INFO L273 TraceCheckUtils]: 13: Hoare triple {8604#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {8597#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:53:55,110 INFO L273 TraceCheckUtils]: 12: Hoare triple {8604#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {8604#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:53:55,111 INFO L273 TraceCheckUtils]: 11: Hoare triple {8611#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {8604#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:53:55,111 INFO L273 TraceCheckUtils]: 10: Hoare triple {8611#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {8611#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:53:55,112 INFO L273 TraceCheckUtils]: 9: Hoare triple {8618#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {8611#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:53:55,113 INFO L273 TraceCheckUtils]: 8: Hoare triple {8618#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {8618#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:53:55,114 INFO L273 TraceCheckUtils]: 7: Hoare triple {8625#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8618#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:53:55,115 INFO L273 TraceCheckUtils]: 6: Hoare triple {8625#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {8625#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:53:55,116 INFO L273 TraceCheckUtils]: 5: Hoare triple {8632#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8625#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:53:55,116 INFO L273 TraceCheckUtils]: 4: Hoare triple {8632#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {8632#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:53:55,117 INFO L273 TraceCheckUtils]: 3: Hoare triple {8639#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {8632#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:53:55,118 INFO L273 TraceCheckUtils]: 2: Hoare triple {8639#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {8639#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:53:55,119 INFO L273 TraceCheckUtils]: 1: Hoare triple {8646#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {8639#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:53:55,120 INFO L273 TraceCheckUtils]: 0: Hoare triple {8265#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {8646#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:53:55,130 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:53:55,148 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:53:55,148 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 80 [2018-12-18 17:53:55,148 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:53:55,149 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 51 [2018-12-18 17:53:55,149 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:53:55,149 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 55 states. [2018-12-18 17:53:55,353 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:53:55,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-12-18 17:53:55,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-12-18 17:53:55,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=872, Invalid=5770, Unknown=0, NotChecked=0, Total=6642 [2018-12-18 17:53:55,354 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 55 states. [2018-12-18 17:54:00,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:54:00,480 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2018-12-18 17:54:00,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-12-18 17:54:00,480 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 51 [2018-12-18 17:54:00,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:54:00,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-12-18 17:54:00,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 56 transitions. [2018-12-18 17:54:00,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-12-18 17:54:00,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 56 transitions. [2018-12-18 17:54:00,484 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 29 states and 56 transitions. [2018-12-18 17:54:00,544 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 56 edges. 56 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:54:00,545 INFO L225 Difference]: With dead ends: 56 [2018-12-18 17:54:00,545 INFO L226 Difference]: Without dead ends: 55 [2018-12-18 17:54:00,546 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1508 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=872, Invalid=5770, Unknown=0, NotChecked=0, Total=6642 [2018-12-18 17:54:00,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-12-18 17:54:00,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2018-12-18 17:54:00,594 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:54:00,594 INFO L82 GeneralOperation]: Start isEquivalent. First operand 55 states. Second operand 54 states. [2018-12-18 17:54:00,594 INFO L74 IsIncluded]: Start isIncluded. First operand 55 states. Second operand 54 states. [2018-12-18 17:54:00,594 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 54 states. [2018-12-18 17:54:00,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:54:00,595 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2018-12-18 17:54:00,596 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2018-12-18 17:54:00,596 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:54:00,596 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:54:00,596 INFO L74 IsIncluded]: Start isIncluded. First operand 54 states. Second operand 55 states. [2018-12-18 17:54:00,596 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 55 states. [2018-12-18 17:54:00,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:54:00,597 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2018-12-18 17:54:00,597 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2018-12-18 17:54:00,597 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:54:00,597 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:54:00,598 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:54:00,598 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:54:00,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-12-18 17:54:00,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2018-12-18 17:54:00,598 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 51 [2018-12-18 17:54:00,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:54:00,599 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2018-12-18 17:54:00,599 INFO L481 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-12-18 17:54:00,599 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2018-12-18 17:54:00,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-12-18 17:54:00,599 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:54:00,599 INFO L402 BasicCegarLoop]: trace histogram [26, 25, 1, 1] [2018-12-18 17:54:00,600 INFO L423 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:54:00,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:54:00,600 INFO L82 PathProgramCache]: Analyzing trace with hash 893088082, now seen corresponding path program 25 times [2018-12-18 17:54:00,600 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:54:00,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:54:00,601 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:54:00,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:54:00,601 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:54:00,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:54:01,967 INFO L273 TraceCheckUtils]: 0: Hoare triple {8922#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {8924#(and (or (<= main_n 25) (<= main_i 0)) (or (<= 0 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:01,968 INFO L273 TraceCheckUtils]: 1: Hoare triple {8924#(and (or (<= main_n 25) (<= main_i 0)) (or (<= 0 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8925#(and (or (< 25 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 4)))} is VALID [2018-12-18 17:54:01,969 INFO L273 TraceCheckUtils]: 2: Hoare triple {8925#(and (or (< 25 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 4)))} assume i <= n * 4; {8925#(and (or (< 25 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 4)))} is VALID [2018-12-18 17:54:01,970 INFO L273 TraceCheckUtils]: 3: Hoare triple {8925#(and (or (< 25 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {8926#(and (or (<= main_i 8) (<= main_n 25)) (or (<= 8 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:01,971 INFO L273 TraceCheckUtils]: 4: Hoare triple {8926#(and (or (<= main_i 8) (<= main_n 25)) (or (<= 8 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8926#(and (or (<= main_i 8) (<= main_n 25)) (or (<= 8 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:01,972 INFO L273 TraceCheckUtils]: 5: Hoare triple {8926#(and (or (<= main_i 8) (<= main_n 25)) (or (<= 8 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8927#(and (or (< 25 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 12)))} is VALID [2018-12-18 17:54:01,973 INFO L273 TraceCheckUtils]: 6: Hoare triple {8927#(and (or (< 25 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 12)))} assume i <= n * 4; {8927#(and (or (< 25 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 12)))} is VALID [2018-12-18 17:54:01,974 INFO L273 TraceCheckUtils]: 7: Hoare triple {8927#(and (or (< 25 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {8928#(and (or (<= main_n 25) (<= main_i 16)) (or (<= 16 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:01,974 INFO L273 TraceCheckUtils]: 8: Hoare triple {8928#(and (or (<= main_n 25) (<= main_i 16)) (or (<= 16 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8928#(and (or (<= main_n 25) (<= main_i 16)) (or (<= 16 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:01,975 INFO L273 TraceCheckUtils]: 9: Hoare triple {8928#(and (or (<= main_n 25) (<= main_i 16)) (or (<= 16 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8929#(and (or (< 25 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 20)))} is VALID [2018-12-18 17:54:01,976 INFO L273 TraceCheckUtils]: 10: Hoare triple {8929#(and (or (< 25 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 20)))} assume i <= n * 4; {8929#(and (or (< 25 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 20)))} is VALID [2018-12-18 17:54:01,977 INFO L273 TraceCheckUtils]: 11: Hoare triple {8929#(and (or (< 25 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {8930#(and (or (<= main_n 25) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 25 main_n)))} is VALID [2018-12-18 17:54:01,978 INFO L273 TraceCheckUtils]: 12: Hoare triple {8930#(and (or (<= main_n 25) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 25 main_n)))} assume i <= n * 4; {8930#(and (or (<= main_n 25) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 25 main_n)))} is VALID [2018-12-18 17:54:01,979 INFO L273 TraceCheckUtils]: 13: Hoare triple {8930#(and (or (<= main_n 25) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 25 main_n)))} assume a[i] != 23;i := i + 4; {8931#(and (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 28)))} is VALID [2018-12-18 17:54:01,980 INFO L273 TraceCheckUtils]: 14: Hoare triple {8931#(and (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 28)))} assume i <= n * 4; {8931#(and (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 28)))} is VALID [2018-12-18 17:54:01,981 INFO L273 TraceCheckUtils]: 15: Hoare triple {8931#(and (= 23 (select main_a (* 4 main_n))) (or (<= 28 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {8932#(and (or (<= 32 main_i) (< 25 main_n)) (or (<= main_i 32) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:01,982 INFO L273 TraceCheckUtils]: 16: Hoare triple {8932#(and (or (<= 32 main_i) (< 25 main_n)) (or (<= main_i 32) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8932#(and (or (<= 32 main_i) (< 25 main_n)) (or (<= main_i 32) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:01,983 INFO L273 TraceCheckUtils]: 17: Hoare triple {8932#(and (or (<= 32 main_i) (< 25 main_n)) (or (<= main_i 32) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8933#(and (or (< 25 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:01,983 INFO L273 TraceCheckUtils]: 18: Hoare triple {8933#(and (or (< 25 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8933#(and (or (< 25 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:01,984 INFO L273 TraceCheckUtils]: 19: Hoare triple {8933#(and (or (< 25 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8934#(and (or (<= main_i 40) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 25 main_n)))} is VALID [2018-12-18 17:54:01,985 INFO L273 TraceCheckUtils]: 20: Hoare triple {8934#(and (or (<= main_i 40) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 25 main_n)))} assume i <= n * 4; {8934#(and (or (<= main_i 40) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 25 main_n)))} is VALID [2018-12-18 17:54:01,986 INFO L273 TraceCheckUtils]: 21: Hoare triple {8934#(and (or (<= main_i 40) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 25 main_n)))} assume a[i] != 23;i := i + 4; {8935#(and (or (<= 44 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:01,987 INFO L273 TraceCheckUtils]: 22: Hoare triple {8935#(and (or (<= 44 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8935#(and (or (<= 44 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:01,988 INFO L273 TraceCheckUtils]: 23: Hoare triple {8935#(and (or (<= 44 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8936#(and (or (<= main_n 25) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 25 main_n)))} is VALID [2018-12-18 17:54:01,989 INFO L273 TraceCheckUtils]: 24: Hoare triple {8936#(and (or (<= main_n 25) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 25 main_n)))} assume i <= n * 4; {8936#(and (or (<= main_n 25) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 25 main_n)))} is VALID [2018-12-18 17:54:01,990 INFO L273 TraceCheckUtils]: 25: Hoare triple {8936#(and (or (<= main_n 25) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 25 main_n)))} assume a[i] != 23;i := i + 4; {8937#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 25)) (or (< 25 main_n) (<= 52 main_i)))} is VALID [2018-12-18 17:54:01,991 INFO L273 TraceCheckUtils]: 26: Hoare triple {8937#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 25)) (or (< 25 main_n) (<= 52 main_i)))} assume i <= n * 4; {8937#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 25)) (or (< 25 main_n) (<= 52 main_i)))} is VALID [2018-12-18 17:54:01,992 INFO L273 TraceCheckUtils]: 27: Hoare triple {8937#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 25)) (or (< 25 main_n) (<= 52 main_i)))} assume a[i] != 23;i := i + 4; {8938#(and (or (<= main_n 25) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (<= 56 main_i) (< 25 main_n)))} is VALID [2018-12-18 17:54:01,992 INFO L273 TraceCheckUtils]: 28: Hoare triple {8938#(and (or (<= main_n 25) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (<= 56 main_i) (< 25 main_n)))} assume i <= n * 4; {8938#(and (or (<= main_n 25) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (<= 56 main_i) (< 25 main_n)))} is VALID [2018-12-18 17:54:01,993 INFO L273 TraceCheckUtils]: 29: Hoare triple {8938#(and (or (<= main_n 25) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))) (or (<= 56 main_i) (< 25 main_n)))} assume a[i] != 23;i := i + 4; {8939#(and (or (<= 60 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:01,994 INFO L273 TraceCheckUtils]: 30: Hoare triple {8939#(and (or (<= 60 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8939#(and (or (<= 60 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:01,995 INFO L273 TraceCheckUtils]: 31: Hoare triple {8939#(and (or (<= 60 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8940#(and (or (<= 64 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:01,996 INFO L273 TraceCheckUtils]: 32: Hoare triple {8940#(and (or (<= 64 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8940#(and (or (<= 64 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:01,997 INFO L273 TraceCheckUtils]: 33: Hoare triple {8940#(and (or (<= 64 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 64)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8941#(and (or (< 25 main_n) (<= 68 main_i)) (or (<= main_n 25) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:01,998 INFO L273 TraceCheckUtils]: 34: Hoare triple {8941#(and (or (< 25 main_n) (<= 68 main_i)) (or (<= main_n 25) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8941#(and (or (< 25 main_n) (<= 68 main_i)) (or (<= main_n 25) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:01,999 INFO L273 TraceCheckUtils]: 35: Hoare triple {8941#(and (or (< 25 main_n) (<= 68 main_i)) (or (<= main_n 25) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8942#(and (or (<= 72 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:02,000 INFO L273 TraceCheckUtils]: 36: Hoare triple {8942#(and (or (<= 72 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8942#(and (or (<= 72 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:02,001 INFO L273 TraceCheckUtils]: 37: Hoare triple {8942#(and (or (<= 72 main_i) (< 25 main_n)) (or (<= main_n 25) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8943#(and (or (<= 76 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 25)))} is VALID [2018-12-18 17:54:02,001 INFO L273 TraceCheckUtils]: 38: Hoare triple {8943#(and (or (<= 76 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 25)))} assume i <= n * 4; {8943#(and (or (<= 76 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 25)))} is VALID [2018-12-18 17:54:02,002 INFO L273 TraceCheckUtils]: 39: Hoare triple {8943#(and (or (<= 76 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 25)))} assume a[i] != 23;i := i + 4; {8944#(and (or (<= 80 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 80)))} is VALID [2018-12-18 17:54:02,003 INFO L273 TraceCheckUtils]: 40: Hoare triple {8944#(and (or (<= 80 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 80)))} assume i <= n * 4; {8944#(and (or (<= 80 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 80)))} is VALID [2018-12-18 17:54:02,004 INFO L273 TraceCheckUtils]: 41: Hoare triple {8944#(and (or (<= 80 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 25) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {8945#(and (or (<= main_i 84) (<= main_n 25)) (or (< 25 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:02,005 INFO L273 TraceCheckUtils]: 42: Hoare triple {8945#(and (or (<= main_i 84) (<= main_n 25)) (or (< 25 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8945#(and (or (<= main_i 84) (<= main_n 25)) (or (< 25 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:02,006 INFO L273 TraceCheckUtils]: 43: Hoare triple {8945#(and (or (<= main_i 84) (<= main_n 25)) (or (< 25 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8946#(and (or (<= main_i 88) (<= main_n 25)) (or (<= 88 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:02,007 INFO L273 TraceCheckUtils]: 44: Hoare triple {8946#(and (or (<= main_i 88) (<= main_n 25)) (or (<= 88 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8946#(and (or (<= main_i 88) (<= main_n 25)) (or (<= 88 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:02,008 INFO L273 TraceCheckUtils]: 45: Hoare triple {8946#(and (or (<= main_i 88) (<= main_n 25)) (or (<= 88 main_i) (< 25 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8947#(and (or (< 25 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:02,008 INFO L273 TraceCheckUtils]: 46: Hoare triple {8947#(and (or (< 25 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8947#(and (or (< 25 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:02,010 INFO L273 TraceCheckUtils]: 47: Hoare triple {8947#(and (or (< 25 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8948#(and (or (<= 96 main_i) (< 25 main_n)) (or (<= main_i 96) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:02,010 INFO L273 TraceCheckUtils]: 48: Hoare triple {8948#(and (or (<= 96 main_i) (< 25 main_n)) (or (<= main_i 96) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8948#(and (or (<= 96 main_i) (< 25 main_n)) (or (<= main_i 96) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:02,012 INFO L273 TraceCheckUtils]: 49: Hoare triple {8948#(and (or (<= 96 main_i) (< 25 main_n)) (or (<= main_i 96) (<= main_n 25)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8949#(and (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 25 main_n)) (or (<= main_i 100) (<= main_n 25)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2018-12-18 17:54:02,012 INFO L273 TraceCheckUtils]: 50: Hoare triple {8949#(and (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 25 main_n)) (or (<= main_i 100) (<= main_n 25)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {8950#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 100) (< 25 main_n))))} is VALID [2018-12-18 17:54:02,013 INFO L273 TraceCheckUtils]: 51: Hoare triple {8950#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 100) (< 25 main_n))))} assume a[i] != 23;i := i + 4; {8951#(and (<= main_i 104) (< 25 main_n))} is VALID [2018-12-18 17:54:02,014 INFO L273 TraceCheckUtils]: 52: Hoare triple {8951#(and (<= main_i 104) (< 25 main_n))} assume !(i <= n * 4); {8923#false} is VALID [2018-12-18 17:54:02,027 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:54:02,027 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:54:02,027 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:54:02,027 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:54:02,027 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:54:02,027 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:54:02,027 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:54:02,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:54:02,037 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-18 17:54:02,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:54:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:54:02,075 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:54:02,089 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:54:02,091 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:54:02,101 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:54:02,101 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:54:02,102 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:54:02,103 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_29]. (and (= (store v_main_a_29 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:54:02,103 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:54:03,390 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:54:03,392 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:54:03,398 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:54:03,398 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:54:03,401 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:54:03,401 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 104) (not (= (select main_a 100) 23)) (= 23 (select main_a .cse0)) (<= 100 .cse0))) [2018-12-18 17:54:03,401 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 104) (not (= 100 .cse0)) (<= 100 .cse0))) [2018-12-18 17:54:03,437 INFO L273 TraceCheckUtils]: 0: Hoare triple {8922#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {8955#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,438 INFO L273 TraceCheckUtils]: 1: Hoare triple {8955#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8959#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:54:03,438 INFO L273 TraceCheckUtils]: 2: Hoare triple {8959#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {8959#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:54:03,439 INFO L273 TraceCheckUtils]: 3: Hoare triple {8959#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {8966#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,439 INFO L273 TraceCheckUtils]: 4: Hoare triple {8966#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8966#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,440 INFO L273 TraceCheckUtils]: 5: Hoare triple {8966#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8973#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:54:03,441 INFO L273 TraceCheckUtils]: 6: Hoare triple {8973#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {8973#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:54:03,441 INFO L273 TraceCheckUtils]: 7: Hoare triple {8973#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {8980#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,442 INFO L273 TraceCheckUtils]: 8: Hoare triple {8980#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8980#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,443 INFO L273 TraceCheckUtils]: 9: Hoare triple {8980#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8987#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,444 INFO L273 TraceCheckUtils]: 10: Hoare triple {8987#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8987#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,444 INFO L273 TraceCheckUtils]: 11: Hoare triple {8987#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8994#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,445 INFO L273 TraceCheckUtils]: 12: Hoare triple {8994#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {8994#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,446 INFO L273 TraceCheckUtils]: 13: Hoare triple {8994#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9001#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,446 INFO L273 TraceCheckUtils]: 14: Hoare triple {9001#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9001#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,447 INFO L273 TraceCheckUtils]: 15: Hoare triple {9001#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9008#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,448 INFO L273 TraceCheckUtils]: 16: Hoare triple {9008#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9008#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,448 INFO L273 TraceCheckUtils]: 17: Hoare triple {9008#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9015#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,449 INFO L273 TraceCheckUtils]: 18: Hoare triple {9015#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9015#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,450 INFO L273 TraceCheckUtils]: 19: Hoare triple {9015#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9022#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,451 INFO L273 TraceCheckUtils]: 20: Hoare triple {9022#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9022#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,451 INFO L273 TraceCheckUtils]: 21: Hoare triple {9022#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9029#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,452 INFO L273 TraceCheckUtils]: 22: Hoare triple {9029#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9029#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,453 INFO L273 TraceCheckUtils]: 23: Hoare triple {9029#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9036#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,453 INFO L273 TraceCheckUtils]: 24: Hoare triple {9036#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9036#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,454 INFO L273 TraceCheckUtils]: 25: Hoare triple {9036#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9043#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,455 INFO L273 TraceCheckUtils]: 26: Hoare triple {9043#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9043#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,455 INFO L273 TraceCheckUtils]: 27: Hoare triple {9043#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9050#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,456 INFO L273 TraceCheckUtils]: 28: Hoare triple {9050#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9050#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,457 INFO L273 TraceCheckUtils]: 29: Hoare triple {9050#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9057#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,457 INFO L273 TraceCheckUtils]: 30: Hoare triple {9057#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9057#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,458 INFO L273 TraceCheckUtils]: 31: Hoare triple {9057#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9064#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,459 INFO L273 TraceCheckUtils]: 32: Hoare triple {9064#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9064#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,460 INFO L273 TraceCheckUtils]: 33: Hoare triple {9064#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9071#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,460 INFO L273 TraceCheckUtils]: 34: Hoare triple {9071#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9071#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,461 INFO L273 TraceCheckUtils]: 35: Hoare triple {9071#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9078#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,462 INFO L273 TraceCheckUtils]: 36: Hoare triple {9078#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9078#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,462 INFO L273 TraceCheckUtils]: 37: Hoare triple {9078#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9085#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,463 INFO L273 TraceCheckUtils]: 38: Hoare triple {9085#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9085#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,464 INFO L273 TraceCheckUtils]: 39: Hoare triple {9085#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:54:03,464 INFO L273 TraceCheckUtils]: 40: Hoare triple {9092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {9092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:54:03,465 INFO L273 TraceCheckUtils]: 41: Hoare triple {9092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {9099#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,466 INFO L273 TraceCheckUtils]: 42: Hoare triple {9099#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9099#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,467 INFO L273 TraceCheckUtils]: 43: Hoare triple {9099#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9106#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,467 INFO L273 TraceCheckUtils]: 44: Hoare triple {9106#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9106#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,468 INFO L273 TraceCheckUtils]: 45: Hoare triple {9106#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9113#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,469 INFO L273 TraceCheckUtils]: 46: Hoare triple {9113#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9113#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,469 INFO L273 TraceCheckUtils]: 47: Hoare triple {9113#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9120#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,470 INFO L273 TraceCheckUtils]: 48: Hoare triple {9120#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9120#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,471 INFO L273 TraceCheckUtils]: 49: Hoare triple {9120#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9127#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,471 INFO L273 TraceCheckUtils]: 50: Hoare triple {9127#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9131#(and (= main_i 100) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:03,472 INFO L273 TraceCheckUtils]: 51: Hoare triple {9131#(and (= main_i 100) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {8951#(and (<= main_i 104) (< 25 main_n))} is VALID [2018-12-18 17:54:03,473 INFO L273 TraceCheckUtils]: 52: Hoare triple {8951#(and (<= main_i 104) (< 25 main_n))} assume !(i <= n * 4); {8923#false} is VALID [2018-12-18 17:54:03,481 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:54:03,481 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:54:05,771 INFO L273 TraceCheckUtils]: 52: Hoare triple {9138#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {8923#false} is VALID [2018-12-18 17:54:05,772 INFO L273 TraceCheckUtils]: 51: Hoare triple {9142#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {9138#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:54:05,772 INFO L273 TraceCheckUtils]: 50: Hoare triple {9146#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {9142#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:54:05,773 INFO L273 TraceCheckUtils]: 49: Hoare triple {9150#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {9146#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:54:05,773 INFO L273 TraceCheckUtils]: 48: Hoare triple {9150#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {9150#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:54:05,774 INFO L273 TraceCheckUtils]: 47: Hoare triple {9157#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {9150#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:54:05,774 INFO L273 TraceCheckUtils]: 46: Hoare triple {9157#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {9157#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:54:05,775 INFO L273 TraceCheckUtils]: 45: Hoare triple {9164#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {9157#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:54:05,776 INFO L273 TraceCheckUtils]: 44: Hoare triple {9164#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {9164#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:54:05,777 INFO L273 TraceCheckUtils]: 43: Hoare triple {9171#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {9164#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:54:05,777 INFO L273 TraceCheckUtils]: 42: Hoare triple {9171#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {9171#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:54:05,778 INFO L273 TraceCheckUtils]: 41: Hoare triple {9178#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9171#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:54:05,779 INFO L273 TraceCheckUtils]: 40: Hoare triple {9178#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {9178#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:54:05,780 INFO L273 TraceCheckUtils]: 39: Hoare triple {9185#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {9178#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:54:05,781 INFO L273 TraceCheckUtils]: 38: Hoare triple {9185#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {9185#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:54:05,782 INFO L273 TraceCheckUtils]: 37: Hoare triple {9192#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9185#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:54:05,782 INFO L273 TraceCheckUtils]: 36: Hoare triple {9192#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {9192#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:54:05,783 INFO L273 TraceCheckUtils]: 35: Hoare triple {9199#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9192#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:54:05,784 INFO L273 TraceCheckUtils]: 34: Hoare triple {9199#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {9199#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:54:05,785 INFO L273 TraceCheckUtils]: 33: Hoare triple {9206#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9199#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:54:05,785 INFO L273 TraceCheckUtils]: 32: Hoare triple {9206#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {9206#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:54:05,786 INFO L273 TraceCheckUtils]: 31: Hoare triple {9213#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {9206#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:54:05,787 INFO L273 TraceCheckUtils]: 30: Hoare triple {9213#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {9213#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:54:05,788 INFO L273 TraceCheckUtils]: 29: Hoare triple {9220#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9213#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:54:05,789 INFO L273 TraceCheckUtils]: 28: Hoare triple {9220#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {9220#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:54:05,790 INFO L273 TraceCheckUtils]: 27: Hoare triple {9227#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9220#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:54:05,790 INFO L273 TraceCheckUtils]: 26: Hoare triple {9227#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {9227#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:54:05,791 INFO L273 TraceCheckUtils]: 25: Hoare triple {9234#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {9227#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:54:05,792 INFO L273 TraceCheckUtils]: 24: Hoare triple {9234#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {9234#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:54:05,793 INFO L273 TraceCheckUtils]: 23: Hoare triple {9241#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9234#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:54:05,793 INFO L273 TraceCheckUtils]: 22: Hoare triple {9241#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {9241#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:54:05,794 INFO L273 TraceCheckUtils]: 21: Hoare triple {9248#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {9241#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:54:05,795 INFO L273 TraceCheckUtils]: 20: Hoare triple {9248#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {9248#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:54:05,796 INFO L273 TraceCheckUtils]: 19: Hoare triple {9255#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {9248#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:54:05,797 INFO L273 TraceCheckUtils]: 18: Hoare triple {9255#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {9255#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:54:05,798 INFO L273 TraceCheckUtils]: 17: Hoare triple {9262#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {9255#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:54:05,798 INFO L273 TraceCheckUtils]: 16: Hoare triple {9262#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {9262#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:54:05,799 INFO L273 TraceCheckUtils]: 15: Hoare triple {9269#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {9262#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:54:05,800 INFO L273 TraceCheckUtils]: 14: Hoare triple {9269#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {9269#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:54:05,801 INFO L273 TraceCheckUtils]: 13: Hoare triple {9276#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {9269#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:54:05,801 INFO L273 TraceCheckUtils]: 12: Hoare triple {9276#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {9276#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:54:05,802 INFO L273 TraceCheckUtils]: 11: Hoare triple {9283#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {9276#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:54:05,803 INFO L273 TraceCheckUtils]: 10: Hoare triple {9283#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {9283#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:54:05,804 INFO L273 TraceCheckUtils]: 9: Hoare triple {9290#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9283#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:54:05,805 INFO L273 TraceCheckUtils]: 8: Hoare triple {9290#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {9290#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:54:05,806 INFO L273 TraceCheckUtils]: 7: Hoare triple {9297#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9290#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:54:05,806 INFO L273 TraceCheckUtils]: 6: Hoare triple {9297#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {9297#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:54:05,807 INFO L273 TraceCheckUtils]: 5: Hoare triple {9304#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9297#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:54:05,808 INFO L273 TraceCheckUtils]: 4: Hoare triple {9304#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {9304#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:54:05,809 INFO L273 TraceCheckUtils]: 3: Hoare triple {9311#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {9304#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:54:05,809 INFO L273 TraceCheckUtils]: 2: Hoare triple {9311#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {9311#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:54:05,810 INFO L273 TraceCheckUtils]: 1: Hoare triple {9318#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9311#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:54:05,811 INFO L273 TraceCheckUtils]: 0: Hoare triple {8922#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {9318#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:54:05,823 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:54:05,842 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:54:05,842 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 83 [2018-12-18 17:54:05,842 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:54:05,843 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 53 [2018-12-18 17:54:05,843 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:54:05,843 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 57 states. [2018-12-18 17:54:05,962 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 105 edges. 105 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:54:05,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 57 states [2018-12-18 17:54:05,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2018-12-18 17:54:05,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=932, Invalid=6208, Unknown=0, NotChecked=0, Total=7140 [2018-12-18 17:54:05,964 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 57 states. [2018-12-18 17:54:11,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:54:11,505 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2018-12-18 17:54:11,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-12-18 17:54:11,505 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 53 [2018-12-18 17:54:11,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:54:11,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-12-18 17:54:11,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 58 transitions. [2018-12-18 17:54:11,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-12-18 17:54:11,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 58 transitions. [2018-12-18 17:54:11,508 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 30 states and 58 transitions. [2018-12-18 17:54:11,568 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 58 edges. 58 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:54:11,569 INFO L225 Difference]: With dead ends: 58 [2018-12-18 17:54:11,570 INFO L226 Difference]: Without dead ends: 57 [2018-12-18 17:54:11,570 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1620 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=932, Invalid=6208, Unknown=0, NotChecked=0, Total=7140 [2018-12-18 17:54:11,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-12-18 17:54:11,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2018-12-18 17:54:11,627 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:54:11,627 INFO L82 GeneralOperation]: Start isEquivalent. First operand 57 states. Second operand 56 states. [2018-12-18 17:54:11,627 INFO L74 IsIncluded]: Start isIncluded. First operand 57 states. Second operand 56 states. [2018-12-18 17:54:11,627 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 56 states. [2018-12-18 17:54:11,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:54:11,629 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2018-12-18 17:54:11,629 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2018-12-18 17:54:11,629 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:54:11,629 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:54:11,629 INFO L74 IsIncluded]: Start isIncluded. First operand 56 states. Second operand 57 states. [2018-12-18 17:54:11,629 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 57 states. [2018-12-18 17:54:11,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:54:11,630 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2018-12-18 17:54:11,630 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2018-12-18 17:54:11,630 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:54:11,630 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:54:11,630 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:54:11,630 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:54:11,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-12-18 17:54:11,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2018-12-18 17:54:11,631 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 53 [2018-12-18 17:54:11,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:54:11,631 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2018-12-18 17:54:11,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has 57 states. [2018-12-18 17:54:11,632 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2018-12-18 17:54:11,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-12-18 17:54:11,632 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:54:11,632 INFO L402 BasicCegarLoop]: trace histogram [27, 26, 1, 1] [2018-12-18 17:54:11,632 INFO L423 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:54:11,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:54:11,632 INFO L82 PathProgramCache]: Analyzing trace with hash -735811308, now seen corresponding path program 26 times [2018-12-18 17:54:11,632 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:54:11,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:54:11,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:54:11,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:54:11,633 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:54:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:54:12,035 WARN L181 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-12-18 17:54:12,452 WARN L181 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-12-18 17:54:13,637 INFO L273 TraceCheckUtils]: 0: Hoare triple {9604#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {9606#(and (or (<= main_n 26) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2018-12-18 17:54:13,638 INFO L273 TraceCheckUtils]: 1: Hoare triple {9606#(and (or (<= main_n 26) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9607#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 26 main_n)) (or (<= main_n 26) (<= main_i 4)))} is VALID [2018-12-18 17:54:13,639 INFO L273 TraceCheckUtils]: 2: Hoare triple {9607#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 26 main_n)) (or (<= main_n 26) (<= main_i 4)))} assume i <= n * 4; {9607#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 26 main_n)) (or (<= main_n 26) (<= main_i 4)))} is VALID [2018-12-18 17:54:13,640 INFO L273 TraceCheckUtils]: 3: Hoare triple {9607#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 26 main_n)) (or (<= main_n 26) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {9608#(and (or (<= main_i 8) (<= main_n 26)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2018-12-18 17:54:13,641 INFO L273 TraceCheckUtils]: 4: Hoare triple {9608#(and (or (<= main_i 8) (<= main_n 26)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9608#(and (or (<= main_i 8) (<= main_n 26)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2018-12-18 17:54:13,642 INFO L273 TraceCheckUtils]: 5: Hoare triple {9608#(and (or (<= main_i 8) (<= main_n 26)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9609#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 12)))} is VALID [2018-12-18 17:54:13,643 INFO L273 TraceCheckUtils]: 6: Hoare triple {9609#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 12)))} assume i <= n * 4; {9609#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 12)))} is VALID [2018-12-18 17:54:13,644 INFO L273 TraceCheckUtils]: 7: Hoare triple {9609#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {9610#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 16)))} is VALID [2018-12-18 17:54:13,644 INFO L273 TraceCheckUtils]: 8: Hoare triple {9610#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 16)))} assume i <= n * 4; {9610#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 16)))} is VALID [2018-12-18 17:54:13,646 INFO L273 TraceCheckUtils]: 9: Hoare triple {9610#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {9611#(and (or (< 26 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 20)))} is VALID [2018-12-18 17:54:13,646 INFO L273 TraceCheckUtils]: 10: Hoare triple {9611#(and (or (< 26 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 20)))} assume i <= n * 4; {9611#(and (or (< 26 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 20)))} is VALID [2018-12-18 17:54:13,647 INFO L273 TraceCheckUtils]: 11: Hoare triple {9611#(and (or (< 26 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {9612#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 24)))} is VALID [2018-12-18 17:54:13,648 INFO L273 TraceCheckUtils]: 12: Hoare triple {9612#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 24)))} assume i <= n * 4; {9612#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 24)))} is VALID [2018-12-18 17:54:13,649 INFO L273 TraceCheckUtils]: 13: Hoare triple {9612#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {9613#(and (or (<= main_n 26) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2018-12-18 17:54:13,650 INFO L273 TraceCheckUtils]: 14: Hoare triple {9613#(and (or (<= main_n 26) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9613#(and (or (<= main_n 26) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2018-12-18 17:54:13,651 INFO L273 TraceCheckUtils]: 15: Hoare triple {9613#(and (or (<= main_n 26) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9614#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 32) (<= main_n 26)))} is VALID [2018-12-18 17:54:13,652 INFO L273 TraceCheckUtils]: 16: Hoare triple {9614#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 32) (<= main_n 26)))} assume i <= n * 4; {9614#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 32) (<= main_n 26)))} is VALID [2018-12-18 17:54:13,653 INFO L273 TraceCheckUtils]: 17: Hoare triple {9614#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 32) (<= main_n 26)))} assume a[i] != 23;i := i + 4; {9615#(and (or (<= main_i 36) (<= main_n 26)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 26 main_n)))} is VALID [2018-12-18 17:54:13,654 INFO L273 TraceCheckUtils]: 18: Hoare triple {9615#(and (or (<= main_i 36) (<= main_n 26)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 26 main_n)))} assume i <= n * 4; {9615#(and (or (<= main_i 36) (<= main_n 26)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 26 main_n)))} is VALID [2018-12-18 17:54:13,655 INFO L273 TraceCheckUtils]: 19: Hoare triple {9615#(and (or (<= main_i 36) (<= main_n 26)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9616#(and (or (< 26 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 26)))} is VALID [2018-12-18 17:54:13,655 INFO L273 TraceCheckUtils]: 20: Hoare triple {9616#(and (or (< 26 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 26)))} assume i <= n * 4; {9616#(and (or (< 26 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 26)))} is VALID [2018-12-18 17:54:13,656 INFO L273 TraceCheckUtils]: 21: Hoare triple {9616#(and (or (< 26 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 26)))} assume a[i] != 23;i := i + 4; {9617#(and (or (<= main_n 26) (<= main_i 44)) (or (< 26 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:54:13,657 INFO L273 TraceCheckUtils]: 22: Hoare triple {9617#(and (or (<= main_n 26) (<= main_i 44)) (or (< 26 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {9617#(and (or (<= main_n 26) (<= main_i 44)) (or (< 26 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:54:13,658 INFO L273 TraceCheckUtils]: 23: Hoare triple {9617#(and (or (<= main_n 26) (<= main_i 44)) (or (< 26 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {9618#(and (or (<= main_n 26) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2018-12-18 17:54:13,659 INFO L273 TraceCheckUtils]: 24: Hoare triple {9618#(and (or (<= main_n 26) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9618#(and (or (<= main_n 26) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2018-12-18 17:54:13,660 INFO L273 TraceCheckUtils]: 25: Hoare triple {9618#(and (or (<= main_n 26) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9619#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 52) (<= main_n 26)))} is VALID [2018-12-18 17:54:13,661 INFO L273 TraceCheckUtils]: 26: Hoare triple {9619#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 52) (<= main_n 26)))} assume i <= n * 4; {9619#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 52) (<= main_n 26)))} is VALID [2018-12-18 17:54:13,662 INFO L273 TraceCheckUtils]: 27: Hoare triple {9619#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 52) (<= main_n 26)))} assume a[i] != 23;i := i + 4; {9620#(and (or (<= main_n 26) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2018-12-18 17:54:13,663 INFO L273 TraceCheckUtils]: 28: Hoare triple {9620#(and (or (<= main_n 26) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9620#(and (or (<= main_n 26) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2018-12-18 17:54:13,664 INFO L273 TraceCheckUtils]: 29: Hoare triple {9620#(and (or (<= main_n 26) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9621#(and (or (< 26 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 60)))} is VALID [2018-12-18 17:54:13,664 INFO L273 TraceCheckUtils]: 30: Hoare triple {9621#(and (or (< 26 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 60)))} assume i <= n * 4; {9621#(and (or (< 26 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 60)))} is VALID [2018-12-18 17:54:13,665 INFO L273 TraceCheckUtils]: 31: Hoare triple {9621#(and (or (< 26 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 26) (<= main_i 60)))} assume a[i] != 23;i := i + 4; {9622#(and (or (<= main_n 26) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2018-12-18 17:54:13,666 INFO L273 TraceCheckUtils]: 32: Hoare triple {9622#(and (or (<= main_n 26) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9622#(and (or (<= main_n 26) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2018-12-18 17:54:13,667 INFO L273 TraceCheckUtils]: 33: Hoare triple {9622#(and (or (<= main_n 26) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9623#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 68)))} is VALID [2018-12-18 17:54:13,668 INFO L273 TraceCheckUtils]: 34: Hoare triple {9623#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 68)))} assume i <= n * 4; {9623#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 68)))} is VALID [2018-12-18 17:54:13,669 INFO L273 TraceCheckUtils]: 35: Hoare triple {9623#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_n 26) (<= main_i 68)))} assume a[i] != 23;i := i + 4; {9624#(and (or (<= main_n 26) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2018-12-18 17:54:13,670 INFO L273 TraceCheckUtils]: 36: Hoare triple {9624#(and (or (<= main_n 26) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9624#(and (or (<= main_n 26) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2018-12-18 17:54:13,671 INFO L273 TraceCheckUtils]: 37: Hoare triple {9624#(and (or (<= main_n 26) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9625#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 76) (<= main_n 26)))} is VALID [2018-12-18 17:54:13,672 INFO L273 TraceCheckUtils]: 38: Hoare triple {9625#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 76) (<= main_n 26)))} assume i <= n * 4; {9625#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 76) (<= main_n 26)))} is VALID [2018-12-18 17:54:13,673 INFO L273 TraceCheckUtils]: 39: Hoare triple {9625#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 76) (<= main_n 26)))} assume a[i] != 23;i := i + 4; {9626#(and (or (<= main_n 26) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2018-12-18 17:54:13,674 INFO L273 TraceCheckUtils]: 40: Hoare triple {9626#(and (or (<= main_n 26) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9626#(and (or (<= main_n 26) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2018-12-18 17:54:13,675 INFO L273 TraceCheckUtils]: 41: Hoare triple {9626#(and (or (<= main_n 26) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9627#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 26 main_n)) (or (<= main_i 84) (<= main_n 26)))} is VALID [2018-12-18 17:54:13,676 INFO L273 TraceCheckUtils]: 42: Hoare triple {9627#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 26 main_n)) (or (<= main_i 84) (<= main_n 26)))} assume i <= n * 4; {9627#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 26 main_n)) (or (<= main_i 84) (<= main_n 26)))} is VALID [2018-12-18 17:54:13,677 INFO L273 TraceCheckUtils]: 43: Hoare triple {9627#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 26 main_n)) (or (<= main_i 84) (<= main_n 26)))} assume a[i] != 23;i := i + 4; {9628#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 88) (<= main_n 26)))} is VALID [2018-12-18 17:54:13,678 INFO L273 TraceCheckUtils]: 44: Hoare triple {9628#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 88) (<= main_n 26)))} assume i <= n * 4; {9628#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 88) (<= main_n 26)))} is VALID [2018-12-18 17:54:13,679 INFO L273 TraceCheckUtils]: 45: Hoare triple {9628#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 88) (<= main_n 26)))} assume a[i] != 23;i := i + 4; {9629#(and (or (<= main_i 92) (<= main_n 26)) (or (< 26 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:54:13,680 INFO L273 TraceCheckUtils]: 46: Hoare triple {9629#(and (or (<= main_i 92) (<= main_n 26)) (or (< 26 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {9629#(and (or (<= main_i 92) (<= main_n 26)) (or (< 26 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:54:13,681 INFO L273 TraceCheckUtils]: 47: Hoare triple {9629#(and (or (<= main_i 92) (<= main_n 26)) (or (< 26 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {9630#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 96) (<= main_n 26)))} is VALID [2018-12-18 17:54:13,681 INFO L273 TraceCheckUtils]: 48: Hoare triple {9630#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 96) (<= main_n 26)))} assume i <= n * 4; {9630#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 96) (<= main_n 26)))} is VALID [2018-12-18 17:54:13,683 INFO L273 TraceCheckUtils]: 49: Hoare triple {9630#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)) (or (<= main_i 96) (<= main_n 26)))} assume a[i] != 23;i := i + 4; {9631#(and (or (<= main_i 100) (<= main_n 26)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2018-12-18 17:54:13,683 INFO L273 TraceCheckUtils]: 50: Hoare triple {9631#(and (or (<= main_i 100) (<= main_n 26)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume i <= n * 4; {9631#(and (or (<= main_i 100) (<= main_n 26)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} is VALID [2018-12-18 17:54:13,684 INFO L273 TraceCheckUtils]: 51: Hoare triple {9631#(and (or (<= main_i 100) (<= main_n 26)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 26 main_n)))} assume a[i] != 23;i := i + 4; {9632#(and (or (<= main_i 104) (<= main_n 26)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 26 main_n)))} is VALID [2018-12-18 17:54:13,685 INFO L273 TraceCheckUtils]: 52: Hoare triple {9632#(and (or (<= main_i 104) (<= main_n 26)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 26 main_n)))} assume i <= n * 4; {9633#(and (<= main_i 104) (or (< 26 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2018-12-18 17:54:13,686 INFO L273 TraceCheckUtils]: 53: Hoare triple {9633#(and (<= main_i 104) (or (< 26 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {9634#(and (< 26 main_n) (<= main_i 108))} is VALID [2018-12-18 17:54:13,687 INFO L273 TraceCheckUtils]: 54: Hoare triple {9634#(and (< 26 main_n) (<= main_i 108))} assume !(i <= n * 4); {9605#false} is VALID [2018-12-18 17:54:13,703 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:54:13,703 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:54:13,703 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:54:13,703 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:54:13,703 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:54:13,703 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:54:13,703 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:54:13,713 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-18 17:54:13,713 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-18 17:54:13,757 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2018-12-18 17:54:13,757 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:54:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:54:13,766 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:54:13,775 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:54:13,778 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:54:13,786 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:54:13,786 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:54:13,788 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:54:13,788 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_30]. (and (= (store v_main_a_30 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:54:13,788 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:54:15,218 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:54:15,221 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:54:15,226 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:54:15,226 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:54:15,228 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:54:15,229 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 104))) (<= 104 .cse0) (= 23 (select main_a .cse0)) (<= main_i 108))) [2018-12-18 17:54:15,229 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 104 .cse0) (not (= 104 .cse0)) (<= main_i 108))) [2018-12-18 17:54:15,264 INFO L273 TraceCheckUtils]: 0: Hoare triple {9604#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {9638#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,265 INFO L273 TraceCheckUtils]: 1: Hoare triple {9638#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9642#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:54:15,265 INFO L273 TraceCheckUtils]: 2: Hoare triple {9642#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {9642#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:54:15,266 INFO L273 TraceCheckUtils]: 3: Hoare triple {9642#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {9649#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,267 INFO L273 TraceCheckUtils]: 4: Hoare triple {9649#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9649#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,268 INFO L273 TraceCheckUtils]: 5: Hoare triple {9649#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9656#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:54:15,268 INFO L273 TraceCheckUtils]: 6: Hoare triple {9656#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {9656#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:54:15,269 INFO L273 TraceCheckUtils]: 7: Hoare triple {9656#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {9663#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,270 INFO L273 TraceCheckUtils]: 8: Hoare triple {9663#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9663#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,270 INFO L273 TraceCheckUtils]: 9: Hoare triple {9663#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9670#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,271 INFO L273 TraceCheckUtils]: 10: Hoare triple {9670#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9670#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,272 INFO L273 TraceCheckUtils]: 11: Hoare triple {9670#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9677#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,272 INFO L273 TraceCheckUtils]: 12: Hoare triple {9677#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9677#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,273 INFO L273 TraceCheckUtils]: 13: Hoare triple {9677#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9684#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,274 INFO L273 TraceCheckUtils]: 14: Hoare triple {9684#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9684#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,274 INFO L273 TraceCheckUtils]: 15: Hoare triple {9684#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9691#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,275 INFO L273 TraceCheckUtils]: 16: Hoare triple {9691#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9691#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,276 INFO L273 TraceCheckUtils]: 17: Hoare triple {9691#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9698#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,277 INFO L273 TraceCheckUtils]: 18: Hoare triple {9698#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9698#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,277 INFO L273 TraceCheckUtils]: 19: Hoare triple {9698#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9705#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,278 INFO L273 TraceCheckUtils]: 20: Hoare triple {9705#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9705#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,279 INFO L273 TraceCheckUtils]: 21: Hoare triple {9705#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9712#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,279 INFO L273 TraceCheckUtils]: 22: Hoare triple {9712#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9712#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,280 INFO L273 TraceCheckUtils]: 23: Hoare triple {9712#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9719#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,281 INFO L273 TraceCheckUtils]: 24: Hoare triple {9719#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9719#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,281 INFO L273 TraceCheckUtils]: 25: Hoare triple {9719#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9726#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,282 INFO L273 TraceCheckUtils]: 26: Hoare triple {9726#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9726#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,283 INFO L273 TraceCheckUtils]: 27: Hoare triple {9726#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9733#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,283 INFO L273 TraceCheckUtils]: 28: Hoare triple {9733#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9733#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,284 INFO L273 TraceCheckUtils]: 29: Hoare triple {9733#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9740#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,285 INFO L273 TraceCheckUtils]: 30: Hoare triple {9740#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9740#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,285 INFO L273 TraceCheckUtils]: 31: Hoare triple {9740#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9747#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,286 INFO L273 TraceCheckUtils]: 32: Hoare triple {9747#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9747#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,287 INFO L273 TraceCheckUtils]: 33: Hoare triple {9747#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9754#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,288 INFO L273 TraceCheckUtils]: 34: Hoare triple {9754#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9754#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,288 INFO L273 TraceCheckUtils]: 35: Hoare triple {9754#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9761#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,289 INFO L273 TraceCheckUtils]: 36: Hoare triple {9761#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9761#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,290 INFO L273 TraceCheckUtils]: 37: Hoare triple {9761#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9768#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,290 INFO L273 TraceCheckUtils]: 38: Hoare triple {9768#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9768#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,291 INFO L273 TraceCheckUtils]: 39: Hoare triple {9768#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9775#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:54:15,292 INFO L273 TraceCheckUtils]: 40: Hoare triple {9775#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {9775#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:54:15,292 INFO L273 TraceCheckUtils]: 41: Hoare triple {9775#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {9782#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,293 INFO L273 TraceCheckUtils]: 42: Hoare triple {9782#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9782#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,294 INFO L273 TraceCheckUtils]: 43: Hoare triple {9782#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9789#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,295 INFO L273 TraceCheckUtils]: 44: Hoare triple {9789#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9789#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,295 INFO L273 TraceCheckUtils]: 45: Hoare triple {9789#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9796#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,296 INFO L273 TraceCheckUtils]: 46: Hoare triple {9796#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9796#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,297 INFO L273 TraceCheckUtils]: 47: Hoare triple {9796#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9803#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,297 INFO L273 TraceCheckUtils]: 48: Hoare triple {9803#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9803#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,298 INFO L273 TraceCheckUtils]: 49: Hoare triple {9803#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9810#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,299 INFO L273 TraceCheckUtils]: 50: Hoare triple {9810#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9810#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,299 INFO L273 TraceCheckUtils]: 51: Hoare triple {9810#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9817#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,300 INFO L273 TraceCheckUtils]: 52: Hoare triple {9817#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {9821#(and (<= main_i (* 4 main_n)) (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:15,301 INFO L273 TraceCheckUtils]: 53: Hoare triple {9821#(and (<= main_i (* 4 main_n)) (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {9634#(and (< 26 main_n) (<= main_i 108))} is VALID [2018-12-18 17:54:15,302 INFO L273 TraceCheckUtils]: 54: Hoare triple {9634#(and (< 26 main_n) (<= main_i 108))} assume !(i <= n * 4); {9605#false} is VALID [2018-12-18 17:54:15,309 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:54:15,309 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:54:17,652 INFO L273 TraceCheckUtils]: 54: Hoare triple {9828#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {9605#false} is VALID [2018-12-18 17:54:17,653 INFO L273 TraceCheckUtils]: 53: Hoare triple {9832#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {9828#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:54:17,654 INFO L273 TraceCheckUtils]: 52: Hoare triple {9836#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {9832#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:54:17,654 INFO L273 TraceCheckUtils]: 51: Hoare triple {9840#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {9836#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:54:17,655 INFO L273 TraceCheckUtils]: 50: Hoare triple {9840#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {9840#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:54:17,655 INFO L273 TraceCheckUtils]: 49: Hoare triple {9847#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {9840#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:54:17,656 INFO L273 TraceCheckUtils]: 48: Hoare triple {9847#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {9847#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:54:17,656 INFO L273 TraceCheckUtils]: 47: Hoare triple {9854#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {9847#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:54:17,657 INFO L273 TraceCheckUtils]: 46: Hoare triple {9854#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {9854#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:54:17,658 INFO L273 TraceCheckUtils]: 45: Hoare triple {9861#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {9854#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:54:17,659 INFO L273 TraceCheckUtils]: 44: Hoare triple {9861#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {9861#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:54:17,660 INFO L273 TraceCheckUtils]: 43: Hoare triple {9868#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9861#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:54:17,660 INFO L273 TraceCheckUtils]: 42: Hoare triple {9868#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {9868#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:54:17,661 INFO L273 TraceCheckUtils]: 41: Hoare triple {9875#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {9868#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:54:17,662 INFO L273 TraceCheckUtils]: 40: Hoare triple {9875#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {9875#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:54:17,663 INFO L273 TraceCheckUtils]: 39: Hoare triple {9882#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9875#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:54:17,664 INFO L273 TraceCheckUtils]: 38: Hoare triple {9882#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {9882#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:54:17,665 INFO L273 TraceCheckUtils]: 37: Hoare triple {9889#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9882#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:54:17,665 INFO L273 TraceCheckUtils]: 36: Hoare triple {9889#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {9889#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:54:17,667 INFO L273 TraceCheckUtils]: 35: Hoare triple {9896#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9889#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:54:17,667 INFO L273 TraceCheckUtils]: 34: Hoare triple {9896#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {9896#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:54:17,668 INFO L273 TraceCheckUtils]: 33: Hoare triple {9903#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {9896#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:54:17,669 INFO L273 TraceCheckUtils]: 32: Hoare triple {9903#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {9903#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:54:17,670 INFO L273 TraceCheckUtils]: 31: Hoare triple {9910#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9903#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:54:17,670 INFO L273 TraceCheckUtils]: 30: Hoare triple {9910#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {9910#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:54:17,671 INFO L273 TraceCheckUtils]: 29: Hoare triple {9917#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9910#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:54:17,672 INFO L273 TraceCheckUtils]: 28: Hoare triple {9917#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {9917#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:54:17,673 INFO L273 TraceCheckUtils]: 27: Hoare triple {9924#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {9917#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:54:17,674 INFO L273 TraceCheckUtils]: 26: Hoare triple {9924#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {9924#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:54:17,675 INFO L273 TraceCheckUtils]: 25: Hoare triple {9931#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9924#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:54:17,675 INFO L273 TraceCheckUtils]: 24: Hoare triple {9931#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {9931#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:54:17,676 INFO L273 TraceCheckUtils]: 23: Hoare triple {9938#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {9931#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:54:17,677 INFO L273 TraceCheckUtils]: 22: Hoare triple {9938#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {9938#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:54:17,678 INFO L273 TraceCheckUtils]: 21: Hoare triple {9945#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {9938#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:54:17,678 INFO L273 TraceCheckUtils]: 20: Hoare triple {9945#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {9945#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:54:17,679 INFO L273 TraceCheckUtils]: 19: Hoare triple {9952#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {9945#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:54:17,680 INFO L273 TraceCheckUtils]: 18: Hoare triple {9952#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {9952#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:54:17,681 INFO L273 TraceCheckUtils]: 17: Hoare triple {9959#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {9952#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:54:17,682 INFO L273 TraceCheckUtils]: 16: Hoare triple {9959#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {9959#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:54:17,683 INFO L273 TraceCheckUtils]: 15: Hoare triple {9966#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {9959#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:54:17,683 INFO L273 TraceCheckUtils]: 14: Hoare triple {9966#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {9966#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:54:17,684 INFO L273 TraceCheckUtils]: 13: Hoare triple {9973#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {9966#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:54:17,685 INFO L273 TraceCheckUtils]: 12: Hoare triple {9973#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {9973#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:54:17,686 INFO L273 TraceCheckUtils]: 11: Hoare triple {9980#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9973#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:54:17,687 INFO L273 TraceCheckUtils]: 10: Hoare triple {9980#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {9980#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:54:17,688 INFO L273 TraceCheckUtils]: 9: Hoare triple {9987#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9980#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:54:17,688 INFO L273 TraceCheckUtils]: 8: Hoare triple {9987#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {9987#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:54:17,689 INFO L273 TraceCheckUtils]: 7: Hoare triple {9994#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {9987#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:54:17,690 INFO L273 TraceCheckUtils]: 6: Hoare triple {9994#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {9994#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:54:17,691 INFO L273 TraceCheckUtils]: 5: Hoare triple {10001#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {9994#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:54:17,691 INFO L273 TraceCheckUtils]: 4: Hoare triple {10001#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {10001#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:54:17,693 INFO L273 TraceCheckUtils]: 3: Hoare triple {10008#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10001#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:54:17,693 INFO L273 TraceCheckUtils]: 2: Hoare triple {10008#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {10008#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:54:17,694 INFO L273 TraceCheckUtils]: 1: Hoare triple {10015#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {10008#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:54:17,695 INFO L273 TraceCheckUtils]: 0: Hoare triple {9604#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {10015#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:54:17,708 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:54:17,726 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:54:17,726 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 86 [2018-12-18 17:54:17,726 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:54:17,727 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 55 [2018-12-18 17:54:17,727 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:54:17,727 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 59 states. [2018-12-18 17:54:17,858 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 109 edges. 109 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:54:17,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 59 states [2018-12-18 17:54:17,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2018-12-18 17:54:17,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=994, Invalid=6662, Unknown=0, NotChecked=0, Total=7656 [2018-12-18 17:54:17,860 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand 59 states. [2018-12-18 17:54:21,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:54:21,696 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2018-12-18 17:54:21,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-12-18 17:54:21,696 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 55 [2018-12-18 17:54:21,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:54:21,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-12-18 17:54:21,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 60 transitions. [2018-12-18 17:54:21,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-12-18 17:54:21,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 60 transitions. [2018-12-18 17:54:21,698 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 31 states and 60 transitions. [2018-12-18 17:54:21,760 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 60 edges. 60 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:54:21,762 INFO L225 Difference]: With dead ends: 60 [2018-12-18 17:54:21,762 INFO L226 Difference]: Without dead ends: 59 [2018-12-18 17:54:21,763 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1736 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=994, Invalid=6662, Unknown=0, NotChecked=0, Total=7656 [2018-12-18 17:54:21,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-12-18 17:54:21,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2018-12-18 17:54:21,827 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:54:21,827 INFO L82 GeneralOperation]: Start isEquivalent. First operand 59 states. Second operand 58 states. [2018-12-18 17:54:21,827 INFO L74 IsIncluded]: Start isIncluded. First operand 59 states. Second operand 58 states. [2018-12-18 17:54:21,828 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 58 states. [2018-12-18 17:54:21,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:54:21,829 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2018-12-18 17:54:21,829 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2018-12-18 17:54:21,829 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:54:21,829 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:54:21,829 INFO L74 IsIncluded]: Start isIncluded. First operand 58 states. Second operand 59 states. [2018-12-18 17:54:21,830 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 59 states. [2018-12-18 17:54:21,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:54:21,830 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2018-12-18 17:54:21,830 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2018-12-18 17:54:21,831 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:54:21,831 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:54:21,831 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:54:21,831 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:54:21,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-12-18 17:54:21,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2018-12-18 17:54:21,832 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 55 [2018-12-18 17:54:21,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:54:21,832 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2018-12-18 17:54:21,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has 59 states. [2018-12-18 17:54:21,833 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2018-12-18 17:54:21,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-18 17:54:21,833 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:54:21,833 INFO L402 BasicCegarLoop]: trace histogram [28, 27, 1, 1] [2018-12-18 17:54:21,833 INFO L423 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:54:21,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:54:21,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1554937942, now seen corresponding path program 27 times [2018-12-18 17:54:21,834 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:54:21,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:54:21,834 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:54:21,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:54:21,835 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:54:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:54:23,198 INFO L273 TraceCheckUtils]: 0: Hoare triple {10311#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {10313#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 0) (<= main_n 27)))} is VALID [2018-12-18 17:54:23,199 INFO L273 TraceCheckUtils]: 1: Hoare triple {10313#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 0) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10314#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 27 main_n)) (or (<= main_n 27) (<= main_i 4)))} is VALID [2018-12-18 17:54:23,200 INFO L273 TraceCheckUtils]: 2: Hoare triple {10314#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 27 main_n)) (or (<= main_n 27) (<= main_i 4)))} assume i <= n * 4; {10314#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 27 main_n)) (or (<= main_n 27) (<= main_i 4)))} is VALID [2018-12-18 17:54:23,201 INFO L273 TraceCheckUtils]: 3: Hoare triple {10314#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 27 main_n)) (or (<= main_n 27) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {10315#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 8) (<= main_n 27)))} is VALID [2018-12-18 17:54:23,202 INFO L273 TraceCheckUtils]: 4: Hoare triple {10315#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 8) (<= main_n 27)))} assume i <= n * 4; {10315#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 8) (<= main_n 27)))} is VALID [2018-12-18 17:54:23,203 INFO L273 TraceCheckUtils]: 5: Hoare triple {10315#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 8) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10316#(and (or (<= main_n 27) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,204 INFO L273 TraceCheckUtils]: 6: Hoare triple {10316#(and (or (<= main_n 27) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10316#(and (or (<= main_n 27) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,205 INFO L273 TraceCheckUtils]: 7: Hoare triple {10316#(and (or (<= main_n 27) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10317#(and (or (<= main_n 27) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,206 INFO L273 TraceCheckUtils]: 8: Hoare triple {10317#(and (or (<= main_n 27) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10317#(and (or (<= main_n 27) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,207 INFO L273 TraceCheckUtils]: 9: Hoare triple {10317#(and (or (<= main_n 27) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10318#(and (or (< 27 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 27)))} is VALID [2018-12-18 17:54:23,208 INFO L273 TraceCheckUtils]: 10: Hoare triple {10318#(and (or (< 27 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 27)))} assume i <= n * 4; {10318#(and (or (< 27 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 27)))} is VALID [2018-12-18 17:54:23,209 INFO L273 TraceCheckUtils]: 11: Hoare triple {10318#(and (or (< 27 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10319#(and (or (<= main_i 24) (<= main_n 27)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,209 INFO L273 TraceCheckUtils]: 12: Hoare triple {10319#(and (or (<= main_i 24) (<= main_n 27)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10319#(and (or (<= main_i 24) (<= main_n 27)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,211 INFO L273 TraceCheckUtils]: 13: Hoare triple {10319#(and (or (<= main_i 24) (<= main_n 27)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10320#(and (or (<= main_n 27) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,211 INFO L273 TraceCheckUtils]: 14: Hoare triple {10320#(and (or (<= main_n 27) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10320#(and (or (<= main_n 27) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,212 INFO L273 TraceCheckUtils]: 15: Hoare triple {10320#(and (or (<= main_n 27) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10321#(and (or (<= main_i 32) (<= main_n 27)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,213 INFO L273 TraceCheckUtils]: 16: Hoare triple {10321#(and (or (<= main_i 32) (<= main_n 27)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10321#(and (or (<= main_i 32) (<= main_n 27)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,214 INFO L273 TraceCheckUtils]: 17: Hoare triple {10321#(and (or (<= main_i 32) (<= main_n 27)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10322#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 27 main_n)) (or (<= main_i 36) (<= main_n 27)))} is VALID [2018-12-18 17:54:23,215 INFO L273 TraceCheckUtils]: 18: Hoare triple {10322#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 27 main_n)) (or (<= main_i 36) (<= main_n 27)))} assume i <= n * 4; {10322#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 27 main_n)) (or (<= main_i 36) (<= main_n 27)))} is VALID [2018-12-18 17:54:23,216 INFO L273 TraceCheckUtils]: 19: Hoare triple {10322#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 27 main_n)) (or (<= main_i 36) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10323#(and (or (<= main_i 40) (<= main_n 27)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,217 INFO L273 TraceCheckUtils]: 20: Hoare triple {10323#(and (or (<= main_i 40) (<= main_n 27)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10323#(and (or (<= main_i 40) (<= main_n 27)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,218 INFO L273 TraceCheckUtils]: 21: Hoare triple {10323#(and (or (<= main_i 40) (<= main_n 27)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10324#(and (or (< 27 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 27) (<= main_i 44)))} is VALID [2018-12-18 17:54:23,219 INFO L273 TraceCheckUtils]: 22: Hoare triple {10324#(and (or (< 27 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 27) (<= main_i 44)))} assume i <= n * 4; {10324#(and (or (< 27 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 27) (<= main_i 44)))} is VALID [2018-12-18 17:54:23,220 INFO L273 TraceCheckUtils]: 23: Hoare triple {10324#(and (or (< 27 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 27) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {10325#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 48)))} is VALID [2018-12-18 17:54:23,220 INFO L273 TraceCheckUtils]: 24: Hoare triple {10325#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 48)))} assume i <= n * 4; {10325#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 48)))} is VALID [2018-12-18 17:54:23,221 INFO L273 TraceCheckUtils]: 25: Hoare triple {10325#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {10326#(and (or (<= main_i 52) (<= main_n 27)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,222 INFO L273 TraceCheckUtils]: 26: Hoare triple {10326#(and (or (<= main_i 52) (<= main_n 27)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10326#(and (or (<= main_i 52) (<= main_n 27)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,223 INFO L273 TraceCheckUtils]: 27: Hoare triple {10326#(and (or (<= main_i 52) (<= main_n 27)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10327#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 56) (<= main_n 27)))} is VALID [2018-12-18 17:54:23,224 INFO L273 TraceCheckUtils]: 28: Hoare triple {10327#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 56) (<= main_n 27)))} assume i <= n * 4; {10327#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 56) (<= main_n 27)))} is VALID [2018-12-18 17:54:23,225 INFO L273 TraceCheckUtils]: 29: Hoare triple {10327#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 56) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10328#(and (or (<= main_i 60) (<= main_n 27)) (or (< 27 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:54:23,226 INFO L273 TraceCheckUtils]: 30: Hoare triple {10328#(and (or (<= main_i 60) (<= main_n 27)) (or (< 27 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {10328#(and (or (<= main_i 60) (<= main_n 27)) (or (< 27 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:54:23,227 INFO L273 TraceCheckUtils]: 31: Hoare triple {10328#(and (or (<= main_i 60) (<= main_n 27)) (or (< 27 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {10329#(and (or (<= main_i 64) (<= main_n 27)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,228 INFO L273 TraceCheckUtils]: 32: Hoare triple {10329#(and (or (<= main_i 64) (<= main_n 27)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10329#(and (or (<= main_i 64) (<= main_n 27)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,229 INFO L273 TraceCheckUtils]: 33: Hoare triple {10329#(and (or (<= main_i 64) (<= main_n 27)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10330#(and (or (<= main_n 27) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,229 INFO L273 TraceCheckUtils]: 34: Hoare triple {10330#(and (or (<= main_n 27) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10330#(and (or (<= main_n 27) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,230 INFO L273 TraceCheckUtils]: 35: Hoare triple {10330#(and (or (<= main_n 27) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10331#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 72)))} is VALID [2018-12-18 17:54:23,231 INFO L273 TraceCheckUtils]: 36: Hoare triple {10331#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 72)))} assume i <= n * 4; {10331#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 72)))} is VALID [2018-12-18 17:54:23,232 INFO L273 TraceCheckUtils]: 37: Hoare triple {10331#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_n 27) (<= main_i 72)))} assume a[i] != 23;i := i + 4; {10332#(and (or (<= main_i 76) (<= main_n 27)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,233 INFO L273 TraceCheckUtils]: 38: Hoare triple {10332#(and (or (<= main_i 76) (<= main_n 27)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10332#(and (or (<= main_i 76) (<= main_n 27)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,234 INFO L273 TraceCheckUtils]: 39: Hoare triple {10332#(and (or (<= main_i 76) (<= main_n 27)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10333#(and (or (<= main_n 27) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,235 INFO L273 TraceCheckUtils]: 40: Hoare triple {10333#(and (or (<= main_n 27) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10333#(and (or (<= main_n 27) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,236 INFO L273 TraceCheckUtils]: 41: Hoare triple {10333#(and (or (<= main_n 27) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10334#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 27 main_n)) (or (<= main_i 84) (<= main_n 27)))} is VALID [2018-12-18 17:54:23,237 INFO L273 TraceCheckUtils]: 42: Hoare triple {10334#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 27 main_n)) (or (<= main_i 84) (<= main_n 27)))} assume i <= n * 4; {10334#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 27 main_n)) (or (<= main_i 84) (<= main_n 27)))} is VALID [2018-12-18 17:54:23,238 INFO L273 TraceCheckUtils]: 43: Hoare triple {10334#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 27 main_n)) (or (<= main_i 84) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10335#(and (or (<= main_i 88) (<= main_n 27)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,238 INFO L273 TraceCheckUtils]: 44: Hoare triple {10335#(and (or (<= main_i 88) (<= main_n 27)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10335#(and (or (<= main_i 88) (<= main_n 27)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,239 INFO L273 TraceCheckUtils]: 45: Hoare triple {10335#(and (or (<= main_i 88) (<= main_n 27)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10336#(and (or (< 27 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 27)))} is VALID [2018-12-18 17:54:23,240 INFO L273 TraceCheckUtils]: 46: Hoare triple {10336#(and (or (< 27 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 27)))} assume i <= n * 4; {10336#(and (or (< 27 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 27)))} is VALID [2018-12-18 17:54:23,241 INFO L273 TraceCheckUtils]: 47: Hoare triple {10336#(and (or (< 27 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10337#(and (or (<= main_i 96) (<= main_n 27)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,242 INFO L273 TraceCheckUtils]: 48: Hoare triple {10337#(and (or (<= main_i 96) (<= main_n 27)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume i <= n * 4; {10337#(and (or (<= main_i 96) (<= main_n 27)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,243 INFO L273 TraceCheckUtils]: 49: Hoare triple {10337#(and (or (<= main_i 96) (<= main_n 27)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)))} assume a[i] != 23;i := i + 4; {10338#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 100) (<= main_n 27)))} is VALID [2018-12-18 17:54:23,244 INFO L273 TraceCheckUtils]: 50: Hoare triple {10338#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 100) (<= main_n 27)))} assume i <= n * 4; {10338#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 100) (<= main_n 27)))} is VALID [2018-12-18 17:54:23,245 INFO L273 TraceCheckUtils]: 51: Hoare triple {10338#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 100) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10339#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 104) (<= main_n 27)))} is VALID [2018-12-18 17:54:23,246 INFO L273 TraceCheckUtils]: 52: Hoare triple {10339#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 104) (<= main_n 27)))} assume i <= n * 4; {10339#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 104) (<= main_n 27)))} is VALID [2018-12-18 17:54:23,247 INFO L273 TraceCheckUtils]: 53: Hoare triple {10339#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 27 main_n)) (or (<= main_i 104) (<= main_n 27)))} assume a[i] != 23;i := i + 4; {10340#(and (or (<= main_n 27) (<= main_i 108)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 27 main_n)))} is VALID [2018-12-18 17:54:23,248 INFO L273 TraceCheckUtils]: 54: Hoare triple {10340#(and (or (<= main_n 27) (<= main_i 108)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 27 main_n)))} assume i <= n * 4; {10341#(and (or (< 27 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 108))} is VALID [2018-12-18 17:54:23,249 INFO L273 TraceCheckUtils]: 55: Hoare triple {10341#(and (or (< 27 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 108))} assume a[i] != 23;i := i + 4; {10342#(and (< 27 main_n) (<= main_i 112))} is VALID [2018-12-18 17:54:23,249 INFO L273 TraceCheckUtils]: 56: Hoare triple {10342#(and (< 27 main_n) (<= main_i 112))} assume !(i <= n * 4); {10312#false} is VALID [2018-12-18 17:54:23,266 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:54:23,266 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:54:23,266 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:54:23,266 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:54:23,266 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:54:23,266 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:54:23,267 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:54:23,275 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-18 17:54:23,276 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-18 17:54:23,290 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-18 17:54:23,291 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:54:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:54:23,306 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:54:23,312 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:54:23,313 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:54:23,317 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:54:23,317 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:54:23,319 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:54:23,319 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_31]. (and (= (store v_main_a_31 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:54:23,320 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:54:24,774 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:54:24,776 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:54:24,782 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:54:24,783 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:54:24,785 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:54:24,785 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 108))) (<= 108 .cse0) (= 23 (select main_a .cse0)) (<= main_i 112))) [2018-12-18 17:54:24,786 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 108 .cse0)) (<= 108 .cse0) (<= main_i 112))) [2018-12-18 17:54:24,824 INFO L273 TraceCheckUtils]: 0: Hoare triple {10311#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {10346#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,825 INFO L273 TraceCheckUtils]: 1: Hoare triple {10346#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10350#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:54:24,825 INFO L273 TraceCheckUtils]: 2: Hoare triple {10350#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {10350#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:54:24,826 INFO L273 TraceCheckUtils]: 3: Hoare triple {10350#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {10357#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,827 INFO L273 TraceCheckUtils]: 4: Hoare triple {10357#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10357#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,827 INFO L273 TraceCheckUtils]: 5: Hoare triple {10357#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10364#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:54:24,828 INFO L273 TraceCheckUtils]: 6: Hoare triple {10364#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {10364#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:54:24,829 INFO L273 TraceCheckUtils]: 7: Hoare triple {10364#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {10371#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,829 INFO L273 TraceCheckUtils]: 8: Hoare triple {10371#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10371#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,830 INFO L273 TraceCheckUtils]: 9: Hoare triple {10371#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10378#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,831 INFO L273 TraceCheckUtils]: 10: Hoare triple {10378#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10378#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,831 INFO L273 TraceCheckUtils]: 11: Hoare triple {10378#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10385#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,832 INFO L273 TraceCheckUtils]: 12: Hoare triple {10385#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10385#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,833 INFO L273 TraceCheckUtils]: 13: Hoare triple {10385#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10392#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,834 INFO L273 TraceCheckUtils]: 14: Hoare triple {10392#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10392#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,834 INFO L273 TraceCheckUtils]: 15: Hoare triple {10392#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10399#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,835 INFO L273 TraceCheckUtils]: 16: Hoare triple {10399#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10399#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,836 INFO L273 TraceCheckUtils]: 17: Hoare triple {10399#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10406#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,836 INFO L273 TraceCheckUtils]: 18: Hoare triple {10406#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10406#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,837 INFO L273 TraceCheckUtils]: 19: Hoare triple {10406#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10413#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,848 INFO L273 TraceCheckUtils]: 20: Hoare triple {10413#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10413#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,848 INFO L273 TraceCheckUtils]: 21: Hoare triple {10413#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10420#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,849 INFO L273 TraceCheckUtils]: 22: Hoare triple {10420#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10420#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,849 INFO L273 TraceCheckUtils]: 23: Hoare triple {10420#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10427#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,850 INFO L273 TraceCheckUtils]: 24: Hoare triple {10427#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10427#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,850 INFO L273 TraceCheckUtils]: 25: Hoare triple {10427#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10434#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,850 INFO L273 TraceCheckUtils]: 26: Hoare triple {10434#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10434#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,851 INFO L273 TraceCheckUtils]: 27: Hoare triple {10434#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10441#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,851 INFO L273 TraceCheckUtils]: 28: Hoare triple {10441#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10441#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,852 INFO L273 TraceCheckUtils]: 29: Hoare triple {10441#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10448#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,852 INFO L273 TraceCheckUtils]: 30: Hoare triple {10448#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10448#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,853 INFO L273 TraceCheckUtils]: 31: Hoare triple {10448#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10455#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,853 INFO L273 TraceCheckUtils]: 32: Hoare triple {10455#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10455#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,854 INFO L273 TraceCheckUtils]: 33: Hoare triple {10455#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10462#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,855 INFO L273 TraceCheckUtils]: 34: Hoare triple {10462#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10462#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,856 INFO L273 TraceCheckUtils]: 35: Hoare triple {10462#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10469#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,856 INFO L273 TraceCheckUtils]: 36: Hoare triple {10469#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10469#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,857 INFO L273 TraceCheckUtils]: 37: Hoare triple {10469#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10476#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,858 INFO L273 TraceCheckUtils]: 38: Hoare triple {10476#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10476#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,858 INFO L273 TraceCheckUtils]: 39: Hoare triple {10476#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10483#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:54:24,859 INFO L273 TraceCheckUtils]: 40: Hoare triple {10483#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {10483#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:54:24,860 INFO L273 TraceCheckUtils]: 41: Hoare triple {10483#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {10490#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,860 INFO L273 TraceCheckUtils]: 42: Hoare triple {10490#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10490#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,861 INFO L273 TraceCheckUtils]: 43: Hoare triple {10490#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10497#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,862 INFO L273 TraceCheckUtils]: 44: Hoare triple {10497#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10497#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,863 INFO L273 TraceCheckUtils]: 45: Hoare triple {10497#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10504#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,863 INFO L273 TraceCheckUtils]: 46: Hoare triple {10504#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10504#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,864 INFO L273 TraceCheckUtils]: 47: Hoare triple {10504#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10511#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,865 INFO L273 TraceCheckUtils]: 48: Hoare triple {10511#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10511#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,865 INFO L273 TraceCheckUtils]: 49: Hoare triple {10511#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10518#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,866 INFO L273 TraceCheckUtils]: 50: Hoare triple {10518#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10518#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,867 INFO L273 TraceCheckUtils]: 51: Hoare triple {10518#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10525#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,867 INFO L273 TraceCheckUtils]: 52: Hoare triple {10525#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10525#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,868 INFO L273 TraceCheckUtils]: 53: Hoare triple {10525#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10532#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,869 INFO L273 TraceCheckUtils]: 54: Hoare triple {10532#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {10536#(and (= main_i 108) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:24,870 INFO L273 TraceCheckUtils]: 55: Hoare triple {10536#(and (= main_i 108) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {10342#(and (< 27 main_n) (<= main_i 112))} is VALID [2018-12-18 17:54:24,871 INFO L273 TraceCheckUtils]: 56: Hoare triple {10342#(and (< 27 main_n) (<= main_i 112))} assume !(i <= n * 4); {10312#false} is VALID [2018-12-18 17:54:24,879 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:54:24,879 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:54:27,373 INFO L273 TraceCheckUtils]: 56: Hoare triple {10543#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {10312#false} is VALID [2018-12-18 17:54:27,374 INFO L273 TraceCheckUtils]: 55: Hoare triple {10547#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {10543#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:54:27,374 INFO L273 TraceCheckUtils]: 54: Hoare triple {10551#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {10547#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:54:27,375 INFO L273 TraceCheckUtils]: 53: Hoare triple {10555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {10551#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:54:27,376 INFO L273 TraceCheckUtils]: 52: Hoare triple {10555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {10555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:54:27,377 INFO L273 TraceCheckUtils]: 51: Hoare triple {10562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {10555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:54:27,378 INFO L273 TraceCheckUtils]: 50: Hoare triple {10562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {10562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:54:27,379 INFO L273 TraceCheckUtils]: 49: Hoare triple {10569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {10562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:54:27,379 INFO L273 TraceCheckUtils]: 48: Hoare triple {10569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {10569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:54:27,380 INFO L273 TraceCheckUtils]: 47: Hoare triple {10576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {10569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:54:27,381 INFO L273 TraceCheckUtils]: 46: Hoare triple {10576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {10576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:54:27,382 INFO L273 TraceCheckUtils]: 45: Hoare triple {10583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:54:27,389 INFO L273 TraceCheckUtils]: 44: Hoare triple {10583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {10583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:54:27,390 INFO L273 TraceCheckUtils]: 43: Hoare triple {10590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {10583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:54:27,391 INFO L273 TraceCheckUtils]: 42: Hoare triple {10590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {10590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:54:27,391 INFO L273 TraceCheckUtils]: 41: Hoare triple {10597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:54:27,392 INFO L273 TraceCheckUtils]: 40: Hoare triple {10597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {10597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:54:27,392 INFO L273 TraceCheckUtils]: 39: Hoare triple {10604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:54:27,393 INFO L273 TraceCheckUtils]: 38: Hoare triple {10604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {10604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:54:27,393 INFO L273 TraceCheckUtils]: 37: Hoare triple {10611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:54:27,394 INFO L273 TraceCheckUtils]: 36: Hoare triple {10611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {10611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:54:27,395 INFO L273 TraceCheckUtils]: 35: Hoare triple {10618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {10611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:54:27,396 INFO L273 TraceCheckUtils]: 34: Hoare triple {10618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {10618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:54:27,397 INFO L273 TraceCheckUtils]: 33: Hoare triple {10625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:54:27,397 INFO L273 TraceCheckUtils]: 32: Hoare triple {10625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {10625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:54:27,398 INFO L273 TraceCheckUtils]: 31: Hoare triple {10632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:54:27,399 INFO L273 TraceCheckUtils]: 30: Hoare triple {10632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {10632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:54:27,400 INFO L273 TraceCheckUtils]: 29: Hoare triple {10639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {10632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:54:27,400 INFO L273 TraceCheckUtils]: 28: Hoare triple {10639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {10639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:54:27,401 INFO L273 TraceCheckUtils]: 27: Hoare triple {10646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:54:27,402 INFO L273 TraceCheckUtils]: 26: Hoare triple {10646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {10646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:54:27,403 INFO L273 TraceCheckUtils]: 25: Hoare triple {10653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {10646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:54:27,404 INFO L273 TraceCheckUtils]: 24: Hoare triple {10653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {10653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:54:27,405 INFO L273 TraceCheckUtils]: 23: Hoare triple {10660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {10653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:54:27,405 INFO L273 TraceCheckUtils]: 22: Hoare triple {10660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {10660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:54:27,406 INFO L273 TraceCheckUtils]: 21: Hoare triple {10667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {10660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:54:27,407 INFO L273 TraceCheckUtils]: 20: Hoare triple {10667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {10667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:54:27,408 INFO L273 TraceCheckUtils]: 19: Hoare triple {10674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {10667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:54:27,408 INFO L273 TraceCheckUtils]: 18: Hoare triple {10674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {10674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:54:27,409 INFO L273 TraceCheckUtils]: 17: Hoare triple {10681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {10674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:54:27,410 INFO L273 TraceCheckUtils]: 16: Hoare triple {10681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {10681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:54:27,411 INFO L273 TraceCheckUtils]: 15: Hoare triple {10688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {10681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:54:27,412 INFO L273 TraceCheckUtils]: 14: Hoare triple {10688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {10688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:54:27,413 INFO L273 TraceCheckUtils]: 13: Hoare triple {10695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:54:27,413 INFO L273 TraceCheckUtils]: 12: Hoare triple {10695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {10695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:54:27,414 INFO L273 TraceCheckUtils]: 11: Hoare triple {10702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:54:27,415 INFO L273 TraceCheckUtils]: 10: Hoare triple {10702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {10702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:54:27,416 INFO L273 TraceCheckUtils]: 9: Hoare triple {10709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:54:27,416 INFO L273 TraceCheckUtils]: 8: Hoare triple {10709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {10709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:54:27,417 INFO L273 TraceCheckUtils]: 7: Hoare triple {10716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {10709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:54:27,418 INFO L273 TraceCheckUtils]: 6: Hoare triple {10716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {10716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:54:27,419 INFO L273 TraceCheckUtils]: 5: Hoare triple {10723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {10716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:54:27,419 INFO L273 TraceCheckUtils]: 4: Hoare triple {10723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {10723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:54:27,421 INFO L273 TraceCheckUtils]: 3: Hoare triple {10730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {10723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:54:27,421 INFO L273 TraceCheckUtils]: 2: Hoare triple {10730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {10730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:54:27,422 INFO L273 TraceCheckUtils]: 1: Hoare triple {10737#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {10730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:54:27,423 INFO L273 TraceCheckUtils]: 0: Hoare triple {10311#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {10737#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:54:27,436 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:54:27,454 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:54:27,454 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 30] total 89 [2018-12-18 17:54:27,454 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:54:27,454 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 57 [2018-12-18 17:54:27,454 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:54:27,455 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 61 states. [2018-12-18 17:54:27,585 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 113 edges. 113 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:54:27,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 61 states [2018-12-18 17:54:27,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2018-12-18 17:54:27,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1058, Invalid=7132, Unknown=0, NotChecked=0, Total=8190 [2018-12-18 17:54:27,586 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 61 states. [2018-12-18 17:54:33,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:54:33,503 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2018-12-18 17:54:33,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-12-18 17:54:33,504 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 57 [2018-12-18 17:54:33,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:54:33,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-12-18 17:54:33,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 62 transitions. [2018-12-18 17:54:33,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-12-18 17:54:33,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 62 transitions. [2018-12-18 17:54:33,506 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 32 states and 62 transitions. [2018-12-18 17:54:33,573 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 62 edges. 62 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:54:33,575 INFO L225 Difference]: With dead ends: 62 [2018-12-18 17:54:33,575 INFO L226 Difference]: Without dead ends: 61 [2018-12-18 17:54:33,575 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1856 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=1058, Invalid=7132, Unknown=0, NotChecked=0, Total=8190 [2018-12-18 17:54:33,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-12-18 17:54:33,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2018-12-18 17:54:33,639 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:54:33,639 INFO L82 GeneralOperation]: Start isEquivalent. First operand 61 states. Second operand 60 states. [2018-12-18 17:54:33,640 INFO L74 IsIncluded]: Start isIncluded. First operand 61 states. Second operand 60 states. [2018-12-18 17:54:33,640 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 60 states. [2018-12-18 17:54:33,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:54:33,641 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2018-12-18 17:54:33,641 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2018-12-18 17:54:33,642 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:54:33,642 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:54:33,642 INFO L74 IsIncluded]: Start isIncluded. First operand 60 states. Second operand 61 states. [2018-12-18 17:54:33,642 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 61 states. [2018-12-18 17:54:33,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:54:33,644 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2018-12-18 17:54:33,644 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2018-12-18 17:54:33,644 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:54:33,644 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:54:33,644 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:54:33,645 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:54:33,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-12-18 17:54:33,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2018-12-18 17:54:33,646 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 57 [2018-12-18 17:54:33,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:54:33,646 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2018-12-18 17:54:33,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has 61 states. [2018-12-18 17:54:33,646 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2018-12-18 17:54:33,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-12-18 17:54:33,647 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:54:33,647 INFO L402 BasicCegarLoop]: trace histogram [29, 28, 1, 1] [2018-12-18 17:54:33,647 INFO L423 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:54:33,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:54:33,647 INFO L82 PathProgramCache]: Analyzing trace with hash -353255656, now seen corresponding path program 28 times [2018-12-18 17:54:33,647 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:54:33,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:54:33,648 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:54:33,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:54:33,648 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:54:33,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:54:33,994 WARN L181 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-12-18 17:54:35,259 INFO L273 TraceCheckUtils]: 0: Hoare triple {11043#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {11045#(and (or (<= main_n 28) (<= main_i 0)) (or (<= 0 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,260 INFO L273 TraceCheckUtils]: 1: Hoare triple {11045#(and (or (<= main_n 28) (<= main_i 0)) (or (<= 0 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11046#(and (or (<= main_n 28) (<= main_i 4)) (or (< 28 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,260 INFO L273 TraceCheckUtils]: 2: Hoare triple {11046#(and (or (<= main_n 28) (<= main_i 4)) (or (< 28 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11046#(and (or (<= main_n 28) (<= main_i 4)) (or (< 28 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,261 INFO L273 TraceCheckUtils]: 3: Hoare triple {11046#(and (or (<= main_n 28) (<= main_i 4)) (or (< 28 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11047#(and (or (< 28 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,261 INFO L273 TraceCheckUtils]: 4: Hoare triple {11047#(and (or (< 28 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11047#(and (or (< 28 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,262 INFO L273 TraceCheckUtils]: 5: Hoare triple {11047#(and (or (< 28 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11048#(and (or (< 28 main_n) (<= 12 main_i)) (or (<= main_n 28) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,263 INFO L273 TraceCheckUtils]: 6: Hoare triple {11048#(and (or (< 28 main_n) (<= 12 main_i)) (or (<= main_n 28) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11048#(and (or (< 28 main_n) (<= 12 main_i)) (or (<= main_n 28) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,264 INFO L273 TraceCheckUtils]: 7: Hoare triple {11048#(and (or (< 28 main_n) (<= 12 main_i)) (or (<= main_n 28) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11049#(and (or (< 28 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 28) (<= main_i 16)))} is VALID [2018-12-18 17:54:35,265 INFO L273 TraceCheckUtils]: 8: Hoare triple {11049#(and (or (< 28 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 28) (<= main_i 16)))} assume i <= n * 4; {11049#(and (or (< 28 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 28) (<= main_i 16)))} is VALID [2018-12-18 17:54:35,266 INFO L273 TraceCheckUtils]: 9: Hoare triple {11049#(and (or (< 28 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 28) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {11050#(and (or (<= main_n 28) (<= main_i 20)) (or (< 28 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,267 INFO L273 TraceCheckUtils]: 10: Hoare triple {11050#(and (or (<= main_n 28) (<= main_i 20)) (or (< 28 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11050#(and (or (<= main_n 28) (<= main_i 20)) (or (< 28 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,268 INFO L273 TraceCheckUtils]: 11: Hoare triple {11050#(and (or (<= main_n 28) (<= main_i 20)) (or (< 28 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11051#(and (or (< 28 main_n) (<= 24 main_i)) (or (<= main_n 28) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,269 INFO L273 TraceCheckUtils]: 12: Hoare triple {11051#(and (or (< 28 main_n) (<= 24 main_i)) (or (<= main_n 28) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11051#(and (or (< 28 main_n) (<= 24 main_i)) (or (<= main_n 28) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,270 INFO L273 TraceCheckUtils]: 13: Hoare triple {11051#(and (or (< 28 main_n) (<= 24 main_i)) (or (<= main_n 28) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11052#(and (or (<= 28 main_i) (< 28 main_n)) (or (<= main_n 28) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,271 INFO L273 TraceCheckUtils]: 14: Hoare triple {11052#(and (or (<= 28 main_i) (< 28 main_n)) (or (<= main_n 28) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11052#(and (or (<= 28 main_i) (< 28 main_n)) (or (<= main_n 28) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,272 INFO L273 TraceCheckUtils]: 15: Hoare triple {11052#(and (or (<= 28 main_i) (< 28 main_n)) (or (<= main_n 28) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11053#(and (or (<= main_i 32) (<= main_n 28)) (or (<= 32 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,273 INFO L273 TraceCheckUtils]: 16: Hoare triple {11053#(and (or (<= main_i 32) (<= main_n 28)) (or (<= 32 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11053#(and (or (<= main_i 32) (<= main_n 28)) (or (<= 32 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,274 INFO L273 TraceCheckUtils]: 17: Hoare triple {11053#(and (or (<= main_i 32) (<= main_n 28)) (or (<= 32 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11054#(and (or (<= main_i 36) (<= main_n 28)) (or (< 28 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,275 INFO L273 TraceCheckUtils]: 18: Hoare triple {11054#(and (or (<= main_i 36) (<= main_n 28)) (or (< 28 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11054#(and (or (<= main_i 36) (<= main_n 28)) (or (< 28 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,276 INFO L273 TraceCheckUtils]: 19: Hoare triple {11054#(and (or (<= main_i 36) (<= main_n 28)) (or (< 28 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11055#(and (or (<= 40 main_i) (< 28 main_n)) (or (<= main_i 40) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,277 INFO L273 TraceCheckUtils]: 20: Hoare triple {11055#(and (or (<= 40 main_i) (< 28 main_n)) (or (<= main_i 40) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11055#(and (or (<= 40 main_i) (< 28 main_n)) (or (<= main_i 40) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,278 INFO L273 TraceCheckUtils]: 21: Hoare triple {11055#(and (or (<= 40 main_i) (< 28 main_n)) (or (<= main_i 40) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11056#(and (or (<= main_n 28) (<= main_i 44)) (or (<= 44 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,279 INFO L273 TraceCheckUtils]: 22: Hoare triple {11056#(and (or (<= main_n 28) (<= main_i 44)) (or (<= 44 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11056#(and (or (<= main_n 28) (<= main_i 44)) (or (<= 44 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,280 INFO L273 TraceCheckUtils]: 23: Hoare triple {11056#(and (or (<= main_n 28) (<= main_i 44)) (or (<= 44 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11057#(and (or (<= main_n 28) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 28 main_n)))} is VALID [2018-12-18 17:54:35,281 INFO L273 TraceCheckUtils]: 24: Hoare triple {11057#(and (or (<= main_n 28) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 28 main_n)))} assume i <= n * 4; {11057#(and (or (<= main_n 28) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 28 main_n)))} is VALID [2018-12-18 17:54:35,282 INFO L273 TraceCheckUtils]: 25: Hoare triple {11057#(and (or (<= main_n 28) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 28 main_n)))} assume a[i] != 23;i := i + 4; {11058#(and (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 28)))} is VALID [2018-12-18 17:54:35,283 INFO L273 TraceCheckUtils]: 26: Hoare triple {11058#(and (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 28)))} assume i <= n * 4; {11058#(and (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 28)))} is VALID [2018-12-18 17:54:35,284 INFO L273 TraceCheckUtils]: 27: Hoare triple {11058#(and (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 28)))} assume a[i] != 23;i := i + 4; {11059#(and (or (<= main_n 28) (<= main_i 56)) (or (< 28 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,285 INFO L273 TraceCheckUtils]: 28: Hoare triple {11059#(and (or (<= main_n 28) (<= main_i 56)) (or (< 28 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11059#(and (or (<= main_n 28) (<= main_i 56)) (or (< 28 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,286 INFO L273 TraceCheckUtils]: 29: Hoare triple {11059#(and (or (<= main_n 28) (<= main_i 56)) (or (< 28 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11060#(and (or (<= main_n 28) (<= main_i 60)) (or (< 28 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,287 INFO L273 TraceCheckUtils]: 30: Hoare triple {11060#(and (or (<= main_n 28) (<= main_i 60)) (or (< 28 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11060#(and (or (<= main_n 28) (<= main_i 60)) (or (< 28 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,288 INFO L273 TraceCheckUtils]: 31: Hoare triple {11060#(and (or (<= main_n 28) (<= main_i 60)) (or (< 28 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11061#(and (or (<= 64 main_i) (< 28 main_n)) (or (<= main_i 64) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,289 INFO L273 TraceCheckUtils]: 32: Hoare triple {11061#(and (or (<= 64 main_i) (< 28 main_n)) (or (<= main_i 64) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11061#(and (or (<= 64 main_i) (< 28 main_n)) (or (<= main_i 64) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,290 INFO L273 TraceCheckUtils]: 33: Hoare triple {11061#(and (or (<= 64 main_i) (< 28 main_n)) (or (<= main_i 64) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11062#(and (or (<= main_n 28) (<= main_i 68)) (or (< 28 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,290 INFO L273 TraceCheckUtils]: 34: Hoare triple {11062#(and (or (<= main_n 28) (<= main_i 68)) (or (< 28 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11062#(and (or (<= main_n 28) (<= main_i 68)) (or (< 28 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,292 INFO L273 TraceCheckUtils]: 35: Hoare triple {11062#(and (or (<= main_n 28) (<= main_i 68)) (or (< 28 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11063#(and (or (<= main_n 28) (<= main_i 72)) (or (<= 72 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,292 INFO L273 TraceCheckUtils]: 36: Hoare triple {11063#(and (or (<= main_n 28) (<= main_i 72)) (or (<= 72 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11063#(and (or (<= main_n 28) (<= main_i 72)) (or (<= 72 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,294 INFO L273 TraceCheckUtils]: 37: Hoare triple {11063#(and (or (<= main_n 28) (<= main_i 72)) (or (<= 72 main_i) (< 28 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11064#(and (or (<= main_i 76) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 28 main_n)))} is VALID [2018-12-18 17:54:35,294 INFO L273 TraceCheckUtils]: 38: Hoare triple {11064#(and (or (<= main_i 76) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 28 main_n)))} assume i <= n * 4; {11064#(and (or (<= main_i 76) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 28 main_n)))} is VALID [2018-12-18 17:54:35,295 INFO L273 TraceCheckUtils]: 39: Hoare triple {11064#(and (or (<= main_i 76) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 28 main_n)))} assume a[i] != 23;i := i + 4; {11065#(and (or (<= main_n 28) (<= main_i 80)) (or (< 28 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,296 INFO L273 TraceCheckUtils]: 40: Hoare triple {11065#(and (or (<= main_n 28) (<= main_i 80)) (or (< 28 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11065#(and (or (<= main_n 28) (<= main_i 80)) (or (< 28 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,297 INFO L273 TraceCheckUtils]: 41: Hoare triple {11065#(and (or (<= main_n 28) (<= main_i 80)) (or (< 28 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11066#(and (or (<= main_i 84) (<= main_n 28)) (or (< 28 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,298 INFO L273 TraceCheckUtils]: 42: Hoare triple {11066#(and (or (<= main_i 84) (<= main_n 28)) (or (< 28 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11066#(and (or (<= main_i 84) (<= main_n 28)) (or (< 28 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,299 INFO L273 TraceCheckUtils]: 43: Hoare triple {11066#(and (or (<= main_i 84) (<= main_n 28)) (or (< 28 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11067#(and (or (< 28 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,303 INFO L273 TraceCheckUtils]: 44: Hoare triple {11067#(and (or (< 28 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11067#(and (or (< 28 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,304 INFO L273 TraceCheckUtils]: 45: Hoare triple {11067#(and (or (< 28 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11068#(and (or (< 28 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,304 INFO L273 TraceCheckUtils]: 46: Hoare triple {11068#(and (or (< 28 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11068#(and (or (< 28 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,305 INFO L273 TraceCheckUtils]: 47: Hoare triple {11068#(and (or (< 28 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11069#(and (or (< 28 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,306 INFO L273 TraceCheckUtils]: 48: Hoare triple {11069#(and (or (< 28 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11069#(and (or (< 28 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,306 INFO L273 TraceCheckUtils]: 49: Hoare triple {11069#(and (or (< 28 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11070#(and (or (<= main_i 100) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 100 main_i)))} is VALID [2018-12-18 17:54:35,307 INFO L273 TraceCheckUtils]: 50: Hoare triple {11070#(and (or (<= main_i 100) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 100 main_i)))} assume i <= n * 4; {11070#(and (or (<= main_i 100) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 100 main_i)))} is VALID [2018-12-18 17:54:35,307 INFO L273 TraceCheckUtils]: 51: Hoare triple {11070#(and (or (<= main_i 100) (<= main_n 28)) (= 23 (select main_a (* 4 main_n))) (or (< 28 main_n) (<= 100 main_i)))} assume a[i] != 23;i := i + 4; {11071#(and (or (< 28 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 28)))} is VALID [2018-12-18 17:54:35,308 INFO L273 TraceCheckUtils]: 52: Hoare triple {11071#(and (or (< 28 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 28)))} assume i <= n * 4; {11071#(and (or (< 28 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 28)))} is VALID [2018-12-18 17:54:35,309 INFO L273 TraceCheckUtils]: 53: Hoare triple {11071#(and (or (< 28 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 28)))} assume a[i] != 23;i := i + 4; {11072#(and (or (<= main_n 28) (<= main_i 108)) (or (< 28 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,310 INFO L273 TraceCheckUtils]: 54: Hoare triple {11072#(and (or (<= main_n 28) (<= main_i 108)) (or (< 28 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11072#(and (or (<= main_n 28) (<= main_i 108)) (or (< 28 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:35,311 INFO L273 TraceCheckUtils]: 55: Hoare triple {11072#(and (or (<= main_n 28) (<= main_i 108)) (or (< 28 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11073#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 28 main_n)) (or (<= main_n 28) (<= main_i 112)))))} is VALID [2018-12-18 17:54:35,313 INFO L273 TraceCheckUtils]: 56: Hoare triple {11073#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 28 main_n)) (or (<= main_n 28) (<= main_i 112)))))} assume i <= n * 4; {11074#(and (or (= (* 4 main_n) main_i) (and (< 28 main_n) (<= main_i 112))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2018-12-18 17:54:35,314 INFO L273 TraceCheckUtils]: 57: Hoare triple {11074#(and (or (= (* 4 main_n) main_i) (and (< 28 main_n) (<= main_i 112))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume a[i] != 23;i := i + 4; {11075#(and (<= main_i 116) (<= 29 main_n))} is VALID [2018-12-18 17:54:35,314 INFO L273 TraceCheckUtils]: 58: Hoare triple {11075#(and (<= main_i 116) (<= 29 main_n))} assume !(i <= n * 4); {11044#false} is VALID [2018-12-18 17:54:35,330 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:54:35,330 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:54:35,330 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:54:35,330 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:54:35,330 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:54:35,331 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:54:35,331 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:54:35,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:54:35,340 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-18 17:54:35,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:54:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:54:35,368 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:54:35,397 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:54:35,399 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:54:35,405 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:54:35,405 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:54:35,408 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:54:35,408 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_32]. (and (= (store v_main_a_32 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:54:35,408 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:54:36,914 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:54:36,942 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:54:36,946 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:54:36,946 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:54:36,949 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:54:36,949 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 112 .cse0) (<= main_i 116) (= 23 (select main_a .cse0)) (not (= (select main_a 112) 23)))) [2018-12-18 17:54:36,949 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 112 .cse0)) (<= 112 .cse0) (<= main_i 116))) [2018-12-18 17:54:36,988 INFO L273 TraceCheckUtils]: 0: Hoare triple {11043#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {11079#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:36,991 INFO L273 TraceCheckUtils]: 1: Hoare triple {11079#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11083#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:54:36,992 INFO L273 TraceCheckUtils]: 2: Hoare triple {11083#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {11083#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:54:36,992 INFO L273 TraceCheckUtils]: 3: Hoare triple {11083#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {11090#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:36,993 INFO L273 TraceCheckUtils]: 4: Hoare triple {11090#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11090#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:36,993 INFO L273 TraceCheckUtils]: 5: Hoare triple {11090#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11097#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:54:36,994 INFO L273 TraceCheckUtils]: 6: Hoare triple {11097#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {11097#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:54:36,994 INFO L273 TraceCheckUtils]: 7: Hoare triple {11097#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {11104#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:36,995 INFO L273 TraceCheckUtils]: 8: Hoare triple {11104#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11104#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,011 INFO L273 TraceCheckUtils]: 9: Hoare triple {11104#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11111#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,012 INFO L273 TraceCheckUtils]: 10: Hoare triple {11111#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11111#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,012 INFO L273 TraceCheckUtils]: 11: Hoare triple {11111#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11118#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,013 INFO L273 TraceCheckUtils]: 12: Hoare triple {11118#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11118#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,013 INFO L273 TraceCheckUtils]: 13: Hoare triple {11118#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11125#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,014 INFO L273 TraceCheckUtils]: 14: Hoare triple {11125#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11125#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,014 INFO L273 TraceCheckUtils]: 15: Hoare triple {11125#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11132#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,014 INFO L273 TraceCheckUtils]: 16: Hoare triple {11132#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11132#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,015 INFO L273 TraceCheckUtils]: 17: Hoare triple {11132#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11139#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,015 INFO L273 TraceCheckUtils]: 18: Hoare triple {11139#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11139#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,016 INFO L273 TraceCheckUtils]: 19: Hoare triple {11139#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11146#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,017 INFO L273 TraceCheckUtils]: 20: Hoare triple {11146#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11146#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,027 INFO L273 TraceCheckUtils]: 21: Hoare triple {11146#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11153#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,028 INFO L273 TraceCheckUtils]: 22: Hoare triple {11153#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11153#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,028 INFO L273 TraceCheckUtils]: 23: Hoare triple {11153#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11160#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,029 INFO L273 TraceCheckUtils]: 24: Hoare triple {11160#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11160#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,029 INFO L273 TraceCheckUtils]: 25: Hoare triple {11160#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11167#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,030 INFO L273 TraceCheckUtils]: 26: Hoare triple {11167#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11167#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,030 INFO L273 TraceCheckUtils]: 27: Hoare triple {11167#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11174#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,030 INFO L273 TraceCheckUtils]: 28: Hoare triple {11174#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11174#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,031 INFO L273 TraceCheckUtils]: 29: Hoare triple {11174#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11181#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,032 INFO L273 TraceCheckUtils]: 30: Hoare triple {11181#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11181#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,033 INFO L273 TraceCheckUtils]: 31: Hoare triple {11181#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11188#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,033 INFO L273 TraceCheckUtils]: 32: Hoare triple {11188#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11188#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,034 INFO L273 TraceCheckUtils]: 33: Hoare triple {11188#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11195#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,040 INFO L273 TraceCheckUtils]: 34: Hoare triple {11195#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11195#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,040 INFO L273 TraceCheckUtils]: 35: Hoare triple {11195#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11202#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,041 INFO L273 TraceCheckUtils]: 36: Hoare triple {11202#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11202#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,041 INFO L273 TraceCheckUtils]: 37: Hoare triple {11202#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11209#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,042 INFO L273 TraceCheckUtils]: 38: Hoare triple {11209#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11209#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,042 INFO L273 TraceCheckUtils]: 39: Hoare triple {11209#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11216#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:54:37,043 INFO L273 TraceCheckUtils]: 40: Hoare triple {11216#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {11216#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:54:37,043 INFO L273 TraceCheckUtils]: 41: Hoare triple {11216#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {11223#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,043 INFO L273 TraceCheckUtils]: 42: Hoare triple {11223#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11223#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,044 INFO L273 TraceCheckUtils]: 43: Hoare triple {11223#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11230#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,044 INFO L273 TraceCheckUtils]: 44: Hoare triple {11230#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11230#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,045 INFO L273 TraceCheckUtils]: 45: Hoare triple {11230#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11237#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,045 INFO L273 TraceCheckUtils]: 46: Hoare triple {11237#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11237#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,046 INFO L273 TraceCheckUtils]: 47: Hoare triple {11237#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11244#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,047 INFO L273 TraceCheckUtils]: 48: Hoare triple {11244#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11244#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,047 INFO L273 TraceCheckUtils]: 49: Hoare triple {11244#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11251#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,048 INFO L273 TraceCheckUtils]: 50: Hoare triple {11251#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11251#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,049 INFO L273 TraceCheckUtils]: 51: Hoare triple {11251#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11258#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,049 INFO L273 TraceCheckUtils]: 52: Hoare triple {11258#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11258#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,050 INFO L273 TraceCheckUtils]: 53: Hoare triple {11258#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11265#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,051 INFO L273 TraceCheckUtils]: 54: Hoare triple {11265#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11265#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,052 INFO L273 TraceCheckUtils]: 55: Hoare triple {11265#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11272#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,054 INFO L273 TraceCheckUtils]: 56: Hoare triple {11272#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11276#(and (= main_i 112) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:37,055 INFO L273 TraceCheckUtils]: 57: Hoare triple {11276#(and (= main_i 112) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11075#(and (<= main_i 116) (<= 29 main_n))} is VALID [2018-12-18 17:54:37,056 INFO L273 TraceCheckUtils]: 58: Hoare triple {11075#(and (<= main_i 116) (<= 29 main_n))} assume !(i <= n * 4); {11044#false} is VALID [2018-12-18 17:54:37,064 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:54:37,064 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:54:39,703 INFO L273 TraceCheckUtils]: 58: Hoare triple {11283#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {11044#false} is VALID [2018-12-18 17:54:39,704 INFO L273 TraceCheckUtils]: 57: Hoare triple {11287#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {11283#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:54:39,704 INFO L273 TraceCheckUtils]: 56: Hoare triple {11291#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {11287#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:54:39,705 INFO L273 TraceCheckUtils]: 55: Hoare triple {11295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {11291#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:54:39,706 INFO L273 TraceCheckUtils]: 54: Hoare triple {11295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {11295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:54:39,707 INFO L273 TraceCheckUtils]: 53: Hoare triple {11302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {11295#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:54:39,708 INFO L273 TraceCheckUtils]: 52: Hoare triple {11302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {11302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:54:39,709 INFO L273 TraceCheckUtils]: 51: Hoare triple {11309#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {11302#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:54:39,709 INFO L273 TraceCheckUtils]: 50: Hoare triple {11309#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {11309#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:54:39,710 INFO L273 TraceCheckUtils]: 49: Hoare triple {11316#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {11309#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:54:39,711 INFO L273 TraceCheckUtils]: 48: Hoare triple {11316#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {11316#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:54:39,712 INFO L273 TraceCheckUtils]: 47: Hoare triple {11323#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11316#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:54:39,712 INFO L273 TraceCheckUtils]: 46: Hoare triple {11323#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {11323#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:54:39,713 INFO L273 TraceCheckUtils]: 45: Hoare triple {11330#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {11323#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:54:39,714 INFO L273 TraceCheckUtils]: 44: Hoare triple {11330#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {11330#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:54:39,715 INFO L273 TraceCheckUtils]: 43: Hoare triple {11337#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11330#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:54:39,716 INFO L273 TraceCheckUtils]: 42: Hoare triple {11337#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {11337#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:54:39,717 INFO L273 TraceCheckUtils]: 41: Hoare triple {11344#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11337#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:54:39,717 INFO L273 TraceCheckUtils]: 40: Hoare triple {11344#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {11344#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:54:39,718 INFO L273 TraceCheckUtils]: 39: Hoare triple {11351#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11344#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:54:39,719 INFO L273 TraceCheckUtils]: 38: Hoare triple {11351#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {11351#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:54:39,720 INFO L273 TraceCheckUtils]: 37: Hoare triple {11358#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {11351#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:54:39,720 INFO L273 TraceCheckUtils]: 36: Hoare triple {11358#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {11358#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:54:39,721 INFO L273 TraceCheckUtils]: 35: Hoare triple {11365#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11358#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:54:39,722 INFO L273 TraceCheckUtils]: 34: Hoare triple {11365#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {11365#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:54:39,723 INFO L273 TraceCheckUtils]: 33: Hoare triple {11372#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11365#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:54:39,724 INFO L273 TraceCheckUtils]: 32: Hoare triple {11372#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {11372#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:54:39,725 INFO L273 TraceCheckUtils]: 31: Hoare triple {11379#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {11372#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:54:39,725 INFO L273 TraceCheckUtils]: 30: Hoare triple {11379#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {11379#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:54:39,726 INFO L273 TraceCheckUtils]: 29: Hoare triple {11386#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11379#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:54:39,727 INFO L273 TraceCheckUtils]: 28: Hoare triple {11386#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {11386#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:54:39,728 INFO L273 TraceCheckUtils]: 27: Hoare triple {11393#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {11386#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:54:39,728 INFO L273 TraceCheckUtils]: 26: Hoare triple {11393#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {11393#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:54:39,729 INFO L273 TraceCheckUtils]: 25: Hoare triple {11400#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {11393#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:54:39,730 INFO L273 TraceCheckUtils]: 24: Hoare triple {11400#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {11400#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:54:39,731 INFO L273 TraceCheckUtils]: 23: Hoare triple {11407#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {11400#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:54:39,732 INFO L273 TraceCheckUtils]: 22: Hoare triple {11407#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {11407#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:54:39,733 INFO L273 TraceCheckUtils]: 21: Hoare triple {11414#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {11407#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:54:39,733 INFO L273 TraceCheckUtils]: 20: Hoare triple {11414#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {11414#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:54:39,734 INFO L273 TraceCheckUtils]: 19: Hoare triple {11421#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {11414#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:54:39,735 INFO L273 TraceCheckUtils]: 18: Hoare triple {11421#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {11421#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:54:39,736 INFO L273 TraceCheckUtils]: 17: Hoare triple {11428#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {11421#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:54:39,736 INFO L273 TraceCheckUtils]: 16: Hoare triple {11428#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {11428#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:54:39,737 INFO L273 TraceCheckUtils]: 15: Hoare triple {11435#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11428#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:54:39,738 INFO L273 TraceCheckUtils]: 14: Hoare triple {11435#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {11435#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:54:39,739 INFO L273 TraceCheckUtils]: 13: Hoare triple {11442#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11435#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:54:39,740 INFO L273 TraceCheckUtils]: 12: Hoare triple {11442#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {11442#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:54:39,741 INFO L273 TraceCheckUtils]: 11: Hoare triple {11449#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11442#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:54:39,741 INFO L273 TraceCheckUtils]: 10: Hoare triple {11449#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {11449#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:54:39,742 INFO L273 TraceCheckUtils]: 9: Hoare triple {11456#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {11449#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:54:39,743 INFO L273 TraceCheckUtils]: 8: Hoare triple {11456#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {11456#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:54:39,744 INFO L273 TraceCheckUtils]: 7: Hoare triple {11463#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {11456#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:54:39,744 INFO L273 TraceCheckUtils]: 6: Hoare triple {11463#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {11463#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:54:39,745 INFO L273 TraceCheckUtils]: 5: Hoare triple {11470#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {11463#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:54:39,746 INFO L273 TraceCheckUtils]: 4: Hoare triple {11470#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {11470#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:54:39,747 INFO L273 TraceCheckUtils]: 3: Hoare triple {11477#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {11470#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:54:39,750 INFO L273 TraceCheckUtils]: 2: Hoare triple {11477#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {11477#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:54:39,751 INFO L273 TraceCheckUtils]: 1: Hoare triple {11484#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {11477#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:54:39,752 INFO L273 TraceCheckUtils]: 0: Hoare triple {11043#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {11484#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:54:39,765 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:54:39,783 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:54:39,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 92 [2018-12-18 17:54:39,783 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:54:39,784 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 59 [2018-12-18 17:54:39,784 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:54:39,784 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 63 states. [2018-12-18 17:54:39,922 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 117 edges. 117 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:54:39,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 63 states [2018-12-18 17:54:39,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2018-12-18 17:54:39,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1124, Invalid=7618, Unknown=0, NotChecked=0, Total=8742 [2018-12-18 17:54:39,924 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand 63 states. [2018-12-18 17:54:45,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:54:45,085 INFO L93 Difference]: Finished difference Result 64 states and 64 transitions. [2018-12-18 17:54:45,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-12-18 17:54:45,085 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 59 [2018-12-18 17:54:45,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:54:45,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-12-18 17:54:45,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 64 transitions. [2018-12-18 17:54:45,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-12-18 17:54:45,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 64 transitions. [2018-12-18 17:54:45,087 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 33 states and 64 transitions. [2018-12-18 17:54:45,154 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 64 edges. 64 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:54:45,156 INFO L225 Difference]: With dead ends: 64 [2018-12-18 17:54:45,156 INFO L226 Difference]: Without dead ends: 63 [2018-12-18 17:54:45,156 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1980 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=1124, Invalid=7618, Unknown=0, NotChecked=0, Total=8742 [2018-12-18 17:54:45,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-12-18 17:54:45,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2018-12-18 17:54:45,214 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:54:45,214 INFO L82 GeneralOperation]: Start isEquivalent. First operand 63 states. Second operand 62 states. [2018-12-18 17:54:45,215 INFO L74 IsIncluded]: Start isIncluded. First operand 63 states. Second operand 62 states. [2018-12-18 17:54:45,215 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 62 states. [2018-12-18 17:54:45,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:54:45,216 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2018-12-18 17:54:45,217 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2018-12-18 17:54:45,217 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:54:45,217 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:54:45,217 INFO L74 IsIncluded]: Start isIncluded. First operand 62 states. Second operand 63 states. [2018-12-18 17:54:45,217 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 63 states. [2018-12-18 17:54:45,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:54:45,218 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2018-12-18 17:54:45,219 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2018-12-18 17:54:45,219 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:54:45,219 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:54:45,219 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:54:45,219 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:54:45,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-12-18 17:54:45,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2018-12-18 17:54:45,220 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 59 [2018-12-18 17:54:45,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:54:45,221 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2018-12-18 17:54:45,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has 63 states. [2018-12-18 17:54:45,221 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2018-12-18 17:54:45,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-18 17:54:45,221 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:54:45,221 INFO L402 BasicCegarLoop]: trace histogram [30, 29, 1, 1] [2018-12-18 17:54:45,222 INFO L423 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:54:45,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:54:45,222 INFO L82 PathProgramCache]: Analyzing trace with hash -176267942, now seen corresponding path program 29 times [2018-12-18 17:54:45,222 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:54:45,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:54:45,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:54:45,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:54:45,223 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:54:45,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:54:46,676 INFO L273 TraceCheckUtils]: 0: Hoare triple {11800#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {11802#(and (or (<= 0 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,677 INFO L273 TraceCheckUtils]: 1: Hoare triple {11802#(and (or (<= 0 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11803#(and (or (<= main_n 29) (<= main_i 4)) (or (< 29 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,678 INFO L273 TraceCheckUtils]: 2: Hoare triple {11803#(and (or (<= main_n 29) (<= main_i 4)) (or (< 29 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11803#(and (or (<= main_n 29) (<= main_i 4)) (or (< 29 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,679 INFO L273 TraceCheckUtils]: 3: Hoare triple {11803#(and (or (<= main_n 29) (<= main_i 4)) (or (< 29 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11804#(and (or (<= main_n 29) (<= main_i 8)) (or (< 29 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,680 INFO L273 TraceCheckUtils]: 4: Hoare triple {11804#(and (or (<= main_n 29) (<= main_i 8)) (or (< 29 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11804#(and (or (<= main_n 29) (<= main_i 8)) (or (< 29 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,681 INFO L273 TraceCheckUtils]: 5: Hoare triple {11804#(and (or (<= main_n 29) (<= main_i 8)) (or (< 29 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11805#(and (or (< 29 main_n) (<= 12 main_i)) (or (<= main_n 29) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,682 INFO L273 TraceCheckUtils]: 6: Hoare triple {11805#(and (or (< 29 main_n) (<= 12 main_i)) (or (<= main_n 29) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11805#(and (or (< 29 main_n) (<= 12 main_i)) (or (<= main_n 29) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,683 INFO L273 TraceCheckUtils]: 7: Hoare triple {11805#(and (or (< 29 main_n) (<= 12 main_i)) (or (<= main_n 29) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11806#(and (or (<= main_n 29) (<= main_i 16)) (or (< 29 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,684 INFO L273 TraceCheckUtils]: 8: Hoare triple {11806#(and (or (<= main_n 29) (<= main_i 16)) (or (< 29 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11806#(and (or (<= main_n 29) (<= main_i 16)) (or (< 29 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,685 INFO L273 TraceCheckUtils]: 9: Hoare triple {11806#(and (or (<= main_n 29) (<= main_i 16)) (or (< 29 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11807#(and (or (< 29 main_n) (<= 20 main_i)) (or (<= main_n 29) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,686 INFO L273 TraceCheckUtils]: 10: Hoare triple {11807#(and (or (< 29 main_n) (<= 20 main_i)) (or (<= main_n 29) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11807#(and (or (< 29 main_n) (<= 20 main_i)) (or (<= main_n 29) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,687 INFO L273 TraceCheckUtils]: 11: Hoare triple {11807#(and (or (< 29 main_n) (<= 20 main_i)) (or (<= main_n 29) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11808#(and (or (< 29 main_n) (<= 24 main_i)) (or (<= main_n 29) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,687 INFO L273 TraceCheckUtils]: 12: Hoare triple {11808#(and (or (< 29 main_n) (<= 24 main_i)) (or (<= main_n 29) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11808#(and (or (< 29 main_n) (<= 24 main_i)) (or (<= main_n 29) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,688 INFO L273 TraceCheckUtils]: 13: Hoare triple {11808#(and (or (< 29 main_n) (<= 24 main_i)) (or (<= main_n 29) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11809#(and (or (<= 28 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,689 INFO L273 TraceCheckUtils]: 14: Hoare triple {11809#(and (or (<= 28 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11809#(and (or (<= 28 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,690 INFO L273 TraceCheckUtils]: 15: Hoare triple {11809#(and (or (<= 28 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11810#(and (or (<= main_i 32) (<= main_n 29)) (or (<= 32 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,691 INFO L273 TraceCheckUtils]: 16: Hoare triple {11810#(and (or (<= main_i 32) (<= main_n 29)) (or (<= 32 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11810#(and (or (<= main_i 32) (<= main_n 29)) (or (<= 32 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,692 INFO L273 TraceCheckUtils]: 17: Hoare triple {11810#(and (or (<= main_i 32) (<= main_n 29)) (or (<= 32 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11811#(and (or (<= main_i 36) (<= main_n 29)) (or (< 29 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,693 INFO L273 TraceCheckUtils]: 18: Hoare triple {11811#(and (or (<= main_i 36) (<= main_n 29)) (or (< 29 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11811#(and (or (<= main_i 36) (<= main_n 29)) (or (< 29 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,694 INFO L273 TraceCheckUtils]: 19: Hoare triple {11811#(and (or (<= main_i 36) (<= main_n 29)) (or (< 29 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11812#(and (or (<= 40 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,695 INFO L273 TraceCheckUtils]: 20: Hoare triple {11812#(and (or (<= 40 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11812#(and (or (<= 40 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,696 INFO L273 TraceCheckUtils]: 21: Hoare triple {11812#(and (or (<= 40 main_i) (< 29 main_n)) (or (<= main_n 29) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11813#(and (or (<= main_n 29) (<= main_i 44)) (or (<= 44 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,696 INFO L273 TraceCheckUtils]: 22: Hoare triple {11813#(and (or (<= main_n 29) (<= main_i 44)) (or (<= 44 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11813#(and (or (<= main_n 29) (<= main_i 44)) (or (<= 44 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,697 INFO L273 TraceCheckUtils]: 23: Hoare triple {11813#(and (or (<= main_n 29) (<= main_i 44)) (or (<= 44 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11814#(and (or (<= main_n 29) (<= main_i 48)) (or (<= 48 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,698 INFO L273 TraceCheckUtils]: 24: Hoare triple {11814#(and (or (<= main_n 29) (<= main_i 48)) (or (<= 48 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11814#(and (or (<= main_n 29) (<= main_i 48)) (or (<= 48 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,699 INFO L273 TraceCheckUtils]: 25: Hoare triple {11814#(and (or (<= main_n 29) (<= main_i 48)) (or (<= 48 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11815#(and (or (<= main_i 52) (<= main_n 29)) (or (< 29 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,700 INFO L273 TraceCheckUtils]: 26: Hoare triple {11815#(and (or (<= main_i 52) (<= main_n 29)) (or (< 29 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11815#(and (or (<= main_i 52) (<= main_n 29)) (or (< 29 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,701 INFO L273 TraceCheckUtils]: 27: Hoare triple {11815#(and (or (<= main_i 52) (<= main_n 29)) (or (< 29 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11816#(and (or (< 29 main_n) (<= 56 main_i)) (or (<= main_n 29) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,702 INFO L273 TraceCheckUtils]: 28: Hoare triple {11816#(and (or (< 29 main_n) (<= 56 main_i)) (or (<= main_n 29) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11816#(and (or (< 29 main_n) (<= 56 main_i)) (or (<= main_n 29) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,703 INFO L273 TraceCheckUtils]: 29: Hoare triple {11816#(and (or (< 29 main_n) (<= 56 main_i)) (or (<= main_n 29) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11817#(and (or (<= main_n 29) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))) (or (< 29 main_n) (<= 60 main_i)))} is VALID [2018-12-18 17:54:46,703 INFO L273 TraceCheckUtils]: 30: Hoare triple {11817#(and (or (<= main_n 29) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))) (or (< 29 main_n) (<= 60 main_i)))} assume i <= n * 4; {11817#(and (or (<= main_n 29) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))) (or (< 29 main_n) (<= 60 main_i)))} is VALID [2018-12-18 17:54:46,705 INFO L273 TraceCheckUtils]: 31: Hoare triple {11817#(and (or (<= main_n 29) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))) (or (< 29 main_n) (<= 60 main_i)))} assume a[i] != 23;i := i + 4; {11818#(and (or (<= main_n 29) (<= main_i 64)) (or (<= 64 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,705 INFO L273 TraceCheckUtils]: 32: Hoare triple {11818#(and (or (<= main_n 29) (<= main_i 64)) (or (<= 64 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11818#(and (or (<= main_n 29) (<= main_i 64)) (or (<= 64 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,706 INFO L273 TraceCheckUtils]: 33: Hoare triple {11818#(and (or (<= main_n 29) (<= main_i 64)) (or (<= 64 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11819#(and (or (<= main_n 29) (<= main_i 68)) (or (< 29 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,707 INFO L273 TraceCheckUtils]: 34: Hoare triple {11819#(and (or (<= main_n 29) (<= main_i 68)) (or (< 29 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11819#(and (or (<= main_n 29) (<= main_i 68)) (or (< 29 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,708 INFO L273 TraceCheckUtils]: 35: Hoare triple {11819#(and (or (<= main_n 29) (<= main_i 68)) (or (< 29 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11820#(and (or (<= main_n 29) (<= main_i 72)) (or (<= 72 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,709 INFO L273 TraceCheckUtils]: 36: Hoare triple {11820#(and (or (<= main_n 29) (<= main_i 72)) (or (<= 72 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11820#(and (or (<= main_n 29) (<= main_i 72)) (or (<= 72 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,710 INFO L273 TraceCheckUtils]: 37: Hoare triple {11820#(and (or (<= main_n 29) (<= main_i 72)) (or (<= 72 main_i) (< 29 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11821#(and (or (<= 76 main_i) (< 29 main_n)) (or (<= main_i 76) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,711 INFO L273 TraceCheckUtils]: 38: Hoare triple {11821#(and (or (<= 76 main_i) (< 29 main_n)) (or (<= main_i 76) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11821#(and (or (<= 76 main_i) (< 29 main_n)) (or (<= main_i 76) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,712 INFO L273 TraceCheckUtils]: 39: Hoare triple {11821#(and (or (<= 76 main_i) (< 29 main_n)) (or (<= main_i 76) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11822#(and (or (< 29 main_n) (<= 80 main_i)) (or (<= main_n 29) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,712 INFO L273 TraceCheckUtils]: 40: Hoare triple {11822#(and (or (< 29 main_n) (<= 80 main_i)) (or (<= main_n 29) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11822#(and (or (< 29 main_n) (<= 80 main_i)) (or (<= main_n 29) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,713 INFO L273 TraceCheckUtils]: 41: Hoare triple {11822#(and (or (< 29 main_n) (<= 80 main_i)) (or (<= main_n 29) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11823#(and (or (< 29 main_n) (<= 84 main_i)) (or (<= main_n 29) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,714 INFO L273 TraceCheckUtils]: 42: Hoare triple {11823#(and (or (< 29 main_n) (<= 84 main_i)) (or (<= main_n 29) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11823#(and (or (< 29 main_n) (<= 84 main_i)) (or (<= main_n 29) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,715 INFO L273 TraceCheckUtils]: 43: Hoare triple {11823#(and (or (< 29 main_n) (<= 84 main_i)) (or (<= main_n 29) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11824#(and (or (<= main_i 88) (<= main_n 29)) (or (< 29 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,716 INFO L273 TraceCheckUtils]: 44: Hoare triple {11824#(and (or (<= main_i 88) (<= main_n 29)) (or (< 29 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11824#(and (or (<= main_i 88) (<= main_n 29)) (or (< 29 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,717 INFO L273 TraceCheckUtils]: 45: Hoare triple {11824#(and (or (<= main_i 88) (<= main_n 29)) (or (< 29 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11825#(and (or (<= main_i 92) (<= main_n 29)) (or (< 29 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,718 INFO L273 TraceCheckUtils]: 46: Hoare triple {11825#(and (or (<= main_i 92) (<= main_n 29)) (or (< 29 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11825#(and (or (<= main_i 92) (<= main_n 29)) (or (< 29 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,719 INFO L273 TraceCheckUtils]: 47: Hoare triple {11825#(and (or (<= main_i 92) (<= main_n 29)) (or (< 29 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11826#(and (or (< 29 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 29)))} is VALID [2018-12-18 17:54:46,720 INFO L273 TraceCheckUtils]: 48: Hoare triple {11826#(and (or (< 29 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 29)))} assume i <= n * 4; {11826#(and (or (< 29 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 29)))} is VALID [2018-12-18 17:54:46,721 INFO L273 TraceCheckUtils]: 49: Hoare triple {11826#(and (or (< 29 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 29)))} assume a[i] != 23;i := i + 4; {11827#(and (or (< 29 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,721 INFO L273 TraceCheckUtils]: 50: Hoare triple {11827#(and (or (< 29 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11827#(and (or (< 29 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,722 INFO L273 TraceCheckUtils]: 51: Hoare triple {11827#(and (or (< 29 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 29)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11828#(and (or (<= main_i 104) (<= main_n 29)) (or (< 29 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,723 INFO L273 TraceCheckUtils]: 52: Hoare triple {11828#(and (or (<= main_i 104) (<= main_n 29)) (or (< 29 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11828#(and (or (<= main_i 104) (<= main_n 29)) (or (< 29 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,724 INFO L273 TraceCheckUtils]: 53: Hoare triple {11828#(and (or (<= main_i 104) (<= main_n 29)) (or (< 29 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11829#(and (or (< 29 main_n) (<= 108 main_i)) (or (<= main_n 29) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,725 INFO L273 TraceCheckUtils]: 54: Hoare triple {11829#(and (or (< 29 main_n) (<= 108 main_i)) (or (<= main_n 29) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11829#(and (or (< 29 main_n) (<= 108 main_i)) (or (<= main_n 29) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,726 INFO L273 TraceCheckUtils]: 55: Hoare triple {11829#(and (or (< 29 main_n) (<= 108 main_i)) (or (<= main_n 29) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11830#(and (or (<= main_n 29) (<= main_i 112)) (or (< 29 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,727 INFO L273 TraceCheckUtils]: 56: Hoare triple {11830#(and (or (<= main_n 29) (<= main_i 112)) (or (< 29 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11830#(and (or (<= main_n 29) (<= main_i 112)) (or (< 29 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:46,728 INFO L273 TraceCheckUtils]: 57: Hoare triple {11830#(and (or (<= main_n 29) (<= main_i 112)) (or (< 29 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11831#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (< 29 main_n) (<= (* 4 main_n) main_i)) (or (<= main_n 29) (<= main_i 116)))))} is VALID [2018-12-18 17:54:46,729 INFO L273 TraceCheckUtils]: 58: Hoare triple {11831#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (< 29 main_n) (<= (* 4 main_n) main_i)) (or (<= main_n 29) (<= main_i 116)))))} assume i <= n * 4; {11832#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 29 main_n) (<= main_i 116))))} is VALID [2018-12-18 17:54:46,730 INFO L273 TraceCheckUtils]: 59: Hoare triple {11832#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 29 main_n) (<= main_i 116))))} assume a[i] != 23;i := i + 4; {11833#(and (<= main_i 120) (< 29 main_n))} is VALID [2018-12-18 17:54:46,731 INFO L273 TraceCheckUtils]: 60: Hoare triple {11833#(and (<= main_i 120) (< 29 main_n))} assume !(i <= n * 4); {11801#false} is VALID [2018-12-18 17:54:46,752 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:54:46,753 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:54:46,753 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:54:46,753 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:54:46,753 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:54:46,753 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:54:46,753 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:54:46,766 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-18 17:54:46,766 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-18 17:54:46,807 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 30 check-sat command(s) [2018-12-18 17:54:46,807 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:54:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:54:46,819 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:54:46,837 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:54:46,839 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:54:46,847 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:54:46,847 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:54:46,849 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:54:46,849 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_33]. (and (= main_a (store v_main_a_33 (* 4 main_n) 23)) (= main_i 0)) [2018-12-18 17:54:46,849 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:54:48,485 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:54:48,487 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:54:48,493 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:54:48,494 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:54:48,496 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:54:48,496 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 120) (<= 116 .cse0) (not (= (select main_a 116) 23)) (= 23 (select main_a .cse0)))) [2018-12-18 17:54:48,497 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 116 .cse0)) (<= main_i 120) (<= 116 .cse0))) [2018-12-18 17:54:48,533 INFO L273 TraceCheckUtils]: 0: Hoare triple {11800#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {11837#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,533 INFO L273 TraceCheckUtils]: 1: Hoare triple {11837#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11841#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:54:48,534 INFO L273 TraceCheckUtils]: 2: Hoare triple {11841#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {11841#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:54:48,534 INFO L273 TraceCheckUtils]: 3: Hoare triple {11841#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {11848#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,557 INFO L273 TraceCheckUtils]: 4: Hoare triple {11848#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11848#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,571 INFO L273 TraceCheckUtils]: 5: Hoare triple {11848#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11855#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:54:48,580 INFO L273 TraceCheckUtils]: 6: Hoare triple {11855#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {11855#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:54:48,593 INFO L273 TraceCheckUtils]: 7: Hoare triple {11855#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {11862#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,601 INFO L273 TraceCheckUtils]: 8: Hoare triple {11862#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11862#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,615 INFO L273 TraceCheckUtils]: 9: Hoare triple {11862#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11869#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,617 INFO L273 TraceCheckUtils]: 10: Hoare triple {11869#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11869#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,617 INFO L273 TraceCheckUtils]: 11: Hoare triple {11869#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11876#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,618 INFO L273 TraceCheckUtils]: 12: Hoare triple {11876#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11876#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,618 INFO L273 TraceCheckUtils]: 13: Hoare triple {11876#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11883#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,619 INFO L273 TraceCheckUtils]: 14: Hoare triple {11883#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11883#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,619 INFO L273 TraceCheckUtils]: 15: Hoare triple {11883#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11890#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,619 INFO L273 TraceCheckUtils]: 16: Hoare triple {11890#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11890#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,620 INFO L273 TraceCheckUtils]: 17: Hoare triple {11890#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11897#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,620 INFO L273 TraceCheckUtils]: 18: Hoare triple {11897#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11897#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,621 INFO L273 TraceCheckUtils]: 19: Hoare triple {11897#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11904#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,621 INFO L273 TraceCheckUtils]: 20: Hoare triple {11904#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11904#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,622 INFO L273 TraceCheckUtils]: 21: Hoare triple {11904#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11911#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,623 INFO L273 TraceCheckUtils]: 22: Hoare triple {11911#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11911#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,623 INFO L273 TraceCheckUtils]: 23: Hoare triple {11911#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11918#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,624 INFO L273 TraceCheckUtils]: 24: Hoare triple {11918#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11918#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,625 INFO L273 TraceCheckUtils]: 25: Hoare triple {11918#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11925#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,625 INFO L273 TraceCheckUtils]: 26: Hoare triple {11925#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11925#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,626 INFO L273 TraceCheckUtils]: 27: Hoare triple {11925#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11932#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,627 INFO L273 TraceCheckUtils]: 28: Hoare triple {11932#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11932#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,627 INFO L273 TraceCheckUtils]: 29: Hoare triple {11932#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11939#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,628 INFO L273 TraceCheckUtils]: 30: Hoare triple {11939#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11939#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,629 INFO L273 TraceCheckUtils]: 31: Hoare triple {11939#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11946#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,629 INFO L273 TraceCheckUtils]: 32: Hoare triple {11946#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11946#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,630 INFO L273 TraceCheckUtils]: 33: Hoare triple {11946#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11953#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,631 INFO L273 TraceCheckUtils]: 34: Hoare triple {11953#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11953#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,631 INFO L273 TraceCheckUtils]: 35: Hoare triple {11953#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11960#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,632 INFO L273 TraceCheckUtils]: 36: Hoare triple {11960#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11960#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,633 INFO L273 TraceCheckUtils]: 37: Hoare triple {11960#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11967#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,633 INFO L273 TraceCheckUtils]: 38: Hoare triple {11967#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11967#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,634 INFO L273 TraceCheckUtils]: 39: Hoare triple {11967#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11974#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:54:48,635 INFO L273 TraceCheckUtils]: 40: Hoare triple {11974#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {11974#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:54:48,635 INFO L273 TraceCheckUtils]: 41: Hoare triple {11974#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {11981#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,636 INFO L273 TraceCheckUtils]: 42: Hoare triple {11981#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11981#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,637 INFO L273 TraceCheckUtils]: 43: Hoare triple {11981#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11988#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,638 INFO L273 TraceCheckUtils]: 44: Hoare triple {11988#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11988#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,638 INFO L273 TraceCheckUtils]: 45: Hoare triple {11988#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11995#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,639 INFO L273 TraceCheckUtils]: 46: Hoare triple {11995#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {11995#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,640 INFO L273 TraceCheckUtils]: 47: Hoare triple {11995#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12002#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,640 INFO L273 TraceCheckUtils]: 48: Hoare triple {12002#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12002#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,641 INFO L273 TraceCheckUtils]: 49: Hoare triple {12002#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12009#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,642 INFO L273 TraceCheckUtils]: 50: Hoare triple {12009#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12009#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,642 INFO L273 TraceCheckUtils]: 51: Hoare triple {12009#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12016#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,643 INFO L273 TraceCheckUtils]: 52: Hoare triple {12016#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12016#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,644 INFO L273 TraceCheckUtils]: 53: Hoare triple {12016#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12023#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,644 INFO L273 TraceCheckUtils]: 54: Hoare triple {12023#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12023#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,645 INFO L273 TraceCheckUtils]: 55: Hoare triple {12023#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12030#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,646 INFO L273 TraceCheckUtils]: 56: Hoare triple {12030#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12030#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,646 INFO L273 TraceCheckUtils]: 57: Hoare triple {12030#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12037#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,647 INFO L273 TraceCheckUtils]: 58: Hoare triple {12037#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12041#(and (<= main_i (* 4 main_n)) (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:54:48,648 INFO L273 TraceCheckUtils]: 59: Hoare triple {12041#(and (<= main_i (* 4 main_n)) (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {11833#(and (<= main_i 120) (< 29 main_n))} is VALID [2018-12-18 17:54:48,649 INFO L273 TraceCheckUtils]: 60: Hoare triple {11833#(and (<= main_i 120) (< 29 main_n))} assume !(i <= n * 4); {11801#false} is VALID [2018-12-18 17:54:48,658 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:54:48,658 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:54:51,447 INFO L273 TraceCheckUtils]: 60: Hoare triple {12048#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {11801#false} is VALID [2018-12-18 17:54:51,449 INFO L273 TraceCheckUtils]: 59: Hoare triple {12052#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {12048#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:54:51,449 INFO L273 TraceCheckUtils]: 58: Hoare triple {12056#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {12052#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:54:51,450 INFO L273 TraceCheckUtils]: 57: Hoare triple {12060#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {12056#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:54:51,450 INFO L273 TraceCheckUtils]: 56: Hoare triple {12060#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {12060#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:54:51,451 INFO L273 TraceCheckUtils]: 55: Hoare triple {12067#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {12060#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:54:51,451 INFO L273 TraceCheckUtils]: 54: Hoare triple {12067#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {12067#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:54:51,452 INFO L273 TraceCheckUtils]: 53: Hoare triple {12074#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {12067#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:54:51,452 INFO L273 TraceCheckUtils]: 52: Hoare triple {12074#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {12074#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:54:51,454 INFO L273 TraceCheckUtils]: 51: Hoare triple {12081#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {12074#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:54:51,454 INFO L273 TraceCheckUtils]: 50: Hoare triple {12081#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {12081#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:54:51,455 INFO L273 TraceCheckUtils]: 49: Hoare triple {12088#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12081#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:54:51,456 INFO L273 TraceCheckUtils]: 48: Hoare triple {12088#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {12088#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:54:51,457 INFO L273 TraceCheckUtils]: 47: Hoare triple {12095#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {12088#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:54:51,457 INFO L273 TraceCheckUtils]: 46: Hoare triple {12095#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {12095#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:54:51,458 INFO L273 TraceCheckUtils]: 45: Hoare triple {12102#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12095#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:54:51,459 INFO L273 TraceCheckUtils]: 44: Hoare triple {12102#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {12102#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:54:51,460 INFO L273 TraceCheckUtils]: 43: Hoare triple {12109#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12102#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:54:51,461 INFO L273 TraceCheckUtils]: 42: Hoare triple {12109#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {12109#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:54:51,462 INFO L273 TraceCheckUtils]: 41: Hoare triple {12116#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12109#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:54:51,462 INFO L273 TraceCheckUtils]: 40: Hoare triple {12116#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {12116#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:54:51,463 INFO L273 TraceCheckUtils]: 39: Hoare triple {12123#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {12116#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:54:51,464 INFO L273 TraceCheckUtils]: 38: Hoare triple {12123#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {12123#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:54:51,465 INFO L273 TraceCheckUtils]: 37: Hoare triple {12130#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12123#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:54:51,466 INFO L273 TraceCheckUtils]: 36: Hoare triple {12130#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {12130#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:54:51,467 INFO L273 TraceCheckUtils]: 35: Hoare triple {12137#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12130#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:54:51,467 INFO L273 TraceCheckUtils]: 34: Hoare triple {12137#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {12137#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:54:51,468 INFO L273 TraceCheckUtils]: 33: Hoare triple {12144#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {12137#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:54:51,469 INFO L273 TraceCheckUtils]: 32: Hoare triple {12144#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {12144#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:54:51,470 INFO L273 TraceCheckUtils]: 31: Hoare triple {12151#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12144#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:54:51,470 INFO L273 TraceCheckUtils]: 30: Hoare triple {12151#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {12151#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:54:51,471 INFO L273 TraceCheckUtils]: 29: Hoare triple {12158#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {12151#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:54:51,472 INFO L273 TraceCheckUtils]: 28: Hoare triple {12158#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {12158#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:54:51,473 INFO L273 TraceCheckUtils]: 27: Hoare triple {12165#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {12158#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:54:51,474 INFO L273 TraceCheckUtils]: 26: Hoare triple {12165#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {12165#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:54:51,475 INFO L273 TraceCheckUtils]: 25: Hoare triple {12172#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {12165#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:54:51,475 INFO L273 TraceCheckUtils]: 24: Hoare triple {12172#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {12172#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:54:51,476 INFO L273 TraceCheckUtils]: 23: Hoare triple {12179#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {12172#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:54:51,477 INFO L273 TraceCheckUtils]: 22: Hoare triple {12179#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {12179#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:54:51,478 INFO L273 TraceCheckUtils]: 21: Hoare triple {12186#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {12179#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:54:51,478 INFO L273 TraceCheckUtils]: 20: Hoare triple {12186#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {12186#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:54:51,479 INFO L273 TraceCheckUtils]: 19: Hoare triple {12193#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {12186#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:54:51,480 INFO L273 TraceCheckUtils]: 18: Hoare triple {12193#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {12193#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:54:51,481 INFO L273 TraceCheckUtils]: 17: Hoare triple {12200#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12193#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:54:51,481 INFO L273 TraceCheckUtils]: 16: Hoare triple {12200#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {12200#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:54:51,483 INFO L273 TraceCheckUtils]: 15: Hoare triple {12207#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12200#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:54:51,483 INFO L273 TraceCheckUtils]: 14: Hoare triple {12207#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {12207#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:54:51,484 INFO L273 TraceCheckUtils]: 13: Hoare triple {12214#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12207#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:54:51,485 INFO L273 TraceCheckUtils]: 12: Hoare triple {12214#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {12214#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:54:51,486 INFO L273 TraceCheckUtils]: 11: Hoare triple {12221#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {12214#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:54:51,487 INFO L273 TraceCheckUtils]: 10: Hoare triple {12221#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {12221#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:54:51,488 INFO L273 TraceCheckUtils]: 9: Hoare triple {12228#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12221#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:54:51,488 INFO L273 TraceCheckUtils]: 8: Hoare triple {12228#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {12228#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:54:51,489 INFO L273 TraceCheckUtils]: 7: Hoare triple {12235#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {12228#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:54:51,490 INFO L273 TraceCheckUtils]: 6: Hoare triple {12235#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {12235#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:54:51,491 INFO L273 TraceCheckUtils]: 5: Hoare triple {12242#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {12235#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:54:51,491 INFO L273 TraceCheckUtils]: 4: Hoare triple {12242#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {12242#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:54:51,492 INFO L273 TraceCheckUtils]: 3: Hoare triple {12249#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {12242#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:54:51,493 INFO L273 TraceCheckUtils]: 2: Hoare triple {12249#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {12249#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:54:51,494 INFO L273 TraceCheckUtils]: 1: Hoare triple {12256#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12249#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:54:51,495 INFO L273 TraceCheckUtils]: 0: Hoare triple {11800#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {12256#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:54:51,509 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:54:51,529 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:54:51,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 95 [2018-12-18 17:54:51,529 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:54:51,530 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 61 [2018-12-18 17:54:51,530 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:54:51,530 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 65 states. [2018-12-18 17:54:51,674 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 121 edges. 121 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:54:51,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 65 states [2018-12-18 17:54:51,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2018-12-18 17:54:51,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1192, Invalid=8120, Unknown=0, NotChecked=0, Total=9312 [2018-12-18 17:54:51,675 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 65 states. [2018-12-18 17:54:56,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:54:56,817 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2018-12-18 17:54:56,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-12-18 17:54:56,817 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 61 [2018-12-18 17:54:56,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:54:56,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-12-18 17:54:56,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 66 transitions. [2018-12-18 17:54:56,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-12-18 17:54:56,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 66 transitions. [2018-12-18 17:54:56,819 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 34 states and 66 transitions. [2018-12-18 17:54:56,889 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 66 edges. 66 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:54:56,890 INFO L225 Difference]: With dead ends: 66 [2018-12-18 17:54:56,890 INFO L226 Difference]: Without dead ends: 65 [2018-12-18 17:54:56,891 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2108 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=1192, Invalid=8120, Unknown=0, NotChecked=0, Total=9312 [2018-12-18 17:54:56,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-12-18 17:54:56,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64. [2018-12-18 17:54:56,948 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:54:56,948 INFO L82 GeneralOperation]: Start isEquivalent. First operand 65 states. Second operand 64 states. [2018-12-18 17:54:56,949 INFO L74 IsIncluded]: Start isIncluded. First operand 65 states. Second operand 64 states. [2018-12-18 17:54:56,949 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 64 states. [2018-12-18 17:54:56,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:54:56,950 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2018-12-18 17:54:56,950 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2018-12-18 17:54:56,951 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:54:56,951 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:54:56,951 INFO L74 IsIncluded]: Start isIncluded. First operand 64 states. Second operand 65 states. [2018-12-18 17:54:56,951 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 65 states. [2018-12-18 17:54:56,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:54:56,952 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2018-12-18 17:54:56,953 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2018-12-18 17:54:56,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:54:56,953 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:54:56,953 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:54:56,953 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:54:56,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-12-18 17:54:56,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2018-12-18 17:54:56,954 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 61 [2018-12-18 17:54:56,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:54:56,955 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2018-12-18 17:54:56,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has 65 states. [2018-12-18 17:54:56,955 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2018-12-18 17:54:56,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-12-18 17:54:56,955 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:54:56,956 INFO L402 BasicCegarLoop]: trace histogram [31, 30, 1, 1] [2018-12-18 17:54:56,956 INFO L423 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:54:56,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:54:56,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1889766628, now seen corresponding path program 30 times [2018-12-18 17:54:56,956 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:54:56,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:54:56,957 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:54:56,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:54:56,957 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:54:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:54:58,681 INFO L273 TraceCheckUtils]: 0: Hoare triple {12582#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {12584#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 0)))} is VALID [2018-12-18 17:54:58,682 INFO L273 TraceCheckUtils]: 1: Hoare triple {12584#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {12585#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 4)))} is VALID [2018-12-18 17:54:58,683 INFO L273 TraceCheckUtils]: 2: Hoare triple {12585#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 4)))} assume i <= n * 4; {12585#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 4)))} is VALID [2018-12-18 17:54:58,684 INFO L273 TraceCheckUtils]: 3: Hoare triple {12585#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {12586#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 8)))} is VALID [2018-12-18 17:54:58,685 INFO L273 TraceCheckUtils]: 4: Hoare triple {12586#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 8)))} assume i <= n * 4; {12586#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 8)))} is VALID [2018-12-18 17:54:58,686 INFO L273 TraceCheckUtils]: 5: Hoare triple {12586#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 8)))} assume a[i] != 23;i := i + 4; {12587#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 12)))} is VALID [2018-12-18 17:54:58,687 INFO L273 TraceCheckUtils]: 6: Hoare triple {12587#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 12)))} assume i <= n * 4; {12587#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 12)))} is VALID [2018-12-18 17:54:58,688 INFO L273 TraceCheckUtils]: 7: Hoare triple {12587#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {12588#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 16)))} is VALID [2018-12-18 17:54:58,689 INFO L273 TraceCheckUtils]: 8: Hoare triple {12588#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 16)))} assume i <= n * 4; {12588#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 16)))} is VALID [2018-12-18 17:54:58,690 INFO L273 TraceCheckUtils]: 9: Hoare triple {12588#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {12589#(and (or (<= main_n 30) (<= main_i 20)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,691 INFO L273 TraceCheckUtils]: 10: Hoare triple {12589#(and (or (<= main_n 30) (<= main_i 20)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12589#(and (or (<= main_n 30) (<= main_i 20)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,692 INFO L273 TraceCheckUtils]: 11: Hoare triple {12589#(and (or (<= main_n 30) (<= main_i 20)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12590#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 24)))} is VALID [2018-12-18 17:54:58,693 INFO L273 TraceCheckUtils]: 12: Hoare triple {12590#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 24)))} assume i <= n * 4; {12590#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 24)))} is VALID [2018-12-18 17:54:58,694 INFO L273 TraceCheckUtils]: 13: Hoare triple {12590#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {12591#(and (or (<= main_n 30) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,695 INFO L273 TraceCheckUtils]: 14: Hoare triple {12591#(and (or (<= main_n 30) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12591#(and (or (<= main_n 30) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,696 INFO L273 TraceCheckUtils]: 15: Hoare triple {12591#(and (or (<= main_n 30) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12592#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 32) (<= main_n 30)))} is VALID [2018-12-18 17:54:58,697 INFO L273 TraceCheckUtils]: 16: Hoare triple {12592#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 32) (<= main_n 30)))} assume i <= n * 4; {12592#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 32) (<= main_n 30)))} is VALID [2018-12-18 17:54:58,698 INFO L273 TraceCheckUtils]: 17: Hoare triple {12592#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 32) (<= main_n 30)))} assume a[i] != 23;i := i + 4; {12593#(and (or (<= main_i 36) (<= main_n 30)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,698 INFO L273 TraceCheckUtils]: 18: Hoare triple {12593#(and (or (<= main_i 36) (<= main_n 30)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 30 main_n)))} assume i <= n * 4; {12593#(and (or (<= main_i 36) (<= main_n 30)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,700 INFO L273 TraceCheckUtils]: 19: Hoare triple {12593#(and (or (<= main_i 36) (<= main_n 30)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12594#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 40)))} is VALID [2018-12-18 17:54:58,700 INFO L273 TraceCheckUtils]: 20: Hoare triple {12594#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 40)))} assume i <= n * 4; {12594#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 40)))} is VALID [2018-12-18 17:54:58,701 INFO L273 TraceCheckUtils]: 21: Hoare triple {12594#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 40)))} assume a[i] != 23;i := i + 4; {12595#(and (or (< 30 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 44)))} is VALID [2018-12-18 17:54:58,702 INFO L273 TraceCheckUtils]: 22: Hoare triple {12595#(and (or (< 30 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 44)))} assume i <= n * 4; {12595#(and (or (< 30 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 44)))} is VALID [2018-12-18 17:54:58,703 INFO L273 TraceCheckUtils]: 23: Hoare triple {12595#(and (or (< 30 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {12596#(and (or (<= main_n 30) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,704 INFO L273 TraceCheckUtils]: 24: Hoare triple {12596#(and (or (<= main_n 30) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12596#(and (or (<= main_n 30) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,705 INFO L273 TraceCheckUtils]: 25: Hoare triple {12596#(and (or (<= main_n 30) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12597#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 52) (<= main_n 30)))} is VALID [2018-12-18 17:54:58,706 INFO L273 TraceCheckUtils]: 26: Hoare triple {12597#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 52) (<= main_n 30)))} assume i <= n * 4; {12597#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 52) (<= main_n 30)))} is VALID [2018-12-18 17:54:58,707 INFO L273 TraceCheckUtils]: 27: Hoare triple {12597#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 52) (<= main_n 30)))} assume a[i] != 23;i := i + 4; {12598#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 56)))} is VALID [2018-12-18 17:54:58,708 INFO L273 TraceCheckUtils]: 28: Hoare triple {12598#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 56)))} assume i <= n * 4; {12598#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 56)))} is VALID [2018-12-18 17:54:58,709 INFO L273 TraceCheckUtils]: 29: Hoare triple {12598#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 56)))} assume a[i] != 23;i := i + 4; {12599#(and (or (< 30 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 60)))} is VALID [2018-12-18 17:54:58,710 INFO L273 TraceCheckUtils]: 30: Hoare triple {12599#(and (or (< 30 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 60)))} assume i <= n * 4; {12599#(and (or (< 30 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 60)))} is VALID [2018-12-18 17:54:58,711 INFO L273 TraceCheckUtils]: 31: Hoare triple {12599#(and (or (< 30 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 30) (<= main_i 60)))} assume a[i] != 23;i := i + 4; {12600#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 64)))} is VALID [2018-12-18 17:54:58,712 INFO L273 TraceCheckUtils]: 32: Hoare triple {12600#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 64)))} assume i <= n * 4; {12600#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 64)))} is VALID [2018-12-18 17:54:58,713 INFO L273 TraceCheckUtils]: 33: Hoare triple {12600#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 64)))} assume a[i] != 23;i := i + 4; {12601#(and (or (<= main_n 30) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,713 INFO L273 TraceCheckUtils]: 34: Hoare triple {12601#(and (or (<= main_n 30) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12601#(and (or (<= main_n 30) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,714 INFO L273 TraceCheckUtils]: 35: Hoare triple {12601#(and (or (<= main_n 30) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12602#(and (or (<= main_n 30) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,715 INFO L273 TraceCheckUtils]: 36: Hoare triple {12602#(and (or (<= main_n 30) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12602#(and (or (<= main_n 30) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,716 INFO L273 TraceCheckUtils]: 37: Hoare triple {12602#(and (or (<= main_n 30) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12603#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 76) (<= main_n 30)))} is VALID [2018-12-18 17:54:58,717 INFO L273 TraceCheckUtils]: 38: Hoare triple {12603#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 76) (<= main_n 30)))} assume i <= n * 4; {12603#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 76) (<= main_n 30)))} is VALID [2018-12-18 17:54:58,718 INFO L273 TraceCheckUtils]: 39: Hoare triple {12603#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 76) (<= main_n 30)))} assume a[i] != 23;i := i + 4; {12604#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 80)))} is VALID [2018-12-18 17:54:58,719 INFO L273 TraceCheckUtils]: 40: Hoare triple {12604#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 80)))} assume i <= n * 4; {12604#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 80)))} is VALID [2018-12-18 17:54:58,720 INFO L273 TraceCheckUtils]: 41: Hoare triple {12604#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {12605#(and (or (<= main_n 30) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,721 INFO L273 TraceCheckUtils]: 42: Hoare triple {12605#(and (or (<= main_n 30) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 30 main_n)))} assume i <= n * 4; {12605#(and (or (<= main_n 30) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,722 INFO L273 TraceCheckUtils]: 43: Hoare triple {12605#(and (or (<= main_n 30) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12606#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 88) (<= main_n 30)))} is VALID [2018-12-18 17:54:58,722 INFO L273 TraceCheckUtils]: 44: Hoare triple {12606#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 88) (<= main_n 30)))} assume i <= n * 4; {12606#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 88) (<= main_n 30)))} is VALID [2018-12-18 17:54:58,723 INFO L273 TraceCheckUtils]: 45: Hoare triple {12606#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_i 88) (<= main_n 30)))} assume a[i] != 23;i := i + 4; {12607#(and (or (< 30 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 30)))} is VALID [2018-12-18 17:54:58,724 INFO L273 TraceCheckUtils]: 46: Hoare triple {12607#(and (or (< 30 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 30)))} assume i <= n * 4; {12607#(and (or (< 30 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 30)))} is VALID [2018-12-18 17:54:58,725 INFO L273 TraceCheckUtils]: 47: Hoare triple {12607#(and (or (< 30 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 30)))} assume a[i] != 23;i := i + 4; {12608#(and (or (<= main_i 96) (<= main_n 30)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,726 INFO L273 TraceCheckUtils]: 48: Hoare triple {12608#(and (or (<= main_i 96) (<= main_n 30)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12608#(and (or (<= main_i 96) (<= main_n 30)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,727 INFO L273 TraceCheckUtils]: 49: Hoare triple {12608#(and (or (<= main_i 96) (<= main_n 30)) (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12609#(and (or (<= main_i 100) (<= main_n 30)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,728 INFO L273 TraceCheckUtils]: 50: Hoare triple {12609#(and (or (<= main_i 100) (<= main_n 30)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12609#(and (or (<= main_i 100) (<= main_n 30)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,729 INFO L273 TraceCheckUtils]: 51: Hoare triple {12609#(and (or (<= main_i 100) (<= main_n 30)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12610#(and (or (<= main_i 104) (<= main_n 30)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,730 INFO L273 TraceCheckUtils]: 52: Hoare triple {12610#(and (or (<= main_i 104) (<= main_n 30)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12610#(and (or (<= main_i 104) (<= main_n 30)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,731 INFO L273 TraceCheckUtils]: 53: Hoare triple {12610#(and (or (<= main_i 104) (<= main_n 30)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12611#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 108)))} is VALID [2018-12-18 17:54:58,731 INFO L273 TraceCheckUtils]: 54: Hoare triple {12611#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 108)))} assume i <= n * 4; {12611#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 108)))} is VALID [2018-12-18 17:54:58,733 INFO L273 TraceCheckUtils]: 55: Hoare triple {12611#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)) (or (<= main_n 30) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {12612#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 112)))} is VALID [2018-12-18 17:54:58,733 INFO L273 TraceCheckUtils]: 56: Hoare triple {12612#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 112)))} assume i <= n * 4; {12612#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 112)))} is VALID [2018-12-18 17:54:58,734 INFO L273 TraceCheckUtils]: 57: Hoare triple {12612#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 30 main_n)) (or (<= main_n 30) (<= main_i 112)))} assume a[i] != 23;i := i + 4; {12613#(and (or (<= main_n 30) (<= main_i 116)) (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,735 INFO L273 TraceCheckUtils]: 58: Hoare triple {12613#(and (or (<= main_n 30) (<= main_i 116)) (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume i <= n * 4; {12613#(and (or (<= main_n 30) (<= main_i 116)) (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,736 INFO L273 TraceCheckUtils]: 59: Hoare triple {12613#(and (or (<= main_n 30) (<= main_i 116)) (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12614#(and (or (<= main_n 30) (<= main_i 120)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,738 INFO L273 TraceCheckUtils]: 60: Hoare triple {12614#(and (or (<= main_n 30) (<= main_i 120)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 30 main_n)))} assume i <= n * 4; {12615#(and (<= main_i 120) (or (and (= (* 4 main_n) main_i) (= 23 (select main_a main_i))) (< 30 main_n)))} is VALID [2018-12-18 17:54:58,738 INFO L273 TraceCheckUtils]: 61: Hoare triple {12615#(and (<= main_i 120) (or (and (= (* 4 main_n) main_i) (= 23 (select main_a main_i))) (< 30 main_n)))} assume a[i] != 23;i := i + 4; {12616#(and (<= main_i 124) (< 30 main_n))} is VALID [2018-12-18 17:54:58,739 INFO L273 TraceCheckUtils]: 62: Hoare triple {12616#(and (<= main_i 124) (< 30 main_n))} assume !(i <= n * 4); {12583#false} is VALID [2018-12-18 17:54:58,758 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:54:58,758 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:54:58,758 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:54:58,758 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:54:58,758 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:54:58,758 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:54:58,758 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:54:58,769 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-18 17:54:58,769 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-18 17:54:58,788 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-18 17:54:58,789 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:54:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:54:58,800 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:54:58,808 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:54:58,810 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:54:58,818 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:54:58,818 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:54:58,821 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:54:58,821 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_34]. (and (= (store v_main_a_34 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:54:58,821 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:55:00,604 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:55:00,606 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:55:00,612 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:55:00,613 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:55:00,615 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:55:00,616 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 120 .cse0) (not (= (select main_a 120) 23)) (<= main_i 124) (= 23 (select main_a .cse0)))) [2018-12-18 17:55:00,616 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 120 .cse0) (not (= 120 .cse0)) (<= main_i 124))) [2018-12-18 17:55:00,658 INFO L273 TraceCheckUtils]: 0: Hoare triple {12582#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {12620#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,658 INFO L273 TraceCheckUtils]: 1: Hoare triple {12620#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12624#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:55:00,659 INFO L273 TraceCheckUtils]: 2: Hoare triple {12624#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {12624#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:55:00,659 INFO L273 TraceCheckUtils]: 3: Hoare triple {12624#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {12631#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,660 INFO L273 TraceCheckUtils]: 4: Hoare triple {12631#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12631#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,660 INFO L273 TraceCheckUtils]: 5: Hoare triple {12631#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12638#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:55:00,661 INFO L273 TraceCheckUtils]: 6: Hoare triple {12638#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {12638#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:55:00,661 INFO L273 TraceCheckUtils]: 7: Hoare triple {12638#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {12645#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,662 INFO L273 TraceCheckUtils]: 8: Hoare triple {12645#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12645#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,663 INFO L273 TraceCheckUtils]: 9: Hoare triple {12645#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12652#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,663 INFO L273 TraceCheckUtils]: 10: Hoare triple {12652#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12652#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,664 INFO L273 TraceCheckUtils]: 11: Hoare triple {12652#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12659#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,665 INFO L273 TraceCheckUtils]: 12: Hoare triple {12659#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12659#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,665 INFO L273 TraceCheckUtils]: 13: Hoare triple {12659#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12666#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,666 INFO L273 TraceCheckUtils]: 14: Hoare triple {12666#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12666#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,667 INFO L273 TraceCheckUtils]: 15: Hoare triple {12666#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12673#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,667 INFO L273 TraceCheckUtils]: 16: Hoare triple {12673#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12673#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,668 INFO L273 TraceCheckUtils]: 17: Hoare triple {12673#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12680#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,669 INFO L273 TraceCheckUtils]: 18: Hoare triple {12680#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12680#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,670 INFO L273 TraceCheckUtils]: 19: Hoare triple {12680#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12687#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,670 INFO L273 TraceCheckUtils]: 20: Hoare triple {12687#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12687#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,671 INFO L273 TraceCheckUtils]: 21: Hoare triple {12687#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12694#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,672 INFO L273 TraceCheckUtils]: 22: Hoare triple {12694#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12694#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,672 INFO L273 TraceCheckUtils]: 23: Hoare triple {12694#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12701#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,673 INFO L273 TraceCheckUtils]: 24: Hoare triple {12701#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12701#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,674 INFO L273 TraceCheckUtils]: 25: Hoare triple {12701#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12708#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,674 INFO L273 TraceCheckUtils]: 26: Hoare triple {12708#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12708#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,675 INFO L273 TraceCheckUtils]: 27: Hoare triple {12708#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12715#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,676 INFO L273 TraceCheckUtils]: 28: Hoare triple {12715#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12715#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,676 INFO L273 TraceCheckUtils]: 29: Hoare triple {12715#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12722#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,677 INFO L273 TraceCheckUtils]: 30: Hoare triple {12722#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12722#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,678 INFO L273 TraceCheckUtils]: 31: Hoare triple {12722#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12729#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,678 INFO L273 TraceCheckUtils]: 32: Hoare triple {12729#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12729#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,679 INFO L273 TraceCheckUtils]: 33: Hoare triple {12729#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12736#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,680 INFO L273 TraceCheckUtils]: 34: Hoare triple {12736#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12736#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,680 INFO L273 TraceCheckUtils]: 35: Hoare triple {12736#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12743#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,681 INFO L273 TraceCheckUtils]: 36: Hoare triple {12743#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12743#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,682 INFO L273 TraceCheckUtils]: 37: Hoare triple {12743#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12750#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,682 INFO L273 TraceCheckUtils]: 38: Hoare triple {12750#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12750#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,683 INFO L273 TraceCheckUtils]: 39: Hoare triple {12750#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12757#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:55:00,684 INFO L273 TraceCheckUtils]: 40: Hoare triple {12757#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {12757#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:55:00,684 INFO L273 TraceCheckUtils]: 41: Hoare triple {12757#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {12764#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,685 INFO L273 TraceCheckUtils]: 42: Hoare triple {12764#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12764#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,686 INFO L273 TraceCheckUtils]: 43: Hoare triple {12764#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12771#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,687 INFO L273 TraceCheckUtils]: 44: Hoare triple {12771#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12771#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,687 INFO L273 TraceCheckUtils]: 45: Hoare triple {12771#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12778#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,688 INFO L273 TraceCheckUtils]: 46: Hoare triple {12778#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12778#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,689 INFO L273 TraceCheckUtils]: 47: Hoare triple {12778#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12785#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,689 INFO L273 TraceCheckUtils]: 48: Hoare triple {12785#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12785#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,690 INFO L273 TraceCheckUtils]: 49: Hoare triple {12785#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12792#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,691 INFO L273 TraceCheckUtils]: 50: Hoare triple {12792#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12792#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,691 INFO L273 TraceCheckUtils]: 51: Hoare triple {12792#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12799#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,692 INFO L273 TraceCheckUtils]: 52: Hoare triple {12799#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12799#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,693 INFO L273 TraceCheckUtils]: 53: Hoare triple {12799#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12806#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,693 INFO L273 TraceCheckUtils]: 54: Hoare triple {12806#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12806#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,694 INFO L273 TraceCheckUtils]: 55: Hoare triple {12806#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12813#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,695 INFO L273 TraceCheckUtils]: 56: Hoare triple {12813#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12813#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,696 INFO L273 TraceCheckUtils]: 57: Hoare triple {12813#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12820#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,696 INFO L273 TraceCheckUtils]: 58: Hoare triple {12820#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12820#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,697 INFO L273 TraceCheckUtils]: 59: Hoare triple {12820#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12827#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,698 INFO L273 TraceCheckUtils]: 60: Hoare triple {12827#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {12831#(and (<= main_i (* 4 main_n)) (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:00,698 INFO L273 TraceCheckUtils]: 61: Hoare triple {12831#(and (<= main_i (* 4 main_n)) (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {12616#(and (<= main_i 124) (< 30 main_n))} is VALID [2018-12-18 17:55:00,699 INFO L273 TraceCheckUtils]: 62: Hoare triple {12616#(and (<= main_i 124) (< 30 main_n))} assume !(i <= n * 4); {12583#false} is VALID [2018-12-18 17:55:00,709 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:55:00,709 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:55:03,713 INFO L273 TraceCheckUtils]: 62: Hoare triple {12838#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {12583#false} is VALID [2018-12-18 17:55:03,714 INFO L273 TraceCheckUtils]: 61: Hoare triple {12842#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {12838#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:55:03,715 INFO L273 TraceCheckUtils]: 60: Hoare triple {12846#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {12842#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:55:03,716 INFO L273 TraceCheckUtils]: 59: Hoare triple {12850#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {12846#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:55:03,716 INFO L273 TraceCheckUtils]: 58: Hoare triple {12850#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {12850#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:55:03,717 INFO L273 TraceCheckUtils]: 57: Hoare triple {12857#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {12850#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:55:03,718 INFO L273 TraceCheckUtils]: 56: Hoare triple {12857#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {12857#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:55:03,719 INFO L273 TraceCheckUtils]: 55: Hoare triple {12864#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {12857#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:55:03,720 INFO L273 TraceCheckUtils]: 54: Hoare triple {12864#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {12864#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:55:03,721 INFO L273 TraceCheckUtils]: 53: Hoare triple {12871#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {12864#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:55:03,721 INFO L273 TraceCheckUtils]: 52: Hoare triple {12871#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {12871#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:55:03,722 INFO L273 TraceCheckUtils]: 51: Hoare triple {12878#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12871#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:55:03,723 INFO L273 TraceCheckUtils]: 50: Hoare triple {12878#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {12878#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,724 INFO L273 TraceCheckUtils]: 49: Hoare triple {12885#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {12878#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,724 INFO L273 TraceCheckUtils]: 48: Hoare triple {12885#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {12885#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:55:03,725 INFO L273 TraceCheckUtils]: 47: Hoare triple {12892#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12885#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:55:03,726 INFO L273 TraceCheckUtils]: 46: Hoare triple {12892#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {12892#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,727 INFO L273 TraceCheckUtils]: 45: Hoare triple {12899#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12892#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,728 INFO L273 TraceCheckUtils]: 44: Hoare triple {12899#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {12899#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,729 INFO L273 TraceCheckUtils]: 43: Hoare triple {12906#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12899#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,729 INFO L273 TraceCheckUtils]: 42: Hoare triple {12906#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {12906#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,730 INFO L273 TraceCheckUtils]: 41: Hoare triple {12913#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {12906#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,731 INFO L273 TraceCheckUtils]: 40: Hoare triple {12913#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {12913#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:55:03,732 INFO L273 TraceCheckUtils]: 39: Hoare triple {12920#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12913#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:55:03,732 INFO L273 TraceCheckUtils]: 38: Hoare triple {12920#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {12920#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,733 INFO L273 TraceCheckUtils]: 37: Hoare triple {12927#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12920#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,734 INFO L273 TraceCheckUtils]: 36: Hoare triple {12927#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {12927#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,735 INFO L273 TraceCheckUtils]: 35: Hoare triple {12934#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {12927#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,736 INFO L273 TraceCheckUtils]: 34: Hoare triple {12934#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {12934#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:55:03,737 INFO L273 TraceCheckUtils]: 33: Hoare triple {12941#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12934#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:55:03,737 INFO L273 TraceCheckUtils]: 32: Hoare triple {12941#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {12941#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,738 INFO L273 TraceCheckUtils]: 31: Hoare triple {12948#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {12941#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,739 INFO L273 TraceCheckUtils]: 30: Hoare triple {12948#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {12948#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:55:03,740 INFO L273 TraceCheckUtils]: 29: Hoare triple {12955#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {12948#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:55:03,740 INFO L273 TraceCheckUtils]: 28: Hoare triple {12955#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {12955#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:55:03,741 INFO L273 TraceCheckUtils]: 27: Hoare triple {12962#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {12955#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:55:03,742 INFO L273 TraceCheckUtils]: 26: Hoare triple {12962#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {12962#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:55:03,743 INFO L273 TraceCheckUtils]: 25: Hoare triple {12969#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {12962#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:55:03,743 INFO L273 TraceCheckUtils]: 24: Hoare triple {12969#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {12969#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:55:03,745 INFO L273 TraceCheckUtils]: 23: Hoare triple {12976#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {12969#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:55:03,745 INFO L273 TraceCheckUtils]: 22: Hoare triple {12976#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {12976#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:55:03,746 INFO L273 TraceCheckUtils]: 21: Hoare triple {12983#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {12976#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:55:03,747 INFO L273 TraceCheckUtils]: 20: Hoare triple {12983#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {12983#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:55:03,748 INFO L273 TraceCheckUtils]: 19: Hoare triple {12990#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12983#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:55:03,748 INFO L273 TraceCheckUtils]: 18: Hoare triple {12990#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {12990#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,749 INFO L273 TraceCheckUtils]: 17: Hoare triple {12997#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12990#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,750 INFO L273 TraceCheckUtils]: 16: Hoare triple {12997#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {12997#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,751 INFO L273 TraceCheckUtils]: 15: Hoare triple {13004#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {12997#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,751 INFO L273 TraceCheckUtils]: 14: Hoare triple {13004#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {13004#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,752 INFO L273 TraceCheckUtils]: 13: Hoare triple {13011#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {13004#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,753 INFO L273 TraceCheckUtils]: 12: Hoare triple {13011#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {13011#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:55:03,754 INFO L273 TraceCheckUtils]: 11: Hoare triple {13018#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13011#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:55:03,755 INFO L273 TraceCheckUtils]: 10: Hoare triple {13018#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {13018#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,756 INFO L273 TraceCheckUtils]: 9: Hoare triple {13025#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {13018#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,756 INFO L273 TraceCheckUtils]: 8: Hoare triple {13025#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {13025#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:55:03,757 INFO L273 TraceCheckUtils]: 7: Hoare triple {13032#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {13025#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:55:03,758 INFO L273 TraceCheckUtils]: 6: Hoare triple {13032#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {13032#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:55:03,759 INFO L273 TraceCheckUtils]: 5: Hoare triple {13039#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {13032#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:55:03,759 INFO L273 TraceCheckUtils]: 4: Hoare triple {13039#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {13039#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:55:03,760 INFO L273 TraceCheckUtils]: 3: Hoare triple {13046#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13039#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:55:03,761 INFO L273 TraceCheckUtils]: 2: Hoare triple {13046#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {13046#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,762 INFO L273 TraceCheckUtils]: 1: Hoare triple {13053#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13046#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,763 INFO L273 TraceCheckUtils]: 0: Hoare triple {12582#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {13053#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:55:03,779 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:55:03,798 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:55:03,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 98 [2018-12-18 17:55:03,798 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:55:03,798 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 63 [2018-12-18 17:55:03,798 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:55:03,799 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 67 states. [2018-12-18 17:55:03,968 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 125 edges. 125 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:55:03,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 67 states [2018-12-18 17:55:03,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2018-12-18 17:55:03,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1262, Invalid=8638, Unknown=0, NotChecked=0, Total=9900 [2018-12-18 17:55:03,969 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand 67 states. [2018-12-18 17:55:10,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:55:10,124 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2018-12-18 17:55:10,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-12-18 17:55:10,124 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 63 [2018-12-18 17:55:10,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:55:10,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-12-18 17:55:10,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 68 transitions. [2018-12-18 17:55:10,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-12-18 17:55:10,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 68 transitions. [2018-12-18 17:55:10,126 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 35 states and 68 transitions. [2018-12-18 17:55:10,196 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 68 edges. 68 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:55:10,197 INFO L225 Difference]: With dead ends: 68 [2018-12-18 17:55:10,197 INFO L226 Difference]: Without dead ends: 67 [2018-12-18 17:55:10,198 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2240 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=1262, Invalid=8638, Unknown=0, NotChecked=0, Total=9900 [2018-12-18 17:55:10,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-12-18 17:55:10,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2018-12-18 17:55:10,261 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:55:10,261 INFO L82 GeneralOperation]: Start isEquivalent. First operand 67 states. Second operand 66 states. [2018-12-18 17:55:10,262 INFO L74 IsIncluded]: Start isIncluded. First operand 67 states. Second operand 66 states. [2018-12-18 17:55:10,262 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 66 states. [2018-12-18 17:55:10,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:55:10,263 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2018-12-18 17:55:10,263 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2018-12-18 17:55:10,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:55:10,264 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:55:10,264 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 67 states. [2018-12-18 17:55:10,264 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 67 states. [2018-12-18 17:55:10,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:55:10,265 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2018-12-18 17:55:10,265 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2018-12-18 17:55:10,266 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:55:10,266 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:55:10,266 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:55:10,266 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:55:10,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-12-18 17:55:10,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 66 transitions. [2018-12-18 17:55:10,267 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 66 transitions. Word has length 63 [2018-12-18 17:55:10,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:55:10,267 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 66 transitions. [2018-12-18 17:55:10,267 INFO L481 AbstractCegarLoop]: Interpolant automaton has 67 states. [2018-12-18 17:55:10,267 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 66 transitions. [2018-12-18 17:55:10,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-12-18 17:55:10,268 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:55:10,268 INFO L402 BasicCegarLoop]: trace histogram [32, 31, 1, 1] [2018-12-18 17:55:10,268 INFO L423 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:55:10,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:55:10,269 INFO L82 PathProgramCache]: Analyzing trace with hash 705437790, now seen corresponding path program 31 times [2018-12-18 17:55:10,269 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:55:10,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:55:10,270 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:55:10,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:55:10,270 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:55:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:55:11,969 INFO L273 TraceCheckUtils]: 0: Hoare triple {13389#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {13391#(and (or (<= main_n 31) (<= main_i 0)) (or (<= 0 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,970 INFO L273 TraceCheckUtils]: 1: Hoare triple {13391#(and (or (<= main_n 31) (<= main_i 0)) (or (<= 0 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13392#(and (or (<= main_n 31) (<= main_i 4)) (or (< 31 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,971 INFO L273 TraceCheckUtils]: 2: Hoare triple {13392#(and (or (<= main_n 31) (<= main_i 4)) (or (< 31 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13392#(and (or (<= main_n 31) (<= main_i 4)) (or (< 31 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,972 INFO L273 TraceCheckUtils]: 3: Hoare triple {13392#(and (or (<= main_n 31) (<= main_i 4)) (or (< 31 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13393#(and (or (< 31 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 31)))} is VALID [2018-12-18 17:55:11,973 INFO L273 TraceCheckUtils]: 4: Hoare triple {13393#(and (or (< 31 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 31)))} assume i <= n * 4; {13393#(and (or (< 31 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 31)))} is VALID [2018-12-18 17:55:11,974 INFO L273 TraceCheckUtils]: 5: Hoare triple {13393#(and (or (< 31 main_n) (<= 8 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 31)))} assume a[i] != 23;i := i + 4; {13394#(and (or (< 31 main_n) (<= 12 main_i)) (or (<= main_n 31) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,975 INFO L273 TraceCheckUtils]: 6: Hoare triple {13394#(and (or (< 31 main_n) (<= 12 main_i)) (or (<= main_n 31) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13394#(and (or (< 31 main_n) (<= 12 main_i)) (or (<= main_n 31) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,976 INFO L273 TraceCheckUtils]: 7: Hoare triple {13394#(and (or (< 31 main_n) (<= 12 main_i)) (or (<= main_n 31) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13395#(and (or (< 31 main_n) (<= 16 main_i)) (or (<= main_n 31) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,977 INFO L273 TraceCheckUtils]: 8: Hoare triple {13395#(and (or (< 31 main_n) (<= 16 main_i)) (or (<= main_n 31) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13395#(and (or (< 31 main_n) (<= 16 main_i)) (or (<= main_n 31) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,978 INFO L273 TraceCheckUtils]: 9: Hoare triple {13395#(and (or (< 31 main_n) (<= 16 main_i)) (or (<= main_n 31) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13396#(and (or (<= main_n 31) (<= main_i 20)) (or (< 31 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,978 INFO L273 TraceCheckUtils]: 10: Hoare triple {13396#(and (or (<= main_n 31) (<= main_i 20)) (or (< 31 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13396#(and (or (<= main_n 31) (<= main_i 20)) (or (< 31 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,979 INFO L273 TraceCheckUtils]: 11: Hoare triple {13396#(and (or (<= main_n 31) (<= main_i 20)) (or (< 31 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13397#(and (or (<= main_n 31) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 24 main_i)))} is VALID [2018-12-18 17:55:11,980 INFO L273 TraceCheckUtils]: 12: Hoare triple {13397#(and (or (<= main_n 31) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 24 main_i)))} assume i <= n * 4; {13397#(and (or (<= main_n 31) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 24 main_i)))} is VALID [2018-12-18 17:55:11,981 INFO L273 TraceCheckUtils]: 13: Hoare triple {13397#(and (or (<= main_n 31) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 24 main_i)))} assume a[i] != 23;i := i + 4; {13398#(and (or (<= main_n 31) (<= main_i 28)) (or (<= 28 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,982 INFO L273 TraceCheckUtils]: 14: Hoare triple {13398#(and (or (<= main_n 31) (<= main_i 28)) (or (<= 28 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13398#(and (or (<= main_n 31) (<= main_i 28)) (or (<= 28 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,983 INFO L273 TraceCheckUtils]: 15: Hoare triple {13398#(and (or (<= main_n 31) (<= main_i 28)) (or (<= 28 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13399#(and (or (<= main_i 32) (<= main_n 31)) (or (<= 32 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,984 INFO L273 TraceCheckUtils]: 16: Hoare triple {13399#(and (or (<= main_i 32) (<= main_n 31)) (or (<= 32 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13399#(and (or (<= main_i 32) (<= main_n 31)) (or (<= 32 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,985 INFO L273 TraceCheckUtils]: 17: Hoare triple {13399#(and (or (<= main_i 32) (<= main_n 31)) (or (<= 32 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13400#(and (or (< 31 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 31)))} is VALID [2018-12-18 17:55:11,985 INFO L273 TraceCheckUtils]: 18: Hoare triple {13400#(and (or (< 31 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 31)))} assume i <= n * 4; {13400#(and (or (< 31 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 31)))} is VALID [2018-12-18 17:55:11,987 INFO L273 TraceCheckUtils]: 19: Hoare triple {13400#(and (or (< 31 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 36) (<= main_n 31)))} assume a[i] != 23;i := i + 4; {13401#(and (or (<= main_i 40) (<= main_n 31)) (or (<= 40 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,987 INFO L273 TraceCheckUtils]: 20: Hoare triple {13401#(and (or (<= main_i 40) (<= main_n 31)) (or (<= 40 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13401#(and (or (<= main_i 40) (<= main_n 31)) (or (<= 40 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,988 INFO L273 TraceCheckUtils]: 21: Hoare triple {13401#(and (or (<= main_i 40) (<= main_n 31)) (or (<= 40 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13402#(and (or (<= main_n 31) (<= main_i 44)) (or (<= 44 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,989 INFO L273 TraceCheckUtils]: 22: Hoare triple {13402#(and (or (<= main_n 31) (<= main_i 44)) (or (<= 44 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13402#(and (or (<= main_n 31) (<= main_i 44)) (or (<= 44 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,990 INFO L273 TraceCheckUtils]: 23: Hoare triple {13402#(and (or (<= main_n 31) (<= main_i 44)) (or (<= 44 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13403#(and (or (<= 48 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,991 INFO L273 TraceCheckUtils]: 24: Hoare triple {13403#(and (or (<= 48 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13403#(and (or (<= 48 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,992 INFO L273 TraceCheckUtils]: 25: Hoare triple {13403#(and (or (<= 48 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13404#(and (or (<= main_i 52) (<= main_n 31)) (or (< 31 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,993 INFO L273 TraceCheckUtils]: 26: Hoare triple {13404#(and (or (<= main_i 52) (<= main_n 31)) (or (< 31 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13404#(and (or (<= main_i 52) (<= main_n 31)) (or (< 31 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,994 INFO L273 TraceCheckUtils]: 27: Hoare triple {13404#(and (or (<= main_i 52) (<= main_n 31)) (or (< 31 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13405#(and (or (< 31 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 31) (<= main_i 56)))} is VALID [2018-12-18 17:55:11,995 INFO L273 TraceCheckUtils]: 28: Hoare triple {13405#(and (or (< 31 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 31) (<= main_i 56)))} assume i <= n * 4; {13405#(and (or (< 31 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 31) (<= main_i 56)))} is VALID [2018-12-18 17:55:11,996 INFO L273 TraceCheckUtils]: 29: Hoare triple {13405#(and (or (< 31 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 31) (<= main_i 56)))} assume a[i] != 23;i := i + 4; {13406#(and (or (< 31 main_n) (<= 60 main_i)) (or (<= main_n 31) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,996 INFO L273 TraceCheckUtils]: 30: Hoare triple {13406#(and (or (< 31 main_n) (<= 60 main_i)) (or (<= main_n 31) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13406#(and (or (< 31 main_n) (<= 60 main_i)) (or (<= main_n 31) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,997 INFO L273 TraceCheckUtils]: 31: Hoare triple {13406#(and (or (< 31 main_n) (<= 60 main_i)) (or (<= main_n 31) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13407#(and (or (<= main_i 64) (<= main_n 31)) (or (<= 64 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,998 INFO L273 TraceCheckUtils]: 32: Hoare triple {13407#(and (or (<= main_i 64) (<= main_n 31)) (or (<= 64 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13407#(and (or (<= main_i 64) (<= main_n 31)) (or (<= 64 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:11,999 INFO L273 TraceCheckUtils]: 33: Hoare triple {13407#(and (or (<= main_i 64) (<= main_n 31)) (or (<= 64 main_i) (< 31 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13408#(and (or (<= main_n 31) (<= main_i 68)) (or (< 31 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,000 INFO L273 TraceCheckUtils]: 34: Hoare triple {13408#(and (or (<= main_n 31) (<= main_i 68)) (or (< 31 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13408#(and (or (<= main_n 31) (<= main_i 68)) (or (< 31 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,001 INFO L273 TraceCheckUtils]: 35: Hoare triple {13408#(and (or (<= main_n 31) (<= main_i 68)) (or (< 31 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13409#(and (or (<= 72 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,002 INFO L273 TraceCheckUtils]: 36: Hoare triple {13409#(and (or (<= 72 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13409#(and (or (<= 72 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,003 INFO L273 TraceCheckUtils]: 37: Hoare triple {13409#(and (or (<= 72 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13410#(and (or (<= 76 main_i) (< 31 main_n)) (or (<= main_i 76) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,004 INFO L273 TraceCheckUtils]: 38: Hoare triple {13410#(and (or (<= 76 main_i) (< 31 main_n)) (or (<= main_i 76) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13410#(and (or (<= 76 main_i) (< 31 main_n)) (or (<= main_i 76) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,005 INFO L273 TraceCheckUtils]: 39: Hoare triple {13410#(and (or (<= 76 main_i) (< 31 main_n)) (or (<= main_i 76) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13411#(and (or (< 31 main_n) (<= 80 main_i)) (or (<= main_n 31) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,005 INFO L273 TraceCheckUtils]: 40: Hoare triple {13411#(and (or (< 31 main_n) (<= 80 main_i)) (or (<= main_n 31) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13411#(and (or (< 31 main_n) (<= 80 main_i)) (or (<= main_n 31) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,007 INFO L273 TraceCheckUtils]: 41: Hoare triple {13411#(and (or (< 31 main_n) (<= 80 main_i)) (or (<= main_n 31) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13412#(and (or (<= main_i 84) (<= main_n 31)) (or (< 31 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,007 INFO L273 TraceCheckUtils]: 42: Hoare triple {13412#(and (or (<= main_i 84) (<= main_n 31)) (or (< 31 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13412#(and (or (<= main_i 84) (<= main_n 31)) (or (< 31 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,008 INFO L273 TraceCheckUtils]: 43: Hoare triple {13412#(and (or (<= main_i 84) (<= main_n 31)) (or (< 31 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13413#(and (or (< 31 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 31)))} is VALID [2018-12-18 17:55:12,009 INFO L273 TraceCheckUtils]: 44: Hoare triple {13413#(and (or (< 31 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 31)))} assume i <= n * 4; {13413#(and (or (< 31 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 31)))} is VALID [2018-12-18 17:55:12,010 INFO L273 TraceCheckUtils]: 45: Hoare triple {13413#(and (or (< 31 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 31)))} assume a[i] != 23;i := i + 4; {13414#(and (or (<= main_i 92) (<= main_n 31)) (or (< 31 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,011 INFO L273 TraceCheckUtils]: 46: Hoare triple {13414#(and (or (<= main_i 92) (<= main_n 31)) (or (< 31 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13414#(and (or (<= main_i 92) (<= main_n 31)) (or (< 31 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,012 INFO L273 TraceCheckUtils]: 47: Hoare triple {13414#(and (or (<= main_i 92) (<= main_n 31)) (or (< 31 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13415#(and (or (<= main_i 96) (<= main_n 31)) (or (< 31 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,013 INFO L273 TraceCheckUtils]: 48: Hoare triple {13415#(and (or (<= main_i 96) (<= main_n 31)) (or (< 31 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13415#(and (or (<= main_i 96) (<= main_n 31)) (or (< 31 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,014 INFO L273 TraceCheckUtils]: 49: Hoare triple {13415#(and (or (<= main_i 96) (<= main_n 31)) (or (< 31 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13416#(and (or (<= main_i 100) (<= main_n 31)) (or (< 31 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,015 INFO L273 TraceCheckUtils]: 50: Hoare triple {13416#(and (or (<= main_i 100) (<= main_n 31)) (or (< 31 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13416#(and (or (<= main_i 100) (<= main_n 31)) (or (< 31 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,016 INFO L273 TraceCheckUtils]: 51: Hoare triple {13416#(and (or (<= main_i 100) (<= main_n 31)) (or (< 31 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13417#(and (or (< 31 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,017 INFO L273 TraceCheckUtils]: 52: Hoare triple {13417#(and (or (< 31 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13417#(and (or (< 31 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,018 INFO L273 TraceCheckUtils]: 53: Hoare triple {13417#(and (or (< 31 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13418#(and (or (<= main_n 31) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 108 main_i)))} is VALID [2018-12-18 17:55:12,018 INFO L273 TraceCheckUtils]: 54: Hoare triple {13418#(and (or (<= main_n 31) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 108 main_i)))} assume i <= n * 4; {13418#(and (or (<= main_n 31) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 108 main_i)))} is VALID [2018-12-18 17:55:12,019 INFO L273 TraceCheckUtils]: 55: Hoare triple {13418#(and (or (<= main_n 31) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))) (or (< 31 main_n) (<= 108 main_i)))} assume a[i] != 23;i := i + 4; {13419#(and (or (< 31 main_n) (<= 112 main_i)) (or (<= main_n 31) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,020 INFO L273 TraceCheckUtils]: 56: Hoare triple {13419#(and (or (< 31 main_n) (<= 112 main_i)) (or (<= main_n 31) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13419#(and (or (< 31 main_n) (<= 112 main_i)) (or (<= main_n 31) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,021 INFO L273 TraceCheckUtils]: 57: Hoare triple {13419#(and (or (< 31 main_n) (<= 112 main_i)) (or (<= main_n 31) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13420#(and (or (<= 116 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,022 INFO L273 TraceCheckUtils]: 58: Hoare triple {13420#(and (or (<= 116 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13420#(and (or (<= 116 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,023 INFO L273 TraceCheckUtils]: 59: Hoare triple {13420#(and (or (<= 116 main_i) (< 31 main_n)) (or (<= main_n 31) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13421#(and (or (<= 120 main_i) (< 31 main_n)) (or (<= main_i 120) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,024 INFO L273 TraceCheckUtils]: 60: Hoare triple {13421#(and (or (<= 120 main_i) (< 31 main_n)) (or (<= main_i 120) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13421#(and (or (<= 120 main_i) (< 31 main_n)) (or (<= main_i 120) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:12,025 INFO L273 TraceCheckUtils]: 61: Hoare triple {13421#(and (or (<= 120 main_i) (< 31 main_n)) (or (<= main_i 120) (<= main_n 31)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13422#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 31) (<= main_i 124)) (or (<= (* 4 main_n) main_i) (< 31 main_n)))))} is VALID [2018-12-18 17:55:12,026 INFO L273 TraceCheckUtils]: 62: Hoare triple {13422#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 31) (<= main_i 124)) (or (<= (* 4 main_n) main_i) (< 31 main_n)))))} assume i <= n * 4; {13423#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 31 main_n) (<= main_i 124))))} is VALID [2018-12-18 17:55:12,027 INFO L273 TraceCheckUtils]: 63: Hoare triple {13423#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (< 31 main_n) (<= main_i 124))))} assume a[i] != 23;i := i + 4; {13424#(and (< 31 main_n) (<= main_i 128))} is VALID [2018-12-18 17:55:12,028 INFO L273 TraceCheckUtils]: 64: Hoare triple {13424#(and (< 31 main_n) (<= main_i 128))} assume !(i <= n * 4); {13390#false} is VALID [2018-12-18 17:55:12,047 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:55:12,047 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:55:12,047 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:55:12,047 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:55:12,048 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:55:12,048 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:55:12,048 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:55:12,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:55:12,056 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-18 17:55:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:55:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:55:12,086 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:55:12,096 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:55:12,098 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:55:12,107 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:55:12,107 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:55:12,109 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:55:12,109 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_35]. (and (= (store v_main_a_35 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:55:12,109 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:55:13,978 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:55:13,980 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:55:13,986 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:55:13,986 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:55:13,989 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:55:13,989 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 124 .cse0) (not (= (select main_a 124) 23)) (<= main_i 128) (= 23 (select main_a .cse0)))) [2018-12-18 17:55:13,989 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 124 .cse0) (<= main_i 128) (not (= 124 .cse0)))) [2018-12-18 17:55:14,031 INFO L273 TraceCheckUtils]: 0: Hoare triple {13389#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {13428#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,031 INFO L273 TraceCheckUtils]: 1: Hoare triple {13428#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13432#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:55:14,032 INFO L273 TraceCheckUtils]: 2: Hoare triple {13432#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {13432#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:55:14,032 INFO L273 TraceCheckUtils]: 3: Hoare triple {13432#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {13439#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,033 INFO L273 TraceCheckUtils]: 4: Hoare triple {13439#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13439#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,033 INFO L273 TraceCheckUtils]: 5: Hoare triple {13439#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13446#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:55:14,034 INFO L273 TraceCheckUtils]: 6: Hoare triple {13446#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {13446#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:55:14,035 INFO L273 TraceCheckUtils]: 7: Hoare triple {13446#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {13453#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,035 INFO L273 TraceCheckUtils]: 8: Hoare triple {13453#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13453#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,036 INFO L273 TraceCheckUtils]: 9: Hoare triple {13453#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13460#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,037 INFO L273 TraceCheckUtils]: 10: Hoare triple {13460#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13460#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,038 INFO L273 TraceCheckUtils]: 11: Hoare triple {13460#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13467#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,038 INFO L273 TraceCheckUtils]: 12: Hoare triple {13467#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13467#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,039 INFO L273 TraceCheckUtils]: 13: Hoare triple {13467#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13474#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,040 INFO L273 TraceCheckUtils]: 14: Hoare triple {13474#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13474#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,040 INFO L273 TraceCheckUtils]: 15: Hoare triple {13474#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13481#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,041 INFO L273 TraceCheckUtils]: 16: Hoare triple {13481#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13481#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,042 INFO L273 TraceCheckUtils]: 17: Hoare triple {13481#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13488#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,042 INFO L273 TraceCheckUtils]: 18: Hoare triple {13488#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13488#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,043 INFO L273 TraceCheckUtils]: 19: Hoare triple {13488#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13495#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,044 INFO L273 TraceCheckUtils]: 20: Hoare triple {13495#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13495#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,045 INFO L273 TraceCheckUtils]: 21: Hoare triple {13495#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13502#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,045 INFO L273 TraceCheckUtils]: 22: Hoare triple {13502#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13502#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,046 INFO L273 TraceCheckUtils]: 23: Hoare triple {13502#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13509#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,047 INFO L273 TraceCheckUtils]: 24: Hoare triple {13509#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13509#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,047 INFO L273 TraceCheckUtils]: 25: Hoare triple {13509#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13516#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,048 INFO L273 TraceCheckUtils]: 26: Hoare triple {13516#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13516#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,049 INFO L273 TraceCheckUtils]: 27: Hoare triple {13516#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13523#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,050 INFO L273 TraceCheckUtils]: 28: Hoare triple {13523#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13523#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,050 INFO L273 TraceCheckUtils]: 29: Hoare triple {13523#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13530#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,051 INFO L273 TraceCheckUtils]: 30: Hoare triple {13530#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13530#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,052 INFO L273 TraceCheckUtils]: 31: Hoare triple {13530#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13537#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,052 INFO L273 TraceCheckUtils]: 32: Hoare triple {13537#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13537#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,053 INFO L273 TraceCheckUtils]: 33: Hoare triple {13537#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13544#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,054 INFO L273 TraceCheckUtils]: 34: Hoare triple {13544#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13544#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,054 INFO L273 TraceCheckUtils]: 35: Hoare triple {13544#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13551#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,055 INFO L273 TraceCheckUtils]: 36: Hoare triple {13551#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13551#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,056 INFO L273 TraceCheckUtils]: 37: Hoare triple {13551#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13558#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,057 INFO L273 TraceCheckUtils]: 38: Hoare triple {13558#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13558#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,057 INFO L273 TraceCheckUtils]: 39: Hoare triple {13558#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13565#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:55:14,058 INFO L273 TraceCheckUtils]: 40: Hoare triple {13565#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {13565#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:55:14,059 INFO L273 TraceCheckUtils]: 41: Hoare triple {13565#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {13572#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,060 INFO L273 TraceCheckUtils]: 42: Hoare triple {13572#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13572#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,060 INFO L273 TraceCheckUtils]: 43: Hoare triple {13572#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13579#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,061 INFO L273 TraceCheckUtils]: 44: Hoare triple {13579#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13579#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,062 INFO L273 TraceCheckUtils]: 45: Hoare triple {13579#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13586#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,062 INFO L273 TraceCheckUtils]: 46: Hoare triple {13586#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13586#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,063 INFO L273 TraceCheckUtils]: 47: Hoare triple {13586#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13593#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,064 INFO L273 TraceCheckUtils]: 48: Hoare triple {13593#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13593#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,065 INFO L273 TraceCheckUtils]: 49: Hoare triple {13593#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13600#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,065 INFO L273 TraceCheckUtils]: 50: Hoare triple {13600#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13600#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,066 INFO L273 TraceCheckUtils]: 51: Hoare triple {13600#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13607#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,067 INFO L273 TraceCheckUtils]: 52: Hoare triple {13607#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13607#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,067 INFO L273 TraceCheckUtils]: 53: Hoare triple {13607#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13614#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,068 INFO L273 TraceCheckUtils]: 54: Hoare triple {13614#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13614#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,069 INFO L273 TraceCheckUtils]: 55: Hoare triple {13614#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13621#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,069 INFO L273 TraceCheckUtils]: 56: Hoare triple {13621#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13621#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,070 INFO L273 TraceCheckUtils]: 57: Hoare triple {13621#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13628#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,071 INFO L273 TraceCheckUtils]: 58: Hoare triple {13628#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13628#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,072 INFO L273 TraceCheckUtils]: 59: Hoare triple {13628#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13635#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,072 INFO L273 TraceCheckUtils]: 60: Hoare triple {13635#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13635#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,073 INFO L273 TraceCheckUtils]: 61: Hoare triple {13635#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13642#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,074 INFO L273 TraceCheckUtils]: 62: Hoare triple {13642#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {13646#(and (= main_i 124) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:14,075 INFO L273 TraceCheckUtils]: 63: Hoare triple {13646#(and (= main_i 124) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {13424#(and (< 31 main_n) (<= main_i 128))} is VALID [2018-12-18 17:55:14,075 INFO L273 TraceCheckUtils]: 64: Hoare triple {13424#(and (< 31 main_n) (<= main_i 128))} assume !(i <= n * 4); {13390#false} is VALID [2018-12-18 17:55:14,085 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:55:14,085 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:55:17,203 INFO L273 TraceCheckUtils]: 64: Hoare triple {13653#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {13390#false} is VALID [2018-12-18 17:55:17,205 INFO L273 TraceCheckUtils]: 63: Hoare triple {13657#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {13653#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:55:17,205 INFO L273 TraceCheckUtils]: 62: Hoare triple {13661#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {13657#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:55:17,206 INFO L273 TraceCheckUtils]: 61: Hoare triple {13665#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {13661#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:55:17,207 INFO L273 TraceCheckUtils]: 60: Hoare triple {13665#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {13665#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:55:17,208 INFO L273 TraceCheckUtils]: 59: Hoare triple {13672#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {13665#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:55:17,208 INFO L273 TraceCheckUtils]: 58: Hoare triple {13672#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {13672#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:55:17,211 INFO L273 TraceCheckUtils]: 57: Hoare triple {13679#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {13672#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:55:17,212 INFO L273 TraceCheckUtils]: 56: Hoare triple {13679#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {13679#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:55:17,212 INFO L273 TraceCheckUtils]: 55: Hoare triple {13686#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {13679#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:55:17,213 INFO L273 TraceCheckUtils]: 54: Hoare triple {13686#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {13686#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:55:17,213 INFO L273 TraceCheckUtils]: 53: Hoare triple {13693#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13686#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:55:17,214 INFO L273 TraceCheckUtils]: 52: Hoare triple {13693#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {13693#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,214 INFO L273 TraceCheckUtils]: 51: Hoare triple {13700#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {13693#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,215 INFO L273 TraceCheckUtils]: 50: Hoare triple {13700#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {13700#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:55:17,216 INFO L273 TraceCheckUtils]: 49: Hoare triple {13707#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13700#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:55:17,216 INFO L273 TraceCheckUtils]: 48: Hoare triple {13707#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {13707#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,217 INFO L273 TraceCheckUtils]: 47: Hoare triple {13714#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13707#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,218 INFO L273 TraceCheckUtils]: 46: Hoare triple {13714#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {13714#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,219 INFO L273 TraceCheckUtils]: 45: Hoare triple {13721#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13714#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,220 INFO L273 TraceCheckUtils]: 44: Hoare triple {13721#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {13721#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,221 INFO L273 TraceCheckUtils]: 43: Hoare triple {13728#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {13721#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,221 INFO L273 TraceCheckUtils]: 42: Hoare triple {13728#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {13728#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:55:17,222 INFO L273 TraceCheckUtils]: 41: Hoare triple {13735#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13728#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:55:17,223 INFO L273 TraceCheckUtils]: 40: Hoare triple {13735#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {13735#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,224 INFO L273 TraceCheckUtils]: 39: Hoare triple {13742#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13735#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,224 INFO L273 TraceCheckUtils]: 38: Hoare triple {13742#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {13742#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,225 INFO L273 TraceCheckUtils]: 37: Hoare triple {13749#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {13742#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,226 INFO L273 TraceCheckUtils]: 36: Hoare triple {13749#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {13749#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:55:17,227 INFO L273 TraceCheckUtils]: 35: Hoare triple {13756#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13749#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:55:17,228 INFO L273 TraceCheckUtils]: 34: Hoare triple {13756#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {13756#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,229 INFO L273 TraceCheckUtils]: 33: Hoare triple {13763#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {13756#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,229 INFO L273 TraceCheckUtils]: 32: Hoare triple {13763#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {13763#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:55:17,230 INFO L273 TraceCheckUtils]: 31: Hoare triple {13770#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {13763#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:55:17,231 INFO L273 TraceCheckUtils]: 30: Hoare triple {13770#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {13770#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:55:17,232 INFO L273 TraceCheckUtils]: 29: Hoare triple {13777#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {13770#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:55:17,232 INFO L273 TraceCheckUtils]: 28: Hoare triple {13777#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {13777#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:55:17,233 INFO L273 TraceCheckUtils]: 27: Hoare triple {13784#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {13777#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:55:17,234 INFO L273 TraceCheckUtils]: 26: Hoare triple {13784#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {13784#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:55:17,235 INFO L273 TraceCheckUtils]: 25: Hoare triple {13791#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {13784#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:55:17,235 INFO L273 TraceCheckUtils]: 24: Hoare triple {13791#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {13791#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:55:17,236 INFO L273 TraceCheckUtils]: 23: Hoare triple {13798#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {13791#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:55:17,237 INFO L273 TraceCheckUtils]: 22: Hoare triple {13798#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {13798#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:55:17,238 INFO L273 TraceCheckUtils]: 21: Hoare triple {13805#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13798#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:55:17,239 INFO L273 TraceCheckUtils]: 20: Hoare triple {13805#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {13805#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,240 INFO L273 TraceCheckUtils]: 19: Hoare triple {13812#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13805#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,240 INFO L273 TraceCheckUtils]: 18: Hoare triple {13812#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {13812#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,241 INFO L273 TraceCheckUtils]: 17: Hoare triple {13819#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13812#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,242 INFO L273 TraceCheckUtils]: 16: Hoare triple {13819#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {13819#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,243 INFO L273 TraceCheckUtils]: 15: Hoare triple {13826#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {13819#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,243 INFO L273 TraceCheckUtils]: 14: Hoare triple {13826#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {13826#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:55:17,244 INFO L273 TraceCheckUtils]: 13: Hoare triple {13833#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13826#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:55:17,245 INFO L273 TraceCheckUtils]: 12: Hoare triple {13833#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {13833#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,246 INFO L273 TraceCheckUtils]: 11: Hoare triple {13840#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {13833#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,246 INFO L273 TraceCheckUtils]: 10: Hoare triple {13840#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {13840#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:55:17,248 INFO L273 TraceCheckUtils]: 9: Hoare triple {13847#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {13840#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:55:17,248 INFO L273 TraceCheckUtils]: 8: Hoare triple {13847#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {13847#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:55:17,249 INFO L273 TraceCheckUtils]: 7: Hoare triple {13854#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {13847#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:55:17,250 INFO L273 TraceCheckUtils]: 6: Hoare triple {13854#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {13854#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:55:17,251 INFO L273 TraceCheckUtils]: 5: Hoare triple {13861#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13854#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:55:17,251 INFO L273 TraceCheckUtils]: 4: Hoare triple {13861#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {13861#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,252 INFO L273 TraceCheckUtils]: 3: Hoare triple {13868#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {13861#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,253 INFO L273 TraceCheckUtils]: 2: Hoare triple {13868#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {13868#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,254 INFO L273 TraceCheckUtils]: 1: Hoare triple {13875#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {13868#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:55:17,255 INFO L273 TraceCheckUtils]: 0: Hoare triple {13389#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {13875#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:55:17,271 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:55:17,290 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:55:17,290 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 101 [2018-12-18 17:55:17,290 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:55:17,291 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 65 [2018-12-18 17:55:17,291 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:55:17,291 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 69 states. [2018-12-18 17:55:17,442 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 129 edges. 129 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:55:17,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 69 states [2018-12-18 17:55:17,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2018-12-18 17:55:17,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1334, Invalid=9172, Unknown=0, NotChecked=0, Total=10506 [2018-12-18 17:55:17,444 INFO L87 Difference]: Start difference. First operand 66 states and 66 transitions. Second operand 69 states. [2018-12-18 17:55:25,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:55:25,472 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2018-12-18 17:55:25,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-12-18 17:55:25,472 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 65 [2018-12-18 17:55:25,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:55:25,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-12-18 17:55:25,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 70 transitions. [2018-12-18 17:55:25,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-12-18 17:55:25,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 70 transitions. [2018-12-18 17:55:25,474 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 36 states and 70 transitions. [2018-12-18 17:55:25,562 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 70 edges. 70 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:55:25,563 INFO L225 Difference]: With dead ends: 70 [2018-12-18 17:55:25,564 INFO L226 Difference]: Without dead ends: 69 [2018-12-18 17:55:25,564 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2376 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=1334, Invalid=9172, Unknown=0, NotChecked=0, Total=10506 [2018-12-18 17:55:25,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-12-18 17:55:25,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2018-12-18 17:55:25,628 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:55:25,628 INFO L82 GeneralOperation]: Start isEquivalent. First operand 69 states. Second operand 68 states. [2018-12-18 17:55:25,628 INFO L74 IsIncluded]: Start isIncluded. First operand 69 states. Second operand 68 states. [2018-12-18 17:55:25,628 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 68 states. [2018-12-18 17:55:25,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:55:25,630 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2018-12-18 17:55:25,630 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2018-12-18 17:55:25,630 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:55:25,630 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:55:25,630 INFO L74 IsIncluded]: Start isIncluded. First operand 68 states. Second operand 69 states. [2018-12-18 17:55:25,631 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 69 states. [2018-12-18 17:55:25,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:55:25,631 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2018-12-18 17:55:25,631 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2018-12-18 17:55:25,632 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:55:25,632 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:55:25,632 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:55:25,632 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:55:25,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-12-18 17:55:25,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2018-12-18 17:55:25,633 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 65 [2018-12-18 17:55:25,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:55:25,633 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2018-12-18 17:55:25,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has 69 states. [2018-12-18 17:55:25,633 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2018-12-18 17:55:25,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-12-18 17:55:25,634 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:55:25,634 INFO L402 BasicCegarLoop]: trace histogram [33, 32, 1, 1] [2018-12-18 17:55:25,634 INFO L423 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:55:25,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:55:25,634 INFO L82 PathProgramCache]: Analyzing trace with hash -679115488, now seen corresponding path program 32 times [2018-12-18 17:55:25,634 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:55:25,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:55:25,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:55:25,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:55:25,635 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:55:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:55:27,346 INFO L273 TraceCheckUtils]: 0: Hoare triple {14221#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {14223#(and (or (< 32 main_n) (<= 0 main_i)) (or (<= main_n 32) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,347 INFO L273 TraceCheckUtils]: 1: Hoare triple {14223#(and (or (< 32 main_n) (<= 0 main_i)) (or (<= main_n 32) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14224#(and (or (<= main_n 32) (<= main_i 4)) (or (< 32 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,348 INFO L273 TraceCheckUtils]: 2: Hoare triple {14224#(and (or (<= main_n 32) (<= main_i 4)) (or (< 32 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14224#(and (or (<= main_n 32) (<= main_i 4)) (or (< 32 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,349 INFO L273 TraceCheckUtils]: 3: Hoare triple {14224#(and (or (<= main_n 32) (<= main_i 4)) (or (< 32 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14225#(and (or (< 32 main_n) (<= 8 main_i)) (or (<= main_n 32) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,350 INFO L273 TraceCheckUtils]: 4: Hoare triple {14225#(and (or (< 32 main_n) (<= 8 main_i)) (or (<= main_n 32) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14225#(and (or (< 32 main_n) (<= 8 main_i)) (or (<= main_n 32) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,351 INFO L273 TraceCheckUtils]: 5: Hoare triple {14225#(and (or (< 32 main_n) (<= 8 main_i)) (or (<= main_n 32) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14226#(and (or (<= main_n 32) (<= main_i 12)) (or (< 32 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,352 INFO L273 TraceCheckUtils]: 6: Hoare triple {14226#(and (or (<= main_n 32) (<= main_i 12)) (or (< 32 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14226#(and (or (<= main_n 32) (<= main_i 12)) (or (< 32 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,353 INFO L273 TraceCheckUtils]: 7: Hoare triple {14226#(and (or (<= main_n 32) (<= main_i 12)) (or (< 32 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14227#(and (or (<= main_n 32) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 16 main_i)))} is VALID [2018-12-18 17:55:27,353 INFO L273 TraceCheckUtils]: 8: Hoare triple {14227#(and (or (<= main_n 32) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 16 main_i)))} assume i <= n * 4; {14227#(and (or (<= main_n 32) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 16 main_i)))} is VALID [2018-12-18 17:55:27,354 INFO L273 TraceCheckUtils]: 9: Hoare triple {14227#(and (or (<= main_n 32) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 16 main_i)))} assume a[i] != 23;i := i + 4; {14228#(and (or (< 32 main_n) (<= 20 main_i)) (or (<= main_n 32) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,355 INFO L273 TraceCheckUtils]: 10: Hoare triple {14228#(and (or (< 32 main_n) (<= 20 main_i)) (or (<= main_n 32) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14228#(and (or (< 32 main_n) (<= 20 main_i)) (or (<= main_n 32) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,356 INFO L273 TraceCheckUtils]: 11: Hoare triple {14228#(and (or (< 32 main_n) (<= 20 main_i)) (or (<= main_n 32) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14229#(and (or (< 32 main_n) (<= 24 main_i)) (or (<= main_n 32) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,373 INFO L273 TraceCheckUtils]: 12: Hoare triple {14229#(and (or (< 32 main_n) (<= 24 main_i)) (or (<= main_n 32) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14229#(and (or (< 32 main_n) (<= 24 main_i)) (or (<= main_n 32) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,387 INFO L273 TraceCheckUtils]: 13: Hoare triple {14229#(and (or (< 32 main_n) (<= 24 main_i)) (or (<= main_n 32) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14230#(and (or (<= main_n 32) (<= main_i 28)) (or (< 32 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,402 INFO L273 TraceCheckUtils]: 14: Hoare triple {14230#(and (or (<= main_n 32) (<= main_i 28)) (or (< 32 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14230#(and (or (<= main_n 32) (<= main_i 28)) (or (< 32 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,411 INFO L273 TraceCheckUtils]: 15: Hoare triple {14230#(and (or (<= main_n 32) (<= main_i 28)) (or (< 32 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14231#(and (or (< 32 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,424 INFO L273 TraceCheckUtils]: 16: Hoare triple {14231#(and (or (< 32 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14231#(and (or (< 32 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,425 INFO L273 TraceCheckUtils]: 17: Hoare triple {14231#(and (or (< 32 main_n) (<= 32 main_i)) (or (<= main_i 32) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14232#(and (or (< 32 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,425 INFO L273 TraceCheckUtils]: 18: Hoare triple {14232#(and (or (< 32 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14232#(and (or (< 32 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,443 INFO L273 TraceCheckUtils]: 19: Hoare triple {14232#(and (or (< 32 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14233#(and (or (< 32 main_n) (<= 40 main_i)) (or (<= main_n 32) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,456 INFO L273 TraceCheckUtils]: 20: Hoare triple {14233#(and (or (< 32 main_n) (<= 40 main_i)) (or (<= main_n 32) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14233#(and (or (< 32 main_n) (<= 40 main_i)) (or (<= main_n 32) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,465 INFO L273 TraceCheckUtils]: 21: Hoare triple {14233#(and (or (< 32 main_n) (<= 40 main_i)) (or (<= main_n 32) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14234#(and (or (<= main_n 32) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 44 main_i)))} is VALID [2018-12-18 17:55:27,478 INFO L273 TraceCheckUtils]: 22: Hoare triple {14234#(and (or (<= main_n 32) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 44 main_i)))} assume i <= n * 4; {14234#(and (or (<= main_n 32) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 44 main_i)))} is VALID [2018-12-18 17:55:27,493 INFO L273 TraceCheckUtils]: 23: Hoare triple {14234#(and (or (<= main_n 32) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 44 main_i)))} assume a[i] != 23;i := i + 4; {14235#(and (or (<= main_n 32) (<= main_i 48)) (or (< 32 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,502 INFO L273 TraceCheckUtils]: 24: Hoare triple {14235#(and (or (<= main_n 32) (<= main_i 48)) (or (< 32 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14235#(and (or (<= main_n 32) (<= main_i 48)) (or (< 32 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,514 INFO L273 TraceCheckUtils]: 25: Hoare triple {14235#(and (or (<= main_n 32) (<= main_i 48)) (or (< 32 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14236#(and (or (<= main_n 32) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 52 main_i)))} is VALID [2018-12-18 17:55:27,527 INFO L273 TraceCheckUtils]: 26: Hoare triple {14236#(and (or (<= main_n 32) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 52 main_i)))} assume i <= n * 4; {14236#(and (or (<= main_n 32) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 52 main_i)))} is VALID [2018-12-18 17:55:27,540 INFO L273 TraceCheckUtils]: 27: Hoare triple {14236#(and (or (<= main_n 32) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 52 main_i)))} assume a[i] != 23;i := i + 4; {14237#(and (or (<= main_n 32) (<= main_i 56)) (or (< 32 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,553 INFO L273 TraceCheckUtils]: 28: Hoare triple {14237#(and (or (<= main_n 32) (<= main_i 56)) (or (< 32 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14237#(and (or (<= main_n 32) (<= main_i 56)) (or (< 32 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,561 INFO L273 TraceCheckUtils]: 29: Hoare triple {14237#(and (or (<= main_n 32) (<= main_i 56)) (or (< 32 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14238#(and (or (<= main_n 32) (<= main_i 60)) (or (< 32 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,574 INFO L273 TraceCheckUtils]: 30: Hoare triple {14238#(and (or (<= main_n 32) (<= main_i 60)) (or (< 32 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14238#(and (or (<= main_n 32) (<= main_i 60)) (or (< 32 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,587 INFO L273 TraceCheckUtils]: 31: Hoare triple {14238#(and (or (<= main_n 32) (<= main_i 60)) (or (< 32 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14239#(and (or (< 32 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 64)))} is VALID [2018-12-18 17:55:27,600 INFO L273 TraceCheckUtils]: 32: Hoare triple {14239#(and (or (< 32 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 64)))} assume i <= n * 4; {14239#(and (or (< 32 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 64)))} is VALID [2018-12-18 17:55:27,609 INFO L273 TraceCheckUtils]: 33: Hoare triple {14239#(and (or (< 32 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 64)))} assume a[i] != 23;i := i + 4; {14240#(and (or (<= main_n 32) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 68 main_i)))} is VALID [2018-12-18 17:55:27,619 INFO L273 TraceCheckUtils]: 34: Hoare triple {14240#(and (or (<= main_n 32) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 68 main_i)))} assume i <= n * 4; {14240#(and (or (<= main_n 32) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 68 main_i)))} is VALID [2018-12-18 17:55:27,632 INFO L273 TraceCheckUtils]: 35: Hoare triple {14240#(and (or (<= main_n 32) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 68 main_i)))} assume a[i] != 23;i := i + 4; {14241#(and (or (<= main_n 32) (<= main_i 72)) (or (< 32 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,646 INFO L273 TraceCheckUtils]: 36: Hoare triple {14241#(and (or (<= main_n 32) (<= main_i 72)) (or (< 32 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14241#(and (or (<= main_n 32) (<= main_i 72)) (or (< 32 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,655 INFO L273 TraceCheckUtils]: 37: Hoare triple {14241#(and (or (<= main_n 32) (<= main_i 72)) (or (< 32 main_n) (<= 72 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14242#(and (or (<= main_n 32) (<= main_i 76)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 32 main_n)))} is VALID [2018-12-18 17:55:27,656 INFO L273 TraceCheckUtils]: 38: Hoare triple {14242#(and (or (<= main_n 32) (<= main_i 76)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 32 main_n)))} assume i <= n * 4; {14242#(and (or (<= main_n 32) (<= main_i 76)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 32 main_n)))} is VALID [2018-12-18 17:55:27,656 INFO L273 TraceCheckUtils]: 39: Hoare triple {14242#(and (or (<= main_n 32) (<= main_i 76)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 32 main_n)))} assume a[i] != 23;i := i + 4; {14243#(and (or (<= main_n 32) (<= main_i 80)) (or (< 32 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,657 INFO L273 TraceCheckUtils]: 40: Hoare triple {14243#(and (or (<= main_n 32) (<= main_i 80)) (or (< 32 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14243#(and (or (<= main_n 32) (<= main_i 80)) (or (< 32 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,658 INFO L273 TraceCheckUtils]: 41: Hoare triple {14243#(and (or (<= main_n 32) (<= main_i 80)) (or (< 32 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14244#(and (or (<= main_n 32) (<= main_i 84)) (or (< 32 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,658 INFO L273 TraceCheckUtils]: 42: Hoare triple {14244#(and (or (<= main_n 32) (<= main_i 84)) (or (< 32 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14244#(and (or (<= main_n 32) (<= main_i 84)) (or (< 32 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,659 INFO L273 TraceCheckUtils]: 43: Hoare triple {14244#(and (or (<= main_n 32) (<= main_i 84)) (or (< 32 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14245#(and (or (<= main_n 32) (<= main_i 88)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 88 main_i)))} is VALID [2018-12-18 17:55:27,660 INFO L273 TraceCheckUtils]: 44: Hoare triple {14245#(and (or (<= main_n 32) (<= main_i 88)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 88 main_i)))} assume i <= n * 4; {14245#(and (or (<= main_n 32) (<= main_i 88)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 88 main_i)))} is VALID [2018-12-18 17:55:27,661 INFO L273 TraceCheckUtils]: 45: Hoare triple {14245#(and (or (<= main_n 32) (<= main_i 88)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 88 main_i)))} assume a[i] != 23;i := i + 4; {14246#(and (or (< 32 main_n) (<= 92 main_i)) (or (<= main_n 32) (<= main_i 92)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,661 INFO L273 TraceCheckUtils]: 46: Hoare triple {14246#(and (or (< 32 main_n) (<= 92 main_i)) (or (<= main_n 32) (<= main_i 92)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14246#(and (or (< 32 main_n) (<= 92 main_i)) (or (<= main_n 32) (<= main_i 92)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,662 INFO L273 TraceCheckUtils]: 47: Hoare triple {14246#(and (or (< 32 main_n) (<= 92 main_i)) (or (<= main_n 32) (<= main_i 92)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14247#(and (or (<= main_i 96) (<= main_n 32)) (or (< 32 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,663 INFO L273 TraceCheckUtils]: 48: Hoare triple {14247#(and (or (<= main_i 96) (<= main_n 32)) (or (< 32 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14247#(and (or (<= main_i 96) (<= main_n 32)) (or (< 32 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,664 INFO L273 TraceCheckUtils]: 49: Hoare triple {14247#(and (or (<= main_i 96) (<= main_n 32)) (or (< 32 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14248#(and (or (< 32 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 100)))} is VALID [2018-12-18 17:55:27,665 INFO L273 TraceCheckUtils]: 50: Hoare triple {14248#(and (or (< 32 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 100)))} assume i <= n * 4; {14248#(and (or (< 32 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 100)))} is VALID [2018-12-18 17:55:27,666 INFO L273 TraceCheckUtils]: 51: Hoare triple {14248#(and (or (< 32 main_n) (<= 100 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 100)))} assume a[i] != 23;i := i + 4; {14249#(and (or (<= main_i 104) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 104 main_i)))} is VALID [2018-12-18 17:55:27,667 INFO L273 TraceCheckUtils]: 52: Hoare triple {14249#(and (or (<= main_i 104) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 104 main_i)))} assume i <= n * 4; {14249#(and (or (<= main_i 104) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 104 main_i)))} is VALID [2018-12-18 17:55:27,668 INFO L273 TraceCheckUtils]: 53: Hoare triple {14249#(and (or (<= main_i 104) (<= main_n 32)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 104 main_i)))} assume a[i] != 23;i := i + 4; {14250#(and (or (< 32 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 108)))} is VALID [2018-12-18 17:55:27,668 INFO L273 TraceCheckUtils]: 54: Hoare triple {14250#(and (or (< 32 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 108)))} assume i <= n * 4; {14250#(and (or (< 32 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 108)))} is VALID [2018-12-18 17:55:27,669 INFO L273 TraceCheckUtils]: 55: Hoare triple {14250#(and (or (< 32 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 32) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {14251#(and (or (< 32 main_n) (<= 112 main_i)) (or (<= main_n 32) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,670 INFO L273 TraceCheckUtils]: 56: Hoare triple {14251#(and (or (< 32 main_n) (<= 112 main_i)) (or (<= main_n 32) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14251#(and (or (< 32 main_n) (<= 112 main_i)) (or (<= main_n 32) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,671 INFO L273 TraceCheckUtils]: 57: Hoare triple {14251#(and (or (< 32 main_n) (<= 112 main_i)) (or (<= main_n 32) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14252#(and (or (<= 116 main_i) (< 32 main_n)) (or (<= main_n 32) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,672 INFO L273 TraceCheckUtils]: 58: Hoare triple {14252#(and (or (<= 116 main_i) (< 32 main_n)) (or (<= main_n 32) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14252#(and (or (<= 116 main_i) (< 32 main_n)) (or (<= main_n 32) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,673 INFO L273 TraceCheckUtils]: 59: Hoare triple {14252#(and (or (<= 116 main_i) (< 32 main_n)) (or (<= main_n 32) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14253#(and (or (<= main_n 32) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 120 main_i)))} is VALID [2018-12-18 17:55:27,674 INFO L273 TraceCheckUtils]: 60: Hoare triple {14253#(and (or (<= main_n 32) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 120 main_i)))} assume i <= n * 4; {14253#(and (or (<= main_n 32) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 120 main_i)))} is VALID [2018-12-18 17:55:27,675 INFO L273 TraceCheckUtils]: 61: Hoare triple {14253#(and (or (<= main_n 32) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))) (or (< 32 main_n) (<= 120 main_i)))} assume a[i] != 23;i := i + 4; {14254#(and (or (<= main_n 32) (<= main_i 124)) (or (< 32 main_n) (<= 124 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,676 INFO L273 TraceCheckUtils]: 62: Hoare triple {14254#(and (or (<= main_n 32) (<= main_i 124)) (or (< 32 main_n) (<= 124 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14254#(and (or (<= main_n 32) (<= main_i 124)) (or (< 32 main_n) (<= 124 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:27,677 INFO L273 TraceCheckUtils]: 63: Hoare triple {14254#(and (or (<= main_n 32) (<= main_i 124)) (or (< 32 main_n) (<= 124 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14255#(and (or (= (* 4 main_n) main_i) (and (or (< 32 main_n) (<= (* 4 main_n) main_i)) (or (<= main_n 32) (<= main_i 128)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2018-12-18 17:55:27,678 INFO L273 TraceCheckUtils]: 64: Hoare triple {14255#(and (or (= (* 4 main_n) main_i) (and (or (< 32 main_n) (<= (* 4 main_n) main_i)) (or (<= main_n 32) (<= main_i 128)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {14256#(and (or (= (* 4 main_n) main_i) (and (< 32 main_n) (<= main_i 128))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2018-12-18 17:55:27,679 INFO L273 TraceCheckUtils]: 65: Hoare triple {14256#(and (or (= (* 4 main_n) main_i) (and (< 32 main_n) (<= main_i 128))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume a[i] != 23;i := i + 4; {14257#(and (<= main_i 132) (<= 33 main_n))} is VALID [2018-12-18 17:55:27,679 INFO L273 TraceCheckUtils]: 66: Hoare triple {14257#(and (<= main_i 132) (<= 33 main_n))} assume !(i <= n * 4); {14222#false} is VALID [2018-12-18 17:55:27,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 0 proven. 1056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:55:27,700 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:55:27,700 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:55:27,700 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:55:27,700 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:55:27,700 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:55:27,701 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:55:27,709 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-18 17:55:27,710 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-18 17:55:27,751 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 33 check-sat command(s) [2018-12-18 17:55:27,751 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:55:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:55:27,776 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:55:27,873 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:55:27,880 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:55:27,884 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:55:27,884 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:55:27,886 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:55:27,886 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_36]. (and (= (store v_main_a_36 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:55:27,886 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:55:29,768 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:55:29,772 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:55:29,782 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:55:29,783 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:55:29,785 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:55:29,785 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 132) (not (= (select main_a 128) 23)) (<= 128 .cse0) (= 23 (select main_a .cse0)))) [2018-12-18 17:55:29,786 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 132) (<= 128 .cse0) (not (= 128 .cse0)))) [2018-12-18 17:55:29,826 INFO L273 TraceCheckUtils]: 0: Hoare triple {14221#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {14261#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,827 INFO L273 TraceCheckUtils]: 1: Hoare triple {14261#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:55:29,828 INFO L273 TraceCheckUtils]: 2: Hoare triple {14265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {14265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:55:29,829 INFO L273 TraceCheckUtils]: 3: Hoare triple {14265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {14272#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,829 INFO L273 TraceCheckUtils]: 4: Hoare triple {14272#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14272#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,830 INFO L273 TraceCheckUtils]: 5: Hoare triple {14272#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14279#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:55:29,831 INFO L273 TraceCheckUtils]: 6: Hoare triple {14279#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {14279#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:55:29,831 INFO L273 TraceCheckUtils]: 7: Hoare triple {14279#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {14286#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,832 INFO L273 TraceCheckUtils]: 8: Hoare triple {14286#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14286#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,833 INFO L273 TraceCheckUtils]: 9: Hoare triple {14286#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14293#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,833 INFO L273 TraceCheckUtils]: 10: Hoare triple {14293#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14293#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,834 INFO L273 TraceCheckUtils]: 11: Hoare triple {14293#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14300#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,835 INFO L273 TraceCheckUtils]: 12: Hoare triple {14300#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14300#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,836 INFO L273 TraceCheckUtils]: 13: Hoare triple {14300#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14307#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,836 INFO L273 TraceCheckUtils]: 14: Hoare triple {14307#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14307#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,837 INFO L273 TraceCheckUtils]: 15: Hoare triple {14307#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14314#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,838 INFO L273 TraceCheckUtils]: 16: Hoare triple {14314#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14314#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,838 INFO L273 TraceCheckUtils]: 17: Hoare triple {14314#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14321#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,839 INFO L273 TraceCheckUtils]: 18: Hoare triple {14321#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14321#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,840 INFO L273 TraceCheckUtils]: 19: Hoare triple {14321#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14328#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,840 INFO L273 TraceCheckUtils]: 20: Hoare triple {14328#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14328#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,841 INFO L273 TraceCheckUtils]: 21: Hoare triple {14328#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14335#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,842 INFO L273 TraceCheckUtils]: 22: Hoare triple {14335#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14335#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,842 INFO L273 TraceCheckUtils]: 23: Hoare triple {14335#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14342#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,843 INFO L273 TraceCheckUtils]: 24: Hoare triple {14342#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14342#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,844 INFO L273 TraceCheckUtils]: 25: Hoare triple {14342#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14349#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,845 INFO L273 TraceCheckUtils]: 26: Hoare triple {14349#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14349#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,845 INFO L273 TraceCheckUtils]: 27: Hoare triple {14349#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14356#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,846 INFO L273 TraceCheckUtils]: 28: Hoare triple {14356#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14356#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,847 INFO L273 TraceCheckUtils]: 29: Hoare triple {14356#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14363#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,847 INFO L273 TraceCheckUtils]: 30: Hoare triple {14363#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14363#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,848 INFO L273 TraceCheckUtils]: 31: Hoare triple {14363#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14370#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,849 INFO L273 TraceCheckUtils]: 32: Hoare triple {14370#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14370#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,849 INFO L273 TraceCheckUtils]: 33: Hoare triple {14370#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14377#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,850 INFO L273 TraceCheckUtils]: 34: Hoare triple {14377#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14377#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,851 INFO L273 TraceCheckUtils]: 35: Hoare triple {14377#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14384#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,851 INFO L273 TraceCheckUtils]: 36: Hoare triple {14384#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14384#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,852 INFO L273 TraceCheckUtils]: 37: Hoare triple {14384#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14391#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,853 INFO L273 TraceCheckUtils]: 38: Hoare triple {14391#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14391#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,854 INFO L273 TraceCheckUtils]: 39: Hoare triple {14391#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14398#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:55:29,854 INFO L273 TraceCheckUtils]: 40: Hoare triple {14398#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {14398#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:55:29,855 INFO L273 TraceCheckUtils]: 41: Hoare triple {14398#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {14405#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,856 INFO L273 TraceCheckUtils]: 42: Hoare triple {14405#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14405#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,856 INFO L273 TraceCheckUtils]: 43: Hoare triple {14405#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14412#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,857 INFO L273 TraceCheckUtils]: 44: Hoare triple {14412#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14412#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,858 INFO L273 TraceCheckUtils]: 45: Hoare triple {14412#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14419#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,858 INFO L273 TraceCheckUtils]: 46: Hoare triple {14419#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14419#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,859 INFO L273 TraceCheckUtils]: 47: Hoare triple {14419#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14426#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,861 INFO L273 TraceCheckUtils]: 48: Hoare triple {14426#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14426#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,862 INFO L273 TraceCheckUtils]: 49: Hoare triple {14426#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14433#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,862 INFO L273 TraceCheckUtils]: 50: Hoare triple {14433#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14433#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,863 INFO L273 TraceCheckUtils]: 51: Hoare triple {14433#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14440#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,863 INFO L273 TraceCheckUtils]: 52: Hoare triple {14440#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14440#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,864 INFO L273 TraceCheckUtils]: 53: Hoare triple {14440#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14447#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,864 INFO L273 TraceCheckUtils]: 54: Hoare triple {14447#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14447#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,865 INFO L273 TraceCheckUtils]: 55: Hoare triple {14447#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14454#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,865 INFO L273 TraceCheckUtils]: 56: Hoare triple {14454#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14454#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,865 INFO L273 TraceCheckUtils]: 57: Hoare triple {14454#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14461#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,866 INFO L273 TraceCheckUtils]: 58: Hoare triple {14461#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14461#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,866 INFO L273 TraceCheckUtils]: 59: Hoare triple {14461#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14468#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,867 INFO L273 TraceCheckUtils]: 60: Hoare triple {14468#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14468#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,868 INFO L273 TraceCheckUtils]: 61: Hoare triple {14468#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14475#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,868 INFO L273 TraceCheckUtils]: 62: Hoare triple {14475#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14475#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,869 INFO L273 TraceCheckUtils]: 63: Hoare triple {14475#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14482#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,870 INFO L273 TraceCheckUtils]: 64: Hoare triple {14482#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {14486#(and (<= main_i (* 4 main_n)) (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:29,871 INFO L273 TraceCheckUtils]: 65: Hoare triple {14486#(and (<= main_i (* 4 main_n)) (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {14257#(and (<= main_i 132) (<= 33 main_n))} is VALID [2018-12-18 17:55:29,871 INFO L273 TraceCheckUtils]: 66: Hoare triple {14257#(and (<= main_i 132) (<= 33 main_n))} assume !(i <= n * 4); {14222#false} is VALID [2018-12-18 17:55:29,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 0 proven. 1056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:55:29,884 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:55:33,151 INFO L273 TraceCheckUtils]: 66: Hoare triple {14493#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {14222#false} is VALID [2018-12-18 17:55:33,152 INFO L273 TraceCheckUtils]: 65: Hoare triple {14497#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {14493#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:55:33,153 INFO L273 TraceCheckUtils]: 64: Hoare triple {14501#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {14497#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:55:33,154 INFO L273 TraceCheckUtils]: 63: Hoare triple {14505#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {14501#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:55:33,154 INFO L273 TraceCheckUtils]: 62: Hoare triple {14505#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {14505#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:55:33,155 INFO L273 TraceCheckUtils]: 61: Hoare triple {14512#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {14505#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:55:33,155 INFO L273 TraceCheckUtils]: 60: Hoare triple {14512#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {14512#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:55:33,156 INFO L273 TraceCheckUtils]: 59: Hoare triple {14519#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {14512#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:55:33,157 INFO L273 TraceCheckUtils]: 58: Hoare triple {14519#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {14519#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:55:33,158 INFO L273 TraceCheckUtils]: 57: Hoare triple {14526#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {14519#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:55:33,158 INFO L273 TraceCheckUtils]: 56: Hoare triple {14526#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {14526#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:55:33,159 INFO L273 TraceCheckUtils]: 55: Hoare triple {14533#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14526#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:55:33,160 INFO L273 TraceCheckUtils]: 54: Hoare triple {14533#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {14533#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,161 INFO L273 TraceCheckUtils]: 53: Hoare triple {14540#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {14533#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,161 INFO L273 TraceCheckUtils]: 52: Hoare triple {14540#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {14540#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:55:33,162 INFO L273 TraceCheckUtils]: 51: Hoare triple {14547#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14540#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:55:33,163 INFO L273 TraceCheckUtils]: 50: Hoare triple {14547#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {14547#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,164 INFO L273 TraceCheckUtils]: 49: Hoare triple {14554#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14547#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,165 INFO L273 TraceCheckUtils]: 48: Hoare triple {14554#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {14554#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,166 INFO L273 TraceCheckUtils]: 47: Hoare triple {14561#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14554#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,166 INFO L273 TraceCheckUtils]: 46: Hoare triple {14561#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {14561#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,167 INFO L273 TraceCheckUtils]: 45: Hoare triple {14568#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {14561#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,168 INFO L273 TraceCheckUtils]: 44: Hoare triple {14568#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {14568#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:55:33,169 INFO L273 TraceCheckUtils]: 43: Hoare triple {14575#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14568#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:55:33,169 INFO L273 TraceCheckUtils]: 42: Hoare triple {14575#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {14575#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,170 INFO L273 TraceCheckUtils]: 41: Hoare triple {14582#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14575#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,171 INFO L273 TraceCheckUtils]: 40: Hoare triple {14582#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {14582#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,172 INFO L273 TraceCheckUtils]: 39: Hoare triple {14589#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {14582#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,173 INFO L273 TraceCheckUtils]: 38: Hoare triple {14589#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {14589#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:55:33,174 INFO L273 TraceCheckUtils]: 37: Hoare triple {14596#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14589#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:55:33,174 INFO L273 TraceCheckUtils]: 36: Hoare triple {14596#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {14596#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,175 INFO L273 TraceCheckUtils]: 35: Hoare triple {14603#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {14596#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,176 INFO L273 TraceCheckUtils]: 34: Hoare triple {14603#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {14603#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:55:33,177 INFO L273 TraceCheckUtils]: 33: Hoare triple {14610#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {14603#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:55:33,177 INFO L273 TraceCheckUtils]: 32: Hoare triple {14610#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {14610#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:55:33,178 INFO L273 TraceCheckUtils]: 31: Hoare triple {14617#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {14610#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:55:33,179 INFO L273 TraceCheckUtils]: 30: Hoare triple {14617#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {14617#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:55:33,180 INFO L273 TraceCheckUtils]: 29: Hoare triple {14624#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {14617#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:55:33,180 INFO L273 TraceCheckUtils]: 28: Hoare triple {14624#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {14624#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:55:33,181 INFO L273 TraceCheckUtils]: 27: Hoare triple {14631#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {14624#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:55:33,182 INFO L273 TraceCheckUtils]: 26: Hoare triple {14631#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {14631#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:55:33,183 INFO L273 TraceCheckUtils]: 25: Hoare triple {14638#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {14631#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:55:33,184 INFO L273 TraceCheckUtils]: 24: Hoare triple {14638#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {14638#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:55:33,185 INFO L273 TraceCheckUtils]: 23: Hoare triple {14645#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14638#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:55:33,185 INFO L273 TraceCheckUtils]: 22: Hoare triple {14645#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {14645#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,186 INFO L273 TraceCheckUtils]: 21: Hoare triple {14652#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14645#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,187 INFO L273 TraceCheckUtils]: 20: Hoare triple {14652#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {14652#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,188 INFO L273 TraceCheckUtils]: 19: Hoare triple {14659#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14652#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,188 INFO L273 TraceCheckUtils]: 18: Hoare triple {14659#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {14659#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,189 INFO L273 TraceCheckUtils]: 17: Hoare triple {14666#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {14659#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,190 INFO L273 TraceCheckUtils]: 16: Hoare triple {14666#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {14666#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:55:33,191 INFO L273 TraceCheckUtils]: 15: Hoare triple {14673#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14666#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:55:33,191 INFO L273 TraceCheckUtils]: 14: Hoare triple {14673#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {14673#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,192 INFO L273 TraceCheckUtils]: 13: Hoare triple {14680#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {14673#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,193 INFO L273 TraceCheckUtils]: 12: Hoare triple {14680#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {14680#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:55:33,194 INFO L273 TraceCheckUtils]: 11: Hoare triple {14687#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {14680#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:55:33,195 INFO L273 TraceCheckUtils]: 10: Hoare triple {14687#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {14687#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:55:33,196 INFO L273 TraceCheckUtils]: 9: Hoare triple {14694#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {14687#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:55:33,196 INFO L273 TraceCheckUtils]: 8: Hoare triple {14694#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {14694#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:55:33,197 INFO L273 TraceCheckUtils]: 7: Hoare triple {14701#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14694#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:55:33,198 INFO L273 TraceCheckUtils]: 6: Hoare triple {14701#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {14701#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,199 INFO L273 TraceCheckUtils]: 5: Hoare triple {14708#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14701#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,199 INFO L273 TraceCheckUtils]: 4: Hoare triple {14708#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {14708#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,200 INFO L273 TraceCheckUtils]: 3: Hoare triple {14715#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {14708#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,201 INFO L273 TraceCheckUtils]: 2: Hoare triple {14715#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {14715#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:55:33,202 INFO L273 TraceCheckUtils]: 1: Hoare triple {14722#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {14715#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:55:33,203 INFO L273 TraceCheckUtils]: 0: Hoare triple {14221#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {14722#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:55:33,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 0 proven. 1056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:55:33,239 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:55:33,239 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 104 [2018-12-18 17:55:33,239 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:55:33,240 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 67 [2018-12-18 17:55:33,240 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:55:33,240 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 71 states. [2018-12-18 17:55:33,393 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 133 edges. 133 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:55:33,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 71 states [2018-12-18 17:55:33,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2018-12-18 17:55:33,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1408, Invalid=9722, Unknown=0, NotChecked=0, Total=11130 [2018-12-18 17:55:33,395 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand 71 states. [2018-12-18 17:55:39,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:55:39,475 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2018-12-18 17:55:39,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-12-18 17:55:39,475 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 67 [2018-12-18 17:55:39,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:55:39,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-12-18 17:55:39,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 72 transitions. [2018-12-18 17:55:39,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-12-18 17:55:39,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 72 transitions. [2018-12-18 17:55:39,477 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 37 states and 72 transitions. [2018-12-18 17:55:39,552 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 72 edges. 72 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:55:39,553 INFO L225 Difference]: With dead ends: 72 [2018-12-18 17:55:39,554 INFO L226 Difference]: Without dead ends: 71 [2018-12-18 17:55:39,554 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2516 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=1408, Invalid=9722, Unknown=0, NotChecked=0, Total=11130 [2018-12-18 17:55:39,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-12-18 17:55:39,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2018-12-18 17:55:39,618 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:55:39,618 INFO L82 GeneralOperation]: Start isEquivalent. First operand 71 states. Second operand 70 states. [2018-12-18 17:55:39,618 INFO L74 IsIncluded]: Start isIncluded. First operand 71 states. Second operand 70 states. [2018-12-18 17:55:39,618 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 70 states. [2018-12-18 17:55:39,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:55:39,619 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2018-12-18 17:55:39,620 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2018-12-18 17:55:39,620 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:55:39,620 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:55:39,620 INFO L74 IsIncluded]: Start isIncluded. First operand 70 states. Second operand 71 states. [2018-12-18 17:55:39,620 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 71 states. [2018-12-18 17:55:39,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:55:39,622 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2018-12-18 17:55:39,622 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2018-12-18 17:55:39,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:55:39,622 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:55:39,623 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:55:39,623 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:55:39,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-12-18 17:55:39,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 70 transitions. [2018-12-18 17:55:39,624 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 70 transitions. Word has length 67 [2018-12-18 17:55:39,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:55:39,624 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 70 transitions. [2018-12-18 17:55:39,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has 71 states. [2018-12-18 17:55:39,624 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 70 transitions. [2018-12-18 17:55:39,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-12-18 17:55:39,625 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:55:39,625 INFO L402 BasicCegarLoop]: trace histogram [34, 33, 1, 1] [2018-12-18 17:55:39,625 INFO L423 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:55:39,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:55:39,626 INFO L82 PathProgramCache]: Analyzing trace with hash 205046114, now seen corresponding path program 33 times [2018-12-18 17:55:39,626 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:55:39,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:55:39,626 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:55:39,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:55:39,627 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:55:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:55:41,410 INFO L273 TraceCheckUtils]: 0: Hoare triple {15078#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {15080#(and (or (<= main_i 0) (<= main_n 33)) (or (< 33 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,411 INFO L273 TraceCheckUtils]: 1: Hoare triple {15080#(and (or (<= main_i 0) (<= main_n 33)) (or (< 33 main_n) (<= 0 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15081#(and (or (<= main_n 33) (<= main_i 4)) (or (< 33 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,412 INFO L273 TraceCheckUtils]: 2: Hoare triple {15081#(and (or (<= main_n 33) (<= main_i 4)) (or (< 33 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15081#(and (or (<= main_n 33) (<= main_i 4)) (or (< 33 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,413 INFO L273 TraceCheckUtils]: 3: Hoare triple {15081#(and (or (<= main_n 33) (<= main_i 4)) (or (< 33 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15082#(and (or (<= main_i 8) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 8 main_i)))} is VALID [2018-12-18 17:55:41,414 INFO L273 TraceCheckUtils]: 4: Hoare triple {15082#(and (or (<= main_i 8) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 8 main_i)))} assume i <= n * 4; {15082#(and (or (<= main_i 8) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 8 main_i)))} is VALID [2018-12-18 17:55:41,415 INFO L273 TraceCheckUtils]: 5: Hoare triple {15082#(and (or (<= main_i 8) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 8 main_i)))} assume a[i] != 23;i := i + 4; {15083#(and (or (< 33 main_n) (<= 12 main_i)) (or (<= main_n 33) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,415 INFO L273 TraceCheckUtils]: 6: Hoare triple {15083#(and (or (< 33 main_n) (<= 12 main_i)) (or (<= main_n 33) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15083#(and (or (< 33 main_n) (<= 12 main_i)) (or (<= main_n 33) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,416 INFO L273 TraceCheckUtils]: 7: Hoare triple {15083#(and (or (< 33 main_n) (<= 12 main_i)) (or (<= main_n 33) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15084#(and (or (<= main_n 33) (<= main_i 16)) (or (< 33 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,417 INFO L273 TraceCheckUtils]: 8: Hoare triple {15084#(and (or (<= main_n 33) (<= main_i 16)) (or (< 33 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15084#(and (or (<= main_n 33) (<= main_i 16)) (or (< 33 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,418 INFO L273 TraceCheckUtils]: 9: Hoare triple {15084#(and (or (<= main_n 33) (<= main_i 16)) (or (< 33 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15085#(and (or (< 33 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,419 INFO L273 TraceCheckUtils]: 10: Hoare triple {15085#(and (or (< 33 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15085#(and (or (< 33 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,420 INFO L273 TraceCheckUtils]: 11: Hoare triple {15085#(and (or (< 33 main_n) (<= 20 main_i)) (or (<= main_i 20) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15086#(and (or (< 33 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,421 INFO L273 TraceCheckUtils]: 12: Hoare triple {15086#(and (or (< 33 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15086#(and (or (< 33 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,422 INFO L273 TraceCheckUtils]: 13: Hoare triple {15086#(and (or (< 33 main_n) (<= 24 main_i)) (or (<= main_i 24) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15087#(and (or (<= main_n 33) (<= main_i 28)) (or (< 33 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,423 INFO L273 TraceCheckUtils]: 14: Hoare triple {15087#(and (or (<= main_n 33) (<= main_i 28)) (or (< 33 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15087#(and (or (<= main_n 33) (<= main_i 28)) (or (< 33 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,424 INFO L273 TraceCheckUtils]: 15: Hoare triple {15087#(and (or (<= main_n 33) (<= main_i 28)) (or (< 33 main_n) (<= 28 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15088#(and (or (<= 32 main_i) (< 33 main_n)) (or (<= main_i 32) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,424 INFO L273 TraceCheckUtils]: 16: Hoare triple {15088#(and (or (<= 32 main_i) (< 33 main_n)) (or (<= main_i 32) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15088#(and (or (<= 32 main_i) (< 33 main_n)) (or (<= main_i 32) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,425 INFO L273 TraceCheckUtils]: 17: Hoare triple {15088#(and (or (<= 32 main_i) (< 33 main_n)) (or (<= main_i 32) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15089#(and (or (<= main_i 36) (<= main_n 33)) (or (< 33 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,426 INFO L273 TraceCheckUtils]: 18: Hoare triple {15089#(and (or (<= main_i 36) (<= main_n 33)) (or (< 33 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15089#(and (or (<= main_i 36) (<= main_n 33)) (or (< 33 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,427 INFO L273 TraceCheckUtils]: 19: Hoare triple {15089#(and (or (<= main_i 36) (<= main_n 33)) (or (< 33 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15090#(and (or (<= main_i 40) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 33 main_n)))} is VALID [2018-12-18 17:55:41,428 INFO L273 TraceCheckUtils]: 20: Hoare triple {15090#(and (or (<= main_i 40) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 33 main_n)))} assume i <= n * 4; {15090#(and (or (<= main_i 40) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 33 main_n)))} is VALID [2018-12-18 17:55:41,429 INFO L273 TraceCheckUtils]: 21: Hoare triple {15090#(and (or (<= main_i 40) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 33 main_n)))} assume a[i] != 23;i := i + 4; {15091#(and (or (<= main_n 33) (<= main_i 44)) (or (< 33 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,430 INFO L273 TraceCheckUtils]: 22: Hoare triple {15091#(and (or (<= main_n 33) (<= main_i 44)) (or (< 33 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15091#(and (or (<= main_n 33) (<= main_i 44)) (or (< 33 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,431 INFO L273 TraceCheckUtils]: 23: Hoare triple {15091#(and (or (<= main_n 33) (<= main_i 44)) (or (< 33 main_n) (<= 44 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15092#(and (or (< 33 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 33) (<= main_i 48)))} is VALID [2018-12-18 17:55:41,431 INFO L273 TraceCheckUtils]: 24: Hoare triple {15092#(and (or (< 33 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 33) (<= main_i 48)))} assume i <= n * 4; {15092#(and (or (< 33 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 33) (<= main_i 48)))} is VALID [2018-12-18 17:55:41,432 INFO L273 TraceCheckUtils]: 25: Hoare triple {15092#(and (or (< 33 main_n) (<= 48 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 33) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {15093#(and (or (<= main_i 52) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 52 main_i)))} is VALID [2018-12-18 17:55:41,433 INFO L273 TraceCheckUtils]: 26: Hoare triple {15093#(and (or (<= main_i 52) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 52 main_i)))} assume i <= n * 4; {15093#(and (or (<= main_i 52) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 52 main_i)))} is VALID [2018-12-18 17:55:41,434 INFO L273 TraceCheckUtils]: 27: Hoare triple {15093#(and (or (<= main_i 52) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 52 main_i)))} assume a[i] != 23;i := i + 4; {15094#(and (or (<= main_i 56) (<= main_n 33)) (or (< 33 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,435 INFO L273 TraceCheckUtils]: 28: Hoare triple {15094#(and (or (<= main_i 56) (<= main_n 33)) (or (< 33 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15094#(and (or (<= main_i 56) (<= main_n 33)) (or (< 33 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,436 INFO L273 TraceCheckUtils]: 29: Hoare triple {15094#(and (or (<= main_i 56) (<= main_n 33)) (or (< 33 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15095#(and (or (<= main_i 60) (<= main_n 33)) (or (< 33 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,437 INFO L273 TraceCheckUtils]: 30: Hoare triple {15095#(and (or (<= main_i 60) (<= main_n 33)) (or (< 33 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15095#(and (or (<= main_i 60) (<= main_n 33)) (or (< 33 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,438 INFO L273 TraceCheckUtils]: 31: Hoare triple {15095#(and (or (<= main_i 60) (<= main_n 33)) (or (< 33 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15096#(and (or (<= main_i 64) (<= main_n 33)) (or (< 33 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,438 INFO L273 TraceCheckUtils]: 32: Hoare triple {15096#(and (or (<= main_i 64) (<= main_n 33)) (or (< 33 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15096#(and (or (<= main_i 64) (<= main_n 33)) (or (< 33 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,439 INFO L273 TraceCheckUtils]: 33: Hoare triple {15096#(and (or (<= main_i 64) (<= main_n 33)) (or (< 33 main_n) (<= 64 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15097#(and (or (< 33 main_n) (<= 68 main_i)) (or (<= main_n 33) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,440 INFO L273 TraceCheckUtils]: 34: Hoare triple {15097#(and (or (< 33 main_n) (<= 68 main_i)) (or (<= main_n 33) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15097#(and (or (< 33 main_n) (<= 68 main_i)) (or (<= main_n 33) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,441 INFO L273 TraceCheckUtils]: 35: Hoare triple {15097#(and (or (< 33 main_n) (<= 68 main_i)) (or (<= main_n 33) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15098#(and (or (<= main_i 72) (<= main_n 33)) (or (<= 72 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,442 INFO L273 TraceCheckUtils]: 36: Hoare triple {15098#(and (or (<= main_i 72) (<= main_n 33)) (or (<= 72 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15098#(and (or (<= main_i 72) (<= main_n 33)) (or (<= 72 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,443 INFO L273 TraceCheckUtils]: 37: Hoare triple {15098#(and (or (<= main_i 72) (<= main_n 33)) (or (<= 72 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15099#(and (or (<= 76 main_i) (< 33 main_n)) (or (<= main_i 76) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,444 INFO L273 TraceCheckUtils]: 38: Hoare triple {15099#(and (or (<= 76 main_i) (< 33 main_n)) (or (<= main_i 76) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15099#(and (or (<= 76 main_i) (< 33 main_n)) (or (<= main_i 76) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,445 INFO L273 TraceCheckUtils]: 39: Hoare triple {15099#(and (or (<= 76 main_i) (< 33 main_n)) (or (<= main_i 76) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15100#(and (or (<= main_n 33) (<= main_i 80)) (or (< 33 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,446 INFO L273 TraceCheckUtils]: 40: Hoare triple {15100#(and (or (<= main_n 33) (<= main_i 80)) (or (< 33 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15100#(and (or (<= main_n 33) (<= main_i 80)) (or (< 33 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,447 INFO L273 TraceCheckUtils]: 41: Hoare triple {15100#(and (or (<= main_n 33) (<= main_i 80)) (or (< 33 main_n) (<= 80 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15101#(and (or (< 33 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 33)))} is VALID [2018-12-18 17:55:41,447 INFO L273 TraceCheckUtils]: 42: Hoare triple {15101#(and (or (< 33 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 33)))} assume i <= n * 4; {15101#(and (or (< 33 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 33)))} is VALID [2018-12-18 17:55:41,448 INFO L273 TraceCheckUtils]: 43: Hoare triple {15101#(and (or (< 33 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 33)))} assume a[i] != 23;i := i + 4; {15102#(and (or (< 33 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 33)))} is VALID [2018-12-18 17:55:41,449 INFO L273 TraceCheckUtils]: 44: Hoare triple {15102#(and (or (< 33 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 33)))} assume i <= n * 4; {15102#(and (or (< 33 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 33)))} is VALID [2018-12-18 17:55:41,450 INFO L273 TraceCheckUtils]: 45: Hoare triple {15102#(and (or (< 33 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 33)))} assume a[i] != 23;i := i + 4; {15103#(and (or (< 33 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,451 INFO L273 TraceCheckUtils]: 46: Hoare triple {15103#(and (or (< 33 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15103#(and (or (< 33 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,452 INFO L273 TraceCheckUtils]: 47: Hoare triple {15103#(and (or (< 33 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15104#(and (or (< 33 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,453 INFO L273 TraceCheckUtils]: 48: Hoare triple {15104#(and (or (< 33 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15104#(and (or (< 33 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,454 INFO L273 TraceCheckUtils]: 49: Hoare triple {15104#(and (or (< 33 main_n) (<= 96 main_i)) (or (<= main_i 96) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15105#(and (or (< 33 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,454 INFO L273 TraceCheckUtils]: 50: Hoare triple {15105#(and (or (< 33 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15105#(and (or (< 33 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,456 INFO L273 TraceCheckUtils]: 51: Hoare triple {15105#(and (or (< 33 main_n) (<= 100 main_i)) (or (<= main_i 100) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15106#(and (or (<= main_i 104) (<= main_n 33)) (or (< 33 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,456 INFO L273 TraceCheckUtils]: 52: Hoare triple {15106#(and (or (<= main_i 104) (<= main_n 33)) (or (< 33 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15106#(and (or (<= main_i 104) (<= main_n 33)) (or (< 33 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,457 INFO L273 TraceCheckUtils]: 53: Hoare triple {15106#(and (or (<= main_i 104) (<= main_n 33)) (or (< 33 main_n) (<= 104 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15107#(and (or (<= main_n 33) (<= main_i 108)) (or (< 33 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,458 INFO L273 TraceCheckUtils]: 54: Hoare triple {15107#(and (or (<= main_n 33) (<= main_i 108)) (or (< 33 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15107#(and (or (<= main_n 33) (<= main_i 108)) (or (< 33 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,459 INFO L273 TraceCheckUtils]: 55: Hoare triple {15107#(and (or (<= main_n 33) (<= main_i 108)) (or (< 33 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15108#(and (or (<= main_n 33) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 112 main_i)))} is VALID [2018-12-18 17:55:41,460 INFO L273 TraceCheckUtils]: 56: Hoare triple {15108#(and (or (<= main_n 33) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 112 main_i)))} assume i <= n * 4; {15108#(and (or (<= main_n 33) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 112 main_i)))} is VALID [2018-12-18 17:55:41,461 INFO L273 TraceCheckUtils]: 57: Hoare triple {15108#(and (or (<= main_n 33) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 112 main_i)))} assume a[i] != 23;i := i + 4; {15109#(and (or (<= main_i 116) (<= main_n 33)) (or (<= 116 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,462 INFO L273 TraceCheckUtils]: 58: Hoare triple {15109#(and (or (<= main_i 116) (<= main_n 33)) (or (<= 116 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15109#(and (or (<= main_i 116) (<= main_n 33)) (or (<= 116 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,463 INFO L273 TraceCheckUtils]: 59: Hoare triple {15109#(and (or (<= main_i 116) (<= main_n 33)) (or (<= 116 main_i) (< 33 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15110#(and (or (< 33 main_n) (<= 120 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 120) (<= main_n 33)))} is VALID [2018-12-18 17:55:41,463 INFO L273 TraceCheckUtils]: 60: Hoare triple {15110#(and (or (< 33 main_n) (<= 120 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 120) (<= main_n 33)))} assume i <= n * 4; {15110#(and (or (< 33 main_n) (<= 120 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 120) (<= main_n 33)))} is VALID [2018-12-18 17:55:41,464 INFO L273 TraceCheckUtils]: 61: Hoare triple {15110#(and (or (< 33 main_n) (<= 120 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 120) (<= main_n 33)))} assume a[i] != 23;i := i + 4; {15111#(and (or (< 33 main_n) (<= 124 main_i)) (or (<= main_i 124) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,465 INFO L273 TraceCheckUtils]: 62: Hoare triple {15111#(and (or (< 33 main_n) (<= 124 main_i)) (or (<= main_i 124) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15111#(and (or (< 33 main_n) (<= 124 main_i)) (or (<= main_i 124) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:41,466 INFO L273 TraceCheckUtils]: 63: Hoare triple {15111#(and (or (< 33 main_n) (<= 124 main_i)) (or (<= main_i 124) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15112#(and (or (<= main_i 128) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 128 main_i)))} is VALID [2018-12-18 17:55:41,467 INFO L273 TraceCheckUtils]: 64: Hoare triple {15112#(and (or (<= main_i 128) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 128 main_i)))} assume i <= n * 4; {15112#(and (or (<= main_i 128) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 128 main_i)))} is VALID [2018-12-18 17:55:41,468 INFO L273 TraceCheckUtils]: 65: Hoare triple {15112#(and (or (<= main_i 128) (<= main_n 33)) (= 23 (select main_a (* 4 main_n))) (or (< 33 main_n) (<= 128 main_i)))} assume a[i] != 23;i := i + 4; {15113#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (< 33 main_n) (<= (* 4 main_n) main_i)) (or (<= main_i 132) (<= main_n 33)))))} is VALID [2018-12-18 17:55:41,469 INFO L273 TraceCheckUtils]: 66: Hoare triple {15113#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (< 33 main_n) (<= (* 4 main_n) main_i)) (or (<= main_i 132) (<= main_n 33)))))} assume i <= n * 4; {15114#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 132) (< 33 main_n))))} is VALID [2018-12-18 17:55:41,470 INFO L273 TraceCheckUtils]: 67: Hoare triple {15114#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 132) (< 33 main_n))))} assume a[i] != 23;i := i + 4; {15115#(and (<= main_i 136) (<= 34 main_n))} is VALID [2018-12-18 17:55:41,471 INFO L273 TraceCheckUtils]: 68: Hoare triple {15115#(and (<= main_i 136) (<= 34 main_n))} assume !(i <= n * 4); {15079#false} is VALID [2018-12-18 17:55:41,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:55:41,492 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:55:41,493 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:55:41,493 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:55:41,493 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:55:41,493 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:55:41,493 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:55:41,501 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-18 17:55:41,502 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-18 17:55:41,533 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-18 17:55:41,533 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:55:41,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:55:41,546 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:55:41,561 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:55:41,562 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:55:41,567 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:55:41,567 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:55:41,569 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:55:41,570 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_37]. (and (= (store v_main_a_37 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:55:41,570 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:55:43,553 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:55:43,555 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:55:43,561 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:55:43,561 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:55:43,563 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:55:43,563 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 136) (<= 132 .cse0) (not (= (select main_a 132) 23)) (= 23 (select main_a .cse0)))) [2018-12-18 17:55:43,564 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 136) (<= 132 .cse0) (not (= 132 .cse0)))) [2018-12-18 17:55:43,609 INFO L273 TraceCheckUtils]: 0: Hoare triple {15078#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {15119#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,610 INFO L273 TraceCheckUtils]: 1: Hoare triple {15119#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15123#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:55:43,610 INFO L273 TraceCheckUtils]: 2: Hoare triple {15123#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {15123#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:55:43,611 INFO L273 TraceCheckUtils]: 3: Hoare triple {15123#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {15130#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,612 INFO L273 TraceCheckUtils]: 4: Hoare triple {15130#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15130#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,612 INFO L273 TraceCheckUtils]: 5: Hoare triple {15130#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15137#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:55:43,613 INFO L273 TraceCheckUtils]: 6: Hoare triple {15137#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {15137#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:55:43,614 INFO L273 TraceCheckUtils]: 7: Hoare triple {15137#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {15144#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,614 INFO L273 TraceCheckUtils]: 8: Hoare triple {15144#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15144#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,615 INFO L273 TraceCheckUtils]: 9: Hoare triple {15144#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15151#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,616 INFO L273 TraceCheckUtils]: 10: Hoare triple {15151#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15151#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,616 INFO L273 TraceCheckUtils]: 11: Hoare triple {15151#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15158#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,617 INFO L273 TraceCheckUtils]: 12: Hoare triple {15158#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15158#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,618 INFO L273 TraceCheckUtils]: 13: Hoare triple {15158#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15165#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,618 INFO L273 TraceCheckUtils]: 14: Hoare triple {15165#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15165#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,619 INFO L273 TraceCheckUtils]: 15: Hoare triple {15165#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15172#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,620 INFO L273 TraceCheckUtils]: 16: Hoare triple {15172#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15172#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,621 INFO L273 TraceCheckUtils]: 17: Hoare triple {15172#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15179#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,621 INFO L273 TraceCheckUtils]: 18: Hoare triple {15179#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15179#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,622 INFO L273 TraceCheckUtils]: 19: Hoare triple {15179#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15186#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,623 INFO L273 TraceCheckUtils]: 20: Hoare triple {15186#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15186#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,623 INFO L273 TraceCheckUtils]: 21: Hoare triple {15186#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15193#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,624 INFO L273 TraceCheckUtils]: 22: Hoare triple {15193#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15193#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,625 INFO L273 TraceCheckUtils]: 23: Hoare triple {15193#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15200#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,625 INFO L273 TraceCheckUtils]: 24: Hoare triple {15200#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15200#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,626 INFO L273 TraceCheckUtils]: 25: Hoare triple {15200#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15207#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,627 INFO L273 TraceCheckUtils]: 26: Hoare triple {15207#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15207#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,627 INFO L273 TraceCheckUtils]: 27: Hoare triple {15207#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15214#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,628 INFO L273 TraceCheckUtils]: 28: Hoare triple {15214#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15214#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,629 INFO L273 TraceCheckUtils]: 29: Hoare triple {15214#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15221#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,629 INFO L273 TraceCheckUtils]: 30: Hoare triple {15221#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15221#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,630 INFO L273 TraceCheckUtils]: 31: Hoare triple {15221#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15228#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,631 INFO L273 TraceCheckUtils]: 32: Hoare triple {15228#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15228#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,631 INFO L273 TraceCheckUtils]: 33: Hoare triple {15228#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15235#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,632 INFO L273 TraceCheckUtils]: 34: Hoare triple {15235#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15235#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,633 INFO L273 TraceCheckUtils]: 35: Hoare triple {15235#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15242#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,633 INFO L273 TraceCheckUtils]: 36: Hoare triple {15242#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15242#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,634 INFO L273 TraceCheckUtils]: 37: Hoare triple {15242#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15249#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,635 INFO L273 TraceCheckUtils]: 38: Hoare triple {15249#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15249#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,635 INFO L273 TraceCheckUtils]: 39: Hoare triple {15249#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15256#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:55:43,636 INFO L273 TraceCheckUtils]: 40: Hoare triple {15256#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {15256#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:55:43,637 INFO L273 TraceCheckUtils]: 41: Hoare triple {15256#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {15263#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,637 INFO L273 TraceCheckUtils]: 42: Hoare triple {15263#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15263#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,638 INFO L273 TraceCheckUtils]: 43: Hoare triple {15263#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15270#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,639 INFO L273 TraceCheckUtils]: 44: Hoare triple {15270#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15270#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,639 INFO L273 TraceCheckUtils]: 45: Hoare triple {15270#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15277#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,640 INFO L273 TraceCheckUtils]: 46: Hoare triple {15277#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15277#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,641 INFO L273 TraceCheckUtils]: 47: Hoare triple {15277#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15284#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,641 INFO L273 TraceCheckUtils]: 48: Hoare triple {15284#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15284#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,642 INFO L273 TraceCheckUtils]: 49: Hoare triple {15284#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15291#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,643 INFO L273 TraceCheckUtils]: 50: Hoare triple {15291#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15291#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,643 INFO L273 TraceCheckUtils]: 51: Hoare triple {15291#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15298#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,644 INFO L273 TraceCheckUtils]: 52: Hoare triple {15298#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15298#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,645 INFO L273 TraceCheckUtils]: 53: Hoare triple {15298#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15305#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,645 INFO L273 TraceCheckUtils]: 54: Hoare triple {15305#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15305#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,646 INFO L273 TraceCheckUtils]: 55: Hoare triple {15305#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15312#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,647 INFO L273 TraceCheckUtils]: 56: Hoare triple {15312#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15312#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,648 INFO L273 TraceCheckUtils]: 57: Hoare triple {15312#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15319#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,648 INFO L273 TraceCheckUtils]: 58: Hoare triple {15319#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15319#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,649 INFO L273 TraceCheckUtils]: 59: Hoare triple {15319#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15326#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,650 INFO L273 TraceCheckUtils]: 60: Hoare triple {15326#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15326#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,650 INFO L273 TraceCheckUtils]: 61: Hoare triple {15326#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15333#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,651 INFO L273 TraceCheckUtils]: 62: Hoare triple {15333#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15333#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,652 INFO L273 TraceCheckUtils]: 63: Hoare triple {15333#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15340#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,652 INFO L273 TraceCheckUtils]: 64: Hoare triple {15340#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15340#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,653 INFO L273 TraceCheckUtils]: 65: Hoare triple {15340#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15347#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,654 INFO L273 TraceCheckUtils]: 66: Hoare triple {15347#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15351#(and (<= main_i (* 4 main_n)) (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:43,655 INFO L273 TraceCheckUtils]: 67: Hoare triple {15351#(and (<= main_i (* 4 main_n)) (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15115#(and (<= main_i 136) (<= 34 main_n))} is VALID [2018-12-18 17:55:43,655 INFO L273 TraceCheckUtils]: 68: Hoare triple {15115#(and (<= main_i 136) (<= 34 main_n))} assume !(i <= n * 4); {15079#false} is VALID [2018-12-18 17:55:43,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:55:43,667 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:55:47,158 INFO L273 TraceCheckUtils]: 68: Hoare triple {15358#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {15079#false} is VALID [2018-12-18 17:55:47,159 INFO L273 TraceCheckUtils]: 67: Hoare triple {15362#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {15358#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:55:47,160 INFO L273 TraceCheckUtils]: 66: Hoare triple {15366#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {15362#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:55:47,161 INFO L273 TraceCheckUtils]: 65: Hoare triple {15370#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {15366#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:55:47,161 INFO L273 TraceCheckUtils]: 64: Hoare triple {15370#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {15370#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:55:47,163 INFO L273 TraceCheckUtils]: 63: Hoare triple {15377#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {15370#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:55:47,163 INFO L273 TraceCheckUtils]: 62: Hoare triple {15377#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {15377#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:55:47,164 INFO L273 TraceCheckUtils]: 61: Hoare triple {15384#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {15377#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:55:47,170 INFO L273 TraceCheckUtils]: 60: Hoare triple {15384#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {15384#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:55:47,171 INFO L273 TraceCheckUtils]: 59: Hoare triple {15391#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {15384#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:55:47,171 INFO L273 TraceCheckUtils]: 58: Hoare triple {15391#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {15391#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:55:47,172 INFO L273 TraceCheckUtils]: 57: Hoare triple {15398#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15391#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:55:47,172 INFO L273 TraceCheckUtils]: 56: Hoare triple {15398#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {15398#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,173 INFO L273 TraceCheckUtils]: 55: Hoare triple {15405#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {15398#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,173 INFO L273 TraceCheckUtils]: 54: Hoare triple {15405#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {15405#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:55:47,174 INFO L273 TraceCheckUtils]: 53: Hoare triple {15412#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15405#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:55:47,174 INFO L273 TraceCheckUtils]: 52: Hoare triple {15412#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {15412#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,175 INFO L273 TraceCheckUtils]: 51: Hoare triple {15419#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15412#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,176 INFO L273 TraceCheckUtils]: 50: Hoare triple {15419#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {15419#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,177 INFO L273 TraceCheckUtils]: 49: Hoare triple {15426#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15419#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,177 INFO L273 TraceCheckUtils]: 48: Hoare triple {15426#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {15426#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,178 INFO L273 TraceCheckUtils]: 47: Hoare triple {15433#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {15426#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,179 INFO L273 TraceCheckUtils]: 46: Hoare triple {15433#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {15433#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:55:47,180 INFO L273 TraceCheckUtils]: 45: Hoare triple {15440#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15433#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:55:47,181 INFO L273 TraceCheckUtils]: 44: Hoare triple {15440#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {15440#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,182 INFO L273 TraceCheckUtils]: 43: Hoare triple {15447#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15440#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,182 INFO L273 TraceCheckUtils]: 42: Hoare triple {15447#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {15447#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,183 INFO L273 TraceCheckUtils]: 41: Hoare triple {15454#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {15447#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,184 INFO L273 TraceCheckUtils]: 40: Hoare triple {15454#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {15454#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:55:47,185 INFO L273 TraceCheckUtils]: 39: Hoare triple {15461#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15454#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:55:47,185 INFO L273 TraceCheckUtils]: 38: Hoare triple {15461#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {15461#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,187 INFO L273 TraceCheckUtils]: 37: Hoare triple {15468#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {15461#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,187 INFO L273 TraceCheckUtils]: 36: Hoare triple {15468#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {15468#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:55:47,188 INFO L273 TraceCheckUtils]: 35: Hoare triple {15475#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {15468#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:55:47,189 INFO L273 TraceCheckUtils]: 34: Hoare triple {15475#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {15475#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:55:47,190 INFO L273 TraceCheckUtils]: 33: Hoare triple {15482#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {15475#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:55:47,190 INFO L273 TraceCheckUtils]: 32: Hoare triple {15482#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {15482#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:55:47,191 INFO L273 TraceCheckUtils]: 31: Hoare triple {15489#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {15482#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:55:47,192 INFO L273 TraceCheckUtils]: 30: Hoare triple {15489#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {15489#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:55:47,193 INFO L273 TraceCheckUtils]: 29: Hoare triple {15496#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {15489#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:55:47,194 INFO L273 TraceCheckUtils]: 28: Hoare triple {15496#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {15496#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:55:47,195 INFO L273 TraceCheckUtils]: 27: Hoare triple {15503#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {15496#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:55:47,195 INFO L273 TraceCheckUtils]: 26: Hoare triple {15503#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {15503#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:55:47,196 INFO L273 TraceCheckUtils]: 25: Hoare triple {15510#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15503#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:55:47,197 INFO L273 TraceCheckUtils]: 24: Hoare triple {15510#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {15510#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,198 INFO L273 TraceCheckUtils]: 23: Hoare triple {15517#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15510#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,199 INFO L273 TraceCheckUtils]: 22: Hoare triple {15517#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {15517#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,200 INFO L273 TraceCheckUtils]: 21: Hoare triple {15524#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15517#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,200 INFO L273 TraceCheckUtils]: 20: Hoare triple {15524#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {15524#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,201 INFO L273 TraceCheckUtils]: 19: Hoare triple {15531#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {15524#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,202 INFO L273 TraceCheckUtils]: 18: Hoare triple {15531#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {15531#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:55:47,203 INFO L273 TraceCheckUtils]: 17: Hoare triple {15538#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15531#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:55:47,203 INFO L273 TraceCheckUtils]: 16: Hoare triple {15538#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {15538#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,204 INFO L273 TraceCheckUtils]: 15: Hoare triple {15545#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {15538#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,205 INFO L273 TraceCheckUtils]: 14: Hoare triple {15545#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {15545#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:55:47,206 INFO L273 TraceCheckUtils]: 13: Hoare triple {15552#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {15545#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:55:47,206 INFO L273 TraceCheckUtils]: 12: Hoare triple {15552#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {15552#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:55:47,207 INFO L273 TraceCheckUtils]: 11: Hoare triple {15559#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {15552#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:55:47,208 INFO L273 TraceCheckUtils]: 10: Hoare triple {15559#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {15559#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:55:47,209 INFO L273 TraceCheckUtils]: 9: Hoare triple {15566#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15559#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:55:47,210 INFO L273 TraceCheckUtils]: 8: Hoare triple {15566#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {15566#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,211 INFO L273 TraceCheckUtils]: 7: Hoare triple {15573#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15566#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,211 INFO L273 TraceCheckUtils]: 6: Hoare triple {15573#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {15573#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,212 INFO L273 TraceCheckUtils]: 5: Hoare triple {15580#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {15573#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,213 INFO L273 TraceCheckUtils]: 4: Hoare triple {15580#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {15580#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:55:47,214 INFO L273 TraceCheckUtils]: 3: Hoare triple {15587#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {15580#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:55:47,215 INFO L273 TraceCheckUtils]: 2: Hoare triple {15587#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {15587#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,216 INFO L273 TraceCheckUtils]: 1: Hoare triple {15594#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {15587#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:55:47,217 INFO L273 TraceCheckUtils]: 0: Hoare triple {15078#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {15594#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 17:55:47,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:55:47,253 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:55:47,253 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36, 36] total 107 [2018-12-18 17:55:47,253 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:55:47,254 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 69 [2018-12-18 17:55:47,254 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:55:47,254 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 73 states. [2018-12-18 17:55:47,416 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 137 edges. 137 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:55:47,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 73 states [2018-12-18 17:55:47,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2018-12-18 17:55:47,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1484, Invalid=10288, Unknown=0, NotChecked=0, Total=11772 [2018-12-18 17:55:47,417 INFO L87 Difference]: Start difference. First operand 70 states and 70 transitions. Second operand 73 states. [2018-12-18 17:55:55,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:55:55,970 INFO L93 Difference]: Finished difference Result 74 states and 74 transitions. [2018-12-18 17:55:55,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-12-18 17:55:55,970 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 69 [2018-12-18 17:55:55,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:55:55,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-12-18 17:55:55,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 74 transitions. [2018-12-18 17:55:55,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-12-18 17:55:55,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 74 transitions. [2018-12-18 17:55:55,972 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 38 states and 74 transitions. [2018-12-18 17:55:56,050 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:55:56,052 INFO L225 Difference]: With dead ends: 74 [2018-12-18 17:55:56,052 INFO L226 Difference]: Without dead ends: 73 [2018-12-18 17:55:56,053 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2660 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=1484, Invalid=10288, Unknown=0, NotChecked=0, Total=11772 [2018-12-18 17:55:56,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-12-18 17:55:56,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 72. [2018-12-18 17:55:56,117 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:55:56,117 INFO L82 GeneralOperation]: Start isEquivalent. First operand 73 states. Second operand 72 states. [2018-12-18 17:55:56,117 INFO L74 IsIncluded]: Start isIncluded. First operand 73 states. Second operand 72 states. [2018-12-18 17:55:56,117 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 72 states. [2018-12-18 17:55:56,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:55:56,118 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2018-12-18 17:55:56,119 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2018-12-18 17:55:56,119 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:55:56,119 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:55:56,119 INFO L74 IsIncluded]: Start isIncluded. First operand 72 states. Second operand 73 states. [2018-12-18 17:55:56,119 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 73 states. [2018-12-18 17:55:56,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:55:56,121 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2018-12-18 17:55:56,121 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2018-12-18 17:55:56,121 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:55:56,121 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:55:56,121 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:55:56,121 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:55:56,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-12-18 17:55:56,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 72 transitions. [2018-12-18 17:55:56,123 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 72 transitions. Word has length 69 [2018-12-18 17:55:56,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:55:56,123 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 72 transitions. [2018-12-18 17:55:56,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has 73 states. [2018-12-18 17:55:56,123 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 72 transitions. [2018-12-18 17:55:56,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-12-18 17:55:56,124 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:55:56,124 INFO L402 BasicCegarLoop]: trace histogram [35, 34, 1, 1] [2018-12-18 17:55:56,124 INFO L423 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:55:56,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:55:56,124 INFO L82 PathProgramCache]: Analyzing trace with hash -519178972, now seen corresponding path program 34 times [2018-12-18 17:55:56,124 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:55:56,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:55:56,125 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:55:56,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:55:56,125 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:55:56,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:55:58,035 INFO L273 TraceCheckUtils]: 0: Hoare triple {15960#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {15962#(and (or (<= 0 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 0) (<= main_n 34)))} is VALID [2018-12-18 17:55:58,037 INFO L273 TraceCheckUtils]: 1: Hoare triple {15962#(and (or (<= 0 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 0) (<= main_n 34)))} assume a[i] != 23;i := i + 4; {15963#(and (or (< 34 main_n) (<= 4 main_i)) (or (<= main_i 4) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,037 INFO L273 TraceCheckUtils]: 2: Hoare triple {15963#(and (or (< 34 main_n) (<= 4 main_i)) (or (<= main_i 4) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15963#(and (or (< 34 main_n) (<= 4 main_i)) (or (<= main_i 4) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,038 INFO L273 TraceCheckUtils]: 3: Hoare triple {15963#(and (or (< 34 main_n) (<= 4 main_i)) (or (<= main_i 4) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15964#(and (or (<= 8 main_i) (< 34 main_n)) (or (<= main_i 8) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,039 INFO L273 TraceCheckUtils]: 4: Hoare triple {15964#(and (or (<= 8 main_i) (< 34 main_n)) (or (<= main_i 8) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15964#(and (or (<= 8 main_i) (< 34 main_n)) (or (<= main_i 8) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,040 INFO L273 TraceCheckUtils]: 5: Hoare triple {15964#(and (or (<= 8 main_i) (< 34 main_n)) (or (<= main_i 8) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15965#(and (or (<= main_n 34) (<= main_i 12)) (or (< 34 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,041 INFO L273 TraceCheckUtils]: 6: Hoare triple {15965#(and (or (<= main_n 34) (<= main_i 12)) (or (< 34 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15965#(and (or (<= main_n 34) (<= main_i 12)) (or (< 34 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,042 INFO L273 TraceCheckUtils]: 7: Hoare triple {15965#(and (or (<= main_n 34) (<= main_i 12)) (or (< 34 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15966#(and (or (<= main_i 16) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 34 main_n)))} is VALID [2018-12-18 17:55:58,043 INFO L273 TraceCheckUtils]: 8: Hoare triple {15966#(and (or (<= main_i 16) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 34 main_n)))} assume i <= n * 4; {15966#(and (or (<= main_i 16) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 34 main_n)))} is VALID [2018-12-18 17:55:58,044 INFO L273 TraceCheckUtils]: 9: Hoare triple {15966#(and (or (<= main_i 16) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 34 main_n)))} assume a[i] != 23;i := i + 4; {15967#(and (or (<= main_i 20) (<= main_n 34)) (or (< 34 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,045 INFO L273 TraceCheckUtils]: 10: Hoare triple {15967#(and (or (<= main_i 20) (<= main_n 34)) (or (< 34 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15967#(and (or (<= main_i 20) (<= main_n 34)) (or (< 34 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,046 INFO L273 TraceCheckUtils]: 11: Hoare triple {15967#(and (or (<= main_i 20) (<= main_n 34)) (or (< 34 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15968#(and (or (<= main_i 24) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 34 main_n)))} is VALID [2018-12-18 17:55:58,046 INFO L273 TraceCheckUtils]: 12: Hoare triple {15968#(and (or (<= main_i 24) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 34 main_n)))} assume i <= n * 4; {15968#(and (or (<= main_i 24) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 34 main_n)))} is VALID [2018-12-18 17:55:58,047 INFO L273 TraceCheckUtils]: 13: Hoare triple {15968#(and (or (<= main_i 24) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 24 main_i) (< 34 main_n)))} assume a[i] != 23;i := i + 4; {15969#(and (or (<= 28 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,048 INFO L273 TraceCheckUtils]: 14: Hoare triple {15969#(and (or (<= 28 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15969#(and (or (<= 28 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,049 INFO L273 TraceCheckUtils]: 15: Hoare triple {15969#(and (or (<= 28 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15970#(and (or (<= main_i 32) (<= main_n 34)) (or (<= 32 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,050 INFO L273 TraceCheckUtils]: 16: Hoare triple {15970#(and (or (<= main_i 32) (<= main_n 34)) (or (<= 32 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15970#(and (or (<= main_i 32) (<= main_n 34)) (or (<= 32 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,051 INFO L273 TraceCheckUtils]: 17: Hoare triple {15970#(and (or (<= main_i 32) (<= main_n 34)) (or (<= 32 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15971#(and (or (<= main_i 36) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 36 main_i)))} is VALID [2018-12-18 17:55:58,052 INFO L273 TraceCheckUtils]: 18: Hoare triple {15971#(and (or (<= main_i 36) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 36 main_i)))} assume i <= n * 4; {15971#(and (or (<= main_i 36) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 36 main_i)))} is VALID [2018-12-18 17:55:58,053 INFO L273 TraceCheckUtils]: 19: Hoare triple {15971#(and (or (<= main_i 36) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 36 main_i)))} assume a[i] != 23;i := i + 4; {15972#(and (or (<= 40 main_i) (< 34 main_n)) (or (<= main_i 40) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,053 INFO L273 TraceCheckUtils]: 20: Hoare triple {15972#(and (or (<= 40 main_i) (< 34 main_n)) (or (<= main_i 40) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15972#(and (or (<= 40 main_i) (< 34 main_n)) (or (<= main_i 40) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,054 INFO L273 TraceCheckUtils]: 21: Hoare triple {15972#(and (or (<= 40 main_i) (< 34 main_n)) (or (<= main_i 40) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15973#(and (or (<= main_n 34) (<= main_i 44)) (or (<= 44 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,055 INFO L273 TraceCheckUtils]: 22: Hoare triple {15973#(and (or (<= main_n 34) (<= main_i 44)) (or (<= 44 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15973#(and (or (<= main_n 34) (<= main_i 44)) (or (<= 44 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,056 INFO L273 TraceCheckUtils]: 23: Hoare triple {15973#(and (or (<= main_n 34) (<= main_i 44)) (or (<= 44 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15974#(and (or (<= 48 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,057 INFO L273 TraceCheckUtils]: 24: Hoare triple {15974#(and (or (<= 48 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15974#(and (or (<= 48 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,058 INFO L273 TraceCheckUtils]: 25: Hoare triple {15974#(and (or (<= 48 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15975#(and (or (< 34 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 34)))} is VALID [2018-12-18 17:55:58,059 INFO L273 TraceCheckUtils]: 26: Hoare triple {15975#(and (or (< 34 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 34)))} assume i <= n * 4; {15975#(and (or (< 34 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 34)))} is VALID [2018-12-18 17:55:58,060 INFO L273 TraceCheckUtils]: 27: Hoare triple {15975#(and (or (< 34 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 52) (<= main_n 34)))} assume a[i] != 23;i := i + 4; {15976#(and (or (<= main_i 56) (<= main_n 34)) (or (< 34 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,061 INFO L273 TraceCheckUtils]: 28: Hoare triple {15976#(and (or (<= main_i 56) (<= main_n 34)) (or (< 34 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15976#(and (or (<= main_i 56) (<= main_n 34)) (or (< 34 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,062 INFO L273 TraceCheckUtils]: 29: Hoare triple {15976#(and (or (<= main_i 56) (<= main_n 34)) (or (< 34 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15977#(and (or (<= main_i 60) (<= main_n 34)) (or (<= 60 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,062 INFO L273 TraceCheckUtils]: 30: Hoare triple {15977#(and (or (<= main_i 60) (<= main_n 34)) (or (<= 60 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15977#(and (or (<= main_i 60) (<= main_n 34)) (or (<= 60 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,063 INFO L273 TraceCheckUtils]: 31: Hoare triple {15977#(and (or (<= main_i 60) (<= main_n 34)) (or (<= 60 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15978#(and (or (<= main_i 64) (<= main_n 34)) (or (<= 64 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,064 INFO L273 TraceCheckUtils]: 32: Hoare triple {15978#(and (or (<= main_i 64) (<= main_n 34)) (or (<= 64 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15978#(and (or (<= main_i 64) (<= main_n 34)) (or (<= 64 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,065 INFO L273 TraceCheckUtils]: 33: Hoare triple {15978#(and (or (<= main_i 64) (<= main_n 34)) (or (<= 64 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15979#(and (or (<= main_n 34) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 68 main_i)))} is VALID [2018-12-18 17:55:58,066 INFO L273 TraceCheckUtils]: 34: Hoare triple {15979#(and (or (<= main_n 34) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 68 main_i)))} assume i <= n * 4; {15979#(and (or (<= main_n 34) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 68 main_i)))} is VALID [2018-12-18 17:55:58,067 INFO L273 TraceCheckUtils]: 35: Hoare triple {15979#(and (or (<= main_n 34) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 68 main_i)))} assume a[i] != 23;i := i + 4; {15980#(and (or (<= main_i 72) (<= main_n 34)) (or (<= 72 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,068 INFO L273 TraceCheckUtils]: 36: Hoare triple {15980#(and (or (<= main_i 72) (<= main_n 34)) (or (<= 72 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15980#(and (or (<= main_i 72) (<= main_n 34)) (or (<= 72 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,069 INFO L273 TraceCheckUtils]: 37: Hoare triple {15980#(and (or (<= main_i 72) (<= main_n 34)) (or (<= 72 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15981#(and (or (<= main_i 76) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 34 main_n)))} is VALID [2018-12-18 17:55:58,069 INFO L273 TraceCheckUtils]: 38: Hoare triple {15981#(and (or (<= main_i 76) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 34 main_n)))} assume i <= n * 4; {15981#(and (or (<= main_i 76) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 34 main_n)))} is VALID [2018-12-18 17:55:58,070 INFO L273 TraceCheckUtils]: 39: Hoare triple {15981#(and (or (<= main_i 76) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 34 main_n)))} assume a[i] != 23;i := i + 4; {15982#(and (or (<= 80 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,071 INFO L273 TraceCheckUtils]: 40: Hoare triple {15982#(and (or (<= 80 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15982#(and (or (<= 80 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,072 INFO L273 TraceCheckUtils]: 41: Hoare triple {15982#(and (or (<= 80 main_i) (< 34 main_n)) (or (<= main_n 34) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15983#(and (or (< 34 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 34)))} is VALID [2018-12-18 17:55:58,073 INFO L273 TraceCheckUtils]: 42: Hoare triple {15983#(and (or (< 34 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 34)))} assume i <= n * 4; {15983#(and (or (< 34 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 34)))} is VALID [2018-12-18 17:55:58,074 INFO L273 TraceCheckUtils]: 43: Hoare triple {15983#(and (or (< 34 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 34)))} assume a[i] != 23;i := i + 4; {15984#(and (or (< 34 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 34)))} is VALID [2018-12-18 17:55:58,075 INFO L273 TraceCheckUtils]: 44: Hoare triple {15984#(and (or (< 34 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 34)))} assume i <= n * 4; {15984#(and (or (< 34 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 34)))} is VALID [2018-12-18 17:55:58,076 INFO L273 TraceCheckUtils]: 45: Hoare triple {15984#(and (or (< 34 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 34)))} assume a[i] != 23;i := i + 4; {15985#(and (or (< 34 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,076 INFO L273 TraceCheckUtils]: 46: Hoare triple {15985#(and (or (< 34 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15985#(and (or (< 34 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,077 INFO L273 TraceCheckUtils]: 47: Hoare triple {15985#(and (or (< 34 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15986#(and (or (<= 96 main_i) (< 34 main_n)) (or (<= main_i 96) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,078 INFO L273 TraceCheckUtils]: 48: Hoare triple {15986#(and (or (<= 96 main_i) (< 34 main_n)) (or (<= main_i 96) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15986#(and (or (<= 96 main_i) (< 34 main_n)) (or (<= main_i 96) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,079 INFO L273 TraceCheckUtils]: 49: Hoare triple {15986#(and (or (<= 96 main_i) (< 34 main_n)) (or (<= main_i 96) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15987#(and (or (<= 100 main_i) (< 34 main_n)) (or (<= main_i 100) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,080 INFO L273 TraceCheckUtils]: 50: Hoare triple {15987#(and (or (<= 100 main_i) (< 34 main_n)) (or (<= main_i 100) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15987#(and (or (<= 100 main_i) (< 34 main_n)) (or (<= main_i 100) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,081 INFO L273 TraceCheckUtils]: 51: Hoare triple {15987#(and (or (<= 100 main_i) (< 34 main_n)) (or (<= main_i 100) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15988#(and (or (<= main_i 104) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 104 main_i) (< 34 main_n)))} is VALID [2018-12-18 17:55:58,082 INFO L273 TraceCheckUtils]: 52: Hoare triple {15988#(and (or (<= main_i 104) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 104 main_i) (< 34 main_n)))} assume i <= n * 4; {15988#(and (or (<= main_i 104) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 104 main_i) (< 34 main_n)))} is VALID [2018-12-18 17:55:58,083 INFO L273 TraceCheckUtils]: 53: Hoare triple {15988#(and (or (<= main_i 104) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))) (or (<= 104 main_i) (< 34 main_n)))} assume a[i] != 23;i := i + 4; {15989#(and (or (<= 108 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 34) (<= main_i 108)))} is VALID [2018-12-18 17:55:58,084 INFO L273 TraceCheckUtils]: 54: Hoare triple {15989#(and (or (<= 108 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 34) (<= main_i 108)))} assume i <= n * 4; {15989#(and (or (<= 108 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 34) (<= main_i 108)))} is VALID [2018-12-18 17:55:58,085 INFO L273 TraceCheckUtils]: 55: Hoare triple {15989#(and (or (<= 108 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 34) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {15990#(and (or (<= main_n 34) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 112 main_i)))} is VALID [2018-12-18 17:55:58,085 INFO L273 TraceCheckUtils]: 56: Hoare triple {15990#(and (or (<= main_n 34) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 112 main_i)))} assume i <= n * 4; {15990#(and (or (<= main_n 34) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 112 main_i)))} is VALID [2018-12-18 17:55:58,086 INFO L273 TraceCheckUtils]: 57: Hoare triple {15990#(and (or (<= main_n 34) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 34 main_n) (<= 112 main_i)))} assume a[i] != 23;i := i + 4; {15991#(and (or (<= 116 main_i) (< 34 main_n)) (or (<= main_i 116) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,087 INFO L273 TraceCheckUtils]: 58: Hoare triple {15991#(and (or (<= 116 main_i) (< 34 main_n)) (or (<= main_i 116) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15991#(and (or (<= 116 main_i) (< 34 main_n)) (or (<= main_i 116) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,088 INFO L273 TraceCheckUtils]: 59: Hoare triple {15991#(and (or (<= 116 main_i) (< 34 main_n)) (or (<= main_i 116) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15992#(and (or (<= 120 main_i) (< 34 main_n)) (or (<= main_i 120) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,089 INFO L273 TraceCheckUtils]: 60: Hoare triple {15992#(and (or (<= 120 main_i) (< 34 main_n)) (or (<= main_i 120) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15992#(and (or (<= 120 main_i) (< 34 main_n)) (or (<= main_i 120) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,090 INFO L273 TraceCheckUtils]: 61: Hoare triple {15992#(and (or (<= 120 main_i) (< 34 main_n)) (or (<= main_i 120) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15993#(and (or (<= main_i 124) (<= main_n 34)) (or (<= 124 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,091 INFO L273 TraceCheckUtils]: 62: Hoare triple {15993#(and (or (<= main_i 124) (<= main_n 34)) (or (<= 124 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15993#(and (or (<= main_i 124) (<= main_n 34)) (or (<= 124 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,092 INFO L273 TraceCheckUtils]: 63: Hoare triple {15993#(and (or (<= main_i 124) (<= main_n 34)) (or (<= 124 main_i) (< 34 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15994#(and (or (<= main_i 128) (<= main_n 34)) (or (< 34 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,092 INFO L273 TraceCheckUtils]: 64: Hoare triple {15994#(and (or (<= main_i 128) (<= main_n 34)) (or (< 34 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15994#(and (or (<= main_i 128) (<= main_n 34)) (or (< 34 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,093 INFO L273 TraceCheckUtils]: 65: Hoare triple {15994#(and (or (<= main_i 128) (<= main_n 34)) (or (< 34 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15995#(and (or (<= 132 main_i) (< 34 main_n)) (or (<= main_i 132) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,094 INFO L273 TraceCheckUtils]: 66: Hoare triple {15995#(and (or (<= 132 main_i) (< 34 main_n)) (or (<= main_i 132) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {15995#(and (or (<= 132 main_i) (< 34 main_n)) (or (<= main_i 132) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:55:58,095 INFO L273 TraceCheckUtils]: 67: Hoare triple {15995#(and (or (<= 132 main_i) (< 34 main_n)) (or (<= main_i 132) (<= main_n 34)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15996#(and (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 34 main_n)) (or (<= main_i 136) (<= main_n 34)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2018-12-18 17:55:58,096 INFO L273 TraceCheckUtils]: 68: Hoare triple {15996#(and (or (= (* 4 main_n) main_i) (and (or (<= (* 4 main_n) main_i) (< 34 main_n)) (or (<= main_i 136) (<= main_n 34)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {15997#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 136) (< 34 main_n))))} is VALID [2018-12-18 17:55:58,097 INFO L273 TraceCheckUtils]: 69: Hoare triple {15997#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 136) (< 34 main_n))))} assume a[i] != 23;i := i + 4; {15998#(and (< 34 main_n) (<= main_i 140))} is VALID [2018-12-18 17:55:58,098 INFO L273 TraceCheckUtils]: 70: Hoare triple {15998#(and (< 34 main_n) (<= main_i 140))} assume !(i <= n * 4); {15961#false} is VALID [2018-12-18 17:55:58,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:55:58,121 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:55:58,121 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:55:58,121 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:55:58,121 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:55:58,121 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:55:58,122 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:55:58,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:55:58,132 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-18 17:55:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:55:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:55:58,173 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:55:58,180 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:55:58,182 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:55:58,190 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:55:58,190 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:55:58,192 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:55:58,192 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_38]. (and (= (store v_main_a_38 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:55:58,192 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:56:00,270 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:56:00,272 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:56:00,278 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:56:00,278 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:56:00,280 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:56:00,281 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 136) 23)) (<= 136 .cse0) (= 23 (select main_a .cse0)) (<= main_i 140))) [2018-12-18 17:56:00,281 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 136 .cse0)) (<= 136 .cse0) (<= main_i 140))) [2018-12-18 17:56:00,328 INFO L273 TraceCheckUtils]: 0: Hoare triple {15960#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {16002#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,328 INFO L273 TraceCheckUtils]: 1: Hoare triple {16002#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16006#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:56:00,329 INFO L273 TraceCheckUtils]: 2: Hoare triple {16006#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {16006#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:56:00,329 INFO L273 TraceCheckUtils]: 3: Hoare triple {16006#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {16013#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,330 INFO L273 TraceCheckUtils]: 4: Hoare triple {16013#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16013#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,331 INFO L273 TraceCheckUtils]: 5: Hoare triple {16013#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:56:00,331 INFO L273 TraceCheckUtils]: 6: Hoare triple {16020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {16020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:56:00,332 INFO L273 TraceCheckUtils]: 7: Hoare triple {16020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {16027#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,333 INFO L273 TraceCheckUtils]: 8: Hoare triple {16027#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16027#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,334 INFO L273 TraceCheckUtils]: 9: Hoare triple {16027#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16034#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,334 INFO L273 TraceCheckUtils]: 10: Hoare triple {16034#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16034#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,335 INFO L273 TraceCheckUtils]: 11: Hoare triple {16034#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16041#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,336 INFO L273 TraceCheckUtils]: 12: Hoare triple {16041#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16041#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,336 INFO L273 TraceCheckUtils]: 13: Hoare triple {16041#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16048#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,337 INFO L273 TraceCheckUtils]: 14: Hoare triple {16048#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16048#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,338 INFO L273 TraceCheckUtils]: 15: Hoare triple {16048#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16055#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,338 INFO L273 TraceCheckUtils]: 16: Hoare triple {16055#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16055#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,339 INFO L273 TraceCheckUtils]: 17: Hoare triple {16055#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16062#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,340 INFO L273 TraceCheckUtils]: 18: Hoare triple {16062#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16062#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,340 INFO L273 TraceCheckUtils]: 19: Hoare triple {16062#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16069#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,341 INFO L273 TraceCheckUtils]: 20: Hoare triple {16069#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16069#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,342 INFO L273 TraceCheckUtils]: 21: Hoare triple {16069#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16076#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,342 INFO L273 TraceCheckUtils]: 22: Hoare triple {16076#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16076#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,343 INFO L273 TraceCheckUtils]: 23: Hoare triple {16076#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16083#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,344 INFO L273 TraceCheckUtils]: 24: Hoare triple {16083#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16083#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,344 INFO L273 TraceCheckUtils]: 25: Hoare triple {16083#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16090#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,345 INFO L273 TraceCheckUtils]: 26: Hoare triple {16090#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16090#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,346 INFO L273 TraceCheckUtils]: 27: Hoare triple {16090#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16097#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,346 INFO L273 TraceCheckUtils]: 28: Hoare triple {16097#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16097#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,347 INFO L273 TraceCheckUtils]: 29: Hoare triple {16097#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16104#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,348 INFO L273 TraceCheckUtils]: 30: Hoare triple {16104#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16104#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,348 INFO L273 TraceCheckUtils]: 31: Hoare triple {16104#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16111#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,349 INFO L273 TraceCheckUtils]: 32: Hoare triple {16111#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16111#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,350 INFO L273 TraceCheckUtils]: 33: Hoare triple {16111#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16118#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,350 INFO L273 TraceCheckUtils]: 34: Hoare triple {16118#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16118#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,351 INFO L273 TraceCheckUtils]: 35: Hoare triple {16118#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16125#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,352 INFO L273 TraceCheckUtils]: 36: Hoare triple {16125#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16125#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,352 INFO L273 TraceCheckUtils]: 37: Hoare triple {16125#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16132#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,353 INFO L273 TraceCheckUtils]: 38: Hoare triple {16132#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16132#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,354 INFO L273 TraceCheckUtils]: 39: Hoare triple {16132#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16139#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:56:00,354 INFO L273 TraceCheckUtils]: 40: Hoare triple {16139#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {16139#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:56:00,355 INFO L273 TraceCheckUtils]: 41: Hoare triple {16139#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {16146#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,356 INFO L273 TraceCheckUtils]: 42: Hoare triple {16146#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16146#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,357 INFO L273 TraceCheckUtils]: 43: Hoare triple {16146#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16153#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,357 INFO L273 TraceCheckUtils]: 44: Hoare triple {16153#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16153#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,358 INFO L273 TraceCheckUtils]: 45: Hoare triple {16153#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16160#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,359 INFO L273 TraceCheckUtils]: 46: Hoare triple {16160#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16160#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,359 INFO L273 TraceCheckUtils]: 47: Hoare triple {16160#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16167#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,360 INFO L273 TraceCheckUtils]: 48: Hoare triple {16167#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16167#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,361 INFO L273 TraceCheckUtils]: 49: Hoare triple {16167#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16174#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,361 INFO L273 TraceCheckUtils]: 50: Hoare triple {16174#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16174#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,362 INFO L273 TraceCheckUtils]: 51: Hoare triple {16174#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16181#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,363 INFO L273 TraceCheckUtils]: 52: Hoare triple {16181#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16181#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,363 INFO L273 TraceCheckUtils]: 53: Hoare triple {16181#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16188#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,364 INFO L273 TraceCheckUtils]: 54: Hoare triple {16188#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16188#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,365 INFO L273 TraceCheckUtils]: 55: Hoare triple {16188#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16195#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,365 INFO L273 TraceCheckUtils]: 56: Hoare triple {16195#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16195#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,366 INFO L273 TraceCheckUtils]: 57: Hoare triple {16195#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16202#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,367 INFO L273 TraceCheckUtils]: 58: Hoare triple {16202#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16202#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,367 INFO L273 TraceCheckUtils]: 59: Hoare triple {16202#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16209#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,368 INFO L273 TraceCheckUtils]: 60: Hoare triple {16209#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16209#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,369 INFO L273 TraceCheckUtils]: 61: Hoare triple {16209#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16216#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,369 INFO L273 TraceCheckUtils]: 62: Hoare triple {16216#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16216#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,370 INFO L273 TraceCheckUtils]: 63: Hoare triple {16216#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16223#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,371 INFO L273 TraceCheckUtils]: 64: Hoare triple {16223#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16223#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,372 INFO L273 TraceCheckUtils]: 65: Hoare triple {16223#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16230#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,372 INFO L273 TraceCheckUtils]: 66: Hoare triple {16230#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16230#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,373 INFO L273 TraceCheckUtils]: 67: Hoare triple {16230#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16237#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,374 INFO L273 TraceCheckUtils]: 68: Hoare triple {16237#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16241#(and (= main_i 136) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:00,374 INFO L273 TraceCheckUtils]: 69: Hoare triple {16241#(and (= main_i 136) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {15998#(and (< 34 main_n) (<= main_i 140))} is VALID [2018-12-18 17:56:00,375 INFO L273 TraceCheckUtils]: 70: Hoare triple {15998#(and (< 34 main_n) (<= main_i 140))} assume !(i <= n * 4); {15961#false} is VALID [2018-12-18 17:56:00,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:56:00,388 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:56:04,055 INFO L273 TraceCheckUtils]: 70: Hoare triple {16248#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {15961#false} is VALID [2018-12-18 17:56:04,056 INFO L273 TraceCheckUtils]: 69: Hoare triple {16252#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {16248#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:56:04,057 INFO L273 TraceCheckUtils]: 68: Hoare triple {16256#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {16252#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:56:04,058 INFO L273 TraceCheckUtils]: 67: Hoare triple {16260#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {16256#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:56:04,058 INFO L273 TraceCheckUtils]: 66: Hoare triple {16260#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {16260#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:56:04,060 INFO L273 TraceCheckUtils]: 65: Hoare triple {16267#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {16260#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:56:04,060 INFO L273 TraceCheckUtils]: 64: Hoare triple {16267#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {16267#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:56:04,061 INFO L273 TraceCheckUtils]: 63: Hoare triple {16274#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {16267#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:56:04,062 INFO L273 TraceCheckUtils]: 62: Hoare triple {16274#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {16274#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:56:04,063 INFO L273 TraceCheckUtils]: 61: Hoare triple {16281#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {16274#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:56:04,063 INFO L273 TraceCheckUtils]: 60: Hoare triple {16281#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {16281#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:56:04,064 INFO L273 TraceCheckUtils]: 59: Hoare triple {16288#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16281#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:56:04,065 INFO L273 TraceCheckUtils]: 58: Hoare triple {16288#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {16288#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,066 INFO L273 TraceCheckUtils]: 57: Hoare triple {16295#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {16288#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,066 INFO L273 TraceCheckUtils]: 56: Hoare triple {16295#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {16295#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:56:04,067 INFO L273 TraceCheckUtils]: 55: Hoare triple {16302#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16295#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:56:04,068 INFO L273 TraceCheckUtils]: 54: Hoare triple {16302#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {16302#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,069 INFO L273 TraceCheckUtils]: 53: Hoare triple {16309#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16302#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,069 INFO L273 TraceCheckUtils]: 52: Hoare triple {16309#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {16309#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,070 INFO L273 TraceCheckUtils]: 51: Hoare triple {16316#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16309#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,071 INFO L273 TraceCheckUtils]: 50: Hoare triple {16316#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {16316#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,072 INFO L273 TraceCheckUtils]: 49: Hoare triple {16323#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {16316#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,073 INFO L273 TraceCheckUtils]: 48: Hoare triple {16323#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {16323#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:56:04,074 INFO L273 TraceCheckUtils]: 47: Hoare triple {16330#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16323#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:56:04,074 INFO L273 TraceCheckUtils]: 46: Hoare triple {16330#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {16330#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,075 INFO L273 TraceCheckUtils]: 45: Hoare triple {16337#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16330#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,076 INFO L273 TraceCheckUtils]: 44: Hoare triple {16337#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {16337#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,077 INFO L273 TraceCheckUtils]: 43: Hoare triple {16344#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {16337#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,077 INFO L273 TraceCheckUtils]: 42: Hoare triple {16344#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {16344#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:56:04,078 INFO L273 TraceCheckUtils]: 41: Hoare triple {16351#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16344#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:56:04,079 INFO L273 TraceCheckUtils]: 40: Hoare triple {16351#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {16351#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,080 INFO L273 TraceCheckUtils]: 39: Hoare triple {16358#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {16351#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,080 INFO L273 TraceCheckUtils]: 38: Hoare triple {16358#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {16358#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:56:04,081 INFO L273 TraceCheckUtils]: 37: Hoare triple {16365#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {16358#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:56:04,082 INFO L273 TraceCheckUtils]: 36: Hoare triple {16365#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {16365#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:56:04,083 INFO L273 TraceCheckUtils]: 35: Hoare triple {16372#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {16365#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:56:04,084 INFO L273 TraceCheckUtils]: 34: Hoare triple {16372#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {16372#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:56:04,085 INFO L273 TraceCheckUtils]: 33: Hoare triple {16379#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {16372#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:56:04,085 INFO L273 TraceCheckUtils]: 32: Hoare triple {16379#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {16379#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:56:04,086 INFO L273 TraceCheckUtils]: 31: Hoare triple {16386#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {16379#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:56:04,087 INFO L273 TraceCheckUtils]: 30: Hoare triple {16386#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {16386#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:56:04,088 INFO L273 TraceCheckUtils]: 29: Hoare triple {16393#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {16386#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:56:04,088 INFO L273 TraceCheckUtils]: 28: Hoare triple {16393#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {16393#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:56:04,089 INFO L273 TraceCheckUtils]: 27: Hoare triple {16400#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16393#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:56:04,090 INFO L273 TraceCheckUtils]: 26: Hoare triple {16400#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {16400#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,091 INFO L273 TraceCheckUtils]: 25: Hoare triple {16407#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16400#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,091 INFO L273 TraceCheckUtils]: 24: Hoare triple {16407#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {16407#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,092 INFO L273 TraceCheckUtils]: 23: Hoare triple {16414#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16407#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,093 INFO L273 TraceCheckUtils]: 22: Hoare triple {16414#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {16414#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,094 INFO L273 TraceCheckUtils]: 21: Hoare triple {16421#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {16414#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,094 INFO L273 TraceCheckUtils]: 20: Hoare triple {16421#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {16421#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:56:04,096 INFO L273 TraceCheckUtils]: 19: Hoare triple {16428#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16421#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:56:04,096 INFO L273 TraceCheckUtils]: 18: Hoare triple {16428#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {16428#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,097 INFO L273 TraceCheckUtils]: 17: Hoare triple {16435#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {16428#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,098 INFO L273 TraceCheckUtils]: 16: Hoare triple {16435#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {16435#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:56:04,099 INFO L273 TraceCheckUtils]: 15: Hoare triple {16442#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {16435#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:56:04,099 INFO L273 TraceCheckUtils]: 14: Hoare triple {16442#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {16442#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:56:04,100 INFO L273 TraceCheckUtils]: 13: Hoare triple {16449#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {16442#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:56:04,101 INFO L273 TraceCheckUtils]: 12: Hoare triple {16449#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {16449#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:56:04,102 INFO L273 TraceCheckUtils]: 11: Hoare triple {16456#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16449#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:56:04,102 INFO L273 TraceCheckUtils]: 10: Hoare triple {16456#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {16456#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,103 INFO L273 TraceCheckUtils]: 9: Hoare triple {16463#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16456#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,104 INFO L273 TraceCheckUtils]: 8: Hoare triple {16463#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {16463#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,105 INFO L273 TraceCheckUtils]: 7: Hoare triple {16470#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {16463#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,105 INFO L273 TraceCheckUtils]: 6: Hoare triple {16470#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {16470#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:56:04,106 INFO L273 TraceCheckUtils]: 5: Hoare triple {16477#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {16470#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:56:04,107 INFO L273 TraceCheckUtils]: 4: Hoare triple {16477#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {16477#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,108 INFO L273 TraceCheckUtils]: 3: Hoare triple {16484#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {16477#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:56:04,109 INFO L273 TraceCheckUtils]: 2: Hoare triple {16484#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {16484#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 17:56:04,110 INFO L273 TraceCheckUtils]: 1: Hoare triple {16491#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {16484#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 17:56:04,110 INFO L273 TraceCheckUtils]: 0: Hoare triple {15960#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {16491#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 17:56:04,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:56:04,147 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:56:04,147 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 110 [2018-12-18 17:56:04,147 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:56:04,148 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 71 [2018-12-18 17:56:04,148 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:56:04,148 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 75 states. [2018-12-18 17:56:04,309 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 141 edges. 141 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:56:04,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 75 states [2018-12-18 17:56:04,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2018-12-18 17:56:04,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1562, Invalid=10870, Unknown=0, NotChecked=0, Total=12432 [2018-12-18 17:56:04,310 INFO L87 Difference]: Start difference. First operand 72 states and 72 transitions. Second operand 75 states. [2018-12-18 17:56:14,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:56:14,656 INFO L93 Difference]: Finished difference Result 76 states and 76 transitions. [2018-12-18 17:56:14,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-12-18 17:56:14,657 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 71 [2018-12-18 17:56:14,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:56:14,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-12-18 17:56:14,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 76 transitions. [2018-12-18 17:56:14,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-12-18 17:56:14,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 76 transitions. [2018-12-18 17:56:14,659 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 39 states and 76 transitions. [2018-12-18 17:56:14,738 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 76 edges. 76 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:56:14,739 INFO L225 Difference]: With dead ends: 76 [2018-12-18 17:56:14,739 INFO L226 Difference]: Without dead ends: 75 [2018-12-18 17:56:14,740 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2808 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=1562, Invalid=10870, Unknown=0, NotChecked=0, Total=12432 [2018-12-18 17:56:14,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-12-18 17:56:14,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2018-12-18 17:56:14,824 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:56:14,824 INFO L82 GeneralOperation]: Start isEquivalent. First operand 75 states. Second operand 74 states. [2018-12-18 17:56:14,824 INFO L74 IsIncluded]: Start isIncluded. First operand 75 states. Second operand 74 states. [2018-12-18 17:56:14,824 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 74 states. [2018-12-18 17:56:14,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:56:14,825 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2018-12-18 17:56:14,825 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 75 transitions. [2018-12-18 17:56:14,826 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:56:14,826 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:56:14,826 INFO L74 IsIncluded]: Start isIncluded. First operand 74 states. Second operand 75 states. [2018-12-18 17:56:14,826 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 75 states. [2018-12-18 17:56:14,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:56:14,827 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2018-12-18 17:56:14,827 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 75 transitions. [2018-12-18 17:56:14,827 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:56:14,827 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:56:14,827 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:56:14,828 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:56:14,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-12-18 17:56:14,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 74 transitions. [2018-12-18 17:56:14,829 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 74 transitions. Word has length 71 [2018-12-18 17:56:14,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:56:14,829 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 74 transitions. [2018-12-18 17:56:14,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has 75 states. [2018-12-18 17:56:14,829 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 74 transitions. [2018-12-18 17:56:14,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-12-18 17:56:14,830 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:56:14,830 INFO L402 BasicCegarLoop]: trace histogram [36, 35, 1, 1] [2018-12-18 17:56:14,830 INFO L423 AbstractCegarLoop]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:56:14,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:56:14,830 INFO L82 PathProgramCache]: Analyzing trace with hash -714784666, now seen corresponding path program 35 times [2018-12-18 17:56:14,830 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:56:14,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:56:14,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:56:14,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:56:14,831 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:56:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:56:16,772 INFO L273 TraceCheckUtils]: 0: Hoare triple {16867#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {16869#(and (or (<= main_i 0) (<= main_n 35)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2018-12-18 17:56:16,773 INFO L273 TraceCheckUtils]: 1: Hoare triple {16869#(and (or (<= main_i 0) (<= main_n 35)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume a[i] != 23;i := i + 4; {16870#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,774 INFO L273 TraceCheckUtils]: 2: Hoare triple {16870#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 35)))} assume i <= n * 4; {16870#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,775 INFO L273 TraceCheckUtils]: 3: Hoare triple {16870#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16871#(and (or (< 35 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,776 INFO L273 TraceCheckUtils]: 4: Hoare triple {16871#(and (or (< 35 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 35)))} assume i <= n * 4; {16871#(and (or (< 35 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,777 INFO L273 TraceCheckUtils]: 5: Hoare triple {16871#(and (or (< 35 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16872#(and (or (<= main_n 35) (<= main_i 12)) (or (< 35 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:16,778 INFO L273 TraceCheckUtils]: 6: Hoare triple {16872#(and (or (<= main_n 35) (<= main_i 12)) (or (< 35 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16872#(and (or (<= main_n 35) (<= main_i 12)) (or (< 35 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:16,780 INFO L273 TraceCheckUtils]: 7: Hoare triple {16872#(and (or (<= main_n 35) (<= main_i 12)) (or (< 35 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16873#(and (or (<= main_i 16) (<= main_n 35)) (or (< 35 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:16,781 INFO L273 TraceCheckUtils]: 8: Hoare triple {16873#(and (or (<= main_i 16) (<= main_n 35)) (or (< 35 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16873#(and (or (<= main_i 16) (<= main_n 35)) (or (< 35 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:16,782 INFO L273 TraceCheckUtils]: 9: Hoare triple {16873#(and (or (<= main_i 16) (<= main_n 35)) (or (< 35 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16874#(and (or (< 35 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,783 INFO L273 TraceCheckUtils]: 10: Hoare triple {16874#(and (or (< 35 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 35)))} assume i <= n * 4; {16874#(and (or (< 35 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,784 INFO L273 TraceCheckUtils]: 11: Hoare triple {16874#(and (or (< 35 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16875#(and (or (<= main_i 24) (<= main_n 35)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2018-12-18 17:56:16,785 INFO L273 TraceCheckUtils]: 12: Hoare triple {16875#(and (or (<= main_i 24) (<= main_n 35)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume i <= n * 4; {16875#(and (or (<= main_i 24) (<= main_n 35)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2018-12-18 17:56:16,786 INFO L273 TraceCheckUtils]: 13: Hoare triple {16875#(and (or (<= main_i 24) (<= main_n 35)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume a[i] != 23;i := i + 4; {16876#(and (or (<= main_n 35) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2018-12-18 17:56:16,787 INFO L273 TraceCheckUtils]: 14: Hoare triple {16876#(and (or (<= main_n 35) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume i <= n * 4; {16876#(and (or (<= main_n 35) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2018-12-18 17:56:16,788 INFO L273 TraceCheckUtils]: 15: Hoare triple {16876#(and (or (<= main_n 35) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume a[i] != 23;i := i + 4; {16877#(and (or (< 35 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,789 INFO L273 TraceCheckUtils]: 16: Hoare triple {16877#(and (or (< 35 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 35)))} assume i <= n * 4; {16877#(and (or (< 35 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,790 INFO L273 TraceCheckUtils]: 17: Hoare triple {16877#(and (or (< 35 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16878#(and (or (<= main_i 36) (<= main_n 35)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 35 main_n)))} is VALID [2018-12-18 17:56:16,790 INFO L273 TraceCheckUtils]: 18: Hoare triple {16878#(and (or (<= main_i 36) (<= main_n 35)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 35 main_n)))} assume i <= n * 4; {16878#(and (or (<= main_i 36) (<= main_n 35)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 35 main_n)))} is VALID [2018-12-18 17:56:16,792 INFO L273 TraceCheckUtils]: 19: Hoare triple {16878#(and (or (<= main_i 36) (<= main_n 35)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 35 main_n)))} assume a[i] != 23;i := i + 4; {16879#(and (or (< 35 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,792 INFO L273 TraceCheckUtils]: 20: Hoare triple {16879#(and (or (< 35 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 35)))} assume i <= n * 4; {16879#(and (or (< 35 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,794 INFO L273 TraceCheckUtils]: 21: Hoare triple {16879#(and (or (< 35 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 40) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16880#(and (or (<= main_n 35) (<= main_i 44)) (or (< 35 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:16,794 INFO L273 TraceCheckUtils]: 22: Hoare triple {16880#(and (or (<= main_n 35) (<= main_i 44)) (or (< 35 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16880#(and (or (<= main_n 35) (<= main_i 44)) (or (< 35 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:16,795 INFO L273 TraceCheckUtils]: 23: Hoare triple {16880#(and (or (<= main_n 35) (<= main_i 44)) (or (< 35 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16881#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_n 35) (<= main_i 48)))} is VALID [2018-12-18 17:56:16,796 INFO L273 TraceCheckUtils]: 24: Hoare triple {16881#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_n 35) (<= main_i 48)))} assume i <= n * 4; {16881#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_n 35) (<= main_i 48)))} is VALID [2018-12-18 17:56:16,797 INFO L273 TraceCheckUtils]: 25: Hoare triple {16881#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_n 35) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {16882#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 52) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,798 INFO L273 TraceCheckUtils]: 26: Hoare triple {16882#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 52) (<= main_n 35)))} assume i <= n * 4; {16882#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 52) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,799 INFO L273 TraceCheckUtils]: 27: Hoare triple {16882#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 52) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16883#(and (or (< 35 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,800 INFO L273 TraceCheckUtils]: 28: Hoare triple {16883#(and (or (< 35 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 35)))} assume i <= n * 4; {16883#(and (or (< 35 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,801 INFO L273 TraceCheckUtils]: 29: Hoare triple {16883#(and (or (< 35 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16884#(and (or (<= main_i 60) (<= main_n 35)) (or (< 35 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:16,802 INFO L273 TraceCheckUtils]: 30: Hoare triple {16884#(and (or (<= main_i 60) (<= main_n 35)) (or (< 35 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16884#(and (or (<= main_i 60) (<= main_n 35)) (or (< 35 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:16,803 INFO L273 TraceCheckUtils]: 31: Hoare triple {16884#(and (or (<= main_i 60) (<= main_n 35)) (or (< 35 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16885#(and (or (< 35 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 64) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,804 INFO L273 TraceCheckUtils]: 32: Hoare triple {16885#(and (or (< 35 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 64) (<= main_n 35)))} assume i <= n * 4; {16885#(and (or (< 35 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 64) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,805 INFO L273 TraceCheckUtils]: 33: Hoare triple {16885#(and (or (< 35 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 64) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16886#(and (or (<= main_n 35) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2018-12-18 17:56:16,806 INFO L273 TraceCheckUtils]: 34: Hoare triple {16886#(and (or (<= main_n 35) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume i <= n * 4; {16886#(and (or (<= main_n 35) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2018-12-18 17:56:16,807 INFO L273 TraceCheckUtils]: 35: Hoare triple {16886#(and (or (<= main_n 35) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume a[i] != 23;i := i + 4; {16887#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 72) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,808 INFO L273 TraceCheckUtils]: 36: Hoare triple {16887#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 72) (<= main_n 35)))} assume i <= n * 4; {16887#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 72) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,809 INFO L273 TraceCheckUtils]: 37: Hoare triple {16887#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 72) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16888#(and (or (<= main_i 76) (<= main_n 35)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2018-12-18 17:56:16,809 INFO L273 TraceCheckUtils]: 38: Hoare triple {16888#(and (or (<= main_i 76) (<= main_n 35)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume i <= n * 4; {16888#(and (or (<= main_i 76) (<= main_n 35)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} is VALID [2018-12-18 17:56:16,811 INFO L273 TraceCheckUtils]: 39: Hoare triple {16888#(and (or (<= main_i 76) (<= main_n 35)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)))} assume a[i] != 23;i := i + 4; {16889#(and (or (<= main_n 35) (<= main_i 80)) (or (< 35 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:16,811 INFO L273 TraceCheckUtils]: 40: Hoare triple {16889#(and (or (<= main_n 35) (<= main_i 80)) (or (< 35 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16889#(and (or (<= main_n 35) (<= main_i 80)) (or (< 35 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:16,812 INFO L273 TraceCheckUtils]: 41: Hoare triple {16889#(and (or (<= main_n 35) (<= main_i 80)) (or (< 35 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16890#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 35 main_n)) (or (<= main_i 84) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,813 INFO L273 TraceCheckUtils]: 42: Hoare triple {16890#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 35 main_n)) (or (<= main_i 84) (<= main_n 35)))} assume i <= n * 4; {16890#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 35 main_n)) (or (<= main_i 84) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,814 INFO L273 TraceCheckUtils]: 43: Hoare triple {16890#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 35 main_n)) (or (<= main_i 84) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16891#(and (or (<= main_i 88) (<= main_n 35)) (or (< 35 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:16,815 INFO L273 TraceCheckUtils]: 44: Hoare triple {16891#(and (or (<= main_i 88) (<= main_n 35)) (or (< 35 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16891#(and (or (<= main_i 88) (<= main_n 35)) (or (< 35 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:16,816 INFO L273 TraceCheckUtils]: 45: Hoare triple {16891#(and (or (<= main_i 88) (<= main_n 35)) (or (< 35 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16892#(and (or (<= main_i 92) (<= main_n 35)) (or (< 35 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:16,817 INFO L273 TraceCheckUtils]: 46: Hoare triple {16892#(and (or (<= main_i 92) (<= main_n 35)) (or (< 35 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16892#(and (or (<= main_i 92) (<= main_n 35)) (or (< 35 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:16,818 INFO L273 TraceCheckUtils]: 47: Hoare triple {16892#(and (or (<= main_i 92) (<= main_n 35)) (or (< 35 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16893#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 96) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,819 INFO L273 TraceCheckUtils]: 48: Hoare triple {16893#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 96) (<= main_n 35)))} assume i <= n * 4; {16893#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 96) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,820 INFO L273 TraceCheckUtils]: 49: Hoare triple {16893#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 96) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16894#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 100) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,821 INFO L273 TraceCheckUtils]: 50: Hoare triple {16894#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 100) (<= main_n 35)))} assume i <= n * 4; {16894#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 100) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,822 INFO L273 TraceCheckUtils]: 51: Hoare triple {16894#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 100) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16895#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 104) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,823 INFO L273 TraceCheckUtils]: 52: Hoare triple {16895#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 104) (<= main_n 35)))} assume i <= n * 4; {16895#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 104) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,824 INFO L273 TraceCheckUtils]: 53: Hoare triple {16895#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 104) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16896#(and (or (< 35 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 35) (<= main_i 108)))} is VALID [2018-12-18 17:56:16,825 INFO L273 TraceCheckUtils]: 54: Hoare triple {16896#(and (or (< 35 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 35) (<= main_i 108)))} assume i <= n * 4; {16896#(and (or (< 35 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 35) (<= main_i 108)))} is VALID [2018-12-18 17:56:16,826 INFO L273 TraceCheckUtils]: 55: Hoare triple {16896#(and (or (< 35 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 35) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {16897#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 35) (<= main_i 112)))} is VALID [2018-12-18 17:56:16,826 INFO L273 TraceCheckUtils]: 56: Hoare triple {16897#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 35) (<= main_i 112)))} assume i <= n * 4; {16897#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 35) (<= main_i 112)))} is VALID [2018-12-18 17:56:16,828 INFO L273 TraceCheckUtils]: 57: Hoare triple {16897#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 35) (<= main_i 112)))} assume a[i] != 23;i := i + 4; {16898#(and (or (< 35 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,828 INFO L273 TraceCheckUtils]: 58: Hoare triple {16898#(and (or (< 35 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 35)))} assume i <= n * 4; {16898#(and (or (< 35 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,829 INFO L273 TraceCheckUtils]: 59: Hoare triple {16898#(and (or (< 35 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16899#(and (or (< 35 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,830 INFO L273 TraceCheckUtils]: 60: Hoare triple {16899#(and (or (< 35 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 35)))} assume i <= n * 4; {16899#(and (or (< 35 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,831 INFO L273 TraceCheckUtils]: 61: Hoare triple {16899#(and (or (< 35 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16900#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 124) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,832 INFO L273 TraceCheckUtils]: 62: Hoare triple {16900#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 124) (<= main_n 35)))} assume i <= n * 4; {16900#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 124) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,833 INFO L273 TraceCheckUtils]: 63: Hoare triple {16900#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 35 main_n)) (or (<= main_i 124) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16901#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,834 INFO L273 TraceCheckUtils]: 64: Hoare triple {16901#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 35)))} assume i <= n * 4; {16901#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,835 INFO L273 TraceCheckUtils]: 65: Hoare triple {16901#(and (or (< 35 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16902#(and (or (<= main_i 132) (<= main_n 35)) (or (< 35 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:16,836 INFO L273 TraceCheckUtils]: 66: Hoare triple {16902#(and (or (<= main_i 132) (<= main_n 35)) (or (< 35 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {16902#(and (or (<= main_i 132) (<= main_n 35)) (or (< 35 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:16,837 INFO L273 TraceCheckUtils]: 67: Hoare triple {16902#(and (or (<= main_i 132) (<= main_n 35)) (or (< 35 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {16903#(and (or (< 35 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,838 INFO L273 TraceCheckUtils]: 68: Hoare triple {16903#(and (or (< 35 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 35)))} assume i <= n * 4; {16903#(and (or (< 35 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 35)))} is VALID [2018-12-18 17:56:16,839 INFO L273 TraceCheckUtils]: 69: Hoare triple {16903#(and (or (< 35 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 35)))} assume a[i] != 23;i := i + 4; {16904#(and (or (<= main_n 35) (<= main_i 140)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 35 main_n)))} is VALID [2018-12-18 17:56:16,840 INFO L273 TraceCheckUtils]: 70: Hoare triple {16904#(and (or (<= main_n 35) (<= main_i 140)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 35 main_n)))} assume i <= n * 4; {16905#(and (or (< 35 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 140))} is VALID [2018-12-18 17:56:16,841 INFO L273 TraceCheckUtils]: 71: Hoare triple {16905#(and (or (< 35 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 140))} assume a[i] != 23;i := i + 4; {16906#(and (<= 36 main_n) (<= main_i 144))} is VALID [2018-12-18 17:56:16,842 INFO L273 TraceCheckUtils]: 72: Hoare triple {16906#(and (<= 36 main_n) (<= main_i 144))} assume !(i <= n * 4); {16868#false} is VALID [2018-12-18 17:56:16,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 1260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:56:16,867 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:56:16,867 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:56:16,867 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:56:16,867 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:56:16,867 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:56:16,867 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:56:16,876 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-18 17:56:16,876 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-18 17:56:16,926 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 36 check-sat command(s) [2018-12-18 17:56:16,926 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:56:16,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:56:16,956 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:56:16,964 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:56:16,966 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:56:16,974 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:56:16,974 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:56:16,976 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:56:16,976 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_39]. (and (= (store v_main_a_39 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:56:16,976 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:56:19,199 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:56:19,203 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:56:19,209 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:56:19,209 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:56:19,211 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:56:19,212 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 140 .cse0) (= 23 (select main_a .cse0)) (not (= (select main_a 140) 23)) (<= main_i 144))) [2018-12-18 17:56:19,212 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 140 .cse0) (not (= 140 .cse0)) (<= main_i 144))) [2018-12-18 17:56:19,258 INFO L273 TraceCheckUtils]: 0: Hoare triple {16867#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {16910#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,260 INFO L273 TraceCheckUtils]: 1: Hoare triple {16910#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16914#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:56:19,261 INFO L273 TraceCheckUtils]: 2: Hoare triple {16914#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {16914#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:56:19,261 INFO L273 TraceCheckUtils]: 3: Hoare triple {16914#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {16921#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,262 INFO L273 TraceCheckUtils]: 4: Hoare triple {16921#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16921#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,263 INFO L273 TraceCheckUtils]: 5: Hoare triple {16921#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16928#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:56:19,264 INFO L273 TraceCheckUtils]: 6: Hoare triple {16928#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {16928#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:56:19,264 INFO L273 TraceCheckUtils]: 7: Hoare triple {16928#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {16935#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,265 INFO L273 TraceCheckUtils]: 8: Hoare triple {16935#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16935#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,266 INFO L273 TraceCheckUtils]: 9: Hoare triple {16935#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16942#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,266 INFO L273 TraceCheckUtils]: 10: Hoare triple {16942#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16942#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,267 INFO L273 TraceCheckUtils]: 11: Hoare triple {16942#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16949#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,268 INFO L273 TraceCheckUtils]: 12: Hoare triple {16949#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16949#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,269 INFO L273 TraceCheckUtils]: 13: Hoare triple {16949#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16956#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,269 INFO L273 TraceCheckUtils]: 14: Hoare triple {16956#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16956#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,270 INFO L273 TraceCheckUtils]: 15: Hoare triple {16956#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16963#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,271 INFO L273 TraceCheckUtils]: 16: Hoare triple {16963#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16963#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,271 INFO L273 TraceCheckUtils]: 17: Hoare triple {16963#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16970#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,272 INFO L273 TraceCheckUtils]: 18: Hoare triple {16970#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16970#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,273 INFO L273 TraceCheckUtils]: 19: Hoare triple {16970#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16977#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,274 INFO L273 TraceCheckUtils]: 20: Hoare triple {16977#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16977#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,274 INFO L273 TraceCheckUtils]: 21: Hoare triple {16977#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16984#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,275 INFO L273 TraceCheckUtils]: 22: Hoare triple {16984#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16984#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,276 INFO L273 TraceCheckUtils]: 23: Hoare triple {16984#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16991#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,276 INFO L273 TraceCheckUtils]: 24: Hoare triple {16991#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16991#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,277 INFO L273 TraceCheckUtils]: 25: Hoare triple {16991#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {16998#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,278 INFO L273 TraceCheckUtils]: 26: Hoare triple {16998#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {16998#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,279 INFO L273 TraceCheckUtils]: 27: Hoare triple {16998#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17005#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,279 INFO L273 TraceCheckUtils]: 28: Hoare triple {17005#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17005#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,280 INFO L273 TraceCheckUtils]: 29: Hoare triple {17005#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17012#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,281 INFO L273 TraceCheckUtils]: 30: Hoare triple {17012#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17012#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,281 INFO L273 TraceCheckUtils]: 31: Hoare triple {17012#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17019#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,282 INFO L273 TraceCheckUtils]: 32: Hoare triple {17019#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17019#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,283 INFO L273 TraceCheckUtils]: 33: Hoare triple {17019#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17026#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,283 INFO L273 TraceCheckUtils]: 34: Hoare triple {17026#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17026#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,284 INFO L273 TraceCheckUtils]: 35: Hoare triple {17026#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17033#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,285 INFO L273 TraceCheckUtils]: 36: Hoare triple {17033#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17033#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,286 INFO L273 TraceCheckUtils]: 37: Hoare triple {17033#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17040#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,286 INFO L273 TraceCheckUtils]: 38: Hoare triple {17040#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17040#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,287 INFO L273 TraceCheckUtils]: 39: Hoare triple {17040#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17047#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:56:19,288 INFO L273 TraceCheckUtils]: 40: Hoare triple {17047#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {17047#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:56:19,288 INFO L273 TraceCheckUtils]: 41: Hoare triple {17047#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {17054#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,289 INFO L273 TraceCheckUtils]: 42: Hoare triple {17054#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17054#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,290 INFO L273 TraceCheckUtils]: 43: Hoare triple {17054#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17061#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,291 INFO L273 TraceCheckUtils]: 44: Hoare triple {17061#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17061#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,291 INFO L273 TraceCheckUtils]: 45: Hoare triple {17061#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17068#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,292 INFO L273 TraceCheckUtils]: 46: Hoare triple {17068#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17068#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,293 INFO L273 TraceCheckUtils]: 47: Hoare triple {17068#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17075#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,293 INFO L273 TraceCheckUtils]: 48: Hoare triple {17075#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17075#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,294 INFO L273 TraceCheckUtils]: 49: Hoare triple {17075#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17082#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,295 INFO L273 TraceCheckUtils]: 50: Hoare triple {17082#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17082#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,295 INFO L273 TraceCheckUtils]: 51: Hoare triple {17082#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17089#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,296 INFO L273 TraceCheckUtils]: 52: Hoare triple {17089#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17089#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,297 INFO L273 TraceCheckUtils]: 53: Hoare triple {17089#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17096#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,297 INFO L273 TraceCheckUtils]: 54: Hoare triple {17096#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17096#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,298 INFO L273 TraceCheckUtils]: 55: Hoare triple {17096#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17103#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,299 INFO L273 TraceCheckUtils]: 56: Hoare triple {17103#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17103#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,300 INFO L273 TraceCheckUtils]: 57: Hoare triple {17103#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17110#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,300 INFO L273 TraceCheckUtils]: 58: Hoare triple {17110#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17110#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,301 INFO L273 TraceCheckUtils]: 59: Hoare triple {17110#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17117#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,302 INFO L273 TraceCheckUtils]: 60: Hoare triple {17117#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17117#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,302 INFO L273 TraceCheckUtils]: 61: Hoare triple {17117#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17124#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,303 INFO L273 TraceCheckUtils]: 62: Hoare triple {17124#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17124#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,304 INFO L273 TraceCheckUtils]: 63: Hoare triple {17124#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17131#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,305 INFO L273 TraceCheckUtils]: 64: Hoare triple {17131#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17131#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,305 INFO L273 TraceCheckUtils]: 65: Hoare triple {17131#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17138#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,306 INFO L273 TraceCheckUtils]: 66: Hoare triple {17138#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17138#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,307 INFO L273 TraceCheckUtils]: 67: Hoare triple {17138#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17145#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,307 INFO L273 TraceCheckUtils]: 68: Hoare triple {17145#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17145#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:19,308 INFO L273 TraceCheckUtils]: 69: Hoare triple {17145#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17152#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 17:56:19,309 INFO L273 TraceCheckUtils]: 70: Hoare triple {17152#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {17156#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 17:56:19,310 INFO L273 TraceCheckUtils]: 71: Hoare triple {17156#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {16906#(and (<= 36 main_n) (<= main_i 144))} is VALID [2018-12-18 17:56:19,311 INFO L273 TraceCheckUtils]: 72: Hoare triple {16906#(and (<= 36 main_n) (<= main_i 144))} assume !(i <= n * 4); {16868#false} is VALID [2018-12-18 17:56:19,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 1260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:56:19,324 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:56:23,146 INFO L273 TraceCheckUtils]: 72: Hoare triple {17163#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {16868#false} is VALID [2018-12-18 17:56:23,146 INFO L273 TraceCheckUtils]: 71: Hoare triple {17167#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {17163#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:56:23,147 INFO L273 TraceCheckUtils]: 70: Hoare triple {17171#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {17167#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:56:23,148 INFO L273 TraceCheckUtils]: 69: Hoare triple {17175#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {17171#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:56:23,148 INFO L273 TraceCheckUtils]: 68: Hoare triple {17175#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {17175#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:56:23,149 INFO L273 TraceCheckUtils]: 67: Hoare triple {17182#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {17175#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:56:23,149 INFO L273 TraceCheckUtils]: 66: Hoare triple {17182#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {17182#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:56:23,150 INFO L273 TraceCheckUtils]: 65: Hoare triple {17189#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {17182#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:56:23,150 INFO L273 TraceCheckUtils]: 64: Hoare triple {17189#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {17189#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:56:23,151 INFO L273 TraceCheckUtils]: 63: Hoare triple {17196#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {17189#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:56:23,152 INFO L273 TraceCheckUtils]: 62: Hoare triple {17196#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {17196#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:56:23,153 INFO L273 TraceCheckUtils]: 61: Hoare triple {17203#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17196#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:56:23,154 INFO L273 TraceCheckUtils]: 60: Hoare triple {17203#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {17203#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,155 INFO L273 TraceCheckUtils]: 59: Hoare triple {17210#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {17203#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,155 INFO L273 TraceCheckUtils]: 58: Hoare triple {17210#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {17210#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:56:23,156 INFO L273 TraceCheckUtils]: 57: Hoare triple {17217#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17210#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:56:23,157 INFO L273 TraceCheckUtils]: 56: Hoare triple {17217#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {17217#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,158 INFO L273 TraceCheckUtils]: 55: Hoare triple {17224#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17217#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,159 INFO L273 TraceCheckUtils]: 54: Hoare triple {17224#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {17224#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,160 INFO L273 TraceCheckUtils]: 53: Hoare triple {17231#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17224#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,160 INFO L273 TraceCheckUtils]: 52: Hoare triple {17231#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {17231#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,161 INFO L273 TraceCheckUtils]: 51: Hoare triple {17238#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {17231#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,162 INFO L273 TraceCheckUtils]: 50: Hoare triple {17238#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {17238#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:56:23,163 INFO L273 TraceCheckUtils]: 49: Hoare triple {17245#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17238#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:56:23,163 INFO L273 TraceCheckUtils]: 48: Hoare triple {17245#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {17245#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,164 INFO L273 TraceCheckUtils]: 47: Hoare triple {17252#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17245#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,165 INFO L273 TraceCheckUtils]: 46: Hoare triple {17252#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {17252#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,166 INFO L273 TraceCheckUtils]: 45: Hoare triple {17259#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {17252#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,167 INFO L273 TraceCheckUtils]: 44: Hoare triple {17259#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {17259#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:56:23,168 INFO L273 TraceCheckUtils]: 43: Hoare triple {17266#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17259#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:56:23,168 INFO L273 TraceCheckUtils]: 42: Hoare triple {17266#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {17266#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,169 INFO L273 TraceCheckUtils]: 41: Hoare triple {17273#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {17266#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,170 INFO L273 TraceCheckUtils]: 40: Hoare triple {17273#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {17273#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:56:23,171 INFO L273 TraceCheckUtils]: 39: Hoare triple {17280#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {17273#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:56:23,171 INFO L273 TraceCheckUtils]: 38: Hoare triple {17280#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {17280#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:56:23,173 INFO L273 TraceCheckUtils]: 37: Hoare triple {17287#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {17280#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:56:23,173 INFO L273 TraceCheckUtils]: 36: Hoare triple {17287#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {17287#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:56:23,174 INFO L273 TraceCheckUtils]: 35: Hoare triple {17294#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {17287#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:56:23,175 INFO L273 TraceCheckUtils]: 34: Hoare triple {17294#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {17294#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:56:23,176 INFO L273 TraceCheckUtils]: 33: Hoare triple {17301#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {17294#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:56:23,176 INFO L273 TraceCheckUtils]: 32: Hoare triple {17301#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {17301#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:56:23,177 INFO L273 TraceCheckUtils]: 31: Hoare triple {17308#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {17301#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:56:23,178 INFO L273 TraceCheckUtils]: 30: Hoare triple {17308#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {17308#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:56:23,179 INFO L273 TraceCheckUtils]: 29: Hoare triple {17315#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17308#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:56:23,179 INFO L273 TraceCheckUtils]: 28: Hoare triple {17315#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {17315#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,180 INFO L273 TraceCheckUtils]: 27: Hoare triple {17322#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17315#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,181 INFO L273 TraceCheckUtils]: 26: Hoare triple {17322#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {17322#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,182 INFO L273 TraceCheckUtils]: 25: Hoare triple {17329#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17322#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,183 INFO L273 TraceCheckUtils]: 24: Hoare triple {17329#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {17329#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,184 INFO L273 TraceCheckUtils]: 23: Hoare triple {17336#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {17329#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,184 INFO L273 TraceCheckUtils]: 22: Hoare triple {17336#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {17336#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:56:23,185 INFO L273 TraceCheckUtils]: 21: Hoare triple {17343#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17336#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:56:23,186 INFO L273 TraceCheckUtils]: 20: Hoare triple {17343#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {17343#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,187 INFO L273 TraceCheckUtils]: 19: Hoare triple {17350#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {17343#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,188 INFO L273 TraceCheckUtils]: 18: Hoare triple {17350#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {17350#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:56:23,189 INFO L273 TraceCheckUtils]: 17: Hoare triple {17357#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {17350#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:56:23,189 INFO L273 TraceCheckUtils]: 16: Hoare triple {17357#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {17357#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:56:23,190 INFO L273 TraceCheckUtils]: 15: Hoare triple {17364#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {17357#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:56:23,191 INFO L273 TraceCheckUtils]: 14: Hoare triple {17364#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {17364#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:56:23,192 INFO L273 TraceCheckUtils]: 13: Hoare triple {17371#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17364#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:56:23,193 INFO L273 TraceCheckUtils]: 12: Hoare triple {17371#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {17371#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,194 INFO L273 TraceCheckUtils]: 11: Hoare triple {17378#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17371#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,194 INFO L273 TraceCheckUtils]: 10: Hoare triple {17378#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {17378#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,195 INFO L273 TraceCheckUtils]: 9: Hoare triple {17385#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {17378#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,196 INFO L273 TraceCheckUtils]: 8: Hoare triple {17385#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {17385#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:56:23,197 INFO L273 TraceCheckUtils]: 7: Hoare triple {17392#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {17385#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:56:23,198 INFO L273 TraceCheckUtils]: 6: Hoare triple {17392#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {17392#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,199 INFO L273 TraceCheckUtils]: 5: Hoare triple {17399#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {17392#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:56:23,199 INFO L273 TraceCheckUtils]: 4: Hoare triple {17399#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {17399#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 17:56:23,200 INFO L273 TraceCheckUtils]: 3: Hoare triple {17406#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {17399#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 17:56:23,201 INFO L273 TraceCheckUtils]: 2: Hoare triple {17406#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {17406#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 17:56:23,202 INFO L273 TraceCheckUtils]: 1: Hoare triple {17413#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {17406#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 17:56:23,203 INFO L273 TraceCheckUtils]: 0: Hoare triple {16867#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {17413#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 17:56:23,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 1260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:56:23,241 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:56:23,242 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 113 [2018-12-18 17:56:23,242 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:56:23,242 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 73 [2018-12-18 17:56:23,242 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:56:23,242 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 77 states. [2018-12-18 17:56:23,417 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 145 edges. 145 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:56:23,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 77 states [2018-12-18 17:56:23,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2018-12-18 17:56:23,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1642, Invalid=11468, Unknown=0, NotChecked=0, Total=13110 [2018-12-18 17:56:23,419 INFO L87 Difference]: Start difference. First operand 74 states and 74 transitions. Second operand 77 states. [2018-12-18 17:56:33,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:56:33,275 INFO L93 Difference]: Finished difference Result 78 states and 78 transitions. [2018-12-18 17:56:33,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-12-18 17:56:33,275 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 73 [2018-12-18 17:56:33,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:56:33,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-12-18 17:56:33,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 78 transitions. [2018-12-18 17:56:33,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-12-18 17:56:33,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 78 transitions. [2018-12-18 17:56:33,278 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 40 states and 78 transitions. [2018-12-18 17:56:33,359 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 78 edges. 78 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:56:33,360 INFO L225 Difference]: With dead ends: 78 [2018-12-18 17:56:33,360 INFO L226 Difference]: Without dead ends: 77 [2018-12-18 17:56:33,361 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2960 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=1642, Invalid=11468, Unknown=0, NotChecked=0, Total=13110 [2018-12-18 17:56:33,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-12-18 17:56:33,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2018-12-18 17:56:33,429 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:56:33,429 INFO L82 GeneralOperation]: Start isEquivalent. First operand 77 states. Second operand 76 states. [2018-12-18 17:56:33,429 INFO L74 IsIncluded]: Start isIncluded. First operand 77 states. Second operand 76 states. [2018-12-18 17:56:33,430 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 76 states. [2018-12-18 17:56:33,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:56:33,431 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2018-12-18 17:56:33,431 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2018-12-18 17:56:33,431 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:56:33,432 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:56:33,432 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 77 states. [2018-12-18 17:56:33,432 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 77 states. [2018-12-18 17:56:33,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:56:33,432 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2018-12-18 17:56:33,433 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2018-12-18 17:56:33,433 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:56:33,433 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:56:33,433 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:56:33,433 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:56:33,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-12-18 17:56:33,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2018-12-18 17:56:33,434 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 73 [2018-12-18 17:56:33,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:56:33,434 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2018-12-18 17:56:33,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has 77 states. [2018-12-18 17:56:33,434 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2018-12-18 17:56:33,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-12-18 17:56:33,435 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:56:33,435 INFO L402 BasicCegarLoop]: trace histogram [37, 36, 1, 1] [2018-12-18 17:56:33,435 INFO L423 AbstractCegarLoop]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:56:33,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:56:33,435 INFO L82 PathProgramCache]: Analyzing trace with hash 286704424, now seen corresponding path program 36 times [2018-12-18 17:56:33,435 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:56:33,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:56:33,436 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:56:33,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:56:33,436 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:56:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:56:35,394 INFO L273 TraceCheckUtils]: 0: Hoare triple {17799#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {17801#(and (or (<= main_i 0) (<= main_n 36)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,395 INFO L273 TraceCheckUtils]: 1: Hoare triple {17801#(and (or (<= main_i 0) (<= main_n 36)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17802#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,396 INFO L273 TraceCheckUtils]: 2: Hoare triple {17802#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 36)))} assume i <= n * 4; {17802#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,397 INFO L273 TraceCheckUtils]: 3: Hoare triple {17802#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17803#(and (or (<= main_i 8) (<= main_n 36)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,397 INFO L273 TraceCheckUtils]: 4: Hoare triple {17803#(and (or (<= main_i 8) (<= main_n 36)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17803#(and (or (<= main_i 8) (<= main_n 36)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,398 INFO L273 TraceCheckUtils]: 5: Hoare triple {17803#(and (or (<= main_i 8) (<= main_n 36)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17804#(and (or (<= main_n 36) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,399 INFO L273 TraceCheckUtils]: 6: Hoare triple {17804#(and (or (<= main_n 36) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17804#(and (or (<= main_n 36) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,400 INFO L273 TraceCheckUtils]: 7: Hoare triple {17804#(and (or (<= main_n 36) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17805#(and (or (<= main_i 16) (<= main_n 36)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,401 INFO L273 TraceCheckUtils]: 8: Hoare triple {17805#(and (or (<= main_i 16) (<= main_n 36)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17805#(and (or (<= main_i 16) (<= main_n 36)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,402 INFO L273 TraceCheckUtils]: 9: Hoare triple {17805#(and (or (<= main_i 16) (<= main_n 36)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17806#(and (or (< 36 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,403 INFO L273 TraceCheckUtils]: 10: Hoare triple {17806#(and (or (< 36 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 36)))} assume i <= n * 4; {17806#(and (or (< 36 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,404 INFO L273 TraceCheckUtils]: 11: Hoare triple {17806#(and (or (< 36 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 20) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17807#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 24) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,405 INFO L273 TraceCheckUtils]: 12: Hoare triple {17807#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 24) (<= main_n 36)))} assume i <= n * 4; {17807#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 24) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,406 INFO L273 TraceCheckUtils]: 13: Hoare triple {17807#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 24) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17808#(and (or (<= main_n 36) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,406 INFO L273 TraceCheckUtils]: 14: Hoare triple {17808#(and (or (<= main_n 36) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17808#(and (or (<= main_n 36) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,407 INFO L273 TraceCheckUtils]: 15: Hoare triple {17808#(and (or (<= main_n 36) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17809#(and (or (<= main_i 32) (<= main_n 36)) (or (< 36 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:35,408 INFO L273 TraceCheckUtils]: 16: Hoare triple {17809#(and (or (<= main_i 32) (<= main_n 36)) (or (< 36 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {17809#(and (or (<= main_i 32) (<= main_n 36)) (or (< 36 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:35,409 INFO L273 TraceCheckUtils]: 17: Hoare triple {17809#(and (or (<= main_i 32) (<= main_n 36)) (or (< 36 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {17810#(and (or (<= main_i 36) (<= main_n 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,410 INFO L273 TraceCheckUtils]: 18: Hoare triple {17810#(and (or (<= main_i 36) (<= main_n 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 36 main_n)))} assume i <= n * 4; {17810#(and (or (<= main_i 36) (<= main_n 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,411 INFO L273 TraceCheckUtils]: 19: Hoare triple {17810#(and (or (<= main_i 36) (<= main_n 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17811#(and (or (<= main_i 40) (<= main_n 36)) (or (< 36 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:35,412 INFO L273 TraceCheckUtils]: 20: Hoare triple {17811#(and (or (<= main_i 40) (<= main_n 36)) (or (< 36 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {17811#(and (or (<= main_i 40) (<= main_n 36)) (or (< 36 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:35,413 INFO L273 TraceCheckUtils]: 21: Hoare triple {17811#(and (or (<= main_i 40) (<= main_n 36)) (or (< 36 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {17812#(and (or (<= main_n 36) (<= main_i 44)) (or (< 36 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:35,413 INFO L273 TraceCheckUtils]: 22: Hoare triple {17812#(and (or (<= main_n 36) (<= main_i 44)) (or (< 36 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {17812#(and (or (<= main_n 36) (<= main_i 44)) (or (< 36 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:35,414 INFO L273 TraceCheckUtils]: 23: Hoare triple {17812#(and (or (<= main_n 36) (<= main_i 44)) (or (< 36 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {17813#(and (or (<= main_i 48) (<= main_n 36)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,415 INFO L273 TraceCheckUtils]: 24: Hoare triple {17813#(and (or (<= main_i 48) (<= main_n 36)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17813#(and (or (<= main_i 48) (<= main_n 36)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,416 INFO L273 TraceCheckUtils]: 25: Hoare triple {17813#(and (or (<= main_i 48) (<= main_n 36)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17814#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 52) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,417 INFO L273 TraceCheckUtils]: 26: Hoare triple {17814#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 52) (<= main_n 36)))} assume i <= n * 4; {17814#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 52) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,418 INFO L273 TraceCheckUtils]: 27: Hoare triple {17814#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 52) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17815#(and (or (< 36 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,419 INFO L273 TraceCheckUtils]: 28: Hoare triple {17815#(and (or (< 36 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 36)))} assume i <= n * 4; {17815#(and (or (< 36 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,420 INFO L273 TraceCheckUtils]: 29: Hoare triple {17815#(and (or (< 36 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17816#(and (or (<= main_i 60) (<= main_n 36)) (or (< 36 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:35,421 INFO L273 TraceCheckUtils]: 30: Hoare triple {17816#(and (or (<= main_i 60) (<= main_n 36)) (or (< 36 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {17816#(and (or (<= main_i 60) (<= main_n 36)) (or (< 36 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:35,422 INFO L273 TraceCheckUtils]: 31: Hoare triple {17816#(and (or (<= main_i 60) (<= main_n 36)) (or (< 36 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {17817#(and (or (<= main_i 64) (<= main_n 36)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,422 INFO L273 TraceCheckUtils]: 32: Hoare triple {17817#(and (or (<= main_i 64) (<= main_n 36)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17817#(and (or (<= main_i 64) (<= main_n 36)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,423 INFO L273 TraceCheckUtils]: 33: Hoare triple {17817#(and (or (<= main_i 64) (<= main_n 36)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17818#(and (or (<= main_n 36) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,424 INFO L273 TraceCheckUtils]: 34: Hoare triple {17818#(and (or (<= main_n 36) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17818#(and (or (<= main_n 36) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,425 INFO L273 TraceCheckUtils]: 35: Hoare triple {17818#(and (or (<= main_n 36) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17819#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 72) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,426 INFO L273 TraceCheckUtils]: 36: Hoare triple {17819#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 72) (<= main_n 36)))} assume i <= n * 4; {17819#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 72) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,427 INFO L273 TraceCheckUtils]: 37: Hoare triple {17819#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 72) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17820#(and (or (<= main_i 76) (<= main_n 36)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,428 INFO L273 TraceCheckUtils]: 38: Hoare triple {17820#(and (or (<= main_i 76) (<= main_n 36)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17820#(and (or (<= main_i 76) (<= main_n 36)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,429 INFO L273 TraceCheckUtils]: 39: Hoare triple {17820#(and (or (<= main_i 76) (<= main_n 36)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17821#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 80) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,429 INFO L273 TraceCheckUtils]: 40: Hoare triple {17821#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 80) (<= main_n 36)))} assume i <= n * 4; {17821#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 80) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,431 INFO L273 TraceCheckUtils]: 41: Hoare triple {17821#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 80) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17822#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 36 main_n)) (or (<= main_i 84) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,431 INFO L273 TraceCheckUtils]: 42: Hoare triple {17822#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 36 main_n)) (or (<= main_i 84) (<= main_n 36)))} assume i <= n * 4; {17822#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 36 main_n)) (or (<= main_i 84) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,432 INFO L273 TraceCheckUtils]: 43: Hoare triple {17822#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 36 main_n)) (or (<= main_i 84) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17823#(and (or (<= main_i 88) (<= main_n 36)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,433 INFO L273 TraceCheckUtils]: 44: Hoare triple {17823#(and (or (<= main_i 88) (<= main_n 36)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17823#(and (or (<= main_i 88) (<= main_n 36)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,434 INFO L273 TraceCheckUtils]: 45: Hoare triple {17823#(and (or (<= main_i 88) (<= main_n 36)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17824#(and (or (<= main_i 92) (<= main_n 36)) (or (< 36 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:35,435 INFO L273 TraceCheckUtils]: 46: Hoare triple {17824#(and (or (<= main_i 92) (<= main_n 36)) (or (< 36 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {17824#(and (or (<= main_i 92) (<= main_n 36)) (or (< 36 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:35,436 INFO L273 TraceCheckUtils]: 47: Hoare triple {17824#(and (or (<= main_i 92) (<= main_n 36)) (or (< 36 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {17825#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 96) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,437 INFO L273 TraceCheckUtils]: 48: Hoare triple {17825#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 96) (<= main_n 36)))} assume i <= n * 4; {17825#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 96) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,438 INFO L273 TraceCheckUtils]: 49: Hoare triple {17825#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 96) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17826#(and (or (<= main_i 100) (<= main_n 36)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,438 INFO L273 TraceCheckUtils]: 50: Hoare triple {17826#(and (or (<= main_i 100) (<= main_n 36)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17826#(and (or (<= main_i 100) (<= main_n 36)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,439 INFO L273 TraceCheckUtils]: 51: Hoare triple {17826#(and (or (<= main_i 100) (<= main_n 36)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17827#(and (or (<= main_i 104) (<= main_n 36)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,440 INFO L273 TraceCheckUtils]: 52: Hoare triple {17827#(and (or (<= main_i 104) (<= main_n 36)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17827#(and (or (<= main_i 104) (<= main_n 36)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,441 INFO L273 TraceCheckUtils]: 53: Hoare triple {17827#(and (or (<= main_i 104) (<= main_n 36)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17828#(and (or (<= main_i 108) (<= main_n 36)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,442 INFO L273 TraceCheckUtils]: 54: Hoare triple {17828#(and (or (<= main_i 108) (<= main_n 36)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume i <= n * 4; {17828#(and (or (<= main_i 108) (<= main_n 36)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,443 INFO L273 TraceCheckUtils]: 55: Hoare triple {17828#(and (or (<= main_i 108) (<= main_n 36)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17829#(and (or (<= main_n 36) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,444 INFO L273 TraceCheckUtils]: 56: Hoare triple {17829#(and (or (<= main_n 36) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 36 main_n)))} assume i <= n * 4; {17829#(and (or (<= main_n 36) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 36 main_n)))} is VALID [2018-12-18 17:56:35,445 INFO L273 TraceCheckUtils]: 57: Hoare triple {17829#(and (or (<= main_n 36) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 36 main_n)))} assume a[i] != 23;i := i + 4; {17830#(and (or (< 36 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,445 INFO L273 TraceCheckUtils]: 58: Hoare triple {17830#(and (or (< 36 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 36)))} assume i <= n * 4; {17830#(and (or (< 36 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,447 INFO L273 TraceCheckUtils]: 59: Hoare triple {17830#(and (or (< 36 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17831#(and (or (<= main_i 120) (<= main_n 36)) (or (< 36 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:35,447 INFO L273 TraceCheckUtils]: 60: Hoare triple {17831#(and (or (<= main_i 120) (<= main_n 36)) (or (< 36 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {17831#(and (or (<= main_i 120) (<= main_n 36)) (or (< 36 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:35,448 INFO L273 TraceCheckUtils]: 61: Hoare triple {17831#(and (or (<= main_i 120) (<= main_n 36)) (or (< 36 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {17832#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 124) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,449 INFO L273 TraceCheckUtils]: 62: Hoare triple {17832#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 124) (<= main_n 36)))} assume i <= n * 4; {17832#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 124) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,450 INFO L273 TraceCheckUtils]: 63: Hoare triple {17832#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 36 main_n)) (or (<= main_i 124) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17833#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 36 main_n)) (or (<= main_i 128) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,451 INFO L273 TraceCheckUtils]: 64: Hoare triple {17833#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 36 main_n)) (or (<= main_i 128) (<= main_n 36)))} assume i <= n * 4; {17833#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 36 main_n)) (or (<= main_i 128) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,452 INFO L273 TraceCheckUtils]: 65: Hoare triple {17833#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 36 main_n)) (or (<= main_i 128) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17834#(and (or (< 36 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,453 INFO L273 TraceCheckUtils]: 66: Hoare triple {17834#(and (or (< 36 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 36)))} assume i <= n * 4; {17834#(and (or (< 36 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,454 INFO L273 TraceCheckUtils]: 67: Hoare triple {17834#(and (or (< 36 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17835#(and (or (< 36 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,454 INFO L273 TraceCheckUtils]: 68: Hoare triple {17835#(and (or (< 36 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 36)))} assume i <= n * 4; {17835#(and (or (< 36 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 36)))} is VALID [2018-12-18 17:56:35,455 INFO L273 TraceCheckUtils]: 69: Hoare triple {17835#(and (or (< 36 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 36)))} assume a[i] != 23;i := i + 4; {17836#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 36) (<= main_i 140)))} is VALID [2018-12-18 17:56:35,456 INFO L273 TraceCheckUtils]: 70: Hoare triple {17836#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 36) (<= main_i 140)))} assume i <= n * 4; {17836#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 36) (<= main_i 140)))} is VALID [2018-12-18 17:56:35,457 INFO L273 TraceCheckUtils]: 71: Hoare triple {17836#(and (or (< 36 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 36) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {17837#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 36 main_n)) (or (<= main_n 36) (<= main_i 144)))} is VALID [2018-12-18 17:56:35,458 INFO L273 TraceCheckUtils]: 72: Hoare triple {17837#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 36 main_n)) (or (<= main_n 36) (<= main_i 144)))} assume i <= n * 4; {17838#(and (or (< 36 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 144))} is VALID [2018-12-18 17:56:35,459 INFO L273 TraceCheckUtils]: 73: Hoare triple {17838#(and (or (< 36 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 144))} assume a[i] != 23;i := i + 4; {17839#(and (< 36 main_n) (<= main_i 148))} is VALID [2018-12-18 17:56:35,460 INFO L273 TraceCheckUtils]: 74: Hoare triple {17839#(and (< 36 main_n) (<= main_i 148))} assume !(i <= n * 4); {17800#false} is VALID [2018-12-18 17:56:35,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 0 proven. 1332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:56:35,486 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:56:35,486 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:56:35,486 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:56:35,486 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:56:35,487 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:56:35,487 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:56:35,495 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-18 17:56:35,495 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-18 17:56:35,517 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-18 17:56:35,517 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:56:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:56:35,528 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:56:35,538 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:56:35,543 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:56:35,550 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:56:35,550 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:56:35,556 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:56:35,556 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_40]. (and (= (store v_main_a_40 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:56:35,556 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:56:37,870 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:56:37,872 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:56:37,878 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:56:37,879 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:56:37,881 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:56:37,881 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 144) 23)) (<= 144 .cse0) (= 23 (select main_a .cse0)) (<= main_i 148))) [2018-12-18 17:56:37,881 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 144 .cse0)) (<= 144 .cse0) (<= main_i 148))) [2018-12-18 17:56:37,931 INFO L273 TraceCheckUtils]: 0: Hoare triple {17799#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {17843#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,931 INFO L273 TraceCheckUtils]: 1: Hoare triple {17843#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17847#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:56:37,932 INFO L273 TraceCheckUtils]: 2: Hoare triple {17847#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {17847#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:56:37,932 INFO L273 TraceCheckUtils]: 3: Hoare triple {17847#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {17854#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,933 INFO L273 TraceCheckUtils]: 4: Hoare triple {17854#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17854#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,933 INFO L273 TraceCheckUtils]: 5: Hoare triple {17854#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17861#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:56:37,934 INFO L273 TraceCheckUtils]: 6: Hoare triple {17861#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {17861#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:56:37,935 INFO L273 TraceCheckUtils]: 7: Hoare triple {17861#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {17868#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,935 INFO L273 TraceCheckUtils]: 8: Hoare triple {17868#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17868#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,936 INFO L273 TraceCheckUtils]: 9: Hoare triple {17868#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17875#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,937 INFO L273 TraceCheckUtils]: 10: Hoare triple {17875#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17875#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,937 INFO L273 TraceCheckUtils]: 11: Hoare triple {17875#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17882#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,938 INFO L273 TraceCheckUtils]: 12: Hoare triple {17882#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17882#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,939 INFO L273 TraceCheckUtils]: 13: Hoare triple {17882#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17889#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,939 INFO L273 TraceCheckUtils]: 14: Hoare triple {17889#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17889#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,940 INFO L273 TraceCheckUtils]: 15: Hoare triple {17889#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17896#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,941 INFO L273 TraceCheckUtils]: 16: Hoare triple {17896#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17896#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,941 INFO L273 TraceCheckUtils]: 17: Hoare triple {17896#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17903#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,942 INFO L273 TraceCheckUtils]: 18: Hoare triple {17903#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17903#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,943 INFO L273 TraceCheckUtils]: 19: Hoare triple {17903#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17910#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,943 INFO L273 TraceCheckUtils]: 20: Hoare triple {17910#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17910#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,944 INFO L273 TraceCheckUtils]: 21: Hoare triple {17910#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17917#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,945 INFO L273 TraceCheckUtils]: 22: Hoare triple {17917#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17917#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,945 INFO L273 TraceCheckUtils]: 23: Hoare triple {17917#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17924#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,946 INFO L273 TraceCheckUtils]: 24: Hoare triple {17924#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17924#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,947 INFO L273 TraceCheckUtils]: 25: Hoare triple {17924#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17931#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,947 INFO L273 TraceCheckUtils]: 26: Hoare triple {17931#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17931#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,948 INFO L273 TraceCheckUtils]: 27: Hoare triple {17931#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17938#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,949 INFO L273 TraceCheckUtils]: 28: Hoare triple {17938#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17938#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,949 INFO L273 TraceCheckUtils]: 29: Hoare triple {17938#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17945#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,950 INFO L273 TraceCheckUtils]: 30: Hoare triple {17945#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17945#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,951 INFO L273 TraceCheckUtils]: 31: Hoare triple {17945#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17952#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,951 INFO L273 TraceCheckUtils]: 32: Hoare triple {17952#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17952#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,952 INFO L273 TraceCheckUtils]: 33: Hoare triple {17952#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17959#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,953 INFO L273 TraceCheckUtils]: 34: Hoare triple {17959#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17959#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,953 INFO L273 TraceCheckUtils]: 35: Hoare triple {17959#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17966#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,954 INFO L273 TraceCheckUtils]: 36: Hoare triple {17966#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17966#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,955 INFO L273 TraceCheckUtils]: 37: Hoare triple {17966#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17973#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,955 INFO L273 TraceCheckUtils]: 38: Hoare triple {17973#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17973#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,956 INFO L273 TraceCheckUtils]: 39: Hoare triple {17973#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17980#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:56:37,957 INFO L273 TraceCheckUtils]: 40: Hoare triple {17980#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {17980#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:56:37,958 INFO L273 TraceCheckUtils]: 41: Hoare triple {17980#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {17987#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,958 INFO L273 TraceCheckUtils]: 42: Hoare triple {17987#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17987#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,959 INFO L273 TraceCheckUtils]: 43: Hoare triple {17987#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17994#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,960 INFO L273 TraceCheckUtils]: 44: Hoare triple {17994#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {17994#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,960 INFO L273 TraceCheckUtils]: 45: Hoare triple {17994#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18001#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,961 INFO L273 TraceCheckUtils]: 46: Hoare triple {18001#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18001#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,962 INFO L273 TraceCheckUtils]: 47: Hoare triple {18001#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18008#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,962 INFO L273 TraceCheckUtils]: 48: Hoare triple {18008#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18008#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,963 INFO L273 TraceCheckUtils]: 49: Hoare triple {18008#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18015#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,964 INFO L273 TraceCheckUtils]: 50: Hoare triple {18015#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18015#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,964 INFO L273 TraceCheckUtils]: 51: Hoare triple {18015#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18022#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,965 INFO L273 TraceCheckUtils]: 52: Hoare triple {18022#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18022#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,966 INFO L273 TraceCheckUtils]: 53: Hoare triple {18022#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18029#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,966 INFO L273 TraceCheckUtils]: 54: Hoare triple {18029#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18029#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,967 INFO L273 TraceCheckUtils]: 55: Hoare triple {18029#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18036#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,968 INFO L273 TraceCheckUtils]: 56: Hoare triple {18036#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18036#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,969 INFO L273 TraceCheckUtils]: 57: Hoare triple {18036#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18043#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,969 INFO L273 TraceCheckUtils]: 58: Hoare triple {18043#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18043#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,970 INFO L273 TraceCheckUtils]: 59: Hoare triple {18043#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18050#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,971 INFO L273 TraceCheckUtils]: 60: Hoare triple {18050#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18050#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,971 INFO L273 TraceCheckUtils]: 61: Hoare triple {18050#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18057#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,972 INFO L273 TraceCheckUtils]: 62: Hoare triple {18057#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18057#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,973 INFO L273 TraceCheckUtils]: 63: Hoare triple {18057#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18064#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,973 INFO L273 TraceCheckUtils]: 64: Hoare triple {18064#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18064#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,974 INFO L273 TraceCheckUtils]: 65: Hoare triple {18064#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18071#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,975 INFO L273 TraceCheckUtils]: 66: Hoare triple {18071#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18071#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,976 INFO L273 TraceCheckUtils]: 67: Hoare triple {18071#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18078#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,976 INFO L273 TraceCheckUtils]: 68: Hoare triple {18078#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18078#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,977 INFO L273 TraceCheckUtils]: 69: Hoare triple {18078#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18085#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 17:56:37,978 INFO L273 TraceCheckUtils]: 70: Hoare triple {18085#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {18085#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 17:56:37,979 INFO L273 TraceCheckUtils]: 71: Hoare triple {18085#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {18092#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,980 INFO L273 TraceCheckUtils]: 72: Hoare triple {18092#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18096#(and (<= main_i (* 4 main_n)) (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:37,981 INFO L273 TraceCheckUtils]: 73: Hoare triple {18096#(and (<= main_i (* 4 main_n)) (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {17839#(and (< 36 main_n) (<= main_i 148))} is VALID [2018-12-18 17:56:37,981 INFO L273 TraceCheckUtils]: 74: Hoare triple {17839#(and (< 36 main_n) (<= main_i 148))} assume !(i <= n * 4); {17800#false} is VALID [2018-12-18 17:56:37,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 0 proven. 1332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:56:37,995 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:56:42,065 INFO L273 TraceCheckUtils]: 74: Hoare triple {18103#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {17800#false} is VALID [2018-12-18 17:56:42,066 INFO L273 TraceCheckUtils]: 73: Hoare triple {18107#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {18103#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:56:42,067 INFO L273 TraceCheckUtils]: 72: Hoare triple {18111#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {18107#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:56:42,068 INFO L273 TraceCheckUtils]: 71: Hoare triple {18115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {18111#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:56:42,068 INFO L273 TraceCheckUtils]: 70: Hoare triple {18115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {18115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:56:42,069 INFO L273 TraceCheckUtils]: 69: Hoare triple {18122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {18115#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:56:42,069 INFO L273 TraceCheckUtils]: 68: Hoare triple {18122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {18122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:56:42,070 INFO L273 TraceCheckUtils]: 67: Hoare triple {18129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {18122#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:56:42,071 INFO L273 TraceCheckUtils]: 66: Hoare triple {18129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {18129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:56:42,072 INFO L273 TraceCheckUtils]: 65: Hoare triple {18136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {18129#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:56:42,072 INFO L273 TraceCheckUtils]: 64: Hoare triple {18136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {18136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:56:42,073 INFO L273 TraceCheckUtils]: 63: Hoare triple {18143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18136#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:56:42,074 INFO L273 TraceCheckUtils]: 62: Hoare triple {18143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {18143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,075 INFO L273 TraceCheckUtils]: 61: Hoare triple {18150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {18143#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,075 INFO L273 TraceCheckUtils]: 60: Hoare triple {18150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {18150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:56:42,076 INFO L273 TraceCheckUtils]: 59: Hoare triple {18157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18150#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:56:42,077 INFO L273 TraceCheckUtils]: 58: Hoare triple {18157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {18157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,078 INFO L273 TraceCheckUtils]: 57: Hoare triple {18164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18157#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,079 INFO L273 TraceCheckUtils]: 56: Hoare triple {18164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {18164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,080 INFO L273 TraceCheckUtils]: 55: Hoare triple {18171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18164#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,080 INFO L273 TraceCheckUtils]: 54: Hoare triple {18171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {18171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,081 INFO L273 TraceCheckUtils]: 53: Hoare triple {18178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {18171#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,082 INFO L273 TraceCheckUtils]: 52: Hoare triple {18178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {18178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:56:42,083 INFO L273 TraceCheckUtils]: 51: Hoare triple {18185#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18178#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:56:42,083 INFO L273 TraceCheckUtils]: 50: Hoare triple {18185#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {18185#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,084 INFO L273 TraceCheckUtils]: 49: Hoare triple {18192#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18185#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,085 INFO L273 TraceCheckUtils]: 48: Hoare triple {18192#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {18192#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,086 INFO L273 TraceCheckUtils]: 47: Hoare triple {18199#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {18192#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,087 INFO L273 TraceCheckUtils]: 46: Hoare triple {18199#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {18199#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:56:42,088 INFO L273 TraceCheckUtils]: 45: Hoare triple {18206#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18199#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:56:42,088 INFO L273 TraceCheckUtils]: 44: Hoare triple {18206#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {18206#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,090 INFO L273 TraceCheckUtils]: 43: Hoare triple {18213#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {18206#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,090 INFO L273 TraceCheckUtils]: 42: Hoare triple {18213#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {18213#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:56:42,091 INFO L273 TraceCheckUtils]: 41: Hoare triple {18220#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {18213#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:56:42,092 INFO L273 TraceCheckUtils]: 40: Hoare triple {18220#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {18220#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:56:42,093 INFO L273 TraceCheckUtils]: 39: Hoare triple {18227#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {18220#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:56:42,093 INFO L273 TraceCheckUtils]: 38: Hoare triple {18227#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {18227#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:56:42,095 INFO L273 TraceCheckUtils]: 37: Hoare triple {18234#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {18227#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:56:42,095 INFO L273 TraceCheckUtils]: 36: Hoare triple {18234#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {18234#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:56:42,096 INFO L273 TraceCheckUtils]: 35: Hoare triple {18241#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {18234#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:56:42,097 INFO L273 TraceCheckUtils]: 34: Hoare triple {18241#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {18241#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:56:42,098 INFO L273 TraceCheckUtils]: 33: Hoare triple {18248#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {18241#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:56:42,098 INFO L273 TraceCheckUtils]: 32: Hoare triple {18248#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {18248#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:56:42,099 INFO L273 TraceCheckUtils]: 31: Hoare triple {18255#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18248#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:56:42,100 INFO L273 TraceCheckUtils]: 30: Hoare triple {18255#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {18255#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,101 INFO L273 TraceCheckUtils]: 29: Hoare triple {18262#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18255#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,102 INFO L273 TraceCheckUtils]: 28: Hoare triple {18262#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {18262#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,103 INFO L273 TraceCheckUtils]: 27: Hoare triple {18269#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18262#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,103 INFO L273 TraceCheckUtils]: 26: Hoare triple {18269#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {18269#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,104 INFO L273 TraceCheckUtils]: 25: Hoare triple {18276#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {18269#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,105 INFO L273 TraceCheckUtils]: 24: Hoare triple {18276#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {18276#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:56:42,106 INFO L273 TraceCheckUtils]: 23: Hoare triple {18283#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18276#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:56:42,106 INFO L273 TraceCheckUtils]: 22: Hoare triple {18283#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {18283#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,107 INFO L273 TraceCheckUtils]: 21: Hoare triple {18290#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {18283#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,108 INFO L273 TraceCheckUtils]: 20: Hoare triple {18290#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {18290#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:56:42,109 INFO L273 TraceCheckUtils]: 19: Hoare triple {18297#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {18290#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:56:42,109 INFO L273 TraceCheckUtils]: 18: Hoare triple {18297#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {18297#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:56:42,110 INFO L273 TraceCheckUtils]: 17: Hoare triple {18304#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {18297#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:56:42,111 INFO L273 TraceCheckUtils]: 16: Hoare triple {18304#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {18304#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:56:42,112 INFO L273 TraceCheckUtils]: 15: Hoare triple {18311#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18304#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:56:42,113 INFO L273 TraceCheckUtils]: 14: Hoare triple {18311#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {18311#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,114 INFO L273 TraceCheckUtils]: 13: Hoare triple {18318#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18311#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,114 INFO L273 TraceCheckUtils]: 12: Hoare triple {18318#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {18318#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,115 INFO L273 TraceCheckUtils]: 11: Hoare triple {18325#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {18318#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,116 INFO L273 TraceCheckUtils]: 10: Hoare triple {18325#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {18325#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:56:42,117 INFO L273 TraceCheckUtils]: 9: Hoare triple {18332#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {18325#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:56:42,117 INFO L273 TraceCheckUtils]: 8: Hoare triple {18332#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {18332#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,118 INFO L273 TraceCheckUtils]: 7: Hoare triple {18339#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {18332#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:56:42,119 INFO L273 TraceCheckUtils]: 6: Hoare triple {18339#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {18339#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 17:56:42,120 INFO L273 TraceCheckUtils]: 5: Hoare triple {18346#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {18339#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 17:56:42,121 INFO L273 TraceCheckUtils]: 4: Hoare triple {18346#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {18346#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 17:56:42,122 INFO L273 TraceCheckUtils]: 3: Hoare triple {18353#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {18346#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 17:56:42,122 INFO L273 TraceCheckUtils]: 2: Hoare triple {18353#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {18353#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 17:56:42,123 INFO L273 TraceCheckUtils]: 1: Hoare triple {18360#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {18353#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 17:56:42,124 INFO L273 TraceCheckUtils]: 0: Hoare triple {17799#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {18360#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 17:56:42,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 0 proven. 1332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:56:42,164 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:56:42,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39, 39] total 116 [2018-12-18 17:56:42,164 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:56:42,164 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 75 [2018-12-18 17:56:42,165 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:56:42,165 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 79 states. [2018-12-18 17:56:42,375 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 149 edges. 149 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:56:42,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 79 states [2018-12-18 17:56:42,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2018-12-18 17:56:42,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1724, Invalid=12082, Unknown=0, NotChecked=0, Total=13806 [2018-12-18 17:56:42,377 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand 79 states. [2018-12-18 17:56:50,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:56:50,332 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2018-12-18 17:56:50,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-12-18 17:56:50,332 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 75 [2018-12-18 17:56:50,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:56:50,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-12-18 17:56:50,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 80 transitions. [2018-12-18 17:56:50,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-12-18 17:56:50,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 80 transitions. [2018-12-18 17:56:50,334 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 41 states and 80 transitions. [2018-12-18 17:56:50,420 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 80 edges. 80 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:56:50,421 INFO L225 Difference]: With dead ends: 80 [2018-12-18 17:56:50,421 INFO L226 Difference]: Without dead ends: 79 [2018-12-18 17:56:50,422 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3116 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=1724, Invalid=12082, Unknown=0, NotChecked=0, Total=13806 [2018-12-18 17:56:50,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-12-18 17:56:50,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2018-12-18 17:56:50,504 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:56:50,504 INFO L82 GeneralOperation]: Start isEquivalent. First operand 79 states. Second operand 78 states. [2018-12-18 17:56:50,504 INFO L74 IsIncluded]: Start isIncluded. First operand 79 states. Second operand 78 states. [2018-12-18 17:56:50,504 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 78 states. [2018-12-18 17:56:50,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:56:50,505 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2018-12-18 17:56:50,506 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2018-12-18 17:56:50,506 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:56:50,506 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:56:50,506 INFO L74 IsIncluded]: Start isIncluded. First operand 78 states. Second operand 79 states. [2018-12-18 17:56:50,506 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 79 states. [2018-12-18 17:56:50,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:56:50,508 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2018-12-18 17:56:50,508 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2018-12-18 17:56:50,508 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:56:50,508 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:56:50,508 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:56:50,508 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:56:50,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-12-18 17:56:50,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2018-12-18 17:56:50,509 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 75 [2018-12-18 17:56:50,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:56:50,509 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2018-12-18 17:56:50,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has 79 states. [2018-12-18 17:56:50,510 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2018-12-18 17:56:50,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-12-18 17:56:50,510 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:56:50,510 INFO L402 BasicCegarLoop]: trace histogram [38, 37, 1, 1] [2018-12-18 17:56:50,511 INFO L423 AbstractCegarLoop]: === Iteration 38 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:56:50,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:56:50,511 INFO L82 PathProgramCache]: Analyzing trace with hash 645045610, now seen corresponding path program 37 times [2018-12-18 17:56:50,511 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:56:50,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:56:50,512 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:56:50,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:56:50,512 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:56:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:56:52,761 INFO L273 TraceCheckUtils]: 0: Hoare triple {18756#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {18758#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 0) (<= main_n 37)))} is VALID [2018-12-18 17:56:52,762 INFO L273 TraceCheckUtils]: 1: Hoare triple {18758#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 0) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18759#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 37)))} is VALID [2018-12-18 17:56:52,763 INFO L273 TraceCheckUtils]: 2: Hoare triple {18759#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 37)))} assume i <= n * 4; {18759#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 37)))} is VALID [2018-12-18 17:56:52,764 INFO L273 TraceCheckUtils]: 3: Hoare triple {18759#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18760#(and (or (<= main_i 8) (<= main_n 37)) (or (< 37 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,765 INFO L273 TraceCheckUtils]: 4: Hoare triple {18760#(and (or (<= main_i 8) (<= main_n 37)) (or (< 37 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18760#(and (or (<= main_i 8) (<= main_n 37)) (or (< 37 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,766 INFO L273 TraceCheckUtils]: 5: Hoare triple {18760#(and (or (<= main_i 8) (<= main_n 37)) (or (< 37 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18761#(and (or (< 37 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 37) (<= main_i 12)))} is VALID [2018-12-18 17:56:52,767 INFO L273 TraceCheckUtils]: 6: Hoare triple {18761#(and (or (< 37 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 37) (<= main_i 12)))} assume i <= n * 4; {18761#(and (or (< 37 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 37) (<= main_i 12)))} is VALID [2018-12-18 17:56:52,768 INFO L273 TraceCheckUtils]: 7: Hoare triple {18761#(and (or (< 37 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 37) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {18762#(and (or (<= main_i 16) (<= main_n 37)) (or (< 37 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,769 INFO L273 TraceCheckUtils]: 8: Hoare triple {18762#(and (or (<= main_i 16) (<= main_n 37)) (or (< 37 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18762#(and (or (<= main_i 16) (<= main_n 37)) (or (< 37 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,770 INFO L273 TraceCheckUtils]: 9: Hoare triple {18762#(and (or (<= main_i 16) (<= main_n 37)) (or (< 37 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18763#(and (or (<= main_i 20) (<= main_n 37)) (or (< 37 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,771 INFO L273 TraceCheckUtils]: 10: Hoare triple {18763#(and (or (<= main_i 20) (<= main_n 37)) (or (< 37 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18763#(and (or (<= main_i 20) (<= main_n 37)) (or (< 37 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,772 INFO L273 TraceCheckUtils]: 11: Hoare triple {18763#(and (or (<= main_i 20) (<= main_n 37)) (or (< 37 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18764#(and (or (<= main_i 24) (<= main_n 37)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2018-12-18 17:56:52,772 INFO L273 TraceCheckUtils]: 12: Hoare triple {18764#(and (or (<= main_i 24) (<= main_n 37)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume i <= n * 4; {18764#(and (or (<= main_i 24) (<= main_n 37)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2018-12-18 17:56:52,773 INFO L273 TraceCheckUtils]: 13: Hoare triple {18764#(and (or (<= main_i 24) (<= main_n 37)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18765#(and (or (<= main_n 37) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2018-12-18 17:56:52,774 INFO L273 TraceCheckUtils]: 14: Hoare triple {18765#(and (or (<= main_n 37) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume i <= n * 4; {18765#(and (or (<= main_n 37) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2018-12-18 17:56:52,775 INFO L273 TraceCheckUtils]: 15: Hoare triple {18765#(and (or (<= main_n 37) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18766#(and (or (< 37 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 37)))} is VALID [2018-12-18 17:56:52,776 INFO L273 TraceCheckUtils]: 16: Hoare triple {18766#(and (or (< 37 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 37)))} assume i <= n * 4; {18766#(and (or (< 37 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 37)))} is VALID [2018-12-18 17:56:52,777 INFO L273 TraceCheckUtils]: 17: Hoare triple {18766#(and (or (< 37 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18767#(and (or (<= main_i 36) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 37 main_n)))} is VALID [2018-12-18 17:56:52,778 INFO L273 TraceCheckUtils]: 18: Hoare triple {18767#(and (or (<= main_i 36) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 37 main_n)))} assume i <= n * 4; {18767#(and (or (<= main_i 36) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 37 main_n)))} is VALID [2018-12-18 17:56:52,779 INFO L273 TraceCheckUtils]: 19: Hoare triple {18767#(and (or (<= main_i 36) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18768#(and (or (<= main_i 40) (<= main_n 37)) (or (< 37 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,780 INFO L273 TraceCheckUtils]: 20: Hoare triple {18768#(and (or (<= main_i 40) (<= main_n 37)) (or (< 37 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18768#(and (or (<= main_i 40) (<= main_n 37)) (or (< 37 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,781 INFO L273 TraceCheckUtils]: 21: Hoare triple {18768#(and (or (<= main_i 40) (<= main_n 37)) (or (< 37 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18769#(and (or (<= main_n 37) (<= main_i 44)) (or (< 37 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,782 INFO L273 TraceCheckUtils]: 22: Hoare triple {18769#(and (or (<= main_n 37) (<= main_i 44)) (or (< 37 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18769#(and (or (<= main_n 37) (<= main_i 44)) (or (< 37 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,783 INFO L273 TraceCheckUtils]: 23: Hoare triple {18769#(and (or (<= main_n 37) (<= main_i 44)) (or (< 37 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18770#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 48)))} is VALID [2018-12-18 17:56:52,784 INFO L273 TraceCheckUtils]: 24: Hoare triple {18770#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 48)))} assume i <= n * 4; {18770#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 48)))} is VALID [2018-12-18 17:56:52,785 INFO L273 TraceCheckUtils]: 25: Hoare triple {18770#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {18771#(and (or (<= main_i 52) (<= main_n 37)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2018-12-18 17:56:52,785 INFO L273 TraceCheckUtils]: 26: Hoare triple {18771#(and (or (<= main_i 52) (<= main_n 37)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume i <= n * 4; {18771#(and (or (<= main_i 52) (<= main_n 37)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2018-12-18 17:56:52,786 INFO L273 TraceCheckUtils]: 27: Hoare triple {18771#(and (or (<= main_i 52) (<= main_n 37)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18772#(and (or (< 37 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 37)))} is VALID [2018-12-18 17:56:52,787 INFO L273 TraceCheckUtils]: 28: Hoare triple {18772#(and (or (< 37 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 37)))} assume i <= n * 4; {18772#(and (or (< 37 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 37)))} is VALID [2018-12-18 17:56:52,788 INFO L273 TraceCheckUtils]: 29: Hoare triple {18772#(and (or (< 37 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 56) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18773#(and (or (< 37 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 37)))} is VALID [2018-12-18 17:56:52,789 INFO L273 TraceCheckUtils]: 30: Hoare triple {18773#(and (or (< 37 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 37)))} assume i <= n * 4; {18773#(and (or (< 37 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 37)))} is VALID [2018-12-18 17:56:52,790 INFO L273 TraceCheckUtils]: 31: Hoare triple {18773#(and (or (< 37 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18774#(and (or (<= main_i 64) (<= main_n 37)) (or (< 37 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,791 INFO L273 TraceCheckUtils]: 32: Hoare triple {18774#(and (or (<= main_i 64) (<= main_n 37)) (or (< 37 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18774#(and (or (<= main_i 64) (<= main_n 37)) (or (< 37 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,792 INFO L273 TraceCheckUtils]: 33: Hoare triple {18774#(and (or (<= main_i 64) (<= main_n 37)) (or (< 37 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18775#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 68)))} is VALID [2018-12-18 17:56:52,793 INFO L273 TraceCheckUtils]: 34: Hoare triple {18775#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 68)))} assume i <= n * 4; {18775#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 68)))} is VALID [2018-12-18 17:56:52,794 INFO L273 TraceCheckUtils]: 35: Hoare triple {18775#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_n 37) (<= main_i 68)))} assume a[i] != 23;i := i + 4; {18776#(and (or (<= main_i 72) (<= main_n 37)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2018-12-18 17:56:52,795 INFO L273 TraceCheckUtils]: 36: Hoare triple {18776#(and (or (<= main_i 72) (<= main_n 37)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume i <= n * 4; {18776#(and (or (<= main_i 72) (<= main_n 37)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2018-12-18 17:56:52,796 INFO L273 TraceCheckUtils]: 37: Hoare triple {18776#(and (or (<= main_i 72) (<= main_n 37)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18777#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 76) (<= main_n 37)))} is VALID [2018-12-18 17:56:52,797 INFO L273 TraceCheckUtils]: 38: Hoare triple {18777#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 76) (<= main_n 37)))} assume i <= n * 4; {18777#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 76) (<= main_n 37)))} is VALID [2018-12-18 17:56:52,798 INFO L273 TraceCheckUtils]: 39: Hoare triple {18777#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 76) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18778#(and (or (<= main_n 37) (<= main_i 80)) (or (< 37 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,799 INFO L273 TraceCheckUtils]: 40: Hoare triple {18778#(and (or (<= main_n 37) (<= main_i 80)) (or (< 37 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18778#(and (or (<= main_n 37) (<= main_i 80)) (or (< 37 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,800 INFO L273 TraceCheckUtils]: 41: Hoare triple {18778#(and (or (<= main_n 37) (<= main_i 80)) (or (< 37 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18779#(and (or (<= main_i 84) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 37 main_n)))} is VALID [2018-12-18 17:56:52,800 INFO L273 TraceCheckUtils]: 42: Hoare triple {18779#(and (or (<= main_i 84) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 37 main_n)))} assume i <= n * 4; {18779#(and (or (<= main_i 84) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 37 main_n)))} is VALID [2018-12-18 17:56:52,802 INFO L273 TraceCheckUtils]: 43: Hoare triple {18779#(and (or (<= main_i 84) (<= main_n 37)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18780#(and (or (< 37 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 37)))} is VALID [2018-12-18 17:56:52,802 INFO L273 TraceCheckUtils]: 44: Hoare triple {18780#(and (or (< 37 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 37)))} assume i <= n * 4; {18780#(and (or (< 37 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 37)))} is VALID [2018-12-18 17:56:52,803 INFO L273 TraceCheckUtils]: 45: Hoare triple {18780#(and (or (< 37 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18781#(and (or (<= main_i 92) (<= main_n 37)) (or (< 37 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,804 INFO L273 TraceCheckUtils]: 46: Hoare triple {18781#(and (or (<= main_i 92) (<= main_n 37)) (or (< 37 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18781#(and (or (<= main_i 92) (<= main_n 37)) (or (< 37 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,805 INFO L273 TraceCheckUtils]: 47: Hoare triple {18781#(and (or (<= main_i 92) (<= main_n 37)) (or (< 37 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18782#(and (or (< 37 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 37)))} is VALID [2018-12-18 17:56:52,806 INFO L273 TraceCheckUtils]: 48: Hoare triple {18782#(and (or (< 37 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 37)))} assume i <= n * 4; {18782#(and (or (< 37 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 37)))} is VALID [2018-12-18 17:56:52,807 INFO L273 TraceCheckUtils]: 49: Hoare triple {18782#(and (or (< 37 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18783#(and (or (<= main_i 100) (<= main_n 37)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2018-12-18 17:56:52,808 INFO L273 TraceCheckUtils]: 50: Hoare triple {18783#(and (or (<= main_i 100) (<= main_n 37)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume i <= n * 4; {18783#(and (or (<= main_i 100) (<= main_n 37)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2018-12-18 17:56:52,809 INFO L273 TraceCheckUtils]: 51: Hoare triple {18783#(and (or (<= main_i 100) (<= main_n 37)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18784#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 104) (<= main_n 37)))} is VALID [2018-12-18 17:56:52,810 INFO L273 TraceCheckUtils]: 52: Hoare triple {18784#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 104) (<= main_n 37)))} assume i <= n * 4; {18784#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 104) (<= main_n 37)))} is VALID [2018-12-18 17:56:52,811 INFO L273 TraceCheckUtils]: 53: Hoare triple {18784#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)) (or (<= main_i 104) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18785#(and (or (<= main_n 37) (<= main_i 108)) (or (< 37 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,812 INFO L273 TraceCheckUtils]: 54: Hoare triple {18785#(and (or (<= main_n 37) (<= main_i 108)) (or (< 37 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18785#(and (or (<= main_n 37) (<= main_i 108)) (or (< 37 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,813 INFO L273 TraceCheckUtils]: 55: Hoare triple {18785#(and (or (<= main_n 37) (<= main_i 108)) (or (< 37 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18786#(and (or (<= main_n 37) (<= main_i 112)) (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2018-12-18 17:56:52,814 INFO L273 TraceCheckUtils]: 56: Hoare triple {18786#(and (or (<= main_n 37) (<= main_i 112)) (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume i <= n * 4; {18786#(and (or (<= main_n 37) (<= main_i 112)) (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2018-12-18 17:56:52,815 INFO L273 TraceCheckUtils]: 57: Hoare triple {18786#(and (or (<= main_n 37) (<= main_i 112)) (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume a[i] != 23;i := i + 4; {18787#(and (or (< 37 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 37)))} is VALID [2018-12-18 17:56:52,815 INFO L273 TraceCheckUtils]: 58: Hoare triple {18787#(and (or (< 37 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 37)))} assume i <= n * 4; {18787#(and (or (< 37 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 37)))} is VALID [2018-12-18 17:56:52,817 INFO L273 TraceCheckUtils]: 59: Hoare triple {18787#(and (or (< 37 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 116) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18788#(and (or (<= main_i 120) (<= main_n 37)) (or (< 37 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,817 INFO L273 TraceCheckUtils]: 60: Hoare triple {18788#(and (or (<= main_i 120) (<= main_n 37)) (or (< 37 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18788#(and (or (<= main_i 120) (<= main_n 37)) (or (< 37 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,818 INFO L273 TraceCheckUtils]: 61: Hoare triple {18788#(and (or (<= main_i 120) (<= main_n 37)) (or (< 37 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18789#(and (or (<= main_i 124) (<= main_n 37)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2018-12-18 17:56:52,819 INFO L273 TraceCheckUtils]: 62: Hoare triple {18789#(and (or (<= main_i 124) (<= main_n 37)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume i <= n * 4; {18789#(and (or (<= main_i 124) (<= main_n 37)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} is VALID [2018-12-18 17:56:52,820 INFO L273 TraceCheckUtils]: 63: Hoare triple {18789#(and (or (<= main_i 124) (<= main_n 37)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 37 main_n)))} assume a[i] != 23;i := i + 4; {18790#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 37)))} is VALID [2018-12-18 17:56:52,821 INFO L273 TraceCheckUtils]: 64: Hoare triple {18790#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 37)))} assume i <= n * 4; {18790#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 37)))} is VALID [2018-12-18 17:56:52,822 INFO L273 TraceCheckUtils]: 65: Hoare triple {18790#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))) (or (<= main_i 128) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18791#(and (or (<= main_i 132) (<= main_n 37)) (or (< 37 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,823 INFO L273 TraceCheckUtils]: 66: Hoare triple {18791#(and (or (<= main_i 132) (<= main_n 37)) (or (< 37 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18791#(and (or (<= main_i 132) (<= main_n 37)) (or (< 37 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,824 INFO L273 TraceCheckUtils]: 67: Hoare triple {18791#(and (or (<= main_i 132) (<= main_n 37)) (or (< 37 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18792#(and (or (< 37 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 37)))} is VALID [2018-12-18 17:56:52,825 INFO L273 TraceCheckUtils]: 68: Hoare triple {18792#(and (or (< 37 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 37)))} assume i <= n * 4; {18792#(and (or (< 37 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 37)))} is VALID [2018-12-18 17:56:52,826 INFO L273 TraceCheckUtils]: 69: Hoare triple {18792#(and (or (< 37 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 37)))} assume a[i] != 23;i := i + 4; {18793#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 37) (<= main_i 140)))} is VALID [2018-12-18 17:56:52,827 INFO L273 TraceCheckUtils]: 70: Hoare triple {18793#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 37) (<= main_i 140)))} assume i <= n * 4; {18793#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 37) (<= main_i 140)))} is VALID [2018-12-18 17:56:52,828 INFO L273 TraceCheckUtils]: 71: Hoare triple {18793#(and (or (< 37 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 37) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {18794#(and (or (<= main_n 37) (<= main_i 144)) (or (< 37 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,828 INFO L273 TraceCheckUtils]: 72: Hoare triple {18794#(and (or (<= main_n 37) (<= main_i 144)) (or (< 37 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {18794#(and (or (<= main_n 37) (<= main_i 144)) (or (< 37 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:56:52,829 INFO L273 TraceCheckUtils]: 73: Hoare triple {18794#(and (or (<= main_n 37) (<= main_i 144)) (or (< 37 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {18795#(and (or (<= main_i 148) (<= main_n 37)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 37 main_n)))} is VALID [2018-12-18 17:56:52,831 INFO L273 TraceCheckUtils]: 74: Hoare triple {18795#(and (or (<= main_i 148) (<= main_n 37)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 37 main_n)))} assume i <= n * 4; {18796#(and (or (< 37 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 148))} is VALID [2018-12-18 17:56:52,832 INFO L273 TraceCheckUtils]: 75: Hoare triple {18796#(and (or (< 37 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 148))} assume a[i] != 23;i := i + 4; {18797#(and (<= 38 main_n) (<= main_i 152))} is VALID [2018-12-18 17:56:52,832 INFO L273 TraceCheckUtils]: 76: Hoare triple {18797#(and (<= 38 main_n) (<= main_i 152))} assume !(i <= n * 4); {18757#false} is VALID [2018-12-18 17:56:52,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:56:52,860 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:56:52,860 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:56:52,860 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:56:52,860 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:56:52,860 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:56:52,860 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:56:52,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:56:52,869 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-18 17:56:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:56:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:56:52,905 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:56:52,944 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:56:52,945 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:56:52,950 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:56:52,951 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:56:52,953 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:56:52,954 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_41]. (and (= (store v_main_a_41 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:56:52,954 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:56:55,339 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:56:55,341 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:56:55,347 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:56:55,347 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:56:55,350 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:56:55,350 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 148) 23)) (<= 148 .cse0) (= 23 (select main_a .cse0)) (<= main_i 152))) [2018-12-18 17:56:55,350 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 148 .cse0) (not (= 148 .cse0)) (<= main_i 152))) [2018-12-18 17:56:55,399 INFO L273 TraceCheckUtils]: 0: Hoare triple {18756#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {18801#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,399 INFO L273 TraceCheckUtils]: 1: Hoare triple {18801#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18805#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:56:55,400 INFO L273 TraceCheckUtils]: 2: Hoare triple {18805#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {18805#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:56:55,400 INFO L273 TraceCheckUtils]: 3: Hoare triple {18805#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {18812#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,401 INFO L273 TraceCheckUtils]: 4: Hoare triple {18812#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18812#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,401 INFO L273 TraceCheckUtils]: 5: Hoare triple {18812#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18819#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:56:55,402 INFO L273 TraceCheckUtils]: 6: Hoare triple {18819#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {18819#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:56:55,403 INFO L273 TraceCheckUtils]: 7: Hoare triple {18819#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {18826#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,403 INFO L273 TraceCheckUtils]: 8: Hoare triple {18826#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18826#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,404 INFO L273 TraceCheckUtils]: 9: Hoare triple {18826#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18833#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,405 INFO L273 TraceCheckUtils]: 10: Hoare triple {18833#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18833#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,406 INFO L273 TraceCheckUtils]: 11: Hoare triple {18833#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18840#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,406 INFO L273 TraceCheckUtils]: 12: Hoare triple {18840#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18840#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,407 INFO L273 TraceCheckUtils]: 13: Hoare triple {18840#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18847#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,408 INFO L273 TraceCheckUtils]: 14: Hoare triple {18847#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18847#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,408 INFO L273 TraceCheckUtils]: 15: Hoare triple {18847#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18854#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,409 INFO L273 TraceCheckUtils]: 16: Hoare triple {18854#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18854#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,410 INFO L273 TraceCheckUtils]: 17: Hoare triple {18854#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18861#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,410 INFO L273 TraceCheckUtils]: 18: Hoare triple {18861#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18861#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,411 INFO L273 TraceCheckUtils]: 19: Hoare triple {18861#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18868#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,412 INFO L273 TraceCheckUtils]: 20: Hoare triple {18868#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18868#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,412 INFO L273 TraceCheckUtils]: 21: Hoare triple {18868#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18875#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,413 INFO L273 TraceCheckUtils]: 22: Hoare triple {18875#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18875#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,414 INFO L273 TraceCheckUtils]: 23: Hoare triple {18875#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18882#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,414 INFO L273 TraceCheckUtils]: 24: Hoare triple {18882#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18882#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,415 INFO L273 TraceCheckUtils]: 25: Hoare triple {18882#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18889#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,416 INFO L273 TraceCheckUtils]: 26: Hoare triple {18889#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18889#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,416 INFO L273 TraceCheckUtils]: 27: Hoare triple {18889#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18896#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,417 INFO L273 TraceCheckUtils]: 28: Hoare triple {18896#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18896#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,418 INFO L273 TraceCheckUtils]: 29: Hoare triple {18896#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18903#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,418 INFO L273 TraceCheckUtils]: 30: Hoare triple {18903#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18903#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,419 INFO L273 TraceCheckUtils]: 31: Hoare triple {18903#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18910#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,420 INFO L273 TraceCheckUtils]: 32: Hoare triple {18910#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18910#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,420 INFO L273 TraceCheckUtils]: 33: Hoare triple {18910#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18917#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,421 INFO L273 TraceCheckUtils]: 34: Hoare triple {18917#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18917#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,422 INFO L273 TraceCheckUtils]: 35: Hoare triple {18917#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18924#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,422 INFO L273 TraceCheckUtils]: 36: Hoare triple {18924#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18924#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,423 INFO L273 TraceCheckUtils]: 37: Hoare triple {18924#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18931#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,424 INFO L273 TraceCheckUtils]: 38: Hoare triple {18931#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18931#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,424 INFO L273 TraceCheckUtils]: 39: Hoare triple {18931#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18938#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:56:55,425 INFO L273 TraceCheckUtils]: 40: Hoare triple {18938#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {18938#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:56:55,426 INFO L273 TraceCheckUtils]: 41: Hoare triple {18938#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {18945#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,426 INFO L273 TraceCheckUtils]: 42: Hoare triple {18945#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18945#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,427 INFO L273 TraceCheckUtils]: 43: Hoare triple {18945#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18952#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,428 INFO L273 TraceCheckUtils]: 44: Hoare triple {18952#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18952#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,429 INFO L273 TraceCheckUtils]: 45: Hoare triple {18952#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18959#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,429 INFO L273 TraceCheckUtils]: 46: Hoare triple {18959#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18959#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,430 INFO L273 TraceCheckUtils]: 47: Hoare triple {18959#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18966#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,431 INFO L273 TraceCheckUtils]: 48: Hoare triple {18966#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18966#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,431 INFO L273 TraceCheckUtils]: 49: Hoare triple {18966#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18973#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,432 INFO L273 TraceCheckUtils]: 50: Hoare triple {18973#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18973#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,433 INFO L273 TraceCheckUtils]: 51: Hoare triple {18973#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18980#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,433 INFO L273 TraceCheckUtils]: 52: Hoare triple {18980#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18980#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,434 INFO L273 TraceCheckUtils]: 53: Hoare triple {18980#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18987#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,435 INFO L273 TraceCheckUtils]: 54: Hoare triple {18987#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18987#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,435 INFO L273 TraceCheckUtils]: 55: Hoare triple {18987#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18994#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,436 INFO L273 TraceCheckUtils]: 56: Hoare triple {18994#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {18994#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,437 INFO L273 TraceCheckUtils]: 57: Hoare triple {18994#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19001#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,437 INFO L273 TraceCheckUtils]: 58: Hoare triple {19001#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19001#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,438 INFO L273 TraceCheckUtils]: 59: Hoare triple {19001#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19008#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,439 INFO L273 TraceCheckUtils]: 60: Hoare triple {19008#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19008#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,439 INFO L273 TraceCheckUtils]: 61: Hoare triple {19008#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19015#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,440 INFO L273 TraceCheckUtils]: 62: Hoare triple {19015#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19015#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,441 INFO L273 TraceCheckUtils]: 63: Hoare triple {19015#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19022#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,441 INFO L273 TraceCheckUtils]: 64: Hoare triple {19022#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19022#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,442 INFO L273 TraceCheckUtils]: 65: Hoare triple {19022#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19029#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,443 INFO L273 TraceCheckUtils]: 66: Hoare triple {19029#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19029#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,443 INFO L273 TraceCheckUtils]: 67: Hoare triple {19029#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19036#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,444 INFO L273 TraceCheckUtils]: 68: Hoare triple {19036#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19036#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,445 INFO L273 TraceCheckUtils]: 69: Hoare triple {19036#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19043#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 17:56:55,446 INFO L273 TraceCheckUtils]: 70: Hoare triple {19043#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {19043#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 17:56:55,446 INFO L273 TraceCheckUtils]: 71: Hoare triple {19043#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {19050#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,447 INFO L273 TraceCheckUtils]: 72: Hoare triple {19050#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19050#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,448 INFO L273 TraceCheckUtils]: 73: Hoare triple {19050#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19057#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,448 INFO L273 TraceCheckUtils]: 74: Hoare triple {19057#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19061#(and (<= main_i (* 4 main_n)) (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:56:55,449 INFO L273 TraceCheckUtils]: 75: Hoare triple {19061#(and (<= main_i (* 4 main_n)) (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {18797#(and (<= 38 main_n) (<= main_i 152))} is VALID [2018-12-18 17:56:55,450 INFO L273 TraceCheckUtils]: 76: Hoare triple {18797#(and (<= 38 main_n) (<= main_i 152))} assume !(i <= n * 4); {18757#false} is VALID [2018-12-18 17:56:55,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:56:55,464 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:56:59,643 INFO L273 TraceCheckUtils]: 76: Hoare triple {19068#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {18757#false} is VALID [2018-12-18 17:56:59,644 INFO L273 TraceCheckUtils]: 75: Hoare triple {19072#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {19068#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:56:59,645 INFO L273 TraceCheckUtils]: 74: Hoare triple {19076#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {19072#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:56:59,646 INFO L273 TraceCheckUtils]: 73: Hoare triple {19080#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {19076#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:56:59,646 INFO L273 TraceCheckUtils]: 72: Hoare triple {19080#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {19080#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:56:59,647 INFO L273 TraceCheckUtils]: 71: Hoare triple {19087#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {19080#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:56:59,647 INFO L273 TraceCheckUtils]: 70: Hoare triple {19087#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {19087#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:56:59,648 INFO L273 TraceCheckUtils]: 69: Hoare triple {19094#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {19087#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:56:59,648 INFO L273 TraceCheckUtils]: 68: Hoare triple {19094#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {19094#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:56:59,649 INFO L273 TraceCheckUtils]: 67: Hoare triple {19101#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {19094#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:56:59,650 INFO L273 TraceCheckUtils]: 66: Hoare triple {19101#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {19101#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:56:59,651 INFO L273 TraceCheckUtils]: 65: Hoare triple {19108#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19101#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:56:59,651 INFO L273 TraceCheckUtils]: 64: Hoare triple {19108#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {19108#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,652 INFO L273 TraceCheckUtils]: 63: Hoare triple {19115#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {19108#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,653 INFO L273 TraceCheckUtils]: 62: Hoare triple {19115#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {19115#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:56:59,654 INFO L273 TraceCheckUtils]: 61: Hoare triple {19122#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19115#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:56:59,655 INFO L273 TraceCheckUtils]: 60: Hoare triple {19122#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {19122#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,656 INFO L273 TraceCheckUtils]: 59: Hoare triple {19129#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19122#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,656 INFO L273 TraceCheckUtils]: 58: Hoare triple {19129#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {19129#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,657 INFO L273 TraceCheckUtils]: 57: Hoare triple {19136#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19129#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,658 INFO L273 TraceCheckUtils]: 56: Hoare triple {19136#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {19136#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,659 INFO L273 TraceCheckUtils]: 55: Hoare triple {19143#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {19136#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,659 INFO L273 TraceCheckUtils]: 54: Hoare triple {19143#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {19143#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:56:59,660 INFO L273 TraceCheckUtils]: 53: Hoare triple {19150#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19143#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:56:59,661 INFO L273 TraceCheckUtils]: 52: Hoare triple {19150#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {19150#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,662 INFO L273 TraceCheckUtils]: 51: Hoare triple {19157#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19150#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,662 INFO L273 TraceCheckUtils]: 50: Hoare triple {19157#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {19157#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,663 INFO L273 TraceCheckUtils]: 49: Hoare triple {19164#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {19157#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,664 INFO L273 TraceCheckUtils]: 48: Hoare triple {19164#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {19164#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:56:59,665 INFO L273 TraceCheckUtils]: 47: Hoare triple {19171#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19164#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:56:59,665 INFO L273 TraceCheckUtils]: 46: Hoare triple {19171#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {19171#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,667 INFO L273 TraceCheckUtils]: 45: Hoare triple {19178#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {19171#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,667 INFO L273 TraceCheckUtils]: 44: Hoare triple {19178#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {19178#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:56:59,668 INFO L273 TraceCheckUtils]: 43: Hoare triple {19185#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {19178#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:56:59,669 INFO L273 TraceCheckUtils]: 42: Hoare triple {19185#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {19185#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:56:59,670 INFO L273 TraceCheckUtils]: 41: Hoare triple {19192#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {19185#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:56:59,670 INFO L273 TraceCheckUtils]: 40: Hoare triple {19192#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {19192#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:56:59,671 INFO L273 TraceCheckUtils]: 39: Hoare triple {19199#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {19192#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:56:59,672 INFO L273 TraceCheckUtils]: 38: Hoare triple {19199#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {19199#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:56:59,673 INFO L273 TraceCheckUtils]: 37: Hoare triple {19206#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {19199#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:56:59,673 INFO L273 TraceCheckUtils]: 36: Hoare triple {19206#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {19206#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:56:59,674 INFO L273 TraceCheckUtils]: 35: Hoare triple {19213#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {19206#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:56:59,675 INFO L273 TraceCheckUtils]: 34: Hoare triple {19213#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {19213#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:56:59,680 INFO L273 TraceCheckUtils]: 33: Hoare triple {19220#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19213#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:56:59,680 INFO L273 TraceCheckUtils]: 32: Hoare triple {19220#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {19220#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,681 INFO L273 TraceCheckUtils]: 31: Hoare triple {19227#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19220#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,681 INFO L273 TraceCheckUtils]: 30: Hoare triple {19227#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {19227#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,682 INFO L273 TraceCheckUtils]: 29: Hoare triple {19234#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19227#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,682 INFO L273 TraceCheckUtils]: 28: Hoare triple {19234#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {19234#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,683 INFO L273 TraceCheckUtils]: 27: Hoare triple {19241#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {19234#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,683 INFO L273 TraceCheckUtils]: 26: Hoare triple {19241#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {19241#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:56:59,684 INFO L273 TraceCheckUtils]: 25: Hoare triple {19248#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19241#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:56:59,684 INFO L273 TraceCheckUtils]: 24: Hoare triple {19248#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {19248#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,685 INFO L273 TraceCheckUtils]: 23: Hoare triple {19255#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {19248#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,686 INFO L273 TraceCheckUtils]: 22: Hoare triple {19255#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {19255#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:56:59,687 INFO L273 TraceCheckUtils]: 21: Hoare triple {19262#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {19255#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:56:59,687 INFO L273 TraceCheckUtils]: 20: Hoare triple {19262#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {19262#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:56:59,689 INFO L273 TraceCheckUtils]: 19: Hoare triple {19269#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {19262#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:56:59,689 INFO L273 TraceCheckUtils]: 18: Hoare triple {19269#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {19269#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:56:59,690 INFO L273 TraceCheckUtils]: 17: Hoare triple {19276#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19269#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:56:59,691 INFO L273 TraceCheckUtils]: 16: Hoare triple {19276#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {19276#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,692 INFO L273 TraceCheckUtils]: 15: Hoare triple {19283#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19276#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,692 INFO L273 TraceCheckUtils]: 14: Hoare triple {19283#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {19283#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,693 INFO L273 TraceCheckUtils]: 13: Hoare triple {19290#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {19283#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,694 INFO L273 TraceCheckUtils]: 12: Hoare triple {19290#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {19290#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:56:59,695 INFO L273 TraceCheckUtils]: 11: Hoare triple {19297#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {19290#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:56:59,695 INFO L273 TraceCheckUtils]: 10: Hoare triple {19297#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {19297#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,696 INFO L273 TraceCheckUtils]: 9: Hoare triple {19304#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {19297#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:56:59,697 INFO L273 TraceCheckUtils]: 8: Hoare triple {19304#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {19304#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 17:56:59,698 INFO L273 TraceCheckUtils]: 7: Hoare triple {19311#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {19304#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 17:56:59,698 INFO L273 TraceCheckUtils]: 6: Hoare triple {19311#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {19311#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 17:56:59,700 INFO L273 TraceCheckUtils]: 5: Hoare triple {19318#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {19311#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 17:56:59,700 INFO L273 TraceCheckUtils]: 4: Hoare triple {19318#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {19318#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 17:56:59,701 INFO L273 TraceCheckUtils]: 3: Hoare triple {19325#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {19318#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 17:56:59,702 INFO L273 TraceCheckUtils]: 2: Hoare triple {19325#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {19325#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 17:56:59,703 INFO L273 TraceCheckUtils]: 1: Hoare triple {19332#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {19325#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 17:56:59,704 INFO L273 TraceCheckUtils]: 0: Hoare triple {18756#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {19332#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 17:56:59,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:56:59,744 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:56:59,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 119 [2018-12-18 17:56:59,745 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:56:59,745 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 77 [2018-12-18 17:56:59,745 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:56:59,745 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 81 states. [2018-12-18 17:56:59,927 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 153 edges. 153 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:56:59,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 81 states [2018-12-18 17:56:59,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2018-12-18 17:56:59,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1808, Invalid=12712, Unknown=0, NotChecked=0, Total=14520 [2018-12-18 17:56:59,929 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand 81 states. [2018-12-18 17:57:10,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:57:10,778 INFO L93 Difference]: Finished difference Result 82 states and 82 transitions. [2018-12-18 17:57:10,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-12-18 17:57:10,778 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 77 [2018-12-18 17:57:10,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:57:10,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-12-18 17:57:10,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 82 transitions. [2018-12-18 17:57:10,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-12-18 17:57:10,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 82 transitions. [2018-12-18 17:57:10,781 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 42 states and 82 transitions. [2018-12-18 17:57:10,871 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 82 edges. 82 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:57:10,872 INFO L225 Difference]: With dead ends: 82 [2018-12-18 17:57:10,872 INFO L226 Difference]: Without dead ends: 81 [2018-12-18 17:57:10,873 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3276 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=1808, Invalid=12712, Unknown=0, NotChecked=0, Total=14520 [2018-12-18 17:57:10,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-12-18 17:57:10,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 80. [2018-12-18 17:57:10,959 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:57:10,959 INFO L82 GeneralOperation]: Start isEquivalent. First operand 81 states. Second operand 80 states. [2018-12-18 17:57:10,959 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 80 states. [2018-12-18 17:57:10,959 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 80 states. [2018-12-18 17:57:10,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:57:10,961 INFO L93 Difference]: Finished difference Result 81 states and 81 transitions. [2018-12-18 17:57:10,961 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2018-12-18 17:57:10,961 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:57:10,961 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:57:10,961 INFO L74 IsIncluded]: Start isIncluded. First operand 80 states. Second operand 81 states. [2018-12-18 17:57:10,961 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 81 states. [2018-12-18 17:57:10,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:57:10,962 INFO L93 Difference]: Finished difference Result 81 states and 81 transitions. [2018-12-18 17:57:10,962 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2018-12-18 17:57:10,963 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:57:10,963 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:57:10,963 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:57:10,963 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:57:10,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-12-18 17:57:10,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 80 transitions. [2018-12-18 17:57:10,964 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 80 transitions. Word has length 77 [2018-12-18 17:57:10,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:57:10,965 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 80 transitions. [2018-12-18 17:57:10,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has 81 states. [2018-12-18 17:57:10,965 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 80 transitions. [2018-12-18 17:57:10,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-12-18 17:57:10,965 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:57:10,965 INFO L402 BasicCegarLoop]: trace histogram [39, 38, 1, 1] [2018-12-18 17:57:10,966 INFO L423 AbstractCegarLoop]: === Iteration 39 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:57:10,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:57:10,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1413541676, now seen corresponding path program 38 times [2018-12-18 17:57:10,966 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:57:10,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:57:10,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:57:10,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:57:10,967 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:57:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:57:13,084 INFO L273 TraceCheckUtils]: 0: Hoare triple {19738#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {19740#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 0)))} is VALID [2018-12-18 17:57:13,085 INFO L273 TraceCheckUtils]: 1: Hoare triple {19740#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {19741#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 4)))} is VALID [2018-12-18 17:57:13,086 INFO L273 TraceCheckUtils]: 2: Hoare triple {19741#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 4)))} assume i <= n * 4; {19741#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 4)))} is VALID [2018-12-18 17:57:13,087 INFO L273 TraceCheckUtils]: 3: Hoare triple {19741#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {19742#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 8) (<= main_n 38)))} is VALID [2018-12-18 17:57:13,088 INFO L273 TraceCheckUtils]: 4: Hoare triple {19742#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 8) (<= main_n 38)))} assume i <= n * 4; {19742#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 8) (<= main_n 38)))} is VALID [2018-12-18 17:57:13,089 INFO L273 TraceCheckUtils]: 5: Hoare triple {19742#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 8) (<= main_n 38)))} assume a[i] != 23;i := i + 4; {19743#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 12)))} is VALID [2018-12-18 17:57:13,090 INFO L273 TraceCheckUtils]: 6: Hoare triple {19743#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 12)))} assume i <= n * 4; {19743#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 12)))} is VALID [2018-12-18 17:57:13,091 INFO L273 TraceCheckUtils]: 7: Hoare triple {19743#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {19744#(and (or (<= main_n 38) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2018-12-18 17:57:13,092 INFO L273 TraceCheckUtils]: 8: Hoare triple {19744#(and (or (<= main_n 38) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19744#(and (or (<= main_n 38) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2018-12-18 17:57:13,093 INFO L273 TraceCheckUtils]: 9: Hoare triple {19744#(and (or (<= main_n 38) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19745#(and (or (< 38 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 20)))} is VALID [2018-12-18 17:57:13,094 INFO L273 TraceCheckUtils]: 10: Hoare triple {19745#(and (or (< 38 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 20)))} assume i <= n * 4; {19745#(and (or (< 38 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 20)))} is VALID [2018-12-18 17:57:13,095 INFO L273 TraceCheckUtils]: 11: Hoare triple {19745#(and (or (< 38 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {19746#(and (or (<= main_n 38) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2018-12-18 17:57:13,096 INFO L273 TraceCheckUtils]: 12: Hoare triple {19746#(and (or (<= main_n 38) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19746#(and (or (<= main_n 38) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2018-12-18 17:57:13,097 INFO L273 TraceCheckUtils]: 13: Hoare triple {19746#(and (or (<= main_n 38) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19747#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 28)))} is VALID [2018-12-18 17:57:13,098 INFO L273 TraceCheckUtils]: 14: Hoare triple {19747#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 28)))} assume i <= n * 4; {19747#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 28)))} is VALID [2018-12-18 17:57:13,099 INFO L273 TraceCheckUtils]: 15: Hoare triple {19747#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {19748#(and (or (<= main_i 32) (<= main_n 38)) (or (< 38 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:13,100 INFO L273 TraceCheckUtils]: 16: Hoare triple {19748#(and (or (<= main_i 32) (<= main_n 38)) (or (< 38 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {19748#(and (or (<= main_i 32) (<= main_n 38)) (or (< 38 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:13,101 INFO L273 TraceCheckUtils]: 17: Hoare triple {19748#(and (or (<= main_i 32) (<= main_n 38)) (or (< 38 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {19749#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 38 main_n)) (or (<= main_i 36) (<= main_n 38)))} is VALID [2018-12-18 17:57:13,102 INFO L273 TraceCheckUtils]: 18: Hoare triple {19749#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 38 main_n)) (or (<= main_i 36) (<= main_n 38)))} assume i <= n * 4; {19749#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 38 main_n)) (or (<= main_i 36) (<= main_n 38)))} is VALID [2018-12-18 17:57:13,103 INFO L273 TraceCheckUtils]: 19: Hoare triple {19749#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 38 main_n)) (or (<= main_i 36) (<= main_n 38)))} assume a[i] != 23;i := i + 4; {19750#(and (or (<= main_i 40) (<= main_n 38)) (or (< 38 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:13,103 INFO L273 TraceCheckUtils]: 20: Hoare triple {19750#(and (or (<= main_i 40) (<= main_n 38)) (or (< 38 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {19750#(and (or (<= main_i 40) (<= main_n 38)) (or (< 38 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:13,104 INFO L273 TraceCheckUtils]: 21: Hoare triple {19750#(and (or (<= main_i 40) (<= main_n 38)) (or (< 38 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {19751#(and (or (< 38 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 44)))} is VALID [2018-12-18 17:57:13,105 INFO L273 TraceCheckUtils]: 22: Hoare triple {19751#(and (or (< 38 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 44)))} assume i <= n * 4; {19751#(and (or (< 38 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 44)))} is VALID [2018-12-18 17:57:13,106 INFO L273 TraceCheckUtils]: 23: Hoare triple {19751#(and (or (< 38 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {19752#(and (or (<= main_n 38) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2018-12-18 17:57:13,107 INFO L273 TraceCheckUtils]: 24: Hoare triple {19752#(and (or (<= main_n 38) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19752#(and (or (<= main_n 38) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2018-12-18 17:57:13,108 INFO L273 TraceCheckUtils]: 25: Hoare triple {19752#(and (or (<= main_n 38) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19753#(and (or (<= main_i 52) (<= main_n 38)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2018-12-18 17:57:13,109 INFO L273 TraceCheckUtils]: 26: Hoare triple {19753#(and (or (<= main_i 52) (<= main_n 38)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19753#(and (or (<= main_i 52) (<= main_n 38)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2018-12-18 17:57:13,110 INFO L273 TraceCheckUtils]: 27: Hoare triple {19753#(and (or (<= main_i 52) (<= main_n 38)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19754#(and (or (<= main_n 38) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2018-12-18 17:57:13,111 INFO L273 TraceCheckUtils]: 28: Hoare triple {19754#(and (or (<= main_n 38) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19754#(and (or (<= main_n 38) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2018-12-18 17:57:13,112 INFO L273 TraceCheckUtils]: 29: Hoare triple {19754#(and (or (<= main_n 38) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19755#(and (or (<= main_n 38) (<= main_i 60)) (or (< 38 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:13,113 INFO L273 TraceCheckUtils]: 30: Hoare triple {19755#(and (or (<= main_n 38) (<= main_i 60)) (or (< 38 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {19755#(and (or (<= main_n 38) (<= main_i 60)) (or (< 38 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:13,114 INFO L273 TraceCheckUtils]: 31: Hoare triple {19755#(and (or (<= main_n 38) (<= main_i 60)) (or (< 38 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {19756#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 64) (<= main_n 38)))} is VALID [2018-12-18 17:57:13,115 INFO L273 TraceCheckUtils]: 32: Hoare triple {19756#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 64) (<= main_n 38)))} assume i <= n * 4; {19756#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 64) (<= main_n 38)))} is VALID [2018-12-18 17:57:13,116 INFO L273 TraceCheckUtils]: 33: Hoare triple {19756#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 64) (<= main_n 38)))} assume a[i] != 23;i := i + 4; {19757#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 68)))} is VALID [2018-12-18 17:57:13,117 INFO L273 TraceCheckUtils]: 34: Hoare triple {19757#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 68)))} assume i <= n * 4; {19757#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 68)))} is VALID [2018-12-18 17:57:13,118 INFO L273 TraceCheckUtils]: 35: Hoare triple {19757#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 68)))} assume a[i] != 23;i := i + 4; {19758#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 72)))} is VALID [2018-12-18 17:57:13,119 INFO L273 TraceCheckUtils]: 36: Hoare triple {19758#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 72)))} assume i <= n * 4; {19758#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 72)))} is VALID [2018-12-18 17:57:13,120 INFO L273 TraceCheckUtils]: 37: Hoare triple {19758#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 72)))} assume a[i] != 23;i := i + 4; {19759#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 76) (<= main_n 38)))} is VALID [2018-12-18 17:57:13,121 INFO L273 TraceCheckUtils]: 38: Hoare triple {19759#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 76) (<= main_n 38)))} assume i <= n * 4; {19759#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 76) (<= main_n 38)))} is VALID [2018-12-18 17:57:13,122 INFO L273 TraceCheckUtils]: 39: Hoare triple {19759#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 76) (<= main_n 38)))} assume a[i] != 23;i := i + 4; {19760#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 80)))} is VALID [2018-12-18 17:57:13,123 INFO L273 TraceCheckUtils]: 40: Hoare triple {19760#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 80)))} assume i <= n * 4; {19760#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 80)))} is VALID [2018-12-18 17:57:13,124 INFO L273 TraceCheckUtils]: 41: Hoare triple {19760#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_n 38) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {19761#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 38 main_n)) (or (<= main_i 84) (<= main_n 38)))} is VALID [2018-12-18 17:57:13,124 INFO L273 TraceCheckUtils]: 42: Hoare triple {19761#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 38 main_n)) (or (<= main_i 84) (<= main_n 38)))} assume i <= n * 4; {19761#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 38 main_n)) (or (<= main_i 84) (<= main_n 38)))} is VALID [2018-12-18 17:57:13,126 INFO L273 TraceCheckUtils]: 43: Hoare triple {19761#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 38 main_n)) (or (<= main_i 84) (<= main_n 38)))} assume a[i] != 23;i := i + 4; {19762#(and (or (<= main_i 88) (<= main_n 38)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2018-12-18 17:57:13,126 INFO L273 TraceCheckUtils]: 44: Hoare triple {19762#(and (or (<= main_i 88) (<= main_n 38)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19762#(and (or (<= main_i 88) (<= main_n 38)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2018-12-18 17:57:13,127 INFO L273 TraceCheckUtils]: 45: Hoare triple {19762#(and (or (<= main_i 88) (<= main_n 38)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19763#(and (or (<= main_i 92) (<= main_n 38)) (or (< 38 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:13,128 INFO L273 TraceCheckUtils]: 46: Hoare triple {19763#(and (or (<= main_i 92) (<= main_n 38)) (or (< 38 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {19763#(and (or (<= main_i 92) (<= main_n 38)) (or (< 38 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:13,129 INFO L273 TraceCheckUtils]: 47: Hoare triple {19763#(and (or (<= main_i 92) (<= main_n 38)) (or (< 38 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {19764#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 96) (<= main_n 38)))} is VALID [2018-12-18 17:57:13,130 INFO L273 TraceCheckUtils]: 48: Hoare triple {19764#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 96) (<= main_n 38)))} assume i <= n * 4; {19764#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 96) (<= main_n 38)))} is VALID [2018-12-18 17:57:13,131 INFO L273 TraceCheckUtils]: 49: Hoare triple {19764#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 96) (<= main_n 38)))} assume a[i] != 23;i := i + 4; {19765#(and (or (<= main_i 100) (<= main_n 38)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2018-12-18 17:57:13,132 INFO L273 TraceCheckUtils]: 50: Hoare triple {19765#(and (or (<= main_i 100) (<= main_n 38)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19765#(and (or (<= main_i 100) (<= main_n 38)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2018-12-18 17:57:13,133 INFO L273 TraceCheckUtils]: 51: Hoare triple {19765#(and (or (<= main_i 100) (<= main_n 38)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19766#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 104) (<= main_n 38)))} is VALID [2018-12-18 17:57:13,134 INFO L273 TraceCheckUtils]: 52: Hoare triple {19766#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 104) (<= main_n 38)))} assume i <= n * 4; {19766#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 104) (<= main_n 38)))} is VALID [2018-12-18 17:57:13,135 INFO L273 TraceCheckUtils]: 53: Hoare triple {19766#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)) (or (<= main_i 104) (<= main_n 38)))} assume a[i] != 23;i := i + 4; {19767#(and (or (<= main_n 38) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2018-12-18 17:57:13,136 INFO L273 TraceCheckUtils]: 54: Hoare triple {19767#(and (or (<= main_n 38) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19767#(and (or (<= main_n 38) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2018-12-18 17:57:13,137 INFO L273 TraceCheckUtils]: 55: Hoare triple {19767#(and (or (<= main_n 38) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19768#(and (or (<= main_n 38) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 38 main_n)))} is VALID [2018-12-18 17:57:13,138 INFO L273 TraceCheckUtils]: 56: Hoare triple {19768#(and (or (<= main_n 38) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 38 main_n)))} assume i <= n * 4; {19768#(and (or (<= main_n 38) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 38 main_n)))} is VALID [2018-12-18 17:57:13,139 INFO L273 TraceCheckUtils]: 57: Hoare triple {19768#(and (or (<= main_n 38) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19769#(and (or (< 38 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 116)))} is VALID [2018-12-18 17:57:13,140 INFO L273 TraceCheckUtils]: 58: Hoare triple {19769#(and (or (< 38 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 116)))} assume i <= n * 4; {19769#(and (or (< 38 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 116)))} is VALID [2018-12-18 17:57:13,141 INFO L273 TraceCheckUtils]: 59: Hoare triple {19769#(and (or (< 38 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 116)))} assume a[i] != 23;i := i + 4; {19770#(and (or (<= main_i 120) (<= main_n 38)) (or (< 38 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:13,142 INFO L273 TraceCheckUtils]: 60: Hoare triple {19770#(and (or (<= main_i 120) (<= main_n 38)) (or (< 38 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {19770#(and (or (<= main_i 120) (<= main_n 38)) (or (< 38 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:13,143 INFO L273 TraceCheckUtils]: 61: Hoare triple {19770#(and (or (<= main_i 120) (<= main_n 38)) (or (< 38 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {19771#(and (or (<= main_n 38) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2018-12-18 17:57:13,144 INFO L273 TraceCheckUtils]: 62: Hoare triple {19771#(and (or (<= main_n 38) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19771#(and (or (<= main_n 38) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2018-12-18 17:57:13,145 INFO L273 TraceCheckUtils]: 63: Hoare triple {19771#(and (or (<= main_n 38) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19772#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 128)))} is VALID [2018-12-18 17:57:13,146 INFO L273 TraceCheckUtils]: 64: Hoare triple {19772#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 128)))} assume i <= n * 4; {19772#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 128)))} is VALID [2018-12-18 17:57:13,147 INFO L273 TraceCheckUtils]: 65: Hoare triple {19772#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 128)))} assume a[i] != 23;i := i + 4; {19773#(and (or (<= main_i 132) (<= main_n 38)) (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2018-12-18 17:57:13,147 INFO L273 TraceCheckUtils]: 66: Hoare triple {19773#(and (or (<= main_i 132) (<= main_n 38)) (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume i <= n * 4; {19773#(and (or (<= main_i 132) (<= main_n 38)) (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} is VALID [2018-12-18 17:57:13,149 INFO L273 TraceCheckUtils]: 67: Hoare triple {19773#(and (or (<= main_i 132) (<= main_n 38)) (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 38 main_n)))} assume a[i] != 23;i := i + 4; {19774#(and (or (<= main_i 136) (<= main_n 38)) (or (< 38 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:13,149 INFO L273 TraceCheckUtils]: 68: Hoare triple {19774#(and (or (<= main_i 136) (<= main_n 38)) (or (< 38 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {19774#(and (or (<= main_i 136) (<= main_n 38)) (or (< 38 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:13,150 INFO L273 TraceCheckUtils]: 69: Hoare triple {19774#(and (or (<= main_i 136) (<= main_n 38)) (or (< 38 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {19775#(and (or (<= main_n 38) (<= main_i 140)) (or (< 38 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} is VALID [2018-12-18 17:57:13,151 INFO L273 TraceCheckUtils]: 70: Hoare triple {19775#(and (or (<= main_n 38) (<= main_i 140)) (or (< 38 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} assume i <= n * 4; {19775#(and (or (<= main_n 38) (<= main_i 140)) (or (< 38 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} is VALID [2018-12-18 17:57:13,152 INFO L273 TraceCheckUtils]: 71: Hoare triple {19775#(and (or (<= main_n 38) (<= main_i 140)) (or (< 38 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} assume a[i] != 23;i := i + 4; {19776#(and (or (<= main_n 38) (<= main_i 144)) (or (< 38 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:13,153 INFO L273 TraceCheckUtils]: 72: Hoare triple {19776#(and (or (<= main_n 38) (<= main_i 144)) (or (< 38 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {19776#(and (or (<= main_n 38) (<= main_i 144)) (or (< 38 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:13,154 INFO L273 TraceCheckUtils]: 73: Hoare triple {19776#(and (or (<= main_n 38) (<= main_i 144)) (or (< 38 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {19777#(and (or (< 38 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 148)))} is VALID [2018-12-18 17:57:13,155 INFO L273 TraceCheckUtils]: 74: Hoare triple {19777#(and (or (< 38 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 148)))} assume i <= n * 4; {19777#(and (or (< 38 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 148)))} is VALID [2018-12-18 17:57:13,156 INFO L273 TraceCheckUtils]: 75: Hoare triple {19777#(and (or (< 38 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 38) (<= main_i 148)))} assume a[i] != 23;i := i + 4; {19778#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 152)))} is VALID [2018-12-18 17:57:13,157 INFO L273 TraceCheckUtils]: 76: Hoare triple {19778#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 38 main_n)) (or (<= main_n 38) (<= main_i 152)))} assume i <= n * 4; {19779#(and (or (< 38 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 152))} is VALID [2018-12-18 17:57:13,158 INFO L273 TraceCheckUtils]: 77: Hoare triple {19779#(and (or (< 38 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 152))} assume a[i] != 23;i := i + 4; {19780#(and (<= main_i 156) (< 38 main_n))} is VALID [2018-12-18 17:57:13,159 INFO L273 TraceCheckUtils]: 78: Hoare triple {19780#(and (<= main_i 156) (< 38 main_n))} assume !(i <= n * 4); {19739#false} is VALID [2018-12-18 17:57:13,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 1482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:57:13,187 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:57:13,187 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:57:13,187 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:57:13,187 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:57:13,187 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:57:13,187 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:57:13,195 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-18 17:57:13,195 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-18 17:57:13,250 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 39 check-sat command(s) [2018-12-18 17:57:13,250 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:57:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:57:13,267 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:57:13,303 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:57:13,305 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:57:13,310 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:57:13,311 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:57:13,313 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:57:13,314 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_42]. (and (= (store v_main_a_42 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:57:13,314 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:57:15,859 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:57:15,861 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:57:15,867 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:57:15,868 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:57:15,870 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:57:15,870 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 156) (<= 152 .cse0) (not (= (select main_a 152) 23)) (= 23 (select main_a .cse0)))) [2018-12-18 17:57:15,871 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 156) (<= 152 .cse0) (not (= 152 .cse0)))) [2018-12-18 17:57:15,925 INFO L273 TraceCheckUtils]: 0: Hoare triple {19738#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {19784#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,926 INFO L273 TraceCheckUtils]: 1: Hoare triple {19784#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19788#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:57:15,926 INFO L273 TraceCheckUtils]: 2: Hoare triple {19788#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {19788#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:57:15,927 INFO L273 TraceCheckUtils]: 3: Hoare triple {19788#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {19795#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,927 INFO L273 TraceCheckUtils]: 4: Hoare triple {19795#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19795#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,928 INFO L273 TraceCheckUtils]: 5: Hoare triple {19795#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19802#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:57:15,928 INFO L273 TraceCheckUtils]: 6: Hoare triple {19802#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {19802#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:57:15,929 INFO L273 TraceCheckUtils]: 7: Hoare triple {19802#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {19809#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,930 INFO L273 TraceCheckUtils]: 8: Hoare triple {19809#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19809#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,930 INFO L273 TraceCheckUtils]: 9: Hoare triple {19809#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19816#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,931 INFO L273 TraceCheckUtils]: 10: Hoare triple {19816#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19816#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,932 INFO L273 TraceCheckUtils]: 11: Hoare triple {19816#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19823#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,933 INFO L273 TraceCheckUtils]: 12: Hoare triple {19823#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19823#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,933 INFO L273 TraceCheckUtils]: 13: Hoare triple {19823#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19830#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,934 INFO L273 TraceCheckUtils]: 14: Hoare triple {19830#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19830#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,935 INFO L273 TraceCheckUtils]: 15: Hoare triple {19830#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19837#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,935 INFO L273 TraceCheckUtils]: 16: Hoare triple {19837#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19837#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,936 INFO L273 TraceCheckUtils]: 17: Hoare triple {19837#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19844#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,937 INFO L273 TraceCheckUtils]: 18: Hoare triple {19844#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19844#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,937 INFO L273 TraceCheckUtils]: 19: Hoare triple {19844#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19851#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,938 INFO L273 TraceCheckUtils]: 20: Hoare triple {19851#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19851#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,939 INFO L273 TraceCheckUtils]: 21: Hoare triple {19851#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19858#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,939 INFO L273 TraceCheckUtils]: 22: Hoare triple {19858#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19858#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,940 INFO L273 TraceCheckUtils]: 23: Hoare triple {19858#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19865#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,941 INFO L273 TraceCheckUtils]: 24: Hoare triple {19865#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19865#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,942 INFO L273 TraceCheckUtils]: 25: Hoare triple {19865#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19872#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,942 INFO L273 TraceCheckUtils]: 26: Hoare triple {19872#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19872#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,943 INFO L273 TraceCheckUtils]: 27: Hoare triple {19872#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19879#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,944 INFO L273 TraceCheckUtils]: 28: Hoare triple {19879#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19879#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,944 INFO L273 TraceCheckUtils]: 29: Hoare triple {19879#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19886#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,945 INFO L273 TraceCheckUtils]: 30: Hoare triple {19886#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19886#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,946 INFO L273 TraceCheckUtils]: 31: Hoare triple {19886#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19893#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,946 INFO L273 TraceCheckUtils]: 32: Hoare triple {19893#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19893#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,947 INFO L273 TraceCheckUtils]: 33: Hoare triple {19893#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19900#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,948 INFO L273 TraceCheckUtils]: 34: Hoare triple {19900#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19900#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,948 INFO L273 TraceCheckUtils]: 35: Hoare triple {19900#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19907#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,949 INFO L273 TraceCheckUtils]: 36: Hoare triple {19907#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19907#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,950 INFO L273 TraceCheckUtils]: 37: Hoare triple {19907#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19914#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,951 INFO L273 TraceCheckUtils]: 38: Hoare triple {19914#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19914#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,951 INFO L273 TraceCheckUtils]: 39: Hoare triple {19914#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19921#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:57:15,952 INFO L273 TraceCheckUtils]: 40: Hoare triple {19921#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {19921#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:57:15,953 INFO L273 TraceCheckUtils]: 41: Hoare triple {19921#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {19928#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,953 INFO L273 TraceCheckUtils]: 42: Hoare triple {19928#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19928#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,954 INFO L273 TraceCheckUtils]: 43: Hoare triple {19928#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19935#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,955 INFO L273 TraceCheckUtils]: 44: Hoare triple {19935#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19935#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,956 INFO L273 TraceCheckUtils]: 45: Hoare triple {19935#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19942#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,956 INFO L273 TraceCheckUtils]: 46: Hoare triple {19942#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19942#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,957 INFO L273 TraceCheckUtils]: 47: Hoare triple {19942#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19949#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,958 INFO L273 TraceCheckUtils]: 48: Hoare triple {19949#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19949#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,959 INFO L273 TraceCheckUtils]: 49: Hoare triple {19949#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19956#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,959 INFO L273 TraceCheckUtils]: 50: Hoare triple {19956#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19956#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,960 INFO L273 TraceCheckUtils]: 51: Hoare triple {19956#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19963#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,961 INFO L273 TraceCheckUtils]: 52: Hoare triple {19963#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19963#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,961 INFO L273 TraceCheckUtils]: 53: Hoare triple {19963#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19970#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,962 INFO L273 TraceCheckUtils]: 54: Hoare triple {19970#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19970#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,963 INFO L273 TraceCheckUtils]: 55: Hoare triple {19970#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19977#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,964 INFO L273 TraceCheckUtils]: 56: Hoare triple {19977#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19977#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,964 INFO L273 TraceCheckUtils]: 57: Hoare triple {19977#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19984#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,965 INFO L273 TraceCheckUtils]: 58: Hoare triple {19984#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19984#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,966 INFO L273 TraceCheckUtils]: 59: Hoare triple {19984#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19991#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,966 INFO L273 TraceCheckUtils]: 60: Hoare triple {19991#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19991#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,967 INFO L273 TraceCheckUtils]: 61: Hoare triple {19991#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19998#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,968 INFO L273 TraceCheckUtils]: 62: Hoare triple {19998#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {19998#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,969 INFO L273 TraceCheckUtils]: 63: Hoare triple {19998#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20005#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,969 INFO L273 TraceCheckUtils]: 64: Hoare triple {20005#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20005#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,970 INFO L273 TraceCheckUtils]: 65: Hoare triple {20005#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20012#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,971 INFO L273 TraceCheckUtils]: 66: Hoare triple {20012#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20012#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,972 INFO L273 TraceCheckUtils]: 67: Hoare triple {20012#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20019#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,972 INFO L273 TraceCheckUtils]: 68: Hoare triple {20019#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20019#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,973 INFO L273 TraceCheckUtils]: 69: Hoare triple {20019#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20026#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 17:57:15,974 INFO L273 TraceCheckUtils]: 70: Hoare triple {20026#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {20026#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 17:57:15,975 INFO L273 TraceCheckUtils]: 71: Hoare triple {20026#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {20033#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,975 INFO L273 TraceCheckUtils]: 72: Hoare triple {20033#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20033#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,976 INFO L273 TraceCheckUtils]: 73: Hoare triple {20033#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20040#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,977 INFO L273 TraceCheckUtils]: 74: Hoare triple {20040#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20040#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,977 INFO L273 TraceCheckUtils]: 75: Hoare triple {20040#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20047#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,978 INFO L273 TraceCheckUtils]: 76: Hoare triple {20047#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20051#(and (<= main_i (* 4 main_n)) (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:15,979 INFO L273 TraceCheckUtils]: 77: Hoare triple {20051#(and (<= main_i (* 4 main_n)) (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {19780#(and (<= main_i 156) (< 38 main_n))} is VALID [2018-12-18 17:57:15,980 INFO L273 TraceCheckUtils]: 78: Hoare triple {19780#(and (<= main_i 156) (< 38 main_n))} assume !(i <= n * 4); {19739#false} is VALID [2018-12-18 17:57:15,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 1482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:57:15,995 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:57:20,456 INFO L273 TraceCheckUtils]: 78: Hoare triple {20058#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {19739#false} is VALID [2018-12-18 17:57:20,457 INFO L273 TraceCheckUtils]: 77: Hoare triple {20062#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {20058#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:57:20,458 INFO L273 TraceCheckUtils]: 76: Hoare triple {20066#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {20062#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:57:20,459 INFO L273 TraceCheckUtils]: 75: Hoare triple {20070#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {20066#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:57:20,459 INFO L273 TraceCheckUtils]: 74: Hoare triple {20070#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {20070#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:57:20,460 INFO L273 TraceCheckUtils]: 73: Hoare triple {20077#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {20070#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:57:20,461 INFO L273 TraceCheckUtils]: 72: Hoare triple {20077#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {20077#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:57:20,462 INFO L273 TraceCheckUtils]: 71: Hoare triple {20084#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {20077#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:57:20,462 INFO L273 TraceCheckUtils]: 70: Hoare triple {20084#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {20084#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:57:20,464 INFO L273 TraceCheckUtils]: 69: Hoare triple {20091#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {20084#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:57:20,464 INFO L273 TraceCheckUtils]: 68: Hoare triple {20091#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {20091#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:57:20,465 INFO L273 TraceCheckUtils]: 67: Hoare triple {20098#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20091#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:57:20,466 INFO L273 TraceCheckUtils]: 66: Hoare triple {20098#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {20098#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,467 INFO L273 TraceCheckUtils]: 65: Hoare triple {20105#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {20098#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,467 INFO L273 TraceCheckUtils]: 64: Hoare triple {20105#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {20105#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:57:20,468 INFO L273 TraceCheckUtils]: 63: Hoare triple {20112#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20105#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:57:20,469 INFO L273 TraceCheckUtils]: 62: Hoare triple {20112#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {20112#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,470 INFO L273 TraceCheckUtils]: 61: Hoare triple {20119#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20112#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,470 INFO L273 TraceCheckUtils]: 60: Hoare triple {20119#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {20119#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,471 INFO L273 TraceCheckUtils]: 59: Hoare triple {20126#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20119#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,472 INFO L273 TraceCheckUtils]: 58: Hoare triple {20126#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {20126#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,473 INFO L273 TraceCheckUtils]: 57: Hoare triple {20133#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {20126#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,473 INFO L273 TraceCheckUtils]: 56: Hoare triple {20133#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {20133#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:57:20,474 INFO L273 TraceCheckUtils]: 55: Hoare triple {20140#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20133#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:57:20,475 INFO L273 TraceCheckUtils]: 54: Hoare triple {20140#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {20140#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,476 INFO L273 TraceCheckUtils]: 53: Hoare triple {20147#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20140#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,477 INFO L273 TraceCheckUtils]: 52: Hoare triple {20147#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {20147#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,478 INFO L273 TraceCheckUtils]: 51: Hoare triple {20154#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {20147#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,478 INFO L273 TraceCheckUtils]: 50: Hoare triple {20154#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {20154#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:57:20,479 INFO L273 TraceCheckUtils]: 49: Hoare triple {20161#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20154#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:57:20,480 INFO L273 TraceCheckUtils]: 48: Hoare triple {20161#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {20161#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,481 INFO L273 TraceCheckUtils]: 47: Hoare triple {20168#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {20161#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,481 INFO L273 TraceCheckUtils]: 46: Hoare triple {20168#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {20168#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:57:20,482 INFO L273 TraceCheckUtils]: 45: Hoare triple {20175#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {20168#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:57:20,483 INFO L273 TraceCheckUtils]: 44: Hoare triple {20175#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {20175#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:57:20,484 INFO L273 TraceCheckUtils]: 43: Hoare triple {20182#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {20175#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:57:20,484 INFO L273 TraceCheckUtils]: 42: Hoare triple {20182#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {20182#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:57:20,485 INFO L273 TraceCheckUtils]: 41: Hoare triple {20189#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {20182#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:57:20,486 INFO L273 TraceCheckUtils]: 40: Hoare triple {20189#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {20189#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:57:20,487 INFO L273 TraceCheckUtils]: 39: Hoare triple {20196#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {20189#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:57:20,487 INFO L273 TraceCheckUtils]: 38: Hoare triple {20196#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {20196#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:57:20,489 INFO L273 TraceCheckUtils]: 37: Hoare triple {20203#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {20196#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:57:20,489 INFO L273 TraceCheckUtils]: 36: Hoare triple {20203#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {20203#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:57:20,490 INFO L273 TraceCheckUtils]: 35: Hoare triple {20210#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20203#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:57:20,491 INFO L273 TraceCheckUtils]: 34: Hoare triple {20210#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {20210#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,492 INFO L273 TraceCheckUtils]: 33: Hoare triple {20217#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20210#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,492 INFO L273 TraceCheckUtils]: 32: Hoare triple {20217#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {20217#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,494 INFO L273 TraceCheckUtils]: 31: Hoare triple {20224#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20217#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,494 INFO L273 TraceCheckUtils]: 30: Hoare triple {20224#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {20224#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,495 INFO L273 TraceCheckUtils]: 29: Hoare triple {20231#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {20224#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,496 INFO L273 TraceCheckUtils]: 28: Hoare triple {20231#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {20231#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:57:20,497 INFO L273 TraceCheckUtils]: 27: Hoare triple {20238#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20231#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:57:20,497 INFO L273 TraceCheckUtils]: 26: Hoare triple {20238#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {20238#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,498 INFO L273 TraceCheckUtils]: 25: Hoare triple {20245#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {20238#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,499 INFO L273 TraceCheckUtils]: 24: Hoare triple {20245#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {20245#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:57:20,500 INFO L273 TraceCheckUtils]: 23: Hoare triple {20252#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {20245#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:57:20,500 INFO L273 TraceCheckUtils]: 22: Hoare triple {20252#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {20252#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:57:20,502 INFO L273 TraceCheckUtils]: 21: Hoare triple {20259#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {20252#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:57:20,502 INFO L273 TraceCheckUtils]: 20: Hoare triple {20259#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {20259#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:57:20,503 INFO L273 TraceCheckUtils]: 19: Hoare triple {20266#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20259#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:57:20,504 INFO L273 TraceCheckUtils]: 18: Hoare triple {20266#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {20266#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,505 INFO L273 TraceCheckUtils]: 17: Hoare triple {20273#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20266#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,505 INFO L273 TraceCheckUtils]: 16: Hoare triple {20273#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {20273#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,506 INFO L273 TraceCheckUtils]: 15: Hoare triple {20280#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {20273#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,507 INFO L273 TraceCheckUtils]: 14: Hoare triple {20280#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {20280#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:57:20,508 INFO L273 TraceCheckUtils]: 13: Hoare triple {20287#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {20280#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:57:20,508 INFO L273 TraceCheckUtils]: 12: Hoare triple {20287#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {20287#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,510 INFO L273 TraceCheckUtils]: 11: Hoare triple {20294#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {20287#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:57:20,510 INFO L273 TraceCheckUtils]: 10: Hoare triple {20294#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {20294#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 17:57:20,511 INFO L273 TraceCheckUtils]: 9: Hoare triple {20301#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {20294#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 17:57:20,512 INFO L273 TraceCheckUtils]: 8: Hoare triple {20301#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {20301#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 17:57:20,513 INFO L273 TraceCheckUtils]: 7: Hoare triple {20308#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {20301#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 17:57:20,513 INFO L273 TraceCheckUtils]: 6: Hoare triple {20308#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {20308#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 17:57:20,515 INFO L273 TraceCheckUtils]: 5: Hoare triple {20315#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {20308#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 17:57:20,515 INFO L273 TraceCheckUtils]: 4: Hoare triple {20315#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {20315#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 17:57:20,516 INFO L273 TraceCheckUtils]: 3: Hoare triple {20322#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {20315#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 17:57:20,517 INFO L273 TraceCheckUtils]: 2: Hoare triple {20322#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {20322#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 17:57:20,518 INFO L273 TraceCheckUtils]: 1: Hoare triple {20329#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {20322#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 17:57:20,519 INFO L273 TraceCheckUtils]: 0: Hoare triple {19738#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {20329#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 17:57:20,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 1482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:57:20,561 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:57:20,561 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41, 41] total 122 [2018-12-18 17:57:20,562 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:57:20,562 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 79 [2018-12-18 17:57:20,562 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:57:20,562 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 83 states. [2018-12-18 17:57:20,750 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 157 edges. 157 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:57:20,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 83 states [2018-12-18 17:57:20,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2018-12-18 17:57:20,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1894, Invalid=13358, Unknown=0, NotChecked=0, Total=15252 [2018-12-18 17:57:20,751 INFO L87 Difference]: Start difference. First operand 80 states and 80 transitions. Second operand 83 states. [2018-12-18 17:57:30,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:57:30,465 INFO L93 Difference]: Finished difference Result 84 states and 84 transitions. [2018-12-18 17:57:30,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-12-18 17:57:30,465 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 79 [2018-12-18 17:57:30,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:57:30,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-12-18 17:57:30,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 84 transitions. [2018-12-18 17:57:30,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-12-18 17:57:30,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 84 transitions. [2018-12-18 17:57:30,468 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 43 states and 84 transitions. [2018-12-18 17:57:30,559 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 84 edges. 84 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:57:30,560 INFO L225 Difference]: With dead ends: 84 [2018-12-18 17:57:30,560 INFO L226 Difference]: Without dead ends: 83 [2018-12-18 17:57:30,561 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3440 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=1894, Invalid=13358, Unknown=0, NotChecked=0, Total=15252 [2018-12-18 17:57:30,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-12-18 17:57:30,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2018-12-18 17:57:30,647 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:57:30,647 INFO L82 GeneralOperation]: Start isEquivalent. First operand 83 states. Second operand 82 states. [2018-12-18 17:57:30,647 INFO L74 IsIncluded]: Start isIncluded. First operand 83 states. Second operand 82 states. [2018-12-18 17:57:30,647 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 82 states. [2018-12-18 17:57:30,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:57:30,648 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2018-12-18 17:57:30,649 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 83 transitions. [2018-12-18 17:57:30,649 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:57:30,649 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:57:30,649 INFO L74 IsIncluded]: Start isIncluded. First operand 82 states. Second operand 83 states. [2018-12-18 17:57:30,649 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 83 states. [2018-12-18 17:57:30,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:57:30,650 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2018-12-18 17:57:30,650 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 83 transitions. [2018-12-18 17:57:30,651 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:57:30,651 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:57:30,651 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:57:30,651 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:57:30,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-12-18 17:57:30,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2018-12-18 17:57:30,652 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 79 [2018-12-18 17:57:30,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:57:30,652 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2018-12-18 17:57:30,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has 83 states. [2018-12-18 17:57:30,652 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2018-12-18 17:57:30,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-12-18 17:57:30,652 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:57:30,653 INFO L402 BasicCegarLoop]: trace histogram [40, 39, 1, 1] [2018-12-18 17:57:30,653 INFO L423 AbstractCegarLoop]: === Iteration 40 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:57:30,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:57:30,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1203886190, now seen corresponding path program 39 times [2018-12-18 17:57:30,653 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:57:30,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:57:30,654 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:57:30,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:57:30,654 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:57:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:57:31,023 WARN L181 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-12-18 17:57:33,112 INFO L273 TraceCheckUtils]: 0: Hoare triple {20745#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {20747#(and (or (<= main_n 39) (<= main_i 0)) (or (< 39 main_n) (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,113 INFO L273 TraceCheckUtils]: 1: Hoare triple {20747#(and (or (<= main_n 39) (<= main_i 0)) (or (< 39 main_n) (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20748#(and (or (<= main_n 39) (<= main_i 4)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2018-12-18 17:57:33,114 INFO L273 TraceCheckUtils]: 2: Hoare triple {20748#(and (or (<= main_n 39) (<= main_i 4)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {20748#(and (or (<= main_n 39) (<= main_i 4)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2018-12-18 17:57:33,115 INFO L273 TraceCheckUtils]: 3: Hoare triple {20748#(and (or (<= main_n 39) (<= main_i 4)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {20749#(and (or (< 39 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 39)))} is VALID [2018-12-18 17:57:33,116 INFO L273 TraceCheckUtils]: 4: Hoare triple {20749#(and (or (< 39 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 39)))} assume i <= n * 4; {20749#(and (or (< 39 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 39)))} is VALID [2018-12-18 17:57:33,117 INFO L273 TraceCheckUtils]: 5: Hoare triple {20749#(and (or (< 39 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 39)))} assume a[i] != 23;i := i + 4; {20750#(and (or (< 39 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 12)))} is VALID [2018-12-18 17:57:33,118 INFO L273 TraceCheckUtils]: 6: Hoare triple {20750#(and (or (< 39 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 12)))} assume i <= n * 4; {20750#(and (or (< 39 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 12)))} is VALID [2018-12-18 17:57:33,119 INFO L273 TraceCheckUtils]: 7: Hoare triple {20750#(and (or (< 39 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {20751#(and (or (< 39 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 16)))} is VALID [2018-12-18 17:57:33,119 INFO L273 TraceCheckUtils]: 8: Hoare triple {20751#(and (or (< 39 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 16)))} assume i <= n * 4; {20751#(and (or (< 39 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 16)))} is VALID [2018-12-18 17:57:33,121 INFO L273 TraceCheckUtils]: 9: Hoare triple {20751#(and (or (< 39 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {20752#(and (or (< 39 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 20)))} is VALID [2018-12-18 17:57:33,121 INFO L273 TraceCheckUtils]: 10: Hoare triple {20752#(and (or (< 39 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 20)))} assume i <= n * 4; {20752#(and (or (< 39 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 20)))} is VALID [2018-12-18 17:57:33,122 INFO L273 TraceCheckUtils]: 11: Hoare triple {20752#(and (or (< 39 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {20753#(and (or (<= main_n 39) (<= main_i 24)) (or (< 39 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,123 INFO L273 TraceCheckUtils]: 12: Hoare triple {20753#(and (or (<= main_n 39) (<= main_i 24)) (or (< 39 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20753#(and (or (<= main_n 39) (<= main_i 24)) (or (< 39 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,124 INFO L273 TraceCheckUtils]: 13: Hoare triple {20753#(and (or (<= main_n 39) (<= main_i 24)) (or (< 39 main_n) (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20754#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)) (or (<= main_n 39) (<= main_i 28)))} is VALID [2018-12-18 17:57:33,125 INFO L273 TraceCheckUtils]: 14: Hoare triple {20754#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)) (or (<= main_n 39) (<= main_i 28)))} assume i <= n * 4; {20754#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)) (or (<= main_n 39) (<= main_i 28)))} is VALID [2018-12-18 17:57:33,126 INFO L273 TraceCheckUtils]: 15: Hoare triple {20754#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)) (or (<= main_n 39) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {20755#(and (or (<= main_i 32) (<= main_n 39)) (or (< 39 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,127 INFO L273 TraceCheckUtils]: 16: Hoare triple {20755#(and (or (<= main_i 32) (<= main_n 39)) (or (< 39 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20755#(and (or (<= main_i 32) (<= main_n 39)) (or (< 39 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,128 INFO L273 TraceCheckUtils]: 17: Hoare triple {20755#(and (or (<= main_i 32) (<= main_n 39)) (or (< 39 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20756#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))) (or (<= main_i 36) (<= main_n 39)))} is VALID [2018-12-18 17:57:33,129 INFO L273 TraceCheckUtils]: 18: Hoare triple {20756#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))) (or (<= main_i 36) (<= main_n 39)))} assume i <= n * 4; {20756#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))) (or (<= main_i 36) (<= main_n 39)))} is VALID [2018-12-18 17:57:33,130 INFO L273 TraceCheckUtils]: 19: Hoare triple {20756#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))) (or (<= main_i 36) (<= main_n 39)))} assume a[i] != 23;i := i + 4; {20757#(and (or (<= main_i 40) (<= main_n 39)) (or (< 39 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,130 INFO L273 TraceCheckUtils]: 20: Hoare triple {20757#(and (or (<= main_i 40) (<= main_n 39)) (or (< 39 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20757#(and (or (<= main_i 40) (<= main_n 39)) (or (< 39 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,131 INFO L273 TraceCheckUtils]: 21: Hoare triple {20757#(and (or (<= main_i 40) (<= main_n 39)) (or (< 39 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20758#(and (or (< 39 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 44)))} is VALID [2018-12-18 17:57:33,132 INFO L273 TraceCheckUtils]: 22: Hoare triple {20758#(and (or (< 39 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 44)))} assume i <= n * 4; {20758#(and (or (< 39 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 44)))} is VALID [2018-12-18 17:57:33,133 INFO L273 TraceCheckUtils]: 23: Hoare triple {20758#(and (or (< 39 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {20759#(and (or (<= main_n 39) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)))} is VALID [2018-12-18 17:57:33,134 INFO L273 TraceCheckUtils]: 24: Hoare triple {20759#(and (or (<= main_n 39) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)))} assume i <= n * 4; {20759#(and (or (<= main_n 39) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)))} is VALID [2018-12-18 17:57:33,135 INFO L273 TraceCheckUtils]: 25: Hoare triple {20759#(and (or (<= main_n 39) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 39 main_n)))} assume a[i] != 23;i := i + 4; {20760#(and (or (< 39 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 39)))} is VALID [2018-12-18 17:57:33,136 INFO L273 TraceCheckUtils]: 26: Hoare triple {20760#(and (or (< 39 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 39)))} assume i <= n * 4; {20760#(and (or (< 39 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 39)))} is VALID [2018-12-18 17:57:33,137 INFO L273 TraceCheckUtils]: 27: Hoare triple {20760#(and (or (< 39 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 39)))} assume a[i] != 23;i := i + 4; {20761#(and (or (<= main_n 39) (<= main_i 56)) (or (< 39 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,138 INFO L273 TraceCheckUtils]: 28: Hoare triple {20761#(and (or (<= main_n 39) (<= main_i 56)) (or (< 39 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20761#(and (or (<= main_n 39) (<= main_i 56)) (or (< 39 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,139 INFO L273 TraceCheckUtils]: 29: Hoare triple {20761#(and (or (<= main_n 39) (<= main_i 56)) (or (< 39 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20762#(and (or (<= main_n 39) (<= main_i 60)) (or (< 39 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,140 INFO L273 TraceCheckUtils]: 30: Hoare triple {20762#(and (or (<= main_n 39) (<= main_i 60)) (or (< 39 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20762#(and (or (<= main_n 39) (<= main_i 60)) (or (< 39 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,141 INFO L273 TraceCheckUtils]: 31: Hoare triple {20762#(and (or (<= main_n 39) (<= main_i 60)) (or (< 39 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20763#(and (or (< 39 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 64)))} is VALID [2018-12-18 17:57:33,142 INFO L273 TraceCheckUtils]: 32: Hoare triple {20763#(and (or (< 39 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 64)))} assume i <= n * 4; {20763#(and (or (< 39 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 64)))} is VALID [2018-12-18 17:57:33,143 INFO L273 TraceCheckUtils]: 33: Hoare triple {20763#(and (or (< 39 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 64)))} assume a[i] != 23;i := i + 4; {20764#(and (or (<= main_n 39) (<= main_i 68)) (or (< 39 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,143 INFO L273 TraceCheckUtils]: 34: Hoare triple {20764#(and (or (<= main_n 39) (<= main_i 68)) (or (< 39 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20764#(and (or (<= main_n 39) (<= main_i 68)) (or (< 39 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,145 INFO L273 TraceCheckUtils]: 35: Hoare triple {20764#(and (or (<= main_n 39) (<= main_i 68)) (or (< 39 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20765#(and (or (<= main_n 39) (<= main_i 72)) (or (< 39 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,145 INFO L273 TraceCheckUtils]: 36: Hoare triple {20765#(and (or (<= main_n 39) (<= main_i 72)) (or (< 39 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20765#(and (or (<= main_n 39) (<= main_i 72)) (or (< 39 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,146 INFO L273 TraceCheckUtils]: 37: Hoare triple {20765#(and (or (<= main_n 39) (<= main_i 72)) (or (< 39 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20766#(and (or (<= main_i 76) (<= main_n 39)) (or (< 39 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,147 INFO L273 TraceCheckUtils]: 38: Hoare triple {20766#(and (or (<= main_i 76) (<= main_n 39)) (or (< 39 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20766#(and (or (<= main_i 76) (<= main_n 39)) (or (< 39 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,148 INFO L273 TraceCheckUtils]: 39: Hoare triple {20766#(and (or (<= main_i 76) (<= main_n 39)) (or (< 39 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20767#(and (or (<= main_n 39) (<= main_i 80)) (or (< 39 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,149 INFO L273 TraceCheckUtils]: 40: Hoare triple {20767#(and (or (<= main_n 39) (<= main_i 80)) (or (< 39 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20767#(and (or (<= main_n 39) (<= main_i 80)) (or (< 39 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,150 INFO L273 TraceCheckUtils]: 41: Hoare triple {20767#(and (or (<= main_n 39) (<= main_i 80)) (or (< 39 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20768#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 39) (<= main_i 84)))} is VALID [2018-12-18 17:57:33,151 INFO L273 TraceCheckUtils]: 42: Hoare triple {20768#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 39) (<= main_i 84)))} assume i <= n * 4; {20768#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 39) (<= main_i 84)))} is VALID [2018-12-18 17:57:33,152 INFO L273 TraceCheckUtils]: 43: Hoare triple {20768#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 39) (<= main_i 84)))} assume a[i] != 23;i := i + 4; {20769#(and (or (<= main_i 88) (<= main_n 39)) (or (< 39 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,153 INFO L273 TraceCheckUtils]: 44: Hoare triple {20769#(and (or (<= main_i 88) (<= main_n 39)) (or (< 39 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20769#(and (or (<= main_i 88) (<= main_n 39)) (or (< 39 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,154 INFO L273 TraceCheckUtils]: 45: Hoare triple {20769#(and (or (<= main_i 88) (<= main_n 39)) (or (< 39 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20770#(and (or (< 39 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 39)))} is VALID [2018-12-18 17:57:33,155 INFO L273 TraceCheckUtils]: 46: Hoare triple {20770#(and (or (< 39 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 39)))} assume i <= n * 4; {20770#(and (or (< 39 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 39)))} is VALID [2018-12-18 17:57:33,156 INFO L273 TraceCheckUtils]: 47: Hoare triple {20770#(and (or (< 39 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 39)))} assume a[i] != 23;i := i + 4; {20771#(and (or (< 39 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 39)))} is VALID [2018-12-18 17:57:33,157 INFO L273 TraceCheckUtils]: 48: Hoare triple {20771#(and (or (< 39 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 39)))} assume i <= n * 4; {20771#(and (or (< 39 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 39)))} is VALID [2018-12-18 17:57:33,158 INFO L273 TraceCheckUtils]: 49: Hoare triple {20771#(and (or (< 39 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 39)))} assume a[i] != 23;i := i + 4; {20772#(and (or (< 39 main_n) (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 100) (<= main_n 39)))} is VALID [2018-12-18 17:57:33,159 INFO L273 TraceCheckUtils]: 50: Hoare triple {20772#(and (or (< 39 main_n) (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 100) (<= main_n 39)))} assume i <= n * 4; {20772#(and (or (< 39 main_n) (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 100) (<= main_n 39)))} is VALID [2018-12-18 17:57:33,160 INFO L273 TraceCheckUtils]: 51: Hoare triple {20772#(and (or (< 39 main_n) (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 100) (<= main_n 39)))} assume a[i] != 23;i := i + 4; {20773#(and (or (< 39 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 104) (<= main_n 39)))} is VALID [2018-12-18 17:57:33,160 INFO L273 TraceCheckUtils]: 52: Hoare triple {20773#(and (or (< 39 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 104) (<= main_n 39)))} assume i <= n * 4; {20773#(and (or (< 39 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 104) (<= main_n 39)))} is VALID [2018-12-18 17:57:33,162 INFO L273 TraceCheckUtils]: 53: Hoare triple {20773#(and (or (< 39 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 104) (<= main_n 39)))} assume a[i] != 23;i := i + 4; {20774#(and (or (<= main_n 39) (<= main_i 108)) (or (< 39 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,162 INFO L273 TraceCheckUtils]: 54: Hoare triple {20774#(and (or (<= main_n 39) (<= main_i 108)) (or (< 39 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20774#(and (or (<= main_n 39) (<= main_i 108)) (or (< 39 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,163 INFO L273 TraceCheckUtils]: 55: Hoare triple {20774#(and (or (<= main_n 39) (<= main_i 108)) (or (< 39 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20775#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 39) (<= main_i 112)))} is VALID [2018-12-18 17:57:33,164 INFO L273 TraceCheckUtils]: 56: Hoare triple {20775#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 39) (<= main_i 112)))} assume i <= n * 4; {20775#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 39) (<= main_i 112)))} is VALID [2018-12-18 17:57:33,165 INFO L273 TraceCheckUtils]: 57: Hoare triple {20775#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 39) (<= main_i 112)))} assume a[i] != 23;i := i + 4; {20776#(and (or (< 39 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 116)))} is VALID [2018-12-18 17:57:33,166 INFO L273 TraceCheckUtils]: 58: Hoare triple {20776#(and (or (< 39 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 116)))} assume i <= n * 4; {20776#(and (or (< 39 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 116)))} is VALID [2018-12-18 17:57:33,167 INFO L273 TraceCheckUtils]: 59: Hoare triple {20776#(and (or (< 39 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 116)))} assume a[i] != 23;i := i + 4; {20777#(and (or (< 39 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 120)))} is VALID [2018-12-18 17:57:33,168 INFO L273 TraceCheckUtils]: 60: Hoare triple {20777#(and (or (< 39 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 120)))} assume i <= n * 4; {20777#(and (or (< 39 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 120)))} is VALID [2018-12-18 17:57:33,169 INFO L273 TraceCheckUtils]: 61: Hoare triple {20777#(and (or (< 39 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 120)))} assume a[i] != 23;i := i + 4; {20778#(and (or (<= main_n 39) (<= main_i 124)) (or (< 39 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,170 INFO L273 TraceCheckUtils]: 62: Hoare triple {20778#(and (or (<= main_n 39) (<= main_i 124)) (or (< 39 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20778#(and (or (<= main_n 39) (<= main_i 124)) (or (< 39 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,171 INFO L273 TraceCheckUtils]: 63: Hoare triple {20778#(and (or (<= main_n 39) (<= main_i 124)) (or (< 39 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20779#(and (or (<= main_n 39) (<= main_i 128)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2018-12-18 17:57:33,172 INFO L273 TraceCheckUtils]: 64: Hoare triple {20779#(and (or (<= main_n 39) (<= main_i 128)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume i <= n * 4; {20779#(and (or (<= main_n 39) (<= main_i 128)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2018-12-18 17:57:33,173 INFO L273 TraceCheckUtils]: 65: Hoare triple {20779#(and (or (<= main_n 39) (<= main_i 128)) (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume a[i] != 23;i := i + 4; {20780#(and (or (<= main_i 132) (<= main_n 39)) (or (< 39 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,174 INFO L273 TraceCheckUtils]: 66: Hoare triple {20780#(and (or (<= main_i 132) (<= main_n 39)) (or (< 39 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20780#(and (or (<= main_i 132) (<= main_n 39)) (or (< 39 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,175 INFO L273 TraceCheckUtils]: 67: Hoare triple {20780#(and (or (<= main_i 132) (<= main_n 39)) (or (< 39 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20781#(and (or (<= main_i 136) (<= main_n 39)) (or (< 39 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,175 INFO L273 TraceCheckUtils]: 68: Hoare triple {20781#(and (or (<= main_i 136) (<= main_n 39)) (or (< 39 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20781#(and (or (<= main_i 136) (<= main_n 39)) (or (< 39 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,176 INFO L273 TraceCheckUtils]: 69: Hoare triple {20781#(and (or (<= main_i 136) (<= main_n 39)) (or (< 39 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20782#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 39) (<= main_i 140)))} is VALID [2018-12-18 17:57:33,177 INFO L273 TraceCheckUtils]: 70: Hoare triple {20782#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 39) (<= main_i 140)))} assume i <= n * 4; {20782#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 39) (<= main_i 140)))} is VALID [2018-12-18 17:57:33,178 INFO L273 TraceCheckUtils]: 71: Hoare triple {20782#(and (or (< 39 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 39) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {20783#(and (or (<= main_n 39) (<= main_i 144)) (or (< 39 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,179 INFO L273 TraceCheckUtils]: 72: Hoare triple {20783#(and (or (<= main_n 39) (<= main_i 144)) (or (< 39 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20783#(and (or (<= main_n 39) (<= main_i 144)) (or (< 39 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,180 INFO L273 TraceCheckUtils]: 73: Hoare triple {20783#(and (or (<= main_n 39) (<= main_i 144)) (or (< 39 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20784#(and (or (<= main_n 39) (<= main_i 148)) (or (< 39 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,181 INFO L273 TraceCheckUtils]: 74: Hoare triple {20784#(and (or (<= main_n 39) (<= main_i 148)) (or (< 39 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {20784#(and (or (<= main_n 39) (<= main_i 148)) (or (< 39 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:57:33,182 INFO L273 TraceCheckUtils]: 75: Hoare triple {20784#(and (or (<= main_n 39) (<= main_i 148)) (or (< 39 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {20785#(and (or (< 39 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 152)))} is VALID [2018-12-18 17:57:33,183 INFO L273 TraceCheckUtils]: 76: Hoare triple {20785#(and (or (< 39 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 152)))} assume i <= n * 4; {20785#(and (or (< 39 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 152)))} is VALID [2018-12-18 17:57:33,184 INFO L273 TraceCheckUtils]: 77: Hoare triple {20785#(and (or (< 39 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 39) (<= main_i 152)))} assume a[i] != 23;i := i + 4; {20786#(and (or (< 39 main_n) (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i))) (or (<= main_i 156) (<= main_n 39)))} is VALID [2018-12-18 17:57:33,185 INFO L273 TraceCheckUtils]: 78: Hoare triple {20786#(and (or (< 39 main_n) (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i))) (or (<= main_i 156) (<= main_n 39)))} assume i <= n * 4; {20787#(and (or (< 39 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 156))} is VALID [2018-12-18 17:57:33,186 INFO L273 TraceCheckUtils]: 79: Hoare triple {20787#(and (or (< 39 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 156))} assume a[i] != 23;i := i + 4; {20788#(and (<= 40 main_n) (<= main_i 160))} is VALID [2018-12-18 17:57:33,187 INFO L273 TraceCheckUtils]: 80: Hoare triple {20788#(and (<= 40 main_n) (<= main_i 160))} assume !(i <= n * 4); {20746#false} is VALID [2018-12-18 17:57:33,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 1560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:57:33,217 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:57:33,217 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:57:33,217 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:57:33,218 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:57:33,218 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:57:33,218 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:57:33,226 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-18 17:57:33,226 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-18 17:57:33,253 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-18 17:57:33,253 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:57:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:57:33,266 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:57:33,275 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:57:33,277 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:57:33,283 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:57:33,283 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:57:33,286 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:57:33,286 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_43]. (and (= main_i 0) (= (store v_main_a_43 (* 4 main_n) 23) main_a)) [2018-12-18 17:57:33,286 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:57:35,929 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:57:35,931 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:57:35,937 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:57:35,938 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:57:35,940 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:57:35,940 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 156) 23)) (<= 156 .cse0) (= 23 (select main_a .cse0)) (<= main_i 160))) [2018-12-18 17:57:35,940 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 156 .cse0) (not (= 156 .cse0)) (<= main_i 160))) [2018-12-18 17:57:35,990 INFO L273 TraceCheckUtils]: 0: Hoare triple {20745#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {20792#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:35,991 INFO L273 TraceCheckUtils]: 1: Hoare triple {20792#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20796#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:57:35,991 INFO L273 TraceCheckUtils]: 2: Hoare triple {20796#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {20796#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:57:35,992 INFO L273 TraceCheckUtils]: 3: Hoare triple {20796#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {20803#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:35,992 INFO L273 TraceCheckUtils]: 4: Hoare triple {20803#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20803#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:35,992 INFO L273 TraceCheckUtils]: 5: Hoare triple {20803#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20810#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:57:35,993 INFO L273 TraceCheckUtils]: 6: Hoare triple {20810#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {20810#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:57:35,993 INFO L273 TraceCheckUtils]: 7: Hoare triple {20810#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {20817#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:35,994 INFO L273 TraceCheckUtils]: 8: Hoare triple {20817#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20817#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:35,995 INFO L273 TraceCheckUtils]: 9: Hoare triple {20817#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20824#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:35,995 INFO L273 TraceCheckUtils]: 10: Hoare triple {20824#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20824#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:35,996 INFO L273 TraceCheckUtils]: 11: Hoare triple {20824#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20831#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:35,997 INFO L273 TraceCheckUtils]: 12: Hoare triple {20831#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20831#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:35,997 INFO L273 TraceCheckUtils]: 13: Hoare triple {20831#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20838#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:35,998 INFO L273 TraceCheckUtils]: 14: Hoare triple {20838#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20838#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:35,999 INFO L273 TraceCheckUtils]: 15: Hoare triple {20838#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20845#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:35,999 INFO L273 TraceCheckUtils]: 16: Hoare triple {20845#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20845#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,000 INFO L273 TraceCheckUtils]: 17: Hoare triple {20845#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20852#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,001 INFO L273 TraceCheckUtils]: 18: Hoare triple {20852#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20852#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,002 INFO L273 TraceCheckUtils]: 19: Hoare triple {20852#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20859#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,002 INFO L273 TraceCheckUtils]: 20: Hoare triple {20859#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20859#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,003 INFO L273 TraceCheckUtils]: 21: Hoare triple {20859#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20866#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,004 INFO L273 TraceCheckUtils]: 22: Hoare triple {20866#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20866#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,004 INFO L273 TraceCheckUtils]: 23: Hoare triple {20866#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20873#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,005 INFO L273 TraceCheckUtils]: 24: Hoare triple {20873#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20873#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,006 INFO L273 TraceCheckUtils]: 25: Hoare triple {20873#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20880#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,006 INFO L273 TraceCheckUtils]: 26: Hoare triple {20880#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20880#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,007 INFO L273 TraceCheckUtils]: 27: Hoare triple {20880#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20887#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,008 INFO L273 TraceCheckUtils]: 28: Hoare triple {20887#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20887#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,008 INFO L273 TraceCheckUtils]: 29: Hoare triple {20887#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20894#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,009 INFO L273 TraceCheckUtils]: 30: Hoare triple {20894#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20894#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,010 INFO L273 TraceCheckUtils]: 31: Hoare triple {20894#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20901#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,012 INFO L273 TraceCheckUtils]: 32: Hoare triple {20901#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20901#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,013 INFO L273 TraceCheckUtils]: 33: Hoare triple {20901#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20908#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,013 INFO L273 TraceCheckUtils]: 34: Hoare triple {20908#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20908#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,014 INFO L273 TraceCheckUtils]: 35: Hoare triple {20908#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20915#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,014 INFO L273 TraceCheckUtils]: 36: Hoare triple {20915#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20915#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,015 INFO L273 TraceCheckUtils]: 37: Hoare triple {20915#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20922#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,015 INFO L273 TraceCheckUtils]: 38: Hoare triple {20922#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20922#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,016 INFO L273 TraceCheckUtils]: 39: Hoare triple {20922#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20929#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:57:36,017 INFO L273 TraceCheckUtils]: 40: Hoare triple {20929#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {20929#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:57:36,017 INFO L273 TraceCheckUtils]: 41: Hoare triple {20929#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {20936#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,018 INFO L273 TraceCheckUtils]: 42: Hoare triple {20936#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20936#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,019 INFO L273 TraceCheckUtils]: 43: Hoare triple {20936#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20943#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,020 INFO L273 TraceCheckUtils]: 44: Hoare triple {20943#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20943#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,020 INFO L273 TraceCheckUtils]: 45: Hoare triple {20943#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20950#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,021 INFO L273 TraceCheckUtils]: 46: Hoare triple {20950#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20950#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,022 INFO L273 TraceCheckUtils]: 47: Hoare triple {20950#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20957#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,023 INFO L273 TraceCheckUtils]: 48: Hoare triple {20957#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20957#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,023 INFO L273 TraceCheckUtils]: 49: Hoare triple {20957#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20964#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,024 INFO L273 TraceCheckUtils]: 50: Hoare triple {20964#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20964#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,025 INFO L273 TraceCheckUtils]: 51: Hoare triple {20964#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20971#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,025 INFO L273 TraceCheckUtils]: 52: Hoare triple {20971#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20971#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,026 INFO L273 TraceCheckUtils]: 53: Hoare triple {20971#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20978#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,027 INFO L273 TraceCheckUtils]: 54: Hoare triple {20978#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20978#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,028 INFO L273 TraceCheckUtils]: 55: Hoare triple {20978#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20985#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,028 INFO L273 TraceCheckUtils]: 56: Hoare triple {20985#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20985#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,029 INFO L273 TraceCheckUtils]: 57: Hoare triple {20985#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20992#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,030 INFO L273 TraceCheckUtils]: 58: Hoare triple {20992#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20992#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,030 INFO L273 TraceCheckUtils]: 59: Hoare triple {20992#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20999#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,031 INFO L273 TraceCheckUtils]: 60: Hoare triple {20999#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {20999#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,032 INFO L273 TraceCheckUtils]: 61: Hoare triple {20999#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21006#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,033 INFO L273 TraceCheckUtils]: 62: Hoare triple {21006#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21006#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,033 INFO L273 TraceCheckUtils]: 63: Hoare triple {21006#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21013#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,034 INFO L273 TraceCheckUtils]: 64: Hoare triple {21013#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21013#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,035 INFO L273 TraceCheckUtils]: 65: Hoare triple {21013#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21020#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,036 INFO L273 TraceCheckUtils]: 66: Hoare triple {21020#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21020#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,036 INFO L273 TraceCheckUtils]: 67: Hoare triple {21020#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21027#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,037 INFO L273 TraceCheckUtils]: 68: Hoare triple {21027#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21027#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,038 INFO L273 TraceCheckUtils]: 69: Hoare triple {21027#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21034#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 17:57:36,039 INFO L273 TraceCheckUtils]: 70: Hoare triple {21034#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {21034#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 17:57:36,039 INFO L273 TraceCheckUtils]: 71: Hoare triple {21034#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {21041#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,040 INFO L273 TraceCheckUtils]: 72: Hoare triple {21041#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21041#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,041 INFO L273 TraceCheckUtils]: 73: Hoare triple {21041#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21048#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,042 INFO L273 TraceCheckUtils]: 74: Hoare triple {21048#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21048#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,042 INFO L273 TraceCheckUtils]: 75: Hoare triple {21048#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21055#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,043 INFO L273 TraceCheckUtils]: 76: Hoare triple {21055#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21055#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,044 INFO L273 TraceCheckUtils]: 77: Hoare triple {21055#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21062#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,044 INFO L273 TraceCheckUtils]: 78: Hoare triple {21062#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21066#(and (= main_i 156) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:36,045 INFO L273 TraceCheckUtils]: 79: Hoare triple {21066#(and (= main_i 156) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {20788#(and (<= 40 main_n) (<= main_i 160))} is VALID [2018-12-18 17:57:36,046 INFO L273 TraceCheckUtils]: 80: Hoare triple {20788#(and (<= 40 main_n) (<= main_i 160))} assume !(i <= n * 4); {20746#false} is VALID [2018-12-18 17:57:36,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 1560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:57:36,062 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:57:40,677 INFO L273 TraceCheckUtils]: 80: Hoare triple {21073#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {20746#false} is VALID [2018-12-18 17:57:40,679 INFO L273 TraceCheckUtils]: 79: Hoare triple {21077#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {21073#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:57:40,679 INFO L273 TraceCheckUtils]: 78: Hoare triple {21081#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {21077#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:57:40,680 INFO L273 TraceCheckUtils]: 77: Hoare triple {21085#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {21081#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:57:40,681 INFO L273 TraceCheckUtils]: 76: Hoare triple {21085#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {21085#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:57:40,681 INFO L273 TraceCheckUtils]: 75: Hoare triple {21092#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {21085#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:57:40,682 INFO L273 TraceCheckUtils]: 74: Hoare triple {21092#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {21092#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:57:40,682 INFO L273 TraceCheckUtils]: 73: Hoare triple {21099#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {21092#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:57:40,683 INFO L273 TraceCheckUtils]: 72: Hoare triple {21099#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {21099#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:57:40,684 INFO L273 TraceCheckUtils]: 71: Hoare triple {21106#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {21099#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:57:40,684 INFO L273 TraceCheckUtils]: 70: Hoare triple {21106#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {21106#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:57:40,685 INFO L273 TraceCheckUtils]: 69: Hoare triple {21113#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21106#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:57:40,686 INFO L273 TraceCheckUtils]: 68: Hoare triple {21113#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {21113#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,687 INFO L273 TraceCheckUtils]: 67: Hoare triple {21120#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {21113#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,688 INFO L273 TraceCheckUtils]: 66: Hoare triple {21120#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {21120#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:57:40,689 INFO L273 TraceCheckUtils]: 65: Hoare triple {21127#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21120#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:57:40,689 INFO L273 TraceCheckUtils]: 64: Hoare triple {21127#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {21127#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,690 INFO L273 TraceCheckUtils]: 63: Hoare triple {21134#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21127#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,691 INFO L273 TraceCheckUtils]: 62: Hoare triple {21134#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {21134#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,692 INFO L273 TraceCheckUtils]: 61: Hoare triple {21141#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21134#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,692 INFO L273 TraceCheckUtils]: 60: Hoare triple {21141#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {21141#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,693 INFO L273 TraceCheckUtils]: 59: Hoare triple {21148#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {21141#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,694 INFO L273 TraceCheckUtils]: 58: Hoare triple {21148#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {21148#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:57:40,695 INFO L273 TraceCheckUtils]: 57: Hoare triple {21155#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21148#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:57:40,696 INFO L273 TraceCheckUtils]: 56: Hoare triple {21155#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {21155#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,697 INFO L273 TraceCheckUtils]: 55: Hoare triple {21162#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21155#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,697 INFO L273 TraceCheckUtils]: 54: Hoare triple {21162#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {21162#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,698 INFO L273 TraceCheckUtils]: 53: Hoare triple {21169#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {21162#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,699 INFO L273 TraceCheckUtils]: 52: Hoare triple {21169#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {21169#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:57:40,700 INFO L273 TraceCheckUtils]: 51: Hoare triple {21176#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21169#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:57:40,700 INFO L273 TraceCheckUtils]: 50: Hoare triple {21176#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {21176#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,701 INFO L273 TraceCheckUtils]: 49: Hoare triple {21183#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {21176#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,702 INFO L273 TraceCheckUtils]: 48: Hoare triple {21183#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {21183#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:57:40,703 INFO L273 TraceCheckUtils]: 47: Hoare triple {21190#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {21183#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:57:40,703 INFO L273 TraceCheckUtils]: 46: Hoare triple {21190#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {21190#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:57:40,704 INFO L273 TraceCheckUtils]: 45: Hoare triple {21197#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {21190#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:57:40,705 INFO L273 TraceCheckUtils]: 44: Hoare triple {21197#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {21197#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:57:40,706 INFO L273 TraceCheckUtils]: 43: Hoare triple {21204#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {21197#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:57:40,706 INFO L273 TraceCheckUtils]: 42: Hoare triple {21204#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {21204#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:57:40,708 INFO L273 TraceCheckUtils]: 41: Hoare triple {21211#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {21204#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:57:40,708 INFO L273 TraceCheckUtils]: 40: Hoare triple {21211#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {21211#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:57:40,709 INFO L273 TraceCheckUtils]: 39: Hoare triple {21218#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {21211#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:57:40,710 INFO L273 TraceCheckUtils]: 38: Hoare triple {21218#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {21218#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:57:40,711 INFO L273 TraceCheckUtils]: 37: Hoare triple {21225#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21218#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:57:40,711 INFO L273 TraceCheckUtils]: 36: Hoare triple {21225#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {21225#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,712 INFO L273 TraceCheckUtils]: 35: Hoare triple {21232#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21225#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,713 INFO L273 TraceCheckUtils]: 34: Hoare triple {21232#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {21232#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,714 INFO L273 TraceCheckUtils]: 33: Hoare triple {21239#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21232#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,714 INFO L273 TraceCheckUtils]: 32: Hoare triple {21239#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {21239#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,715 INFO L273 TraceCheckUtils]: 31: Hoare triple {21246#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {21239#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,716 INFO L273 TraceCheckUtils]: 30: Hoare triple {21246#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {21246#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:57:40,717 INFO L273 TraceCheckUtils]: 29: Hoare triple {21253#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21246#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:57:40,717 INFO L273 TraceCheckUtils]: 28: Hoare triple {21253#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {21253#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,718 INFO L273 TraceCheckUtils]: 27: Hoare triple {21260#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {21253#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,719 INFO L273 TraceCheckUtils]: 26: Hoare triple {21260#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {21260#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:57:40,720 INFO L273 TraceCheckUtils]: 25: Hoare triple {21267#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {21260#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:57:40,721 INFO L273 TraceCheckUtils]: 24: Hoare triple {21267#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {21267#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:57:40,722 INFO L273 TraceCheckUtils]: 23: Hoare triple {21274#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {21267#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:57:40,722 INFO L273 TraceCheckUtils]: 22: Hoare triple {21274#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {21274#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:57:40,723 INFO L273 TraceCheckUtils]: 21: Hoare triple {21281#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21274#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:57:40,724 INFO L273 TraceCheckUtils]: 20: Hoare triple {21281#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {21281#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,725 INFO L273 TraceCheckUtils]: 19: Hoare triple {21288#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21281#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,725 INFO L273 TraceCheckUtils]: 18: Hoare triple {21288#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {21288#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,726 INFO L273 TraceCheckUtils]: 17: Hoare triple {21295#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {21288#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,727 INFO L273 TraceCheckUtils]: 16: Hoare triple {21295#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {21295#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:57:40,728 INFO L273 TraceCheckUtils]: 15: Hoare triple {21302#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {21295#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:57:40,728 INFO L273 TraceCheckUtils]: 14: Hoare triple {21302#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {21302#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,729 INFO L273 TraceCheckUtils]: 13: Hoare triple {21309#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {21302#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:57:40,730 INFO L273 TraceCheckUtils]: 12: Hoare triple {21309#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {21309#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 17:57:40,731 INFO L273 TraceCheckUtils]: 11: Hoare triple {21316#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {21309#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 17:57:40,731 INFO L273 TraceCheckUtils]: 10: Hoare triple {21316#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {21316#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 17:57:40,732 INFO L273 TraceCheckUtils]: 9: Hoare triple {21323#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {21316#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 17:57:40,733 INFO L273 TraceCheckUtils]: 8: Hoare triple {21323#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {21323#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 17:57:40,734 INFO L273 TraceCheckUtils]: 7: Hoare triple {21330#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {21323#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 17:57:40,735 INFO L273 TraceCheckUtils]: 6: Hoare triple {21330#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {21330#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 17:57:40,736 INFO L273 TraceCheckUtils]: 5: Hoare triple {21337#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {21330#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 17:57:40,736 INFO L273 TraceCheckUtils]: 4: Hoare triple {21337#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {21337#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 17:57:40,737 INFO L273 TraceCheckUtils]: 3: Hoare triple {21344#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {21337#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 17:57:40,738 INFO L273 TraceCheckUtils]: 2: Hoare triple {21344#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {21344#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 17:57:40,739 INFO L273 TraceCheckUtils]: 1: Hoare triple {21351#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {21344#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 17:57:40,740 INFO L273 TraceCheckUtils]: 0: Hoare triple {20745#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {21351#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 17:57:40,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 1560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:57:40,783 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:57:40,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42, 42] total 125 [2018-12-18 17:57:40,783 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:57:40,783 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 81 [2018-12-18 17:57:40,784 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:57:40,784 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 85 states. [2018-12-18 17:57:40,979 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 161 edges. 161 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:57:40,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 85 states [2018-12-18 17:57:40,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2018-12-18 17:57:40,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1982, Invalid=14020, Unknown=0, NotChecked=0, Total=16002 [2018-12-18 17:57:40,981 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand 85 states. [2018-12-18 17:57:50,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:57:50,296 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2018-12-18 17:57:50,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-12-18 17:57:50,296 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 81 [2018-12-18 17:57:50,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:57:50,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-12-18 17:57:50,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 86 transitions. [2018-12-18 17:57:50,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-12-18 17:57:50,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 86 transitions. [2018-12-18 17:57:50,298 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 44 states and 86 transitions. [2018-12-18 17:57:50,391 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 86 edges. 86 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:57:50,392 INFO L225 Difference]: With dead ends: 86 [2018-12-18 17:57:50,393 INFO L226 Difference]: Without dead ends: 85 [2018-12-18 17:57:50,393 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3608 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=1982, Invalid=14020, Unknown=0, NotChecked=0, Total=16002 [2018-12-18 17:57:50,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-12-18 17:57:50,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2018-12-18 17:57:50,476 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:57:50,477 INFO L82 GeneralOperation]: Start isEquivalent. First operand 85 states. Second operand 84 states. [2018-12-18 17:57:50,477 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 84 states. [2018-12-18 17:57:50,477 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 84 states. [2018-12-18 17:57:50,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:57:50,478 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2018-12-18 17:57:50,478 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 85 transitions. [2018-12-18 17:57:50,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:57:50,479 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:57:50,479 INFO L74 IsIncluded]: Start isIncluded. First operand 84 states. Second operand 85 states. [2018-12-18 17:57:50,479 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 85 states. [2018-12-18 17:57:50,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:57:50,480 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2018-12-18 17:57:50,480 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 85 transitions. [2018-12-18 17:57:50,481 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:57:50,481 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:57:50,481 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:57:50,481 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:57:50,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-12-18 17:57:50,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 84 transitions. [2018-12-18 17:57:50,482 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 84 transitions. Word has length 81 [2018-12-18 17:57:50,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:57:50,482 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 84 transitions. [2018-12-18 17:57:50,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has 85 states. [2018-12-18 17:57:50,483 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 84 transitions. [2018-12-18 17:57:50,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-18 17:57:50,483 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:57:50,483 INFO L402 BasicCegarLoop]: trace histogram [41, 40, 1, 1] [2018-12-18 17:57:50,483 INFO L423 AbstractCegarLoop]: === Iteration 41 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:57:50,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:57:50,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1588427056, now seen corresponding path program 40 times [2018-12-18 17:57:50,484 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:57:50,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:57:50,484 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:57:50,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:57:50,485 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:57:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:57:52,820 INFO L273 TraceCheckUtils]: 0: Hoare triple {21777#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {21779#(and (or (<= main_i 0) (<= main_n 40)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,821 INFO L273 TraceCheckUtils]: 1: Hoare triple {21779#(and (or (<= main_i 0) (<= main_n 40)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21780#(and (or (<= main_n 40) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,822 INFO L273 TraceCheckUtils]: 2: Hoare triple {21780#(and (or (<= main_n 40) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 40 main_n)))} assume i <= n * 4; {21780#(and (or (<= main_n 40) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,823 INFO L273 TraceCheckUtils]: 3: Hoare triple {21780#(and (or (<= main_n 40) (<= main_i 4)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21781#(and (or (<= main_i 8) (<= main_n 40)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,824 INFO L273 TraceCheckUtils]: 4: Hoare triple {21781#(and (or (<= main_i 8) (<= main_n 40)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21781#(and (or (<= main_i 8) (<= main_n 40)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,825 INFO L273 TraceCheckUtils]: 5: Hoare triple {21781#(and (or (<= main_i 8) (<= main_n 40)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21782#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 12)))} is VALID [2018-12-18 17:57:52,825 INFO L273 TraceCheckUtils]: 6: Hoare triple {21782#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 12)))} assume i <= n * 4; {21782#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 12)))} is VALID [2018-12-18 17:57:52,827 INFO L273 TraceCheckUtils]: 7: Hoare triple {21782#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {21783#(and (or (<= main_n 40) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,827 INFO L273 TraceCheckUtils]: 8: Hoare triple {21783#(and (or (<= main_n 40) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21783#(and (or (<= main_n 40) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,828 INFO L273 TraceCheckUtils]: 9: Hoare triple {21783#(and (or (<= main_n 40) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21784#(and (or (<= main_i 20) (<= main_n 40)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,829 INFO L273 TraceCheckUtils]: 10: Hoare triple {21784#(and (or (<= main_i 20) (<= main_n 40)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21784#(and (or (<= main_i 20) (<= main_n 40)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,830 INFO L273 TraceCheckUtils]: 11: Hoare triple {21784#(and (or (<= main_i 20) (<= main_n 40)) (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21785#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 24) (<= main_n 40)))} is VALID [2018-12-18 17:57:52,831 INFO L273 TraceCheckUtils]: 12: Hoare triple {21785#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 24) (<= main_n 40)))} assume i <= n * 4; {21785#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 24) (<= main_n 40)))} is VALID [2018-12-18 17:57:52,832 INFO L273 TraceCheckUtils]: 13: Hoare triple {21785#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 24) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21786#(and (or (<= main_n 40) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,833 INFO L273 TraceCheckUtils]: 14: Hoare triple {21786#(and (or (<= main_n 40) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21786#(and (or (<= main_n 40) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,834 INFO L273 TraceCheckUtils]: 15: Hoare triple {21786#(and (or (<= main_n 40) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21787#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 32) (<= main_n 40)))} is VALID [2018-12-18 17:57:52,835 INFO L273 TraceCheckUtils]: 16: Hoare triple {21787#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 32) (<= main_n 40)))} assume i <= n * 4; {21787#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 32) (<= main_n 40)))} is VALID [2018-12-18 17:57:52,836 INFO L273 TraceCheckUtils]: 17: Hoare triple {21787#(and (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 32) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21788#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 40 main_n)) (or (<= main_i 36) (<= main_n 40)))} is VALID [2018-12-18 17:57:52,836 INFO L273 TraceCheckUtils]: 18: Hoare triple {21788#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 40 main_n)) (or (<= main_i 36) (<= main_n 40)))} assume i <= n * 4; {21788#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 40 main_n)) (or (<= main_i 36) (<= main_n 40)))} is VALID [2018-12-18 17:57:52,837 INFO L273 TraceCheckUtils]: 19: Hoare triple {21788#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 40 main_n)) (or (<= main_i 36) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21789#(and (or (<= main_i 40) (<= main_n 40)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,838 INFO L273 TraceCheckUtils]: 20: Hoare triple {21789#(and (or (<= main_i 40) (<= main_n 40)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21789#(and (or (<= main_i 40) (<= main_n 40)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,839 INFO L273 TraceCheckUtils]: 21: Hoare triple {21789#(and (or (<= main_i 40) (<= main_n 40)) (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21790#(and (or (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 44)))} is VALID [2018-12-18 17:57:52,840 INFO L273 TraceCheckUtils]: 22: Hoare triple {21790#(and (or (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 44)))} assume i <= n * 4; {21790#(and (or (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 44)))} is VALID [2018-12-18 17:57:52,841 INFO L273 TraceCheckUtils]: 23: Hoare triple {21790#(and (or (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {21791#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 48)))} is VALID [2018-12-18 17:57:52,842 INFO L273 TraceCheckUtils]: 24: Hoare triple {21791#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 48)))} assume i <= n * 4; {21791#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 48)))} is VALID [2018-12-18 17:57:52,843 INFO L273 TraceCheckUtils]: 25: Hoare triple {21791#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {21792#(and (or (<= main_i 52) (<= main_n 40)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,844 INFO L273 TraceCheckUtils]: 26: Hoare triple {21792#(and (or (<= main_i 52) (<= main_n 40)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21792#(and (or (<= main_i 52) (<= main_n 40)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,845 INFO L273 TraceCheckUtils]: 27: Hoare triple {21792#(and (or (<= main_i 52) (<= main_n 40)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21793#(and (or (<= main_n 40) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,846 INFO L273 TraceCheckUtils]: 28: Hoare triple {21793#(and (or (<= main_n 40) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21793#(and (or (<= main_n 40) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,847 INFO L273 TraceCheckUtils]: 29: Hoare triple {21793#(and (or (<= main_n 40) (<= main_i 56)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21794#(and (or (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 60) (<= main_n 40)))} is VALID [2018-12-18 17:57:52,848 INFO L273 TraceCheckUtils]: 30: Hoare triple {21794#(and (or (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 60) (<= main_n 40)))} assume i <= n * 4; {21794#(and (or (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 60) (<= main_n 40)))} is VALID [2018-12-18 17:57:52,849 INFO L273 TraceCheckUtils]: 31: Hoare triple {21794#(and (or (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 60) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21795#(and (or (<= main_i 64) (<= main_n 40)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,850 INFO L273 TraceCheckUtils]: 32: Hoare triple {21795#(and (or (<= main_i 64) (<= main_n 40)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21795#(and (or (<= main_i 64) (<= main_n 40)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,851 INFO L273 TraceCheckUtils]: 33: Hoare triple {21795#(and (or (<= main_i 64) (<= main_n 40)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21796#(and (or (<= main_n 40) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,851 INFO L273 TraceCheckUtils]: 34: Hoare triple {21796#(and (or (<= main_n 40) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21796#(and (or (<= main_n 40) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,853 INFO L273 TraceCheckUtils]: 35: Hoare triple {21796#(and (or (<= main_n 40) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21797#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 72)))} is VALID [2018-12-18 17:57:52,853 INFO L273 TraceCheckUtils]: 36: Hoare triple {21797#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 72)))} assume i <= n * 4; {21797#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 72)))} is VALID [2018-12-18 17:57:52,854 INFO L273 TraceCheckUtils]: 37: Hoare triple {21797#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 72)))} assume a[i] != 23;i := i + 4; {21798#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 76) (<= main_n 40)))} is VALID [2018-12-18 17:57:52,855 INFO L273 TraceCheckUtils]: 38: Hoare triple {21798#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 76) (<= main_n 40)))} assume i <= n * 4; {21798#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 76) (<= main_n 40)))} is VALID [2018-12-18 17:57:52,856 INFO L273 TraceCheckUtils]: 39: Hoare triple {21798#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 76) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21799#(and (or (<= main_n 40) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,857 INFO L273 TraceCheckUtils]: 40: Hoare triple {21799#(and (or (<= main_n 40) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21799#(and (or (<= main_n 40) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,865 INFO L273 TraceCheckUtils]: 41: Hoare triple {21799#(and (or (<= main_n 40) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21800#(and (or (<= main_i 84) (<= main_n 40)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,865 INFO L273 TraceCheckUtils]: 42: Hoare triple {21800#(and (or (<= main_i 84) (<= main_n 40)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 40 main_n)))} assume i <= n * 4; {21800#(and (or (<= main_i 84) (<= main_n 40)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,866 INFO L273 TraceCheckUtils]: 43: Hoare triple {21800#(and (or (<= main_i 84) (<= main_n 40)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21801#(and (or (<= main_i 88) (<= main_n 40)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,866 INFO L273 TraceCheckUtils]: 44: Hoare triple {21801#(and (or (<= main_i 88) (<= main_n 40)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21801#(and (or (<= main_i 88) (<= main_n 40)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,867 INFO L273 TraceCheckUtils]: 45: Hoare triple {21801#(and (or (<= main_i 88) (<= main_n 40)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21802#(and (or (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 92) (<= main_n 40)))} is VALID [2018-12-18 17:57:52,867 INFO L273 TraceCheckUtils]: 46: Hoare triple {21802#(and (or (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 92) (<= main_n 40)))} assume i <= n * 4; {21802#(and (or (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 92) (<= main_n 40)))} is VALID [2018-12-18 17:57:52,868 INFO L273 TraceCheckUtils]: 47: Hoare triple {21802#(and (or (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 92) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21803#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 96) (<= main_n 40)))} is VALID [2018-12-18 17:57:52,869 INFO L273 TraceCheckUtils]: 48: Hoare triple {21803#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 96) (<= main_n 40)))} assume i <= n * 4; {21803#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 96) (<= main_n 40)))} is VALID [2018-12-18 17:57:52,869 INFO L273 TraceCheckUtils]: 49: Hoare triple {21803#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 96) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21804#(and (or (<= main_i 100) (<= main_n 40)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,870 INFO L273 TraceCheckUtils]: 50: Hoare triple {21804#(and (or (<= main_i 100) (<= main_n 40)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21804#(and (or (<= main_i 100) (<= main_n 40)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,871 INFO L273 TraceCheckUtils]: 51: Hoare triple {21804#(and (or (<= main_i 100) (<= main_n 40)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21805#(and (or (<= main_i 104) (<= main_n 40)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,872 INFO L273 TraceCheckUtils]: 52: Hoare triple {21805#(and (or (<= main_i 104) (<= main_n 40)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21805#(and (or (<= main_i 104) (<= main_n 40)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,873 INFO L273 TraceCheckUtils]: 53: Hoare triple {21805#(and (or (<= main_i 104) (<= main_n 40)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21806#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 108)))} is VALID [2018-12-18 17:57:52,874 INFO L273 TraceCheckUtils]: 54: Hoare triple {21806#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 108)))} assume i <= n * 4; {21806#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 108)))} is VALID [2018-12-18 17:57:52,875 INFO L273 TraceCheckUtils]: 55: Hoare triple {21806#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {21807#(and (or (<= main_n 40) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,876 INFO L273 TraceCheckUtils]: 56: Hoare triple {21807#(and (or (<= main_n 40) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 40 main_n)))} assume i <= n * 4; {21807#(and (or (<= main_n 40) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,877 INFO L273 TraceCheckUtils]: 57: Hoare triple {21807#(and (or (<= main_n 40) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21808#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 116) (<= main_n 40)))} is VALID [2018-12-18 17:57:52,878 INFO L273 TraceCheckUtils]: 58: Hoare triple {21808#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 116) (<= main_n 40)))} assume i <= n * 4; {21808#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 116) (<= main_n 40)))} is VALID [2018-12-18 17:57:52,879 INFO L273 TraceCheckUtils]: 59: Hoare triple {21808#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 116) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21809#(and (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 120) (<= main_n 40)))} is VALID [2018-12-18 17:57:52,880 INFO L273 TraceCheckUtils]: 60: Hoare triple {21809#(and (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 120) (<= main_n 40)))} assume i <= n * 4; {21809#(and (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 120) (<= main_n 40)))} is VALID [2018-12-18 17:57:52,881 INFO L273 TraceCheckUtils]: 61: Hoare triple {21809#(and (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 120) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21810#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 124)))} is VALID [2018-12-18 17:57:52,881 INFO L273 TraceCheckUtils]: 62: Hoare triple {21810#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 124)))} assume i <= n * 4; {21810#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 124)))} is VALID [2018-12-18 17:57:52,883 INFO L273 TraceCheckUtils]: 63: Hoare triple {21810#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 124)))} assume a[i] != 23;i := i + 4; {21811#(and (or (<= main_n 40) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,883 INFO L273 TraceCheckUtils]: 64: Hoare triple {21811#(and (or (<= main_n 40) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 40 main_n)))} assume i <= n * 4; {21811#(and (or (<= main_n 40) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,884 INFO L273 TraceCheckUtils]: 65: Hoare triple {21811#(and (or (<= main_n 40) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21812#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 132) (<= main_n 40)))} is VALID [2018-12-18 17:57:52,885 INFO L273 TraceCheckUtils]: 66: Hoare triple {21812#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 132) (<= main_n 40)))} assume i <= n * 4; {21812#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 132) (<= main_n 40)))} is VALID [2018-12-18 17:57:52,886 INFO L273 TraceCheckUtils]: 67: Hoare triple {21812#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_i 132) (<= main_n 40)))} assume a[i] != 23;i := i + 4; {21813#(and (or (<= main_i 136) (<= main_n 40)) (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,887 INFO L273 TraceCheckUtils]: 68: Hoare triple {21813#(and (or (<= main_i 136) (<= main_n 40)) (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21813#(and (or (<= main_i 136) (<= main_n 40)) (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,888 INFO L273 TraceCheckUtils]: 69: Hoare triple {21813#(and (or (<= main_i 136) (<= main_n 40)) (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21814#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 40 main_n)) (or (<= main_n 40) (<= main_i 140)))} is VALID [2018-12-18 17:57:52,889 INFO L273 TraceCheckUtils]: 70: Hoare triple {21814#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 40 main_n)) (or (<= main_n 40) (<= main_i 140)))} assume i <= n * 4; {21814#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 40 main_n)) (or (<= main_n 40) (<= main_i 140)))} is VALID [2018-12-18 17:57:52,890 INFO L273 TraceCheckUtils]: 71: Hoare triple {21814#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 40 main_n)) (or (<= main_n 40) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {21815#(and (or (<= main_n 40) (<= main_i 144)) (or (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,890 INFO L273 TraceCheckUtils]: 72: Hoare triple {21815#(and (or (<= main_n 40) (<= main_i 144)) (or (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21815#(and (or (<= main_n 40) (<= main_i 144)) (or (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,891 INFO L273 TraceCheckUtils]: 73: Hoare triple {21815#(and (or (<= main_n 40) (<= main_i 144)) (or (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21816#(and (or (< 40 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 40) (<= main_i 148)))} is VALID [2018-12-18 17:57:52,892 INFO L273 TraceCheckUtils]: 74: Hoare triple {21816#(and (or (< 40 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 40) (<= main_i 148)))} assume i <= n * 4; {21816#(and (or (< 40 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 40) (<= main_i 148)))} is VALID [2018-12-18 17:57:52,893 INFO L273 TraceCheckUtils]: 75: Hoare triple {21816#(and (or (< 40 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 40) (<= main_i 148)))} assume a[i] != 23;i := i + 4; {21817#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 152)))} is VALID [2018-12-18 17:57:52,894 INFO L273 TraceCheckUtils]: 76: Hoare triple {21817#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 152)))} assume i <= n * 4; {21817#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 152)))} is VALID [2018-12-18 17:57:52,895 INFO L273 TraceCheckUtils]: 77: Hoare triple {21817#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)) (or (<= main_n 40) (<= main_i 152)))} assume a[i] != 23;i := i + 4; {21818#(and (or (<= main_i 156) (<= main_n 40)) (or (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,896 INFO L273 TraceCheckUtils]: 78: Hoare triple {21818#(and (or (<= main_i 156) (<= main_n 40)) (or (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume i <= n * 4; {21818#(and (or (<= main_i 156) (<= main_n 40)) (or (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} is VALID [2018-12-18 17:57:52,897 INFO L273 TraceCheckUtils]: 79: Hoare triple {21818#(and (or (<= main_i 156) (<= main_n 40)) (or (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n)))) (< 40 main_n)))} assume a[i] != 23;i := i + 4; {21819#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 40 main_n)) (or (<= main_n 40) (<= main_i 160)))} is VALID [2018-12-18 17:57:52,898 INFO L273 TraceCheckUtils]: 80: Hoare triple {21819#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 40 main_n)) (or (<= main_n 40) (<= main_i 160)))} assume i <= n * 4; {21820#(and (or (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i))) (< 40 main_n)) (<= main_i 160))} is VALID [2018-12-18 17:57:52,899 INFO L273 TraceCheckUtils]: 81: Hoare triple {21820#(and (or (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i))) (< 40 main_n)) (<= main_i 160))} assume a[i] != 23;i := i + 4; {21821#(and (<= main_i 164) (< 40 main_n))} is VALID [2018-12-18 17:57:52,900 INFO L273 TraceCheckUtils]: 82: Hoare triple {21821#(and (<= main_i 164) (< 40 main_n))} assume !(i <= n * 4); {21778#false} is VALID [2018-12-18 17:57:52,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 0 proven. 1640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:57:52,932 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:57:52,932 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:57:52,932 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:57:52,932 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:57:52,932 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:57:52,932 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:57:52,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:57:52,940 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-18 17:57:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:57:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:57:52,992 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:57:53,011 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:57:53,012 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:57:53,016 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:57:53,016 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:57:53,019 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:57:53,019 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_44]. (and (= (store v_main_a_44 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:57:53,019 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:57:55,789 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:57:55,791 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:57:55,796 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:57:55,796 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:57:55,798 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:57:55,799 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 160 .cse0) (<= main_i 164) (not (= 23 (select main_a 160))) (= 23 (select main_a .cse0)))) [2018-12-18 17:57:55,799 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 160 .cse0) (<= main_i 164) (not (= 160 .cse0)))) [2018-12-18 17:57:55,851 INFO L273 TraceCheckUtils]: 0: Hoare triple {21777#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {21825#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,851 INFO L273 TraceCheckUtils]: 1: Hoare triple {21825#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21829#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:57:55,852 INFO L273 TraceCheckUtils]: 2: Hoare triple {21829#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {21829#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:57:55,852 INFO L273 TraceCheckUtils]: 3: Hoare triple {21829#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {21836#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,853 INFO L273 TraceCheckUtils]: 4: Hoare triple {21836#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21836#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,854 INFO L273 TraceCheckUtils]: 5: Hoare triple {21836#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21843#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:57:55,854 INFO L273 TraceCheckUtils]: 6: Hoare triple {21843#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {21843#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:57:55,855 INFO L273 TraceCheckUtils]: 7: Hoare triple {21843#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {21850#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,856 INFO L273 TraceCheckUtils]: 8: Hoare triple {21850#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21850#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,856 INFO L273 TraceCheckUtils]: 9: Hoare triple {21850#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21857#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,857 INFO L273 TraceCheckUtils]: 10: Hoare triple {21857#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21857#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,858 INFO L273 TraceCheckUtils]: 11: Hoare triple {21857#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21864#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,859 INFO L273 TraceCheckUtils]: 12: Hoare triple {21864#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21864#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,859 INFO L273 TraceCheckUtils]: 13: Hoare triple {21864#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21871#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,860 INFO L273 TraceCheckUtils]: 14: Hoare triple {21871#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21871#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,861 INFO L273 TraceCheckUtils]: 15: Hoare triple {21871#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21878#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,861 INFO L273 TraceCheckUtils]: 16: Hoare triple {21878#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21878#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,862 INFO L273 TraceCheckUtils]: 17: Hoare triple {21878#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21885#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,863 INFO L273 TraceCheckUtils]: 18: Hoare triple {21885#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21885#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,864 INFO L273 TraceCheckUtils]: 19: Hoare triple {21885#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21892#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,864 INFO L273 TraceCheckUtils]: 20: Hoare triple {21892#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21892#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,865 INFO L273 TraceCheckUtils]: 21: Hoare triple {21892#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21899#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,866 INFO L273 TraceCheckUtils]: 22: Hoare triple {21899#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21899#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,866 INFO L273 TraceCheckUtils]: 23: Hoare triple {21899#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21906#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,867 INFO L273 TraceCheckUtils]: 24: Hoare triple {21906#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21906#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,868 INFO L273 TraceCheckUtils]: 25: Hoare triple {21906#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21913#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,868 INFO L273 TraceCheckUtils]: 26: Hoare triple {21913#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21913#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,869 INFO L273 TraceCheckUtils]: 27: Hoare triple {21913#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21920#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,870 INFO L273 TraceCheckUtils]: 28: Hoare triple {21920#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21920#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,870 INFO L273 TraceCheckUtils]: 29: Hoare triple {21920#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21927#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,871 INFO L273 TraceCheckUtils]: 30: Hoare triple {21927#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21927#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,872 INFO L273 TraceCheckUtils]: 31: Hoare triple {21927#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21934#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,872 INFO L273 TraceCheckUtils]: 32: Hoare triple {21934#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21934#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,873 INFO L273 TraceCheckUtils]: 33: Hoare triple {21934#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21941#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,874 INFO L273 TraceCheckUtils]: 34: Hoare triple {21941#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21941#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,874 INFO L273 TraceCheckUtils]: 35: Hoare triple {21941#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21948#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,875 INFO L273 TraceCheckUtils]: 36: Hoare triple {21948#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21948#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,876 INFO L273 TraceCheckUtils]: 37: Hoare triple {21948#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21955#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,876 INFO L273 TraceCheckUtils]: 38: Hoare triple {21955#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21955#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,877 INFO L273 TraceCheckUtils]: 39: Hoare triple {21955#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21962#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:57:55,878 INFO L273 TraceCheckUtils]: 40: Hoare triple {21962#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {21962#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:57:55,878 INFO L273 TraceCheckUtils]: 41: Hoare triple {21962#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {21969#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,879 INFO L273 TraceCheckUtils]: 42: Hoare triple {21969#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21969#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,880 INFO L273 TraceCheckUtils]: 43: Hoare triple {21969#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21976#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,881 INFO L273 TraceCheckUtils]: 44: Hoare triple {21976#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21976#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,881 INFO L273 TraceCheckUtils]: 45: Hoare triple {21976#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21983#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,882 INFO L273 TraceCheckUtils]: 46: Hoare triple {21983#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21983#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,883 INFO L273 TraceCheckUtils]: 47: Hoare triple {21983#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21990#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,883 INFO L273 TraceCheckUtils]: 48: Hoare triple {21990#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21990#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,884 INFO L273 TraceCheckUtils]: 49: Hoare triple {21990#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21997#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,885 INFO L273 TraceCheckUtils]: 50: Hoare triple {21997#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {21997#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,885 INFO L273 TraceCheckUtils]: 51: Hoare triple {21997#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22004#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,886 INFO L273 TraceCheckUtils]: 52: Hoare triple {22004#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22004#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,887 INFO L273 TraceCheckUtils]: 53: Hoare triple {22004#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22011#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,887 INFO L273 TraceCheckUtils]: 54: Hoare triple {22011#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22011#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,888 INFO L273 TraceCheckUtils]: 55: Hoare triple {22011#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22018#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,889 INFO L273 TraceCheckUtils]: 56: Hoare triple {22018#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22018#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,889 INFO L273 TraceCheckUtils]: 57: Hoare triple {22018#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22025#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,890 INFO L273 TraceCheckUtils]: 58: Hoare triple {22025#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22025#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,891 INFO L273 TraceCheckUtils]: 59: Hoare triple {22025#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22032#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,891 INFO L273 TraceCheckUtils]: 60: Hoare triple {22032#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22032#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,892 INFO L273 TraceCheckUtils]: 61: Hoare triple {22032#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22039#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,893 INFO L273 TraceCheckUtils]: 62: Hoare triple {22039#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22039#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,893 INFO L273 TraceCheckUtils]: 63: Hoare triple {22039#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22046#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,894 INFO L273 TraceCheckUtils]: 64: Hoare triple {22046#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22046#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,895 INFO L273 TraceCheckUtils]: 65: Hoare triple {22046#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22053#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,895 INFO L273 TraceCheckUtils]: 66: Hoare triple {22053#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22053#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,896 INFO L273 TraceCheckUtils]: 67: Hoare triple {22053#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22060#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,897 INFO L273 TraceCheckUtils]: 68: Hoare triple {22060#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22060#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,898 INFO L273 TraceCheckUtils]: 69: Hoare triple {22060#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22067#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 17:57:55,898 INFO L273 TraceCheckUtils]: 70: Hoare triple {22067#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {22067#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 17:57:55,899 INFO L273 TraceCheckUtils]: 71: Hoare triple {22067#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {22074#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,900 INFO L273 TraceCheckUtils]: 72: Hoare triple {22074#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22074#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,900 INFO L273 TraceCheckUtils]: 73: Hoare triple {22074#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22081#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,901 INFO L273 TraceCheckUtils]: 74: Hoare triple {22081#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22081#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,902 INFO L273 TraceCheckUtils]: 75: Hoare triple {22081#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22088#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,902 INFO L273 TraceCheckUtils]: 76: Hoare triple {22088#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22088#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,903 INFO L273 TraceCheckUtils]: 77: Hoare triple {22088#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22095#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,904 INFO L273 TraceCheckUtils]: 78: Hoare triple {22095#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22095#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,904 INFO L273 TraceCheckUtils]: 79: Hoare triple {22095#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22102#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,905 INFO L273 TraceCheckUtils]: 80: Hoare triple {22102#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22106#(and (= main_i 160) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:57:55,906 INFO L273 TraceCheckUtils]: 81: Hoare triple {22106#(and (= main_i 160) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {21821#(and (<= main_i 164) (< 40 main_n))} is VALID [2018-12-18 17:57:55,907 INFO L273 TraceCheckUtils]: 82: Hoare triple {21821#(and (<= main_i 164) (< 40 main_n))} assume !(i <= n * 4); {21778#false} is VALID [2018-12-18 17:57:55,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 0 proven. 1640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:57:55,923 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:58:00,791 INFO L273 TraceCheckUtils]: 82: Hoare triple {22113#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {21778#false} is VALID [2018-12-18 17:58:00,792 INFO L273 TraceCheckUtils]: 81: Hoare triple {22117#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {22113#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:58:00,793 INFO L273 TraceCheckUtils]: 80: Hoare triple {22121#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {22117#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:58:00,794 INFO L273 TraceCheckUtils]: 79: Hoare triple {22125#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {22121#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:58:00,795 INFO L273 TraceCheckUtils]: 78: Hoare triple {22125#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {22125#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:58:00,796 INFO L273 TraceCheckUtils]: 77: Hoare triple {22132#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {22125#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:58:00,796 INFO L273 TraceCheckUtils]: 76: Hoare triple {22132#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {22132#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:58:00,797 INFO L273 TraceCheckUtils]: 75: Hoare triple {22139#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {22132#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:58:00,798 INFO L273 TraceCheckUtils]: 74: Hoare triple {22139#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {22139#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:58:00,799 INFO L273 TraceCheckUtils]: 73: Hoare triple {22146#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {22139#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:58:00,799 INFO L273 TraceCheckUtils]: 72: Hoare triple {22146#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {22146#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:58:00,800 INFO L273 TraceCheckUtils]: 71: Hoare triple {22153#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22146#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:58:00,801 INFO L273 TraceCheckUtils]: 70: Hoare triple {22153#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {22153#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,802 INFO L273 TraceCheckUtils]: 69: Hoare triple {22160#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {22153#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,802 INFO L273 TraceCheckUtils]: 68: Hoare triple {22160#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {22160#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:58:00,803 INFO L273 TraceCheckUtils]: 67: Hoare triple {22167#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22160#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:58:00,804 INFO L273 TraceCheckUtils]: 66: Hoare triple {22167#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {22167#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,805 INFO L273 TraceCheckUtils]: 65: Hoare triple {22174#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22167#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,806 INFO L273 TraceCheckUtils]: 64: Hoare triple {22174#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {22174#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,807 INFO L273 TraceCheckUtils]: 63: Hoare triple {22181#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22174#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,807 INFO L273 TraceCheckUtils]: 62: Hoare triple {22181#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {22181#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,808 INFO L273 TraceCheckUtils]: 61: Hoare triple {22188#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {22181#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,809 INFO L273 TraceCheckUtils]: 60: Hoare triple {22188#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {22188#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:58:00,810 INFO L273 TraceCheckUtils]: 59: Hoare triple {22195#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22188#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:58:00,810 INFO L273 TraceCheckUtils]: 58: Hoare triple {22195#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {22195#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,811 INFO L273 TraceCheckUtils]: 57: Hoare triple {22202#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22195#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,812 INFO L273 TraceCheckUtils]: 56: Hoare triple {22202#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {22202#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,813 INFO L273 TraceCheckUtils]: 55: Hoare triple {22209#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {22202#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,813 INFO L273 TraceCheckUtils]: 54: Hoare triple {22209#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {22209#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:58:00,814 INFO L273 TraceCheckUtils]: 53: Hoare triple {22216#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22209#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:58:00,815 INFO L273 TraceCheckUtils]: 52: Hoare triple {22216#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {22216#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,816 INFO L273 TraceCheckUtils]: 51: Hoare triple {22223#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {22216#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,816 INFO L273 TraceCheckUtils]: 50: Hoare triple {22223#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {22223#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:58:00,817 INFO L273 TraceCheckUtils]: 49: Hoare triple {22230#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {22223#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:58:00,818 INFO L273 TraceCheckUtils]: 48: Hoare triple {22230#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {22230#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:58:00,819 INFO L273 TraceCheckUtils]: 47: Hoare triple {22237#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {22230#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:58:00,820 INFO L273 TraceCheckUtils]: 46: Hoare triple {22237#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {22237#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:58:00,821 INFO L273 TraceCheckUtils]: 45: Hoare triple {22244#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {22237#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:58:00,821 INFO L273 TraceCheckUtils]: 44: Hoare triple {22244#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {22244#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:58:00,822 INFO L273 TraceCheckUtils]: 43: Hoare triple {22251#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {22244#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:58:00,823 INFO L273 TraceCheckUtils]: 42: Hoare triple {22251#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {22251#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:58:00,824 INFO L273 TraceCheckUtils]: 41: Hoare triple {22258#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {22251#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:58:00,824 INFO L273 TraceCheckUtils]: 40: Hoare triple {22258#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {22258#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:58:00,825 INFO L273 TraceCheckUtils]: 39: Hoare triple {22265#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22258#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:58:00,826 INFO L273 TraceCheckUtils]: 38: Hoare triple {22265#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {22265#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,827 INFO L273 TraceCheckUtils]: 37: Hoare triple {22272#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22265#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,827 INFO L273 TraceCheckUtils]: 36: Hoare triple {22272#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {22272#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,828 INFO L273 TraceCheckUtils]: 35: Hoare triple {22279#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22272#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,829 INFO L273 TraceCheckUtils]: 34: Hoare triple {22279#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {22279#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,830 INFO L273 TraceCheckUtils]: 33: Hoare triple {22286#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {22279#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,830 INFO L273 TraceCheckUtils]: 32: Hoare triple {22286#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {22286#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:58:00,831 INFO L273 TraceCheckUtils]: 31: Hoare triple {22293#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22286#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:58:00,832 INFO L273 TraceCheckUtils]: 30: Hoare triple {22293#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {22293#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,833 INFO L273 TraceCheckUtils]: 29: Hoare triple {22300#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {22293#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,834 INFO L273 TraceCheckUtils]: 28: Hoare triple {22300#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {22300#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:58:00,835 INFO L273 TraceCheckUtils]: 27: Hoare triple {22307#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {22300#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:58:00,835 INFO L273 TraceCheckUtils]: 26: Hoare triple {22307#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {22307#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:58:00,836 INFO L273 TraceCheckUtils]: 25: Hoare triple {22314#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {22307#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:58:00,837 INFO L273 TraceCheckUtils]: 24: Hoare triple {22314#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {22314#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:58:00,838 INFO L273 TraceCheckUtils]: 23: Hoare triple {22321#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22314#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:58:00,838 INFO L273 TraceCheckUtils]: 22: Hoare triple {22321#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {22321#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,839 INFO L273 TraceCheckUtils]: 21: Hoare triple {22328#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22321#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,840 INFO L273 TraceCheckUtils]: 20: Hoare triple {22328#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {22328#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,841 INFO L273 TraceCheckUtils]: 19: Hoare triple {22335#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {22328#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,841 INFO L273 TraceCheckUtils]: 18: Hoare triple {22335#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {22335#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:58:00,842 INFO L273 TraceCheckUtils]: 17: Hoare triple {22342#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {22335#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:58:00,843 INFO L273 TraceCheckUtils]: 16: Hoare triple {22342#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {22342#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,844 INFO L273 TraceCheckUtils]: 15: Hoare triple {22349#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {22342#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:58:00,845 INFO L273 TraceCheckUtils]: 14: Hoare triple {22349#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {22349#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 17:58:00,846 INFO L273 TraceCheckUtils]: 13: Hoare triple {22356#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {22349#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 17:58:00,846 INFO L273 TraceCheckUtils]: 12: Hoare triple {22356#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {22356#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 17:58:00,847 INFO L273 TraceCheckUtils]: 11: Hoare triple {22363#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {22356#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 17:58:00,848 INFO L273 TraceCheckUtils]: 10: Hoare triple {22363#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {22363#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 17:58:00,849 INFO L273 TraceCheckUtils]: 9: Hoare triple {22370#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {22363#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 17:58:00,849 INFO L273 TraceCheckUtils]: 8: Hoare triple {22370#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {22370#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 17:58:00,850 INFO L273 TraceCheckUtils]: 7: Hoare triple {22377#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {22370#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 17:58:00,851 INFO L273 TraceCheckUtils]: 6: Hoare triple {22377#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {22377#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 17:58:00,852 INFO L273 TraceCheckUtils]: 5: Hoare triple {22384#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {22377#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 17:58:00,852 INFO L273 TraceCheckUtils]: 4: Hoare triple {22384#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {22384#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 17:58:00,853 INFO L273 TraceCheckUtils]: 3: Hoare triple {22391#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {22384#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 17:58:00,854 INFO L273 TraceCheckUtils]: 2: Hoare triple {22391#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {22391#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 17:58:00,855 INFO L273 TraceCheckUtils]: 1: Hoare triple {22398#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {22391#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 17:58:00,856 INFO L273 TraceCheckUtils]: 0: Hoare triple {21777#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {22398#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 17:58:00,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 0 proven. 1640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:58:00,900 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:58:00,900 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43, 43] total 128 [2018-12-18 17:58:00,900 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:58:00,901 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 83 [2018-12-18 17:58:00,901 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:58:00,901 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 87 states. [2018-12-18 17:58:01,108 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 165 edges. 165 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:58:01,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 87 states [2018-12-18 17:58:01,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2018-12-18 17:58:01,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2072, Invalid=14698, Unknown=0, NotChecked=0, Total=16770 [2018-12-18 17:58:01,109 INFO L87 Difference]: Start difference. First operand 84 states and 84 transitions. Second operand 87 states. [2018-12-18 17:58:11,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:58:11,306 INFO L93 Difference]: Finished difference Result 88 states and 88 transitions. [2018-12-18 17:58:11,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-12-18 17:58:11,307 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 83 [2018-12-18 17:58:11,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:58:11,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-12-18 17:58:11,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 88 transitions. [2018-12-18 17:58:11,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-12-18 17:58:11,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 88 transitions. [2018-12-18 17:58:11,309 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 45 states and 88 transitions. [2018-12-18 17:58:11,417 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 88 edges. 88 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:58:11,419 INFO L225 Difference]: With dead ends: 88 [2018-12-18 17:58:11,419 INFO L226 Difference]: Without dead ends: 87 [2018-12-18 17:58:11,420 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3780 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=2072, Invalid=14698, Unknown=0, NotChecked=0, Total=16770 [2018-12-18 17:58:11,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-12-18 17:58:11,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2018-12-18 17:58:11,537 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:58:11,537 INFO L82 GeneralOperation]: Start isEquivalent. First operand 87 states. Second operand 86 states. [2018-12-18 17:58:11,538 INFO L74 IsIncluded]: Start isIncluded. First operand 87 states. Second operand 86 states. [2018-12-18 17:58:11,538 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 86 states. [2018-12-18 17:58:11,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:58:11,539 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2018-12-18 17:58:11,539 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 87 transitions. [2018-12-18 17:58:11,540 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:58:11,540 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:58:11,540 INFO L74 IsIncluded]: Start isIncluded. First operand 86 states. Second operand 87 states. [2018-12-18 17:58:11,540 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 87 states. [2018-12-18 17:58:11,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:58:11,541 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2018-12-18 17:58:11,541 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 87 transitions. [2018-12-18 17:58:11,542 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:58:11,542 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:58:11,542 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:58:11,542 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:58:11,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-12-18 17:58:11,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 86 transitions. [2018-12-18 17:58:11,543 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 86 transitions. Word has length 83 [2018-12-18 17:58:11,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:58:11,543 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 86 transitions. [2018-12-18 17:58:11,543 INFO L481 AbstractCegarLoop]: Interpolant automaton has 87 states. [2018-12-18 17:58:11,543 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 86 transitions. [2018-12-18 17:58:11,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-12-18 17:58:11,544 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:58:11,544 INFO L402 BasicCegarLoop]: trace histogram [42, 41, 1, 1] [2018-12-18 17:58:11,544 INFO L423 AbstractCegarLoop]: === Iteration 42 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:58:11,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:58:11,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1765011826, now seen corresponding path program 41 times [2018-12-18 17:58:11,544 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:58:11,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:58:11,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:58:11,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:58:11,545 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:58:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:58:13,888 INFO L273 TraceCheckUtils]: 0: Hoare triple {22834#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {22836#(and (or (<= 0 main_i) (< 41 main_n)) (or (<= main_i 0) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,890 INFO L273 TraceCheckUtils]: 1: Hoare triple {22836#(and (or (<= 0 main_i) (< 41 main_n)) (or (<= main_i 0) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22837#(and (or (<= main_n 41) (<= main_i 4)) (or (< 41 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,890 INFO L273 TraceCheckUtils]: 2: Hoare triple {22837#(and (or (<= main_n 41) (<= main_i 4)) (or (< 41 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22837#(and (or (<= main_n 41) (<= main_i 4)) (or (< 41 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,891 INFO L273 TraceCheckUtils]: 3: Hoare triple {22837#(and (or (<= main_n 41) (<= main_i 4)) (or (< 41 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22838#(and (or (<= 8 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 41)))} is VALID [2018-12-18 17:58:13,892 INFO L273 TraceCheckUtils]: 4: Hoare triple {22838#(and (or (<= 8 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 41)))} assume i <= n * 4; {22838#(and (or (<= 8 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 41)))} is VALID [2018-12-18 17:58:13,893 INFO L273 TraceCheckUtils]: 5: Hoare triple {22838#(and (or (<= 8 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 8) (<= main_n 41)))} assume a[i] != 23;i := i + 4; {22839#(and (or (< 41 main_n) (<= 12 main_i)) (or (<= main_n 41) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,894 INFO L273 TraceCheckUtils]: 6: Hoare triple {22839#(and (or (< 41 main_n) (<= 12 main_i)) (or (<= main_n 41) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22839#(and (or (< 41 main_n) (<= 12 main_i)) (or (<= main_n 41) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,895 INFO L273 TraceCheckUtils]: 7: Hoare triple {22839#(and (or (< 41 main_n) (<= 12 main_i)) (or (<= main_n 41) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22840#(and (or (<= main_n 41) (<= main_i 16)) (or (< 41 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,896 INFO L273 TraceCheckUtils]: 8: Hoare triple {22840#(and (or (<= main_n 41) (<= main_i 16)) (or (< 41 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22840#(and (or (<= main_n 41) (<= main_i 16)) (or (< 41 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,897 INFO L273 TraceCheckUtils]: 9: Hoare triple {22840#(and (or (<= main_n 41) (<= main_i 16)) (or (< 41 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22841#(and (or (< 41 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 41)))} is VALID [2018-12-18 17:58:13,897 INFO L273 TraceCheckUtils]: 10: Hoare triple {22841#(and (or (< 41 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 41)))} assume i <= n * 4; {22841#(and (or (< 41 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 41)))} is VALID [2018-12-18 17:58:13,898 INFO L273 TraceCheckUtils]: 11: Hoare triple {22841#(and (or (< 41 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 20) (<= main_n 41)))} assume a[i] != 23;i := i + 4; {22842#(and (or (<= 24 main_i) (< 41 main_n)) (or (<= main_i 24) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,899 INFO L273 TraceCheckUtils]: 12: Hoare triple {22842#(and (or (<= 24 main_i) (< 41 main_n)) (or (<= main_i 24) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22842#(and (or (<= 24 main_i) (< 41 main_n)) (or (<= main_i 24) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,900 INFO L273 TraceCheckUtils]: 13: Hoare triple {22842#(and (or (<= 24 main_i) (< 41 main_n)) (or (<= main_i 24) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22843#(and (or (<= main_n 41) (<= main_i 28)) (or (<= 28 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,901 INFO L273 TraceCheckUtils]: 14: Hoare triple {22843#(and (or (<= main_n 41) (<= main_i 28)) (or (<= 28 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22843#(and (or (<= main_n 41) (<= main_i 28)) (or (<= 28 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,902 INFO L273 TraceCheckUtils]: 15: Hoare triple {22843#(and (or (<= main_n 41) (<= main_i 28)) (or (<= 28 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22844#(and (or (<= 32 main_i) (< 41 main_n)) (or (<= main_i 32) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,903 INFO L273 TraceCheckUtils]: 16: Hoare triple {22844#(and (or (<= 32 main_i) (< 41 main_n)) (or (<= main_i 32) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22844#(and (or (<= 32 main_i) (< 41 main_n)) (or (<= main_i 32) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,904 INFO L273 TraceCheckUtils]: 17: Hoare triple {22844#(and (or (<= 32 main_i) (< 41 main_n)) (or (<= main_i 32) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22845#(and (or (< 41 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,905 INFO L273 TraceCheckUtils]: 18: Hoare triple {22845#(and (or (< 41 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22845#(and (or (< 41 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,906 INFO L273 TraceCheckUtils]: 19: Hoare triple {22845#(and (or (< 41 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22846#(and (or (<= 40 main_i) (< 41 main_n)) (or (<= main_i 40) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,906 INFO L273 TraceCheckUtils]: 20: Hoare triple {22846#(and (or (<= 40 main_i) (< 41 main_n)) (or (<= main_i 40) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22846#(and (or (<= 40 main_i) (< 41 main_n)) (or (<= main_i 40) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,907 INFO L273 TraceCheckUtils]: 21: Hoare triple {22846#(and (or (<= 40 main_i) (< 41 main_n)) (or (<= main_i 40) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22847#(and (or (<= main_n 41) (<= main_i 44)) (or (<= 44 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,908 INFO L273 TraceCheckUtils]: 22: Hoare triple {22847#(and (or (<= main_n 41) (<= main_i 44)) (or (<= 44 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22847#(and (or (<= main_n 41) (<= main_i 44)) (or (<= 44 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,909 INFO L273 TraceCheckUtils]: 23: Hoare triple {22847#(and (or (<= main_n 41) (<= main_i 44)) (or (<= 44 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22848#(and (or (<= 48 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,910 INFO L273 TraceCheckUtils]: 24: Hoare triple {22848#(and (or (<= 48 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22848#(and (or (<= 48 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,911 INFO L273 TraceCheckUtils]: 25: Hoare triple {22848#(and (or (<= 48 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22849#(and (or (<= main_i 52) (<= main_n 41)) (or (< 41 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,912 INFO L273 TraceCheckUtils]: 26: Hoare triple {22849#(and (or (<= main_i 52) (<= main_n 41)) (or (< 41 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22849#(and (or (<= main_i 52) (<= main_n 41)) (or (< 41 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,913 INFO L273 TraceCheckUtils]: 27: Hoare triple {22849#(and (or (<= main_i 52) (<= main_n 41)) (or (< 41 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22850#(and (or (< 41 main_n) (<= 56 main_i)) (or (<= main_n 41) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,913 INFO L273 TraceCheckUtils]: 28: Hoare triple {22850#(and (or (< 41 main_n) (<= 56 main_i)) (or (<= main_n 41) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22850#(and (or (< 41 main_n) (<= 56 main_i)) (or (<= main_n 41) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,914 INFO L273 TraceCheckUtils]: 29: Hoare triple {22850#(and (or (< 41 main_n) (<= 56 main_i)) (or (<= main_n 41) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22851#(and (or (< 41 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 60) (<= main_n 41)))} is VALID [2018-12-18 17:58:13,915 INFO L273 TraceCheckUtils]: 30: Hoare triple {22851#(and (or (< 41 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 60) (<= main_n 41)))} assume i <= n * 4; {22851#(and (or (< 41 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 60) (<= main_n 41)))} is VALID [2018-12-18 17:58:13,916 INFO L273 TraceCheckUtils]: 31: Hoare triple {22851#(and (or (< 41 main_n) (<= 60 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 60) (<= main_n 41)))} assume a[i] != 23;i := i + 4; {22852#(and (or (<= main_i 64) (<= main_n 41)) (or (<= 64 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,917 INFO L273 TraceCheckUtils]: 32: Hoare triple {22852#(and (or (<= main_i 64) (<= main_n 41)) (or (<= 64 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22852#(and (or (<= main_i 64) (<= main_n 41)) (or (<= 64 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,918 INFO L273 TraceCheckUtils]: 33: Hoare triple {22852#(and (or (<= main_i 64) (<= main_n 41)) (or (<= 64 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22853#(and (or (<= main_n 41) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 68 main_i)))} is VALID [2018-12-18 17:58:13,919 INFO L273 TraceCheckUtils]: 34: Hoare triple {22853#(and (or (<= main_n 41) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 68 main_i)))} assume i <= n * 4; {22853#(and (or (<= main_n 41) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 68 main_i)))} is VALID [2018-12-18 17:58:13,920 INFO L273 TraceCheckUtils]: 35: Hoare triple {22853#(and (or (<= main_n 41) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 68 main_i)))} assume a[i] != 23;i := i + 4; {22854#(and (or (<= main_n 41) (<= main_i 72)) (or (<= 72 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,920 INFO L273 TraceCheckUtils]: 36: Hoare triple {22854#(and (or (<= main_n 41) (<= main_i 72)) (or (<= 72 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22854#(and (or (<= main_n 41) (<= main_i 72)) (or (<= 72 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,921 INFO L273 TraceCheckUtils]: 37: Hoare triple {22854#(and (or (<= main_n 41) (<= main_i 72)) (or (<= 72 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22855#(and (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 41 main_n)) (or (<= main_i 76) (<= main_n 41)))} is VALID [2018-12-18 17:58:13,922 INFO L273 TraceCheckUtils]: 38: Hoare triple {22855#(and (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 41 main_n)) (or (<= main_i 76) (<= main_n 41)))} assume i <= n * 4; {22855#(and (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 41 main_n)) (or (<= main_i 76) (<= main_n 41)))} is VALID [2018-12-18 17:58:13,923 INFO L273 TraceCheckUtils]: 39: Hoare triple {22855#(and (= 23 (select main_a (* 4 main_n))) (or (<= 76 main_i) (< 41 main_n)) (or (<= main_i 76) (<= main_n 41)))} assume a[i] != 23;i := i + 4; {22856#(and (or (<= main_n 41) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 41 main_n)))} is VALID [2018-12-18 17:58:13,924 INFO L273 TraceCheckUtils]: 40: Hoare triple {22856#(and (or (<= main_n 41) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 41 main_n)))} assume i <= n * 4; {22856#(and (or (<= main_n 41) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 41 main_n)))} is VALID [2018-12-18 17:58:13,925 INFO L273 TraceCheckUtils]: 41: Hoare triple {22856#(and (or (<= main_n 41) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 41 main_n)))} assume a[i] != 23;i := i + 4; {22857#(and (or (<= main_i 84) (<= main_n 41)) (or (< 41 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,926 INFO L273 TraceCheckUtils]: 42: Hoare triple {22857#(and (or (<= main_i 84) (<= main_n 41)) (or (< 41 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22857#(and (or (<= main_i 84) (<= main_n 41)) (or (< 41 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,927 INFO L273 TraceCheckUtils]: 43: Hoare triple {22857#(and (or (<= main_i 84) (<= main_n 41)) (or (< 41 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22858#(and (or (< 41 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,928 INFO L273 TraceCheckUtils]: 44: Hoare triple {22858#(and (or (< 41 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22858#(and (or (< 41 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,929 INFO L273 TraceCheckUtils]: 45: Hoare triple {22858#(and (or (< 41 main_n) (<= 88 main_i)) (or (<= main_i 88) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22859#(and (or (<= main_i 92) (<= main_n 41)) (or (< 41 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,929 INFO L273 TraceCheckUtils]: 46: Hoare triple {22859#(and (or (<= main_i 92) (<= main_n 41)) (or (< 41 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22859#(and (or (<= main_i 92) (<= main_n 41)) (or (< 41 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,930 INFO L273 TraceCheckUtils]: 47: Hoare triple {22859#(and (or (<= main_i 92) (<= main_n 41)) (or (< 41 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22860#(and (or (<= 96 main_i) (< 41 main_n)) (or (<= main_i 96) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,931 INFO L273 TraceCheckUtils]: 48: Hoare triple {22860#(and (or (<= 96 main_i) (< 41 main_n)) (or (<= main_i 96) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22860#(and (or (<= 96 main_i) (< 41 main_n)) (or (<= main_i 96) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,932 INFO L273 TraceCheckUtils]: 49: Hoare triple {22860#(and (or (<= 96 main_i) (< 41 main_n)) (or (<= main_i 96) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22861#(and (or (<= main_i 100) (<= main_n 41)) (or (<= 100 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,933 INFO L273 TraceCheckUtils]: 50: Hoare triple {22861#(and (or (<= main_i 100) (<= main_n 41)) (or (<= 100 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22861#(and (or (<= main_i 100) (<= main_n 41)) (or (<= 100 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,934 INFO L273 TraceCheckUtils]: 51: Hoare triple {22861#(and (or (<= main_i 100) (<= main_n 41)) (or (<= 100 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22862#(and (or (<= 104 main_i) (< 41 main_n)) (or (<= main_i 104) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,935 INFO L273 TraceCheckUtils]: 52: Hoare triple {22862#(and (or (<= 104 main_i) (< 41 main_n)) (or (<= main_i 104) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22862#(and (or (<= 104 main_i) (< 41 main_n)) (or (<= main_i 104) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,936 INFO L273 TraceCheckUtils]: 53: Hoare triple {22862#(and (or (<= 104 main_i) (< 41 main_n)) (or (<= main_i 104) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22863#(and (or (<= 108 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,936 INFO L273 TraceCheckUtils]: 54: Hoare triple {22863#(and (or (<= 108 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22863#(and (or (<= 108 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,937 INFO L273 TraceCheckUtils]: 55: Hoare triple {22863#(and (or (<= 108 main_i) (< 41 main_n)) (or (<= main_n 41) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22864#(and (or (<= main_n 41) (<= main_i 112)) (or (< 41 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,938 INFO L273 TraceCheckUtils]: 56: Hoare triple {22864#(and (or (<= main_n 41) (<= main_i 112)) (or (< 41 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22864#(and (or (<= main_n 41) (<= main_i 112)) (or (< 41 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,939 INFO L273 TraceCheckUtils]: 57: Hoare triple {22864#(and (or (<= main_n 41) (<= main_i 112)) (or (< 41 main_n) (<= 112 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22865#(and (or (<= 116 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 116) (<= main_n 41)))} is VALID [2018-12-18 17:58:13,940 INFO L273 TraceCheckUtils]: 58: Hoare triple {22865#(and (or (<= 116 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 116) (<= main_n 41)))} assume i <= n * 4; {22865#(and (or (<= 116 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 116) (<= main_n 41)))} is VALID [2018-12-18 17:58:13,941 INFO L273 TraceCheckUtils]: 59: Hoare triple {22865#(and (or (<= 116 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 116) (<= main_n 41)))} assume a[i] != 23;i := i + 4; {22866#(and (or (<= main_i 120) (<= main_n 41)) (or (<= 120 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,942 INFO L273 TraceCheckUtils]: 60: Hoare triple {22866#(and (or (<= main_i 120) (<= main_n 41)) (or (<= 120 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22866#(and (or (<= main_i 120) (<= main_n 41)) (or (<= 120 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,943 INFO L273 TraceCheckUtils]: 61: Hoare triple {22866#(and (or (<= main_i 120) (<= main_n 41)) (or (<= 120 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22867#(and (or (<= main_n 41) (<= main_i 124)) (or (<= 124 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,944 INFO L273 TraceCheckUtils]: 62: Hoare triple {22867#(and (or (<= main_n 41) (<= main_i 124)) (or (<= 124 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22867#(and (or (<= main_n 41) (<= main_i 124)) (or (<= 124 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,945 INFO L273 TraceCheckUtils]: 63: Hoare triple {22867#(and (or (<= main_n 41) (<= main_i 124)) (or (<= 124 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22868#(and (or (< 41 main_n) (<= 128 main_i)) (or (<= main_n 41) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,945 INFO L273 TraceCheckUtils]: 64: Hoare triple {22868#(and (or (< 41 main_n) (<= 128 main_i)) (or (<= main_n 41) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22868#(and (or (< 41 main_n) (<= 128 main_i)) (or (<= main_n 41) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,946 INFO L273 TraceCheckUtils]: 65: Hoare triple {22868#(and (or (< 41 main_n) (<= 128 main_i)) (or (<= main_n 41) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22869#(and (or (<= 132 main_i) (< 41 main_n)) (or (<= main_i 132) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,947 INFO L273 TraceCheckUtils]: 66: Hoare triple {22869#(and (or (<= 132 main_i) (< 41 main_n)) (or (<= main_i 132) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22869#(and (or (<= 132 main_i) (< 41 main_n)) (or (<= main_i 132) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,948 INFO L273 TraceCheckUtils]: 67: Hoare triple {22869#(and (or (<= 132 main_i) (< 41 main_n)) (or (<= main_i 132) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22870#(and (or (<= main_i 136) (<= main_n 41)) (or (<= 136 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,949 INFO L273 TraceCheckUtils]: 68: Hoare triple {22870#(and (or (<= main_i 136) (<= main_n 41)) (or (<= 136 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22870#(and (or (<= main_i 136) (<= main_n 41)) (or (<= 136 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,950 INFO L273 TraceCheckUtils]: 69: Hoare triple {22870#(and (or (<= main_i 136) (<= main_n 41)) (or (<= 136 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22871#(and (or (<= main_n 41) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 140 main_i)))} is VALID [2018-12-18 17:58:13,951 INFO L273 TraceCheckUtils]: 70: Hoare triple {22871#(and (or (<= main_n 41) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 140 main_i)))} assume i <= n * 4; {22871#(and (or (<= main_n 41) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 140 main_i)))} is VALID [2018-12-18 17:58:13,952 INFO L273 TraceCheckUtils]: 71: Hoare triple {22871#(and (or (<= main_n 41) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))) (or (< 41 main_n) (<= 140 main_i)))} assume a[i] != 23;i := i + 4; {22872#(and (or (<= main_n 41) (<= main_i 144)) (or (<= 144 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,952 INFO L273 TraceCheckUtils]: 72: Hoare triple {22872#(and (or (<= main_n 41) (<= main_i 144)) (or (<= 144 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22872#(and (or (<= main_n 41) (<= main_i 144)) (or (<= 144 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,953 INFO L273 TraceCheckUtils]: 73: Hoare triple {22872#(and (or (<= main_n 41) (<= main_i 144)) (or (<= 144 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22873#(and (or (< 41 main_n) (<= 148 main_i)) (or (<= main_n 41) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,954 INFO L273 TraceCheckUtils]: 74: Hoare triple {22873#(and (or (< 41 main_n) (<= 148 main_i)) (or (<= main_n 41) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22873#(and (or (< 41 main_n) (<= 148 main_i)) (or (<= main_n 41) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,955 INFO L273 TraceCheckUtils]: 75: Hoare triple {22873#(and (or (< 41 main_n) (<= 148 main_i)) (or (<= main_n 41) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22874#(and (or (<= main_n 41) (<= main_i 152)) (or (<= 152 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,956 INFO L273 TraceCheckUtils]: 76: Hoare triple {22874#(and (or (<= main_n 41) (<= main_i 152)) (or (<= 152 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22874#(and (or (<= main_n 41) (<= main_i 152)) (or (<= 152 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,957 INFO L273 TraceCheckUtils]: 77: Hoare triple {22874#(and (or (<= main_n 41) (<= main_i 152)) (or (<= 152 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22875#(and (or (<= main_i 156) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 41 main_n)))} is VALID [2018-12-18 17:58:13,958 INFO L273 TraceCheckUtils]: 78: Hoare triple {22875#(and (or (<= main_i 156) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 41 main_n)))} assume i <= n * 4; {22875#(and (or (<= main_i 156) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 41 main_n)))} is VALID [2018-12-18 17:58:13,959 INFO L273 TraceCheckUtils]: 79: Hoare triple {22875#(and (or (<= main_i 156) (<= main_n 41)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 41 main_n)))} assume a[i] != 23;i := i + 4; {22876#(and (or (<= main_n 41) (<= main_i 160)) (or (<= 160 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,959 INFO L273 TraceCheckUtils]: 80: Hoare triple {22876#(and (or (<= main_n 41) (<= main_i 160)) (or (<= 160 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22876#(and (or (<= main_n 41) (<= main_i 160)) (or (<= 160 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:13,961 INFO L273 TraceCheckUtils]: 81: Hoare triple {22876#(and (or (<= main_n 41) (<= main_i 160)) (or (<= 160 main_i) (< 41 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22877#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 164) (<= main_n 41)) (or (<= (* 4 main_n) main_i) (< 41 main_n)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2018-12-18 17:58:13,962 INFO L273 TraceCheckUtils]: 82: Hoare triple {22877#(and (or (= (* 4 main_n) main_i) (and (or (<= main_i 164) (<= main_n 41)) (or (<= (* 4 main_n) main_i) (< 41 main_n)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {22878#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 164) (< 41 main_n))))} is VALID [2018-12-18 17:58:13,963 INFO L273 TraceCheckUtils]: 83: Hoare triple {22878#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 164) (< 41 main_n))))} assume a[i] != 23;i := i + 4; {22879#(and (< 41 main_n) (<= main_i 168))} is VALID [2018-12-18 17:58:13,963 INFO L273 TraceCheckUtils]: 84: Hoare triple {22879#(and (< 41 main_n) (<= main_i 168))} assume !(i <= n * 4); {22835#false} is VALID [2018-12-18 17:58:13,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 1722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:58:13,995 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:58:13,995 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:58:13,995 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:58:13,995 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:58:13,995 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:58:13,995 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:58:14,020 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-18 17:58:14,020 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-18 17:58:14,130 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 42 check-sat command(s) [2018-12-18 17:58:14,130 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:58:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:58:14,160 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:58:14,272 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:58:14,297 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:58:14,372 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:58:14,372 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:58:14,375 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:58:14,375 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_45]. (and (= (store v_main_a_45 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:58:14,375 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:58:17,334 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:58:17,336 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:58:17,342 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:58:17,343 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:58:17,345 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:58:17,345 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 164) 23)) (<= 164 .cse0) (= 23 (select main_a .cse0)) (<= main_i 168))) [2018-12-18 17:58:17,346 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 164 .cse0) (not (= 164 .cse0)) (<= main_i 168))) [2018-12-18 17:58:17,399 INFO L273 TraceCheckUtils]: 0: Hoare triple {22834#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {22883#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,399 INFO L273 TraceCheckUtils]: 1: Hoare triple {22883#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22887#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:58:17,400 INFO L273 TraceCheckUtils]: 2: Hoare triple {22887#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {22887#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:58:17,400 INFO L273 TraceCheckUtils]: 3: Hoare triple {22887#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {22894#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,401 INFO L273 TraceCheckUtils]: 4: Hoare triple {22894#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22894#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,401 INFO L273 TraceCheckUtils]: 5: Hoare triple {22894#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22901#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:58:17,402 INFO L273 TraceCheckUtils]: 6: Hoare triple {22901#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {22901#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:58:17,402 INFO L273 TraceCheckUtils]: 7: Hoare triple {22901#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {22908#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,417 INFO L273 TraceCheckUtils]: 8: Hoare triple {22908#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22908#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,418 INFO L273 TraceCheckUtils]: 9: Hoare triple {22908#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22915#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,419 INFO L273 TraceCheckUtils]: 10: Hoare triple {22915#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22915#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,419 INFO L273 TraceCheckUtils]: 11: Hoare triple {22915#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22922#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,419 INFO L273 TraceCheckUtils]: 12: Hoare triple {22922#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22922#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,420 INFO L273 TraceCheckUtils]: 13: Hoare triple {22922#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22929#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,420 INFO L273 TraceCheckUtils]: 14: Hoare triple {22929#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22929#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,421 INFO L273 TraceCheckUtils]: 15: Hoare triple {22929#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22936#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,421 INFO L273 TraceCheckUtils]: 16: Hoare triple {22936#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22936#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,422 INFO L273 TraceCheckUtils]: 17: Hoare triple {22936#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22943#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,422 INFO L273 TraceCheckUtils]: 18: Hoare triple {22943#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22943#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,422 INFO L273 TraceCheckUtils]: 19: Hoare triple {22943#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22950#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,423 INFO L273 TraceCheckUtils]: 20: Hoare triple {22950#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22950#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,424 INFO L273 TraceCheckUtils]: 21: Hoare triple {22950#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22957#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,424 INFO L273 TraceCheckUtils]: 22: Hoare triple {22957#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22957#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,425 INFO L273 TraceCheckUtils]: 23: Hoare triple {22957#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22964#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,426 INFO L273 TraceCheckUtils]: 24: Hoare triple {22964#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22964#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,426 INFO L273 TraceCheckUtils]: 25: Hoare triple {22964#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22971#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,427 INFO L273 TraceCheckUtils]: 26: Hoare triple {22971#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22971#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,428 INFO L273 TraceCheckUtils]: 27: Hoare triple {22971#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22978#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,428 INFO L273 TraceCheckUtils]: 28: Hoare triple {22978#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22978#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,429 INFO L273 TraceCheckUtils]: 29: Hoare triple {22978#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22985#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,430 INFO L273 TraceCheckUtils]: 30: Hoare triple {22985#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22985#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,431 INFO L273 TraceCheckUtils]: 31: Hoare triple {22985#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22992#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,431 INFO L273 TraceCheckUtils]: 32: Hoare triple {22992#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22992#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,432 INFO L273 TraceCheckUtils]: 33: Hoare triple {22992#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {22999#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,432 INFO L273 TraceCheckUtils]: 34: Hoare triple {22999#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {22999#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,433 INFO L273 TraceCheckUtils]: 35: Hoare triple {22999#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23006#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,434 INFO L273 TraceCheckUtils]: 36: Hoare triple {23006#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23006#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,435 INFO L273 TraceCheckUtils]: 37: Hoare triple {23006#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23013#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,435 INFO L273 TraceCheckUtils]: 38: Hoare triple {23013#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23013#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,436 INFO L273 TraceCheckUtils]: 39: Hoare triple {23013#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:58:17,436 INFO L273 TraceCheckUtils]: 40: Hoare triple {23020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {23020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:58:17,437 INFO L273 TraceCheckUtils]: 41: Hoare triple {23020#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {23027#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,438 INFO L273 TraceCheckUtils]: 42: Hoare triple {23027#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23027#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,439 INFO L273 TraceCheckUtils]: 43: Hoare triple {23027#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23034#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,439 INFO L273 TraceCheckUtils]: 44: Hoare triple {23034#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23034#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,440 INFO L273 TraceCheckUtils]: 45: Hoare triple {23034#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23041#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,441 INFO L273 TraceCheckUtils]: 46: Hoare triple {23041#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23041#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,441 INFO L273 TraceCheckUtils]: 47: Hoare triple {23041#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23048#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,442 INFO L273 TraceCheckUtils]: 48: Hoare triple {23048#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23048#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,443 INFO L273 TraceCheckUtils]: 49: Hoare triple {23048#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23055#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,443 INFO L273 TraceCheckUtils]: 50: Hoare triple {23055#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23055#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,444 INFO L273 TraceCheckUtils]: 51: Hoare triple {23055#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23062#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,445 INFO L273 TraceCheckUtils]: 52: Hoare triple {23062#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23062#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,445 INFO L273 TraceCheckUtils]: 53: Hoare triple {23062#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23069#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,446 INFO L273 TraceCheckUtils]: 54: Hoare triple {23069#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23069#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,447 INFO L273 TraceCheckUtils]: 55: Hoare triple {23069#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23076#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,447 INFO L273 TraceCheckUtils]: 56: Hoare triple {23076#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23076#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,448 INFO L273 TraceCheckUtils]: 57: Hoare triple {23076#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23083#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,449 INFO L273 TraceCheckUtils]: 58: Hoare triple {23083#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23083#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,449 INFO L273 TraceCheckUtils]: 59: Hoare triple {23083#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23090#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,450 INFO L273 TraceCheckUtils]: 60: Hoare triple {23090#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23090#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,451 INFO L273 TraceCheckUtils]: 61: Hoare triple {23090#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23097#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,451 INFO L273 TraceCheckUtils]: 62: Hoare triple {23097#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23097#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,452 INFO L273 TraceCheckUtils]: 63: Hoare triple {23097#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23104#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,453 INFO L273 TraceCheckUtils]: 64: Hoare triple {23104#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23104#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,454 INFO L273 TraceCheckUtils]: 65: Hoare triple {23104#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23111#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,454 INFO L273 TraceCheckUtils]: 66: Hoare triple {23111#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23111#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,455 INFO L273 TraceCheckUtils]: 67: Hoare triple {23111#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23118#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,456 INFO L273 TraceCheckUtils]: 68: Hoare triple {23118#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23118#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,456 INFO L273 TraceCheckUtils]: 69: Hoare triple {23118#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23125#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 17:58:17,457 INFO L273 TraceCheckUtils]: 70: Hoare triple {23125#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {23125#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 17:58:17,458 INFO L273 TraceCheckUtils]: 71: Hoare triple {23125#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {23132#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,459 INFO L273 TraceCheckUtils]: 72: Hoare triple {23132#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23132#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,459 INFO L273 TraceCheckUtils]: 73: Hoare triple {23132#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23139#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,460 INFO L273 TraceCheckUtils]: 74: Hoare triple {23139#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23139#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,461 INFO L273 TraceCheckUtils]: 75: Hoare triple {23139#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23146#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,461 INFO L273 TraceCheckUtils]: 76: Hoare triple {23146#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23146#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,462 INFO L273 TraceCheckUtils]: 77: Hoare triple {23146#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23153#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,463 INFO L273 TraceCheckUtils]: 78: Hoare triple {23153#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23153#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,463 INFO L273 TraceCheckUtils]: 79: Hoare triple {23153#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23160#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,464 INFO L273 TraceCheckUtils]: 80: Hoare triple {23160#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23160#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:17,465 INFO L273 TraceCheckUtils]: 81: Hoare triple {23160#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23167#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 17:58:17,465 INFO L273 TraceCheckUtils]: 82: Hoare triple {23167#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {23171#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 17:58:17,466 INFO L273 TraceCheckUtils]: 83: Hoare triple {23171#(and (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {22879#(and (< 41 main_n) (<= main_i 168))} is VALID [2018-12-18 17:58:17,467 INFO L273 TraceCheckUtils]: 84: Hoare triple {22879#(and (< 41 main_n) (<= main_i 168))} assume !(i <= n * 4); {22835#false} is VALID [2018-12-18 17:58:17,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 1722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:58:17,484 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:58:22,498 INFO L273 TraceCheckUtils]: 84: Hoare triple {23178#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {22835#false} is VALID [2018-12-18 17:58:22,499 INFO L273 TraceCheckUtils]: 83: Hoare triple {23182#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {23178#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:58:22,499 INFO L273 TraceCheckUtils]: 82: Hoare triple {23186#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {23182#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:58:22,500 INFO L273 TraceCheckUtils]: 81: Hoare triple {23190#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {23186#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:58:22,500 INFO L273 TraceCheckUtils]: 80: Hoare triple {23190#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {23190#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:58:22,501 INFO L273 TraceCheckUtils]: 79: Hoare triple {23197#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {23190#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:58:22,501 INFO L273 TraceCheckUtils]: 78: Hoare triple {23197#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {23197#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:58:22,502 INFO L273 TraceCheckUtils]: 77: Hoare triple {23204#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {23197#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:58:22,503 INFO L273 TraceCheckUtils]: 76: Hoare triple {23204#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {23204#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:58:22,504 INFO L273 TraceCheckUtils]: 75: Hoare triple {23211#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {23204#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:58:22,504 INFO L273 TraceCheckUtils]: 74: Hoare triple {23211#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {23211#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:58:22,506 INFO L273 TraceCheckUtils]: 73: Hoare triple {23218#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23211#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:58:22,506 INFO L273 TraceCheckUtils]: 72: Hoare triple {23218#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {23218#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,507 INFO L273 TraceCheckUtils]: 71: Hoare triple {23225#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {23218#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,508 INFO L273 TraceCheckUtils]: 70: Hoare triple {23225#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {23225#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:58:22,509 INFO L273 TraceCheckUtils]: 69: Hoare triple {23232#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23225#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:58:22,509 INFO L273 TraceCheckUtils]: 68: Hoare triple {23232#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {23232#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,510 INFO L273 TraceCheckUtils]: 67: Hoare triple {23239#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23232#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,511 INFO L273 TraceCheckUtils]: 66: Hoare triple {23239#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {23239#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,512 INFO L273 TraceCheckUtils]: 65: Hoare triple {23246#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23239#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,512 INFO L273 TraceCheckUtils]: 64: Hoare triple {23246#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {23246#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,513 INFO L273 TraceCheckUtils]: 63: Hoare triple {23253#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {23246#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,514 INFO L273 TraceCheckUtils]: 62: Hoare triple {23253#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {23253#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:58:22,515 INFO L273 TraceCheckUtils]: 61: Hoare triple {23260#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23253#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:58:22,515 INFO L273 TraceCheckUtils]: 60: Hoare triple {23260#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {23260#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,516 INFO L273 TraceCheckUtils]: 59: Hoare triple {23267#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23260#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,517 INFO L273 TraceCheckUtils]: 58: Hoare triple {23267#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {23267#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,518 INFO L273 TraceCheckUtils]: 57: Hoare triple {23274#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {23267#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,518 INFO L273 TraceCheckUtils]: 56: Hoare triple {23274#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {23274#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:58:22,520 INFO L273 TraceCheckUtils]: 55: Hoare triple {23281#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23274#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:58:22,520 INFO L273 TraceCheckUtils]: 54: Hoare triple {23281#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {23281#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,521 INFO L273 TraceCheckUtils]: 53: Hoare triple {23288#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {23281#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,522 INFO L273 TraceCheckUtils]: 52: Hoare triple {23288#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {23288#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:58:22,523 INFO L273 TraceCheckUtils]: 51: Hoare triple {23295#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {23288#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:58:22,523 INFO L273 TraceCheckUtils]: 50: Hoare triple {23295#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {23295#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:58:22,524 INFO L273 TraceCheckUtils]: 49: Hoare triple {23302#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {23295#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:58:22,525 INFO L273 TraceCheckUtils]: 48: Hoare triple {23302#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {23302#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:58:22,526 INFO L273 TraceCheckUtils]: 47: Hoare triple {23309#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {23302#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:58:22,526 INFO L273 TraceCheckUtils]: 46: Hoare triple {23309#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {23309#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:58:22,527 INFO L273 TraceCheckUtils]: 45: Hoare triple {23316#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {23309#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:58:22,528 INFO L273 TraceCheckUtils]: 44: Hoare triple {23316#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {23316#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:58:22,529 INFO L273 TraceCheckUtils]: 43: Hoare triple {23323#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {23316#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:58:22,529 INFO L273 TraceCheckUtils]: 42: Hoare triple {23323#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {23323#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:58:22,530 INFO L273 TraceCheckUtils]: 41: Hoare triple {23330#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23323#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:58:22,531 INFO L273 TraceCheckUtils]: 40: Hoare triple {23330#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {23330#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,532 INFO L273 TraceCheckUtils]: 39: Hoare triple {23337#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23330#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,532 INFO L273 TraceCheckUtils]: 38: Hoare triple {23337#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {23337#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,533 INFO L273 TraceCheckUtils]: 37: Hoare triple {23344#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23337#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,534 INFO L273 TraceCheckUtils]: 36: Hoare triple {23344#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {23344#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,535 INFO L273 TraceCheckUtils]: 35: Hoare triple {23351#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {23344#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,553 INFO L273 TraceCheckUtils]: 34: Hoare triple {23351#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {23351#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:58:22,555 INFO L273 TraceCheckUtils]: 33: Hoare triple {23358#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23351#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:58:22,556 INFO L273 TraceCheckUtils]: 32: Hoare triple {23358#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {23358#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,556 INFO L273 TraceCheckUtils]: 31: Hoare triple {23365#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {23358#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,557 INFO L273 TraceCheckUtils]: 30: Hoare triple {23365#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {23365#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:58:22,557 INFO L273 TraceCheckUtils]: 29: Hoare triple {23372#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {23365#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:58:22,558 INFO L273 TraceCheckUtils]: 28: Hoare triple {23372#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {23372#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:58:22,558 INFO L273 TraceCheckUtils]: 27: Hoare triple {23379#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {23372#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:58:22,559 INFO L273 TraceCheckUtils]: 26: Hoare triple {23379#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {23379#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:58:22,560 INFO L273 TraceCheckUtils]: 25: Hoare triple {23386#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23379#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:58:22,561 INFO L273 TraceCheckUtils]: 24: Hoare triple {23386#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {23386#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,562 INFO L273 TraceCheckUtils]: 23: Hoare triple {23393#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23386#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,562 INFO L273 TraceCheckUtils]: 22: Hoare triple {23393#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {23393#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,563 INFO L273 TraceCheckUtils]: 21: Hoare triple {23400#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {23393#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,564 INFO L273 TraceCheckUtils]: 20: Hoare triple {23400#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {23400#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:58:22,565 INFO L273 TraceCheckUtils]: 19: Hoare triple {23407#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {23400#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:58:22,565 INFO L273 TraceCheckUtils]: 18: Hoare triple {23407#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {23407#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,566 INFO L273 TraceCheckUtils]: 17: Hoare triple {23414#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {23407#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:58:22,567 INFO L273 TraceCheckUtils]: 16: Hoare triple {23414#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {23414#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 17:58:22,568 INFO L273 TraceCheckUtils]: 15: Hoare triple {23421#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {23414#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 17:58:22,568 INFO L273 TraceCheckUtils]: 14: Hoare triple {23421#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {23421#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 17:58:22,569 INFO L273 TraceCheckUtils]: 13: Hoare triple {23428#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {23421#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 17:58:22,570 INFO L273 TraceCheckUtils]: 12: Hoare triple {23428#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {23428#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 17:58:22,571 INFO L273 TraceCheckUtils]: 11: Hoare triple {23435#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {23428#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 17:58:22,572 INFO L273 TraceCheckUtils]: 10: Hoare triple {23435#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {23435#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 17:58:22,573 INFO L273 TraceCheckUtils]: 9: Hoare triple {23442#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {23435#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 17:58:22,573 INFO L273 TraceCheckUtils]: 8: Hoare triple {23442#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {23442#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 17:58:22,574 INFO L273 TraceCheckUtils]: 7: Hoare triple {23449#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {23442#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 17:58:22,575 INFO L273 TraceCheckUtils]: 6: Hoare triple {23449#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {23449#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 17:58:22,576 INFO L273 TraceCheckUtils]: 5: Hoare triple {23456#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {23449#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 17:58:22,576 INFO L273 TraceCheckUtils]: 4: Hoare triple {23456#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {23456#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 17:58:22,577 INFO L273 TraceCheckUtils]: 3: Hoare triple {23463#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {23456#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 17:58:22,578 INFO L273 TraceCheckUtils]: 2: Hoare triple {23463#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {23463#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 17:58:22,579 INFO L273 TraceCheckUtils]: 1: Hoare triple {23470#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {23463#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 17:58:22,580 INFO L273 TraceCheckUtils]: 0: Hoare triple {22834#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {23470#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 17:58:22,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 1722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:58:22,625 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:58:22,626 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 131 [2018-12-18 17:58:22,626 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:58:22,626 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 85 [2018-12-18 17:58:22,627 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:58:22,627 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 89 states. [2018-12-18 17:58:22,858 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 169 edges. 169 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:58:22,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 89 states [2018-12-18 17:58:22,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2018-12-18 17:58:22,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2164, Invalid=15392, Unknown=0, NotChecked=0, Total=17556 [2018-12-18 17:58:22,860 INFO L87 Difference]: Start difference. First operand 86 states and 86 transitions. Second operand 89 states. [2018-12-18 17:58:34,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:58:34,912 INFO L93 Difference]: Finished difference Result 90 states and 90 transitions. [2018-12-18 17:58:34,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-12-18 17:58:34,912 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 85 [2018-12-18 17:58:34,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:58:34,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-12-18 17:58:34,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 90 transitions. [2018-12-18 17:58:34,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-12-18 17:58:34,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 90 transitions. [2018-12-18 17:58:34,914 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 46 states and 90 transitions. [2018-12-18 17:58:35,029 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 90 edges. 90 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:58:35,031 INFO L225 Difference]: With dead ends: 90 [2018-12-18 17:58:35,031 INFO L226 Difference]: Without dead ends: 89 [2018-12-18 17:58:35,032 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3956 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=2164, Invalid=15392, Unknown=0, NotChecked=0, Total=17556 [2018-12-18 17:58:35,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-12-18 17:58:35,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 88. [2018-12-18 17:58:35,119 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:58:35,119 INFO L82 GeneralOperation]: Start isEquivalent. First operand 89 states. Second operand 88 states. [2018-12-18 17:58:35,119 INFO L74 IsIncluded]: Start isIncluded. First operand 89 states. Second operand 88 states. [2018-12-18 17:58:35,119 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 88 states. [2018-12-18 17:58:35,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:58:35,121 INFO L93 Difference]: Finished difference Result 89 states and 89 transitions. [2018-12-18 17:58:35,121 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2018-12-18 17:58:35,121 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:58:35,121 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:58:35,121 INFO L74 IsIncluded]: Start isIncluded. First operand 88 states. Second operand 89 states. [2018-12-18 17:58:35,122 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 89 states. [2018-12-18 17:58:35,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:58:35,122 INFO L93 Difference]: Finished difference Result 89 states and 89 transitions. [2018-12-18 17:58:35,123 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2018-12-18 17:58:35,123 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:58:35,123 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:58:35,123 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:58:35,123 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:58:35,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-12-18 17:58:35,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 88 transitions. [2018-12-18 17:58:35,124 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 88 transitions. Word has length 85 [2018-12-18 17:58:35,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:58:35,124 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 88 transitions. [2018-12-18 17:58:35,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has 89 states. [2018-12-18 17:58:35,124 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 88 transitions. [2018-12-18 17:58:35,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-12-18 17:58:35,124 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:58:35,125 INFO L402 BasicCegarLoop]: trace histogram [43, 42, 1, 1] [2018-12-18 17:58:35,125 INFO L423 AbstractCegarLoop]: === Iteration 43 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:58:35,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:58:35,125 INFO L82 PathProgramCache]: Analyzing trace with hash -335716044, now seen corresponding path program 42 times [2018-12-18 17:58:35,125 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:58:35,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:58:35,126 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:58:35,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:58:35,126 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:58:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:58:35,504 WARN L181 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-12-18 17:58:37,731 INFO L273 TraceCheckUtils]: 0: Hoare triple {23916#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {23918#(and (or (<= 0 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,732 INFO L273 TraceCheckUtils]: 1: Hoare triple {23918#(and (or (<= 0 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23919#(and (or (<= main_n 42) (<= main_i 4)) (or (<= 4 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,733 INFO L273 TraceCheckUtils]: 2: Hoare triple {23919#(and (or (<= main_n 42) (<= main_i 4)) (or (<= 4 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23919#(and (or (<= main_n 42) (<= main_i 4)) (or (<= 4 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,734 INFO L273 TraceCheckUtils]: 3: Hoare triple {23919#(and (or (<= main_n 42) (<= main_i 4)) (or (<= 4 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23920#(and (or (<= 8 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,735 INFO L273 TraceCheckUtils]: 4: Hoare triple {23920#(and (or (<= 8 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23920#(and (or (<= 8 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,736 INFO L273 TraceCheckUtils]: 5: Hoare triple {23920#(and (or (<= 8 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 8)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23921#(and (or (<= 12 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,736 INFO L273 TraceCheckUtils]: 6: Hoare triple {23921#(and (or (<= 12 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23921#(and (or (<= 12 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,738 INFO L273 TraceCheckUtils]: 7: Hoare triple {23921#(and (or (<= 12 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 12)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23922#(and (or (<= main_n 42) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 42 main_n)))} is VALID [2018-12-18 17:58:37,738 INFO L273 TraceCheckUtils]: 8: Hoare triple {23922#(and (or (<= main_n 42) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 42 main_n)))} assume i <= n * 4; {23922#(and (or (<= main_n 42) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 42 main_n)))} is VALID [2018-12-18 17:58:37,739 INFO L273 TraceCheckUtils]: 9: Hoare triple {23922#(and (or (<= main_n 42) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))) (or (<= 16 main_i) (< 42 main_n)))} assume a[i] != 23;i := i + 4; {23923#(and (or (<= main_n 42) (<= main_i 20)) (or (<= 20 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,740 INFO L273 TraceCheckUtils]: 10: Hoare triple {23923#(and (or (<= main_n 42) (<= main_i 20)) (or (<= 20 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23923#(and (or (<= main_n 42) (<= main_i 20)) (or (<= 20 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,741 INFO L273 TraceCheckUtils]: 11: Hoare triple {23923#(and (or (<= main_n 42) (<= main_i 20)) (or (<= 20 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23924#(and (or (<= 24 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,742 INFO L273 TraceCheckUtils]: 12: Hoare triple {23924#(and (or (<= 24 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23924#(and (or (<= 24 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,743 INFO L273 TraceCheckUtils]: 13: Hoare triple {23924#(and (or (<= 24 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23925#(and (or (<= main_n 42) (<= main_i 28)) (or (<= 28 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,744 INFO L273 TraceCheckUtils]: 14: Hoare triple {23925#(and (or (<= main_n 42) (<= main_i 28)) (or (<= 28 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23925#(and (or (<= main_n 42) (<= main_i 28)) (or (<= 28 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,745 INFO L273 TraceCheckUtils]: 15: Hoare triple {23925#(and (or (<= main_n 42) (<= main_i 28)) (or (<= 28 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23926#(and (or (<= main_i 32) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 42 main_n)))} is VALID [2018-12-18 17:58:37,746 INFO L273 TraceCheckUtils]: 16: Hoare triple {23926#(and (or (<= main_i 32) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 42 main_n)))} assume i <= n * 4; {23926#(and (or (<= main_i 32) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 42 main_n)))} is VALID [2018-12-18 17:58:37,747 INFO L273 TraceCheckUtils]: 17: Hoare triple {23926#(and (or (<= main_i 32) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))) (or (<= 32 main_i) (< 42 main_n)))} assume a[i] != 23;i := i + 4; {23927#(and (or (< 42 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,748 INFO L273 TraceCheckUtils]: 18: Hoare triple {23927#(and (or (< 42 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23927#(and (or (< 42 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,749 INFO L273 TraceCheckUtils]: 19: Hoare triple {23927#(and (or (< 42 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23928#(and (or (<= 40 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,750 INFO L273 TraceCheckUtils]: 20: Hoare triple {23928#(and (or (<= 40 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23928#(and (or (<= 40 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,751 INFO L273 TraceCheckUtils]: 21: Hoare triple {23928#(and (or (<= 40 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23929#(and (or (<= 44 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,752 INFO L273 TraceCheckUtils]: 22: Hoare triple {23929#(and (or (<= 44 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23929#(and (or (<= 44 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,753 INFO L273 TraceCheckUtils]: 23: Hoare triple {23929#(and (or (<= 44 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23930#(and (or (<= main_n 42) (<= main_i 48)) (or (<= 48 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,753 INFO L273 TraceCheckUtils]: 24: Hoare triple {23930#(and (or (<= main_n 42) (<= main_i 48)) (or (<= 48 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23930#(and (or (<= main_n 42) (<= main_i 48)) (or (<= 48 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,755 INFO L273 TraceCheckUtils]: 25: Hoare triple {23930#(and (or (<= main_n 42) (<= main_i 48)) (or (<= 48 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23931#(and (or (<= main_n 42) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (<= 52 main_i) (< 42 main_n)))} is VALID [2018-12-18 17:58:37,755 INFO L273 TraceCheckUtils]: 26: Hoare triple {23931#(and (or (<= main_n 42) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (<= 52 main_i) (< 42 main_n)))} assume i <= n * 4; {23931#(and (or (<= main_n 42) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (<= 52 main_i) (< 42 main_n)))} is VALID [2018-12-18 17:58:37,756 INFO L273 TraceCheckUtils]: 27: Hoare triple {23931#(and (or (<= main_n 42) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (<= 52 main_i) (< 42 main_n)))} assume a[i] != 23;i := i + 4; {23932#(and (or (<= main_n 42) (<= main_i 56)) (or (<= 56 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,757 INFO L273 TraceCheckUtils]: 28: Hoare triple {23932#(and (or (<= main_n 42) (<= main_i 56)) (or (<= 56 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23932#(and (or (<= main_n 42) (<= main_i 56)) (or (<= 56 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,758 INFO L273 TraceCheckUtils]: 29: Hoare triple {23932#(and (or (<= main_n 42) (<= main_i 56)) (or (<= 56 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23933#(and (or (<= main_n 42) (<= main_i 60)) (or (<= 60 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,759 INFO L273 TraceCheckUtils]: 30: Hoare triple {23933#(and (or (<= main_n 42) (<= main_i 60)) (or (<= 60 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23933#(and (or (<= main_n 42) (<= main_i 60)) (or (<= 60 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,760 INFO L273 TraceCheckUtils]: 31: Hoare triple {23933#(and (or (<= main_n 42) (<= main_i 60)) (or (<= 60 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23934#(and (or (<= main_n 42) (<= main_i 64)) (or (<= 64 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,761 INFO L273 TraceCheckUtils]: 32: Hoare triple {23934#(and (or (<= main_n 42) (<= main_i 64)) (or (<= 64 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23934#(and (or (<= main_n 42) (<= main_i 64)) (or (<= 64 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,762 INFO L273 TraceCheckUtils]: 33: Hoare triple {23934#(and (or (<= main_n 42) (<= main_i 64)) (or (<= 64 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23935#(and (or (<= main_n 42) (<= main_i 68)) (or (<= 68 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,763 INFO L273 TraceCheckUtils]: 34: Hoare triple {23935#(and (or (<= main_n 42) (<= main_i 68)) (or (<= 68 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23935#(and (or (<= main_n 42) (<= main_i 68)) (or (<= 68 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,764 INFO L273 TraceCheckUtils]: 35: Hoare triple {23935#(and (or (<= main_n 42) (<= main_i 68)) (or (<= 68 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23936#(and (or (<= main_n 42) (<= main_i 72)) (or (<= 72 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,765 INFO L273 TraceCheckUtils]: 36: Hoare triple {23936#(and (or (<= main_n 42) (<= main_i 72)) (or (<= 72 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23936#(and (or (<= main_n 42) (<= main_i 72)) (or (<= 72 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,766 INFO L273 TraceCheckUtils]: 37: Hoare triple {23936#(and (or (<= main_n 42) (<= main_i 72)) (or (<= 72 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23937#(and (or (<= main_i 76) (<= main_n 42)) (or (<= 76 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,767 INFO L273 TraceCheckUtils]: 38: Hoare triple {23937#(and (or (<= main_i 76) (<= main_n 42)) (or (<= 76 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23937#(and (or (<= main_i 76) (<= main_n 42)) (or (<= 76 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,768 INFO L273 TraceCheckUtils]: 39: Hoare triple {23937#(and (or (<= main_i 76) (<= main_n 42)) (or (<= 76 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23938#(and (or (<= 80 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 42) (<= main_i 80)))} is VALID [2018-12-18 17:58:37,769 INFO L273 TraceCheckUtils]: 40: Hoare triple {23938#(and (or (<= 80 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 42) (<= main_i 80)))} assume i <= n * 4; {23938#(and (or (<= 80 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 42) (<= main_i 80)))} is VALID [2018-12-18 17:58:37,770 INFO L273 TraceCheckUtils]: 41: Hoare triple {23938#(and (or (<= 80 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 42) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {23939#(and (or (< 42 main_n) (<= 84 main_i)) (or (<= main_n 42) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,771 INFO L273 TraceCheckUtils]: 42: Hoare triple {23939#(and (or (< 42 main_n) (<= 84 main_i)) (or (<= main_n 42) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23939#(and (or (< 42 main_n) (<= 84 main_i)) (or (<= main_n 42) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,772 INFO L273 TraceCheckUtils]: 43: Hoare triple {23939#(and (or (< 42 main_n) (<= 84 main_i)) (or (<= main_n 42) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23940#(and (or (<= main_i 88) (<= main_n 42)) (or (<= 88 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,772 INFO L273 TraceCheckUtils]: 44: Hoare triple {23940#(and (or (<= main_i 88) (<= main_n 42)) (or (<= 88 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23940#(and (or (<= main_i 88) (<= main_n 42)) (or (<= 88 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,774 INFO L273 TraceCheckUtils]: 45: Hoare triple {23940#(and (or (<= main_i 88) (<= main_n 42)) (or (<= 88 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23941#(and (or (<= 92 main_i) (< 42 main_n)) (or (<= main_i 92) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,774 INFO L273 TraceCheckUtils]: 46: Hoare triple {23941#(and (or (<= 92 main_i) (< 42 main_n)) (or (<= main_i 92) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23941#(and (or (<= 92 main_i) (< 42 main_n)) (or (<= main_i 92) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,776 INFO L273 TraceCheckUtils]: 47: Hoare triple {23941#(and (or (<= 92 main_i) (< 42 main_n)) (or (<= main_i 92) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23942#(and (or (<= 96 main_i) (< 42 main_n)) (or (<= main_i 96) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,776 INFO L273 TraceCheckUtils]: 48: Hoare triple {23942#(and (or (<= 96 main_i) (< 42 main_n)) (or (<= main_i 96) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23942#(and (or (<= 96 main_i) (< 42 main_n)) (or (<= main_i 96) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,777 INFO L273 TraceCheckUtils]: 49: Hoare triple {23942#(and (or (<= 96 main_i) (< 42 main_n)) (or (<= main_i 96) (<= main_n 42)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23943#(and (or (<= main_n 42) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))) (or (<= 100 main_i) (< 42 main_n)))} is VALID [2018-12-18 17:58:37,778 INFO L273 TraceCheckUtils]: 50: Hoare triple {23943#(and (or (<= main_n 42) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))) (or (<= 100 main_i) (< 42 main_n)))} assume i <= n * 4; {23943#(and (or (<= main_n 42) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))) (or (<= 100 main_i) (< 42 main_n)))} is VALID [2018-12-18 17:58:37,779 INFO L273 TraceCheckUtils]: 51: Hoare triple {23943#(and (or (<= main_n 42) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))) (or (<= 100 main_i) (< 42 main_n)))} assume a[i] != 23;i := i + 4; {23944#(and (or (<= main_i 104) (<= main_n 42)) (or (<= 104 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,780 INFO L273 TraceCheckUtils]: 52: Hoare triple {23944#(and (or (<= main_i 104) (<= main_n 42)) (or (<= 104 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23944#(and (or (<= main_i 104) (<= main_n 42)) (or (<= 104 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,781 INFO L273 TraceCheckUtils]: 53: Hoare triple {23944#(and (or (<= main_i 104) (<= main_n 42)) (or (<= 104 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23945#(and (or (<= main_n 42) (<= main_i 108)) (or (<= 108 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,782 INFO L273 TraceCheckUtils]: 54: Hoare triple {23945#(and (or (<= main_n 42) (<= main_i 108)) (or (<= 108 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23945#(and (or (<= main_n 42) (<= main_i 108)) (or (<= 108 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,783 INFO L273 TraceCheckUtils]: 55: Hoare triple {23945#(and (or (<= main_n 42) (<= main_i 108)) (or (<= 108 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23946#(and (or (< 42 main_n) (<= 112 main_i)) (or (<= main_n 42) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,784 INFO L273 TraceCheckUtils]: 56: Hoare triple {23946#(and (or (< 42 main_n) (<= 112 main_i)) (or (<= main_n 42) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23946#(and (or (< 42 main_n) (<= 112 main_i)) (or (<= main_n 42) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,785 INFO L273 TraceCheckUtils]: 57: Hoare triple {23946#(and (or (< 42 main_n) (<= 112 main_i)) (or (<= main_n 42) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23947#(and (or (<= 116 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,786 INFO L273 TraceCheckUtils]: 58: Hoare triple {23947#(and (or (<= 116 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23947#(and (or (<= 116 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,787 INFO L273 TraceCheckUtils]: 59: Hoare triple {23947#(and (or (<= 116 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23948#(and (or (<= 120 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,788 INFO L273 TraceCheckUtils]: 60: Hoare triple {23948#(and (or (<= 120 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23948#(and (or (<= 120 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,789 INFO L273 TraceCheckUtils]: 61: Hoare triple {23948#(and (or (<= 120 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23949#(and (or (<= main_n 42) (<= main_i 124)) (or (<= 124 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,790 INFO L273 TraceCheckUtils]: 62: Hoare triple {23949#(and (or (<= main_n 42) (<= main_i 124)) (or (<= 124 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23949#(and (or (<= main_n 42) (<= main_i 124)) (or (<= 124 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,791 INFO L273 TraceCheckUtils]: 63: Hoare triple {23949#(and (or (<= main_n 42) (<= main_i 124)) (or (<= 124 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23950#(and (or (<= main_n 42) (<= main_i 128)) (or (<= 128 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,791 INFO L273 TraceCheckUtils]: 64: Hoare triple {23950#(and (or (<= main_n 42) (<= main_i 128)) (or (<= 128 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23950#(and (or (<= main_n 42) (<= main_i 128)) (or (<= 128 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,793 INFO L273 TraceCheckUtils]: 65: Hoare triple {23950#(and (or (<= main_n 42) (<= main_i 128)) (or (<= 128 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23951#(and (or (<= 132 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,793 INFO L273 TraceCheckUtils]: 66: Hoare triple {23951#(and (or (<= 132 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23951#(and (or (<= 132 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,794 INFO L273 TraceCheckUtils]: 67: Hoare triple {23951#(and (or (<= 132 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23952#(and (or (<= main_i 136) (<= main_n 42)) (or (<= 136 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,795 INFO L273 TraceCheckUtils]: 68: Hoare triple {23952#(and (or (<= main_i 136) (<= main_n 42)) (or (<= 136 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23952#(and (or (<= main_i 136) (<= main_n 42)) (or (<= 136 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,796 INFO L273 TraceCheckUtils]: 69: Hoare triple {23952#(and (or (<= main_i 136) (<= main_n 42)) (or (<= 136 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23953#(and (or (< 42 main_n) (<= 140 main_i)) (or (<= main_n 42) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,797 INFO L273 TraceCheckUtils]: 70: Hoare triple {23953#(and (or (< 42 main_n) (<= 140 main_i)) (or (<= main_n 42) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23953#(and (or (< 42 main_n) (<= 140 main_i)) (or (<= main_n 42) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,798 INFO L273 TraceCheckUtils]: 71: Hoare triple {23953#(and (or (< 42 main_n) (<= 140 main_i)) (or (<= main_n 42) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23954#(and (or (<= 144 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,799 INFO L273 TraceCheckUtils]: 72: Hoare triple {23954#(and (or (<= 144 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23954#(and (or (<= 144 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,800 INFO L273 TraceCheckUtils]: 73: Hoare triple {23954#(and (or (<= 144 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23955#(and (or (<= 148 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,801 INFO L273 TraceCheckUtils]: 74: Hoare triple {23955#(and (or (<= 148 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23955#(and (or (<= 148 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,802 INFO L273 TraceCheckUtils]: 75: Hoare triple {23955#(and (or (<= 148 main_i) (< 42 main_n)) (or (<= main_n 42) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23956#(and (or (<= main_n 42) (<= main_i 152)) (or (<= 152 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,803 INFO L273 TraceCheckUtils]: 76: Hoare triple {23956#(and (or (<= main_n 42) (<= main_i 152)) (or (<= 152 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23956#(and (or (<= main_n 42) (<= main_i 152)) (or (<= 152 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,804 INFO L273 TraceCheckUtils]: 77: Hoare triple {23956#(and (or (<= main_n 42) (<= main_i 152)) (or (<= 152 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23957#(and (or (<= main_n 42) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 42 main_n)))} is VALID [2018-12-18 17:58:37,805 INFO L273 TraceCheckUtils]: 78: Hoare triple {23957#(and (or (<= main_n 42) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 42 main_n)))} assume i <= n * 4; {23957#(and (or (<= main_n 42) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 42 main_n)))} is VALID [2018-12-18 17:58:37,806 INFO L273 TraceCheckUtils]: 79: Hoare triple {23957#(and (or (<= main_n 42) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 42 main_n)))} assume a[i] != 23;i := i + 4; {23958#(and (or (<= main_n 42) (<= main_i 160)) (or (<= 160 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,807 INFO L273 TraceCheckUtils]: 80: Hoare triple {23958#(and (or (<= main_n 42) (<= main_i 160)) (or (<= 160 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23958#(and (or (<= main_n 42) (<= main_i 160)) (or (<= 160 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,808 INFO L273 TraceCheckUtils]: 81: Hoare triple {23958#(and (or (<= main_n 42) (<= main_i 160)) (or (<= 160 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23959#(and (or (<= main_n 42) (<= main_i 164)) (or (<= 164 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,808 INFO L273 TraceCheckUtils]: 82: Hoare triple {23959#(and (or (<= main_n 42) (<= main_i 164)) (or (<= 164 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23959#(and (or (<= main_n 42) (<= main_i 164)) (or (<= 164 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:37,810 INFO L273 TraceCheckUtils]: 83: Hoare triple {23959#(and (or (<= main_n 42) (<= main_i 164)) (or (<= 164 main_i) (< 42 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23960#(and (or (= (* 4 main_n) main_i) (and (or (<= main_n 42) (<= main_i 168)) (or (<= (* 4 main_n) main_i) (< 42 main_n)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2018-12-18 17:58:37,811 INFO L273 TraceCheckUtils]: 84: Hoare triple {23960#(and (or (= (* 4 main_n) main_i) (and (or (<= main_n 42) (<= main_i 168)) (or (<= (* 4 main_n) main_i) (< 42 main_n)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {23961#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 168) (< 42 main_n))))} is VALID [2018-12-18 17:58:37,812 INFO L273 TraceCheckUtils]: 85: Hoare triple {23961#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 168) (< 42 main_n))))} assume a[i] != 23;i := i + 4; {23962#(and (<= main_i 172) (< 42 main_n))} is VALID [2018-12-18 17:58:37,813 INFO L273 TraceCheckUtils]: 86: Hoare triple {23962#(and (<= main_i 172) (< 42 main_n))} assume !(i <= n * 4); {23917#false} is VALID [2018-12-18 17:58:37,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 0 proven. 1806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:58:37,843 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:58:37,844 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:58:37,844 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:58:37,844 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:58:37,844 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:58:37,844 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:58:37,852 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-18 17:58:37,852 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-18 17:58:37,879 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-18 17:58:37,879 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:58:37,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:58:37,893 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:58:37,900 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:58:37,903 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:58:37,911 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:58:37,911 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:58:37,913 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:58:37,913 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_46]. (and (= (store v_main_a_46 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:58:37,913 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:58:40,928 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:58:40,931 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:58:40,937 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:58:40,937 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:58:40,940 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:58:40,940 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 168) 23)) (<= 168 .cse0) (<= main_i 172) (= 23 (select main_a .cse0)))) [2018-12-18 17:58:40,940 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 168 .cse0) (not (= 168 .cse0)) (<= main_i 172))) [2018-12-18 17:58:40,997 INFO L273 TraceCheckUtils]: 0: Hoare triple {23916#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {23966#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:40,998 INFO L273 TraceCheckUtils]: 1: Hoare triple {23966#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23970#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:58:40,998 INFO L273 TraceCheckUtils]: 2: Hoare triple {23970#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {23970#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:58:40,999 INFO L273 TraceCheckUtils]: 3: Hoare triple {23970#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {23977#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:40,999 INFO L273 TraceCheckUtils]: 4: Hoare triple {23977#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23977#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,000 INFO L273 TraceCheckUtils]: 5: Hoare triple {23977#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23984#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:58:41,001 INFO L273 TraceCheckUtils]: 6: Hoare triple {23984#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {23984#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:58:41,023 INFO L273 TraceCheckUtils]: 7: Hoare triple {23984#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {23991#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,036 INFO L273 TraceCheckUtils]: 8: Hoare triple {23991#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23991#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,045 INFO L273 TraceCheckUtils]: 9: Hoare triple {23991#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23998#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,047 INFO L273 TraceCheckUtils]: 10: Hoare triple {23998#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {23998#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,047 INFO L273 TraceCheckUtils]: 11: Hoare triple {23998#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24005#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,048 INFO L273 TraceCheckUtils]: 12: Hoare triple {24005#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24005#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,048 INFO L273 TraceCheckUtils]: 13: Hoare triple {24005#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24012#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,049 INFO L273 TraceCheckUtils]: 14: Hoare triple {24012#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24012#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,049 INFO L273 TraceCheckUtils]: 15: Hoare triple {24012#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24019#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,050 INFO L273 TraceCheckUtils]: 16: Hoare triple {24019#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24019#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,050 INFO L273 TraceCheckUtils]: 17: Hoare triple {24019#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24026#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,050 INFO L273 TraceCheckUtils]: 18: Hoare triple {24026#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24026#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,051 INFO L273 TraceCheckUtils]: 19: Hoare triple {24026#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24033#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,051 INFO L273 TraceCheckUtils]: 20: Hoare triple {24033#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24033#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,052 INFO L273 TraceCheckUtils]: 21: Hoare triple {24033#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24040#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,052 INFO L273 TraceCheckUtils]: 22: Hoare triple {24040#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24040#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,053 INFO L273 TraceCheckUtils]: 23: Hoare triple {24040#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24047#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,054 INFO L273 TraceCheckUtils]: 24: Hoare triple {24047#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24047#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,054 INFO L273 TraceCheckUtils]: 25: Hoare triple {24047#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24054#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,055 INFO L273 TraceCheckUtils]: 26: Hoare triple {24054#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24054#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,056 INFO L273 TraceCheckUtils]: 27: Hoare triple {24054#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24061#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,056 INFO L273 TraceCheckUtils]: 28: Hoare triple {24061#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24061#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,057 INFO L273 TraceCheckUtils]: 29: Hoare triple {24061#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24068#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,058 INFO L273 TraceCheckUtils]: 30: Hoare triple {24068#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24068#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,058 INFO L273 TraceCheckUtils]: 31: Hoare triple {24068#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24075#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,059 INFO L273 TraceCheckUtils]: 32: Hoare triple {24075#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24075#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,060 INFO L273 TraceCheckUtils]: 33: Hoare triple {24075#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24082#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,060 INFO L273 TraceCheckUtils]: 34: Hoare triple {24082#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24082#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,061 INFO L273 TraceCheckUtils]: 35: Hoare triple {24082#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24089#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,062 INFO L273 TraceCheckUtils]: 36: Hoare triple {24089#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24089#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,063 INFO L273 TraceCheckUtils]: 37: Hoare triple {24089#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24096#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,063 INFO L273 TraceCheckUtils]: 38: Hoare triple {24096#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24096#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,064 INFO L273 TraceCheckUtils]: 39: Hoare triple {24096#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24103#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:58:41,065 INFO L273 TraceCheckUtils]: 40: Hoare triple {24103#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {24103#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:58:41,065 INFO L273 TraceCheckUtils]: 41: Hoare triple {24103#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {24110#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,066 INFO L273 TraceCheckUtils]: 42: Hoare triple {24110#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24110#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,067 INFO L273 TraceCheckUtils]: 43: Hoare triple {24110#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24117#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,068 INFO L273 TraceCheckUtils]: 44: Hoare triple {24117#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24117#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,068 INFO L273 TraceCheckUtils]: 45: Hoare triple {24117#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24124#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,069 INFO L273 TraceCheckUtils]: 46: Hoare triple {24124#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24124#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,070 INFO L273 TraceCheckUtils]: 47: Hoare triple {24124#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24131#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,070 INFO L273 TraceCheckUtils]: 48: Hoare triple {24131#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24131#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,071 INFO L273 TraceCheckUtils]: 49: Hoare triple {24131#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24138#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,072 INFO L273 TraceCheckUtils]: 50: Hoare triple {24138#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24138#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,073 INFO L273 TraceCheckUtils]: 51: Hoare triple {24138#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24145#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,073 INFO L273 TraceCheckUtils]: 52: Hoare triple {24145#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24145#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,074 INFO L273 TraceCheckUtils]: 53: Hoare triple {24145#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24152#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,075 INFO L273 TraceCheckUtils]: 54: Hoare triple {24152#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24152#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,076 INFO L273 TraceCheckUtils]: 55: Hoare triple {24152#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24159#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,076 INFO L273 TraceCheckUtils]: 56: Hoare triple {24159#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24159#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,077 INFO L273 TraceCheckUtils]: 57: Hoare triple {24159#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24166#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,078 INFO L273 TraceCheckUtils]: 58: Hoare triple {24166#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24166#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,078 INFO L273 TraceCheckUtils]: 59: Hoare triple {24166#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24173#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,079 INFO L273 TraceCheckUtils]: 60: Hoare triple {24173#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24173#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,080 INFO L273 TraceCheckUtils]: 61: Hoare triple {24173#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24180#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,080 INFO L273 TraceCheckUtils]: 62: Hoare triple {24180#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24180#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,081 INFO L273 TraceCheckUtils]: 63: Hoare triple {24180#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24187#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,082 INFO L273 TraceCheckUtils]: 64: Hoare triple {24187#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24187#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,083 INFO L273 TraceCheckUtils]: 65: Hoare triple {24187#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24194#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,083 INFO L273 TraceCheckUtils]: 66: Hoare triple {24194#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24194#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,084 INFO L273 TraceCheckUtils]: 67: Hoare triple {24194#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24201#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,085 INFO L273 TraceCheckUtils]: 68: Hoare triple {24201#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24201#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,085 INFO L273 TraceCheckUtils]: 69: Hoare triple {24201#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24208#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 17:58:41,086 INFO L273 TraceCheckUtils]: 70: Hoare triple {24208#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {24208#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 17:58:41,087 INFO L273 TraceCheckUtils]: 71: Hoare triple {24208#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {24215#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,088 INFO L273 TraceCheckUtils]: 72: Hoare triple {24215#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24215#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,088 INFO L273 TraceCheckUtils]: 73: Hoare triple {24215#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24222#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,089 INFO L273 TraceCheckUtils]: 74: Hoare triple {24222#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24222#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,090 INFO L273 TraceCheckUtils]: 75: Hoare triple {24222#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24229#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,091 INFO L273 TraceCheckUtils]: 76: Hoare triple {24229#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24229#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,091 INFO L273 TraceCheckUtils]: 77: Hoare triple {24229#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24236#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,092 INFO L273 TraceCheckUtils]: 78: Hoare triple {24236#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24236#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,093 INFO L273 TraceCheckUtils]: 79: Hoare triple {24236#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24243#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,093 INFO L273 TraceCheckUtils]: 80: Hoare triple {24243#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24243#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,094 INFO L273 TraceCheckUtils]: 81: Hoare triple {24243#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {24250#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 17:58:41,095 INFO L273 TraceCheckUtils]: 82: Hoare triple {24250#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {24250#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 17:58:41,095 INFO L273 TraceCheckUtils]: 83: Hoare triple {24250#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {24257#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,096 INFO L273 TraceCheckUtils]: 84: Hoare triple {24257#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {24261#(and (= main_i 168) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:58:41,097 INFO L273 TraceCheckUtils]: 85: Hoare triple {24261#(and (= main_i 168) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {23962#(and (<= main_i 172) (< 42 main_n))} is VALID [2018-12-18 17:58:41,098 INFO L273 TraceCheckUtils]: 86: Hoare triple {23962#(and (<= main_i 172) (< 42 main_n))} assume !(i <= n * 4); {23917#false} is VALID [2018-12-18 17:58:41,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 0 proven. 1806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:58:41,115 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:58:46,494 INFO L273 TraceCheckUtils]: 86: Hoare triple {24268#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {23917#false} is VALID [2018-12-18 17:58:46,495 INFO L273 TraceCheckUtils]: 85: Hoare triple {24272#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {24268#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:58:46,496 INFO L273 TraceCheckUtils]: 84: Hoare triple {24276#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {24272#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:58:46,497 INFO L273 TraceCheckUtils]: 83: Hoare triple {24280#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {24276#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:58:46,497 INFO L273 TraceCheckUtils]: 82: Hoare triple {24280#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {24280#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:58:46,498 INFO L273 TraceCheckUtils]: 81: Hoare triple {24287#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {24280#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:58:46,499 INFO L273 TraceCheckUtils]: 80: Hoare triple {24287#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {24287#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:58:46,500 INFO L273 TraceCheckUtils]: 79: Hoare triple {24294#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {24287#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:58:46,500 INFO L273 TraceCheckUtils]: 78: Hoare triple {24294#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {24294#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:58:46,502 INFO L273 TraceCheckUtils]: 77: Hoare triple {24301#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {24294#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:58:46,502 INFO L273 TraceCheckUtils]: 76: Hoare triple {24301#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {24301#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:58:46,503 INFO L273 TraceCheckUtils]: 75: Hoare triple {24308#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24301#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:58:46,504 INFO L273 TraceCheckUtils]: 74: Hoare triple {24308#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {24308#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,505 INFO L273 TraceCheckUtils]: 73: Hoare triple {24315#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {24308#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,505 INFO L273 TraceCheckUtils]: 72: Hoare triple {24315#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {24315#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:58:46,507 INFO L273 TraceCheckUtils]: 71: Hoare triple {24322#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24315#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:58:46,507 INFO L273 TraceCheckUtils]: 70: Hoare triple {24322#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {24322#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,508 INFO L273 TraceCheckUtils]: 69: Hoare triple {24329#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24322#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,509 INFO L273 TraceCheckUtils]: 68: Hoare triple {24329#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {24329#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,510 INFO L273 TraceCheckUtils]: 67: Hoare triple {24336#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24329#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,510 INFO L273 TraceCheckUtils]: 66: Hoare triple {24336#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {24336#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,512 INFO L273 TraceCheckUtils]: 65: Hoare triple {24343#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {24336#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,512 INFO L273 TraceCheckUtils]: 64: Hoare triple {24343#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {24343#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:58:46,513 INFO L273 TraceCheckUtils]: 63: Hoare triple {24350#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24343#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:58:46,514 INFO L273 TraceCheckUtils]: 62: Hoare triple {24350#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {24350#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,515 INFO L273 TraceCheckUtils]: 61: Hoare triple {24357#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24350#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,516 INFO L273 TraceCheckUtils]: 60: Hoare triple {24357#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {24357#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,517 INFO L273 TraceCheckUtils]: 59: Hoare triple {24364#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {24357#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,517 INFO L273 TraceCheckUtils]: 58: Hoare triple {24364#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {24364#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:58:46,518 INFO L273 TraceCheckUtils]: 57: Hoare triple {24371#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24364#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:58:46,519 INFO L273 TraceCheckUtils]: 56: Hoare triple {24371#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {24371#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,520 INFO L273 TraceCheckUtils]: 55: Hoare triple {24378#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {24371#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,521 INFO L273 TraceCheckUtils]: 54: Hoare triple {24378#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {24378#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:58:46,522 INFO L273 TraceCheckUtils]: 53: Hoare triple {24385#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {24378#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:58:46,522 INFO L273 TraceCheckUtils]: 52: Hoare triple {24385#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {24385#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:58:46,523 INFO L273 TraceCheckUtils]: 51: Hoare triple {24392#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {24385#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:58:46,524 INFO L273 TraceCheckUtils]: 50: Hoare triple {24392#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {24392#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:58:46,525 INFO L273 TraceCheckUtils]: 49: Hoare triple {24399#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {24392#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:58:46,526 INFO L273 TraceCheckUtils]: 48: Hoare triple {24399#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {24399#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:58:46,527 INFO L273 TraceCheckUtils]: 47: Hoare triple {24406#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {24399#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:58:46,527 INFO L273 TraceCheckUtils]: 46: Hoare triple {24406#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {24406#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:58:46,528 INFO L273 TraceCheckUtils]: 45: Hoare triple {24413#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {24406#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:58:46,529 INFO L273 TraceCheckUtils]: 44: Hoare triple {24413#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {24413#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:58:46,530 INFO L273 TraceCheckUtils]: 43: Hoare triple {24420#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24413#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:58:46,531 INFO L273 TraceCheckUtils]: 42: Hoare triple {24420#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {24420#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,532 INFO L273 TraceCheckUtils]: 41: Hoare triple {24427#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24420#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,532 INFO L273 TraceCheckUtils]: 40: Hoare triple {24427#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {24427#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,533 INFO L273 TraceCheckUtils]: 39: Hoare triple {24434#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24427#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,534 INFO L273 TraceCheckUtils]: 38: Hoare triple {24434#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {24434#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,535 INFO L273 TraceCheckUtils]: 37: Hoare triple {24441#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {24434#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,535 INFO L273 TraceCheckUtils]: 36: Hoare triple {24441#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {24441#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:58:46,537 INFO L273 TraceCheckUtils]: 35: Hoare triple {24448#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24441#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:58:46,537 INFO L273 TraceCheckUtils]: 34: Hoare triple {24448#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {24448#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,538 INFO L273 TraceCheckUtils]: 33: Hoare triple {24455#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {24448#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,539 INFO L273 TraceCheckUtils]: 32: Hoare triple {24455#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {24455#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:58:46,540 INFO L273 TraceCheckUtils]: 31: Hoare triple {24462#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {24455#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:58:46,540 INFO L273 TraceCheckUtils]: 30: Hoare triple {24462#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {24462#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:58:46,541 INFO L273 TraceCheckUtils]: 29: Hoare triple {24469#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {24462#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:58:46,542 INFO L273 TraceCheckUtils]: 28: Hoare triple {24469#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {24469#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:58:46,543 INFO L273 TraceCheckUtils]: 27: Hoare triple {24476#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24469#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:58:46,544 INFO L273 TraceCheckUtils]: 26: Hoare triple {24476#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {24476#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,545 INFO L273 TraceCheckUtils]: 25: Hoare triple {24483#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24476#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,545 INFO L273 TraceCheckUtils]: 24: Hoare triple {24483#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {24483#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,546 INFO L273 TraceCheckUtils]: 23: Hoare triple {24490#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {24483#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,547 INFO L273 TraceCheckUtils]: 22: Hoare triple {24490#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {24490#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:58:46,548 INFO L273 TraceCheckUtils]: 21: Hoare triple {24497#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24490#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:58:46,548 INFO L273 TraceCheckUtils]: 20: Hoare triple {24497#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {24497#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,549 INFO L273 TraceCheckUtils]: 19: Hoare triple {24504#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {24497#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,550 INFO L273 TraceCheckUtils]: 18: Hoare triple {24504#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {24504#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 17:58:46,551 INFO L273 TraceCheckUtils]: 17: Hoare triple {24511#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {24504#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 17:58:46,551 INFO L273 TraceCheckUtils]: 16: Hoare triple {24511#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {24511#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 17:58:46,552 INFO L273 TraceCheckUtils]: 15: Hoare triple {24518#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {24511#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 17:58:46,553 INFO L273 TraceCheckUtils]: 14: Hoare triple {24518#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {24518#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 17:58:46,554 INFO L273 TraceCheckUtils]: 13: Hoare triple {24525#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {24518#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 17:58:46,554 INFO L273 TraceCheckUtils]: 12: Hoare triple {24525#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {24525#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 17:58:46,556 INFO L273 TraceCheckUtils]: 11: Hoare triple {24532#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {24525#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 17:58:46,556 INFO L273 TraceCheckUtils]: 10: Hoare triple {24532#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {24532#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 17:58:46,557 INFO L273 TraceCheckUtils]: 9: Hoare triple {24539#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {24532#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 17:58:46,558 INFO L273 TraceCheckUtils]: 8: Hoare triple {24539#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {24539#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 17:58:46,559 INFO L273 TraceCheckUtils]: 7: Hoare triple {24546#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {24539#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 17:58:46,559 INFO L273 TraceCheckUtils]: 6: Hoare triple {24546#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {24546#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 17:58:46,560 INFO L273 TraceCheckUtils]: 5: Hoare triple {24553#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {24546#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 17:58:46,561 INFO L273 TraceCheckUtils]: 4: Hoare triple {24553#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {24553#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 17:58:46,562 INFO L273 TraceCheckUtils]: 3: Hoare triple {24560#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {24553#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 17:58:46,562 INFO L273 TraceCheckUtils]: 2: Hoare triple {24560#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {24560#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 17:58:46,563 INFO L273 TraceCheckUtils]: 1: Hoare triple {24567#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {24560#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 17:58:46,564 INFO L273 TraceCheckUtils]: 0: Hoare triple {23916#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {24567#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2018-12-18 17:58:46,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 0 proven. 1806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:58:46,610 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:58:46,610 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45, 45] total 134 [2018-12-18 17:58:46,610 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:58:46,611 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 87 [2018-12-18 17:58:46,611 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:58:46,611 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 91 states. [2018-12-18 17:58:46,829 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 173 edges. 173 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:58:46,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 91 states [2018-12-18 17:58:46,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2018-12-18 17:58:46,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2258, Invalid=16102, Unknown=0, NotChecked=0, Total=18360 [2018-12-18 17:58:46,831 INFO L87 Difference]: Start difference. First operand 88 states and 88 transitions. Second operand 91 states. [2018-12-18 17:58:59,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:58:59,027 INFO L93 Difference]: Finished difference Result 92 states and 92 transitions. [2018-12-18 17:58:59,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-12-18 17:58:59,028 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 87 [2018-12-18 17:58:59,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:58:59,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-12-18 17:58:59,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 92 transitions. [2018-12-18 17:58:59,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-12-18 17:58:59,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 92 transitions. [2018-12-18 17:58:59,030 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 47 states and 92 transitions. [2018-12-18 17:58:59,134 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 92 edges. 92 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:58:59,135 INFO L225 Difference]: With dead ends: 92 [2018-12-18 17:58:59,135 INFO L226 Difference]: Without dead ends: 91 [2018-12-18 17:58:59,136 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4136 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=2258, Invalid=16102, Unknown=0, NotChecked=0, Total=18360 [2018-12-18 17:58:59,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-12-18 17:58:59,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2018-12-18 17:58:59,225 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:58:59,225 INFO L82 GeneralOperation]: Start isEquivalent. First operand 91 states. Second operand 90 states. [2018-12-18 17:58:59,225 INFO L74 IsIncluded]: Start isIncluded. First operand 91 states. Second operand 90 states. [2018-12-18 17:58:59,226 INFO L87 Difference]: Start difference. First operand 91 states. Second operand 90 states. [2018-12-18 17:58:59,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:58:59,227 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2018-12-18 17:58:59,228 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 91 transitions. [2018-12-18 17:58:59,228 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:58:59,228 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:58:59,228 INFO L74 IsIncluded]: Start isIncluded. First operand 90 states. Second operand 91 states. [2018-12-18 17:58:59,228 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 91 states. [2018-12-18 17:58:59,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:58:59,230 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2018-12-18 17:58:59,230 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 91 transitions. [2018-12-18 17:58:59,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:58:59,230 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:58:59,230 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:58:59,231 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:58:59,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-12-18 17:58:59,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2018-12-18 17:58:59,232 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 87 [2018-12-18 17:58:59,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:58:59,232 INFO L480 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2018-12-18 17:58:59,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has 91 states. [2018-12-18 17:58:59,232 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2018-12-18 17:58:59,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-18 17:58:59,232 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:58:59,233 INFO L402 BasicCegarLoop]: trace histogram [44, 43, 1, 1] [2018-12-18 17:58:59,233 INFO L423 AbstractCegarLoop]: === Iteration 44 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:58:59,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:58:59,233 INFO L82 PathProgramCache]: Analyzing trace with hash -500569994, now seen corresponding path program 43 times [2018-12-18 17:58:59,233 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:58:59,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:58:59,234 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:58:59,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:58:59,234 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:58:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:58:59,679 WARN L181 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-12-18 17:59:02,028 INFO L273 TraceCheckUtils]: 0: Hoare triple {25023#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {25025#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 0)))} is VALID [2018-12-18 17:59:02,029 INFO L273 TraceCheckUtils]: 1: Hoare triple {25025#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {25026#(and (or (<= main_n 43) (<= main_i 4)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2018-12-18 17:59:02,030 INFO L273 TraceCheckUtils]: 2: Hoare triple {25026#(and (or (<= main_n 43) (<= main_i 4)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {25026#(and (or (<= main_n 43) (<= main_i 4)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2018-12-18 17:59:02,031 INFO L273 TraceCheckUtils]: 3: Hoare triple {25026#(and (or (<= main_n 43) (<= main_i 4)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {25027#(and (or (< 43 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 8)))} is VALID [2018-12-18 17:59:02,032 INFO L273 TraceCheckUtils]: 4: Hoare triple {25027#(and (or (< 43 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 8)))} assume i <= n * 4; {25027#(and (or (< 43 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 8)))} is VALID [2018-12-18 17:59:02,033 INFO L273 TraceCheckUtils]: 5: Hoare triple {25027#(and (or (< 43 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 8)))} assume a[i] != 23;i := i + 4; {25028#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 12)))} is VALID [2018-12-18 17:59:02,034 INFO L273 TraceCheckUtils]: 6: Hoare triple {25028#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 12)))} assume i <= n * 4; {25028#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 12)))} is VALID [2018-12-18 17:59:02,035 INFO L273 TraceCheckUtils]: 7: Hoare triple {25028#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {25029#(and (or (<= main_n 43) (<= main_i 16)) (or (< 43 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:02,036 INFO L273 TraceCheckUtils]: 8: Hoare triple {25029#(and (or (<= main_n 43) (<= main_i 16)) (or (< 43 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25029#(and (or (<= main_n 43) (<= main_i 16)) (or (< 43 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:02,037 INFO L273 TraceCheckUtils]: 9: Hoare triple {25029#(and (or (<= main_n 43) (<= main_i 16)) (or (< 43 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25030#(and (or (<= main_n 43) (<= main_i 20)) (or (< 43 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:02,037 INFO L273 TraceCheckUtils]: 10: Hoare triple {25030#(and (or (<= main_n 43) (<= main_i 20)) (or (< 43 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25030#(and (or (<= main_n 43) (<= main_i 20)) (or (< 43 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:02,038 INFO L273 TraceCheckUtils]: 11: Hoare triple {25030#(and (or (<= main_n 43) (<= main_i 20)) (or (< 43 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25031#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 24)))} is VALID [2018-12-18 17:59:02,039 INFO L273 TraceCheckUtils]: 12: Hoare triple {25031#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 24)))} assume i <= n * 4; {25031#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 24)))} is VALID [2018-12-18 17:59:02,040 INFO L273 TraceCheckUtils]: 13: Hoare triple {25031#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {25032#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 28)))} is VALID [2018-12-18 17:59:02,041 INFO L273 TraceCheckUtils]: 14: Hoare triple {25032#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 28)))} assume i <= n * 4; {25032#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 28)))} is VALID [2018-12-18 17:59:02,042 INFO L273 TraceCheckUtils]: 15: Hoare triple {25032#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {25033#(and (or (< 43 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 43)))} is VALID [2018-12-18 17:59:02,043 INFO L273 TraceCheckUtils]: 16: Hoare triple {25033#(and (or (< 43 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 43)))} assume i <= n * 4; {25033#(and (or (< 43 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 43)))} is VALID [2018-12-18 17:59:02,044 INFO L273 TraceCheckUtils]: 17: Hoare triple {25033#(and (or (< 43 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 32) (<= main_n 43)))} assume a[i] != 23;i := i + 4; {25034#(and (or (<= main_n 43) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 43 main_n)))} is VALID [2018-12-18 17:59:02,044 INFO L273 TraceCheckUtils]: 18: Hoare triple {25034#(and (or (<= main_n 43) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 43 main_n)))} assume i <= n * 4; {25034#(and (or (<= main_n 43) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 43 main_n)))} is VALID [2018-12-18 17:59:02,045 INFO L273 TraceCheckUtils]: 19: Hoare triple {25034#(and (or (<= main_n 43) (<= main_i 36)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 43 main_n)))} assume a[i] != 23;i := i + 4; {25035#(and (or (< 43 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 40)))} is VALID [2018-12-18 17:59:02,046 INFO L273 TraceCheckUtils]: 20: Hoare triple {25035#(and (or (< 43 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 40)))} assume i <= n * 4; {25035#(and (or (< 43 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 40)))} is VALID [2018-12-18 17:59:02,047 INFO L273 TraceCheckUtils]: 21: Hoare triple {25035#(and (or (< 43 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 40)))} assume a[i] != 23;i := i + 4; {25036#(and (or (<= main_n 43) (<= main_i 44)) (or (< 43 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:02,048 INFO L273 TraceCheckUtils]: 22: Hoare triple {25036#(and (or (<= main_n 43) (<= main_i 44)) (or (< 43 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25036#(and (or (<= main_n 43) (<= main_i 44)) (or (< 43 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:02,049 INFO L273 TraceCheckUtils]: 23: Hoare triple {25036#(and (or (<= main_n 43) (<= main_i 44)) (or (< 43 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25037#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 48)))} is VALID [2018-12-18 17:59:02,050 INFO L273 TraceCheckUtils]: 24: Hoare triple {25037#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 48)))} assume i <= n * 4; {25037#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 48)))} is VALID [2018-12-18 17:59:02,051 INFO L273 TraceCheckUtils]: 25: Hoare triple {25037#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {25038#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 52)))} is VALID [2018-12-18 17:59:02,051 INFO L273 TraceCheckUtils]: 26: Hoare triple {25038#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 52)))} assume i <= n * 4; {25038#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 52)))} is VALID [2018-12-18 17:59:02,052 INFO L273 TraceCheckUtils]: 27: Hoare triple {25038#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 52)))} assume a[i] != 23;i := i + 4; {25039#(and (or (< 43 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 56)))} is VALID [2018-12-18 17:59:02,053 INFO L273 TraceCheckUtils]: 28: Hoare triple {25039#(and (or (< 43 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 56)))} assume i <= n * 4; {25039#(and (or (< 43 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 56)))} is VALID [2018-12-18 17:59:02,054 INFO L273 TraceCheckUtils]: 29: Hoare triple {25039#(and (or (< 43 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 56)))} assume a[i] != 23;i := i + 4; {25040#(and (or (< 43 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 60)))} is VALID [2018-12-18 17:59:02,055 INFO L273 TraceCheckUtils]: 30: Hoare triple {25040#(and (or (< 43 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 60)))} assume i <= n * 4; {25040#(and (or (< 43 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 60)))} is VALID [2018-12-18 17:59:02,056 INFO L273 TraceCheckUtils]: 31: Hoare triple {25040#(and (or (< 43 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 60)))} assume a[i] != 23;i := i + 4; {25041#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 64)))} is VALID [2018-12-18 17:59:02,057 INFO L273 TraceCheckUtils]: 32: Hoare triple {25041#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 64)))} assume i <= n * 4; {25041#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 64)))} is VALID [2018-12-18 17:59:02,058 INFO L273 TraceCheckUtils]: 33: Hoare triple {25041#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 64)))} assume a[i] != 23;i := i + 4; {25042#(and (or (<= main_n 43) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} is VALID [2018-12-18 17:59:02,059 INFO L273 TraceCheckUtils]: 34: Hoare triple {25042#(and (or (<= main_n 43) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} assume i <= n * 4; {25042#(and (or (<= main_n 43) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} is VALID [2018-12-18 17:59:02,060 INFO L273 TraceCheckUtils]: 35: Hoare triple {25042#(and (or (<= main_n 43) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} assume a[i] != 23;i := i + 4; {25043#(and (or (<= main_n 43) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} is VALID [2018-12-18 17:59:02,060 INFO L273 TraceCheckUtils]: 36: Hoare triple {25043#(and (or (<= main_n 43) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} assume i <= n * 4; {25043#(and (or (<= main_n 43) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} is VALID [2018-12-18 17:59:02,061 INFO L273 TraceCheckUtils]: 37: Hoare triple {25043#(and (or (<= main_n 43) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} assume a[i] != 23;i := i + 4; {25044#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 76)))} is VALID [2018-12-18 17:59:02,062 INFO L273 TraceCheckUtils]: 38: Hoare triple {25044#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 76)))} assume i <= n * 4; {25044#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 76)))} is VALID [2018-12-18 17:59:02,063 INFO L273 TraceCheckUtils]: 39: Hoare triple {25044#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 76)))} assume a[i] != 23;i := i + 4; {25045#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 80)))} is VALID [2018-12-18 17:59:02,064 INFO L273 TraceCheckUtils]: 40: Hoare triple {25045#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 80)))} assume i <= n * 4; {25045#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 80)))} is VALID [2018-12-18 17:59:02,065 INFO L273 TraceCheckUtils]: 41: Hoare triple {25045#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {25046#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 43 main_n)) (or (<= main_n 43) (<= main_i 84)))} is VALID [2018-12-18 17:59:02,066 INFO L273 TraceCheckUtils]: 42: Hoare triple {25046#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 43 main_n)) (or (<= main_n 43) (<= main_i 84)))} assume i <= n * 4; {25046#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 43 main_n)) (or (<= main_n 43) (<= main_i 84)))} is VALID [2018-12-18 17:59:02,067 INFO L273 TraceCheckUtils]: 43: Hoare triple {25046#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 43 main_n)) (or (<= main_n 43) (<= main_i 84)))} assume a[i] != 23;i := i + 4; {25047#(and (or (< 43 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 88)))} is VALID [2018-12-18 17:59:02,067 INFO L273 TraceCheckUtils]: 44: Hoare triple {25047#(and (or (< 43 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 88)))} assume i <= n * 4; {25047#(and (or (< 43 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 88)))} is VALID [2018-12-18 17:59:02,068 INFO L273 TraceCheckUtils]: 45: Hoare triple {25047#(and (or (< 43 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 88)))} assume a[i] != 23;i := i + 4; {25048#(and (or (<= main_n 43) (<= main_i 92)) (or (< 43 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:02,069 INFO L273 TraceCheckUtils]: 46: Hoare triple {25048#(and (or (<= main_n 43) (<= main_i 92)) (or (< 43 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25048#(and (or (<= main_n 43) (<= main_i 92)) (or (< 43 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:02,070 INFO L273 TraceCheckUtils]: 47: Hoare triple {25048#(and (or (<= main_n 43) (<= main_i 92)) (or (< 43 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25049#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 96) (<= main_n 43)))} is VALID [2018-12-18 17:59:02,071 INFO L273 TraceCheckUtils]: 48: Hoare triple {25049#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 96) (<= main_n 43)))} assume i <= n * 4; {25049#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 96) (<= main_n 43)))} is VALID [2018-12-18 17:59:02,072 INFO L273 TraceCheckUtils]: 49: Hoare triple {25049#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 96) (<= main_n 43)))} assume a[i] != 23;i := i + 4; {25050#(and (or (<= main_n 43) (<= main_i 100)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} is VALID [2018-12-18 17:59:02,073 INFO L273 TraceCheckUtils]: 50: Hoare triple {25050#(and (or (<= main_n 43) (<= main_i 100)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} assume i <= n * 4; {25050#(and (or (<= main_n 43) (<= main_i 100)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} is VALID [2018-12-18 17:59:02,074 INFO L273 TraceCheckUtils]: 51: Hoare triple {25050#(and (or (<= main_n 43) (<= main_i 100)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)))} assume a[i] != 23;i := i + 4; {25051#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 104) (<= main_n 43)))} is VALID [2018-12-18 17:59:02,074 INFO L273 TraceCheckUtils]: 52: Hoare triple {25051#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 104) (<= main_n 43)))} assume i <= n * 4; {25051#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 104) (<= main_n 43)))} is VALID [2018-12-18 17:59:02,075 INFO L273 TraceCheckUtils]: 53: Hoare triple {25051#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_i 104) (<= main_n 43)))} assume a[i] != 23;i := i + 4; {25052#(and (or (<= main_n 43) (<= main_i 108)) (or (< 43 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:02,076 INFO L273 TraceCheckUtils]: 54: Hoare triple {25052#(and (or (<= main_n 43) (<= main_i 108)) (or (< 43 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25052#(and (or (<= main_n 43) (<= main_i 108)) (or (< 43 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:02,077 INFO L273 TraceCheckUtils]: 55: Hoare triple {25052#(and (or (<= main_n 43) (<= main_i 108)) (or (< 43 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25053#(and (or (<= main_n 43) (<= main_i 112)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2018-12-18 17:59:02,078 INFO L273 TraceCheckUtils]: 56: Hoare triple {25053#(and (or (<= main_n 43) (<= main_i 112)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume i <= n * 4; {25053#(and (or (<= main_n 43) (<= main_i 112)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2018-12-18 17:59:02,079 INFO L273 TraceCheckUtils]: 57: Hoare triple {25053#(and (or (<= main_n 43) (<= main_i 112)) (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume a[i] != 23;i := i + 4; {25054#(and (or (< 43 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 116)))} is VALID [2018-12-18 17:59:02,080 INFO L273 TraceCheckUtils]: 58: Hoare triple {25054#(and (or (< 43 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 116)))} assume i <= n * 4; {25054#(and (or (< 43 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 116)))} is VALID [2018-12-18 17:59:02,081 INFO L273 TraceCheckUtils]: 59: Hoare triple {25054#(and (or (< 43 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 116)))} assume a[i] != 23;i := i + 4; {25055#(and (or (< 43 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 120)))} is VALID [2018-12-18 17:59:02,081 INFO L273 TraceCheckUtils]: 60: Hoare triple {25055#(and (or (< 43 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 120)))} assume i <= n * 4; {25055#(and (or (< 43 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 120)))} is VALID [2018-12-18 17:59:02,082 INFO L273 TraceCheckUtils]: 61: Hoare triple {25055#(and (or (< 43 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 120)))} assume a[i] != 23;i := i + 4; {25056#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 124)))} is VALID [2018-12-18 17:59:02,083 INFO L273 TraceCheckUtils]: 62: Hoare triple {25056#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 124)))} assume i <= n * 4; {25056#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 124)))} is VALID [2018-12-18 17:59:02,084 INFO L273 TraceCheckUtils]: 63: Hoare triple {25056#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 124)))} assume a[i] != 23;i := i + 4; {25057#(and (or (<= main_n 43) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 43 main_n)))} is VALID [2018-12-18 17:59:02,085 INFO L273 TraceCheckUtils]: 64: Hoare triple {25057#(and (or (<= main_n 43) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 43 main_n)))} assume i <= n * 4; {25057#(and (or (<= main_n 43) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 43 main_n)))} is VALID [2018-12-18 17:59:02,086 INFO L273 TraceCheckUtils]: 65: Hoare triple {25057#(and (or (<= main_n 43) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 43 main_n)))} assume a[i] != 23;i := i + 4; {25058#(and (or (<= main_n 43) (<= main_i 132)) (or (< 43 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:02,087 INFO L273 TraceCheckUtils]: 66: Hoare triple {25058#(and (or (<= main_n 43) (<= main_i 132)) (or (< 43 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25058#(and (or (<= main_n 43) (<= main_i 132)) (or (< 43 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:02,088 INFO L273 TraceCheckUtils]: 67: Hoare triple {25058#(and (or (<= main_n 43) (<= main_i 132)) (or (< 43 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25059#(and (or (<= main_n 43) (<= main_i 136)) (or (< 43 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:02,089 INFO L273 TraceCheckUtils]: 68: Hoare triple {25059#(and (or (<= main_n 43) (<= main_i 136)) (or (< 43 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25059#(and (or (<= main_n 43) (<= main_i 136)) (or (< 43 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:02,090 INFO L273 TraceCheckUtils]: 69: Hoare triple {25059#(and (or (<= main_n 43) (<= main_i 136)) (or (< 43 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25060#(and (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 43) (<= main_i 140)))} is VALID [2018-12-18 17:59:02,091 INFO L273 TraceCheckUtils]: 70: Hoare triple {25060#(and (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 43) (<= main_i 140)))} assume i <= n * 4; {25060#(and (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 43) (<= main_i 140)))} is VALID [2018-12-18 17:59:02,092 INFO L273 TraceCheckUtils]: 71: Hoare triple {25060#(and (or (< 43 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 43) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {25061#(and (or (<= main_n 43) (<= main_i 144)) (or (< 43 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:02,093 INFO L273 TraceCheckUtils]: 72: Hoare triple {25061#(and (or (<= main_n 43) (<= main_i 144)) (or (< 43 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25061#(and (or (<= main_n 43) (<= main_i 144)) (or (< 43 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:02,094 INFO L273 TraceCheckUtils]: 73: Hoare triple {25061#(and (or (<= main_n 43) (<= main_i 144)) (or (< 43 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25062#(and (or (<= main_n 43) (<= main_i 148)) (or (< 43 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:02,094 INFO L273 TraceCheckUtils]: 74: Hoare triple {25062#(and (or (<= main_n 43) (<= main_i 148)) (or (< 43 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25062#(and (or (<= main_n 43) (<= main_i 148)) (or (< 43 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:02,095 INFO L273 TraceCheckUtils]: 75: Hoare triple {25062#(and (or (<= main_n 43) (<= main_i 148)) (or (< 43 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25063#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 152)))} is VALID [2018-12-18 17:59:02,096 INFO L273 TraceCheckUtils]: 76: Hoare triple {25063#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 152)))} assume i <= n * 4; {25063#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 152)))} is VALID [2018-12-18 17:59:02,097 INFO L273 TraceCheckUtils]: 77: Hoare triple {25063#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 152)))} assume a[i] != 23;i := i + 4; {25064#(and (or (<= main_n 43) (<= main_i 156)) (or (< 43 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:02,098 INFO L273 TraceCheckUtils]: 78: Hoare triple {25064#(and (or (<= main_n 43) (<= main_i 156)) (or (< 43 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {25064#(and (or (<= main_n 43) (<= main_i 156)) (or (< 43 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:02,099 INFO L273 TraceCheckUtils]: 79: Hoare triple {25064#(and (or (<= main_n 43) (<= main_i 156)) (or (< 43 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {25065#(and (or (< 43 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 160)))} is VALID [2018-12-18 17:59:02,100 INFO L273 TraceCheckUtils]: 80: Hoare triple {25065#(and (or (< 43 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 160)))} assume i <= n * 4; {25065#(and (or (< 43 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 160)))} is VALID [2018-12-18 17:59:02,110 INFO L273 TraceCheckUtils]: 81: Hoare triple {25065#(and (or (< 43 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 160)))} assume a[i] != 23;i := i + 4; {25066#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 164)))} is VALID [2018-12-18 17:59:02,110 INFO L273 TraceCheckUtils]: 82: Hoare triple {25066#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 164)))} assume i <= n * 4; {25066#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 164)))} is VALID [2018-12-18 17:59:02,111 INFO L273 TraceCheckUtils]: 83: Hoare triple {25066#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 43 main_n)) (or (<= main_n 43) (<= main_i 164)))} assume a[i] != 23;i := i + 4; {25067#(and (or (< 43 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 168)))} is VALID [2018-12-18 17:59:02,112 INFO L273 TraceCheckUtils]: 84: Hoare triple {25067#(and (or (< 43 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 168)))} assume i <= n * 4; {25067#(and (or (< 43 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 168)))} is VALID [2018-12-18 17:59:02,112 INFO L273 TraceCheckUtils]: 85: Hoare triple {25067#(and (or (< 43 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 43) (<= main_i 168)))} assume a[i] != 23;i := i + 4; {25068#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 43 main_n)) (or (<= main_n 43) (<= main_i 172)))} is VALID [2018-12-18 17:59:02,113 INFO L273 TraceCheckUtils]: 86: Hoare triple {25068#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 43 main_n)) (or (<= main_n 43) (<= main_i 172)))} assume i <= n * 4; {25069#(and (or (< 43 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 172))} is VALID [2018-12-18 17:59:02,114 INFO L273 TraceCheckUtils]: 87: Hoare triple {25069#(and (or (< 43 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 172))} assume a[i] != 23;i := i + 4; {25070#(and (<= main_i 176) (<= 44 main_n))} is VALID [2018-12-18 17:59:02,114 INFO L273 TraceCheckUtils]: 88: Hoare triple {25070#(and (<= main_i 176) (<= 44 main_n))} assume !(i <= n * 4); {25024#false} is VALID [2018-12-18 17:59:02,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:59:02,148 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:59:02,148 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:59:02,148 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:59:02,148 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:59:02,148 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:59:02,148 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:59:02,156 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:59:02,156 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-18 17:59:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:59:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:59:02,196 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:59:02,206 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:59:02,208 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:59:02,213 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:59:02,213 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:59:02,215 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:59:02,215 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_47]. (and (= main_i 0) (= (store v_main_a_47 (* 4 main_n) 23) main_a)) [2018-12-18 17:59:02,215 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:59:05,353 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:59:05,356 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:59:05,360 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:59:05,360 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:59:05,365 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:59:05,365 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 172) 23)) (<= main_i 176) (<= 172 .cse0) (= 23 (select main_a .cse0)))) [2018-12-18 17:59:05,365 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 176) (<= 172 .cse0) (not (= 172 .cse0)))) [2018-12-18 17:59:05,420 INFO L273 TraceCheckUtils]: 0: Hoare triple {25023#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {25074#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,420 INFO L273 TraceCheckUtils]: 1: Hoare triple {25074#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25078#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:59:05,421 INFO L273 TraceCheckUtils]: 2: Hoare triple {25078#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {25078#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:59:05,422 INFO L273 TraceCheckUtils]: 3: Hoare triple {25078#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {25085#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,422 INFO L273 TraceCheckUtils]: 4: Hoare triple {25085#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25085#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,423 INFO L273 TraceCheckUtils]: 5: Hoare triple {25085#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:59:05,424 INFO L273 TraceCheckUtils]: 6: Hoare triple {25092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {25092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:59:05,424 INFO L273 TraceCheckUtils]: 7: Hoare triple {25092#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {25099#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,425 INFO L273 TraceCheckUtils]: 8: Hoare triple {25099#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25099#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,426 INFO L273 TraceCheckUtils]: 9: Hoare triple {25099#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25106#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,426 INFO L273 TraceCheckUtils]: 10: Hoare triple {25106#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25106#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,427 INFO L273 TraceCheckUtils]: 11: Hoare triple {25106#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25113#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,428 INFO L273 TraceCheckUtils]: 12: Hoare triple {25113#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25113#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,428 INFO L273 TraceCheckUtils]: 13: Hoare triple {25113#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25120#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,429 INFO L273 TraceCheckUtils]: 14: Hoare triple {25120#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25120#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,430 INFO L273 TraceCheckUtils]: 15: Hoare triple {25120#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25127#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,430 INFO L273 TraceCheckUtils]: 16: Hoare triple {25127#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25127#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,431 INFO L273 TraceCheckUtils]: 17: Hoare triple {25127#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25134#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,432 INFO L273 TraceCheckUtils]: 18: Hoare triple {25134#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25134#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,432 INFO L273 TraceCheckUtils]: 19: Hoare triple {25134#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25141#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,433 INFO L273 TraceCheckUtils]: 20: Hoare triple {25141#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25141#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,434 INFO L273 TraceCheckUtils]: 21: Hoare triple {25141#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25148#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,434 INFO L273 TraceCheckUtils]: 22: Hoare triple {25148#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25148#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,435 INFO L273 TraceCheckUtils]: 23: Hoare triple {25148#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25155#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,436 INFO L273 TraceCheckUtils]: 24: Hoare triple {25155#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25155#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,436 INFO L273 TraceCheckUtils]: 25: Hoare triple {25155#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25162#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,437 INFO L273 TraceCheckUtils]: 26: Hoare triple {25162#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25162#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,438 INFO L273 TraceCheckUtils]: 27: Hoare triple {25162#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25169#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,438 INFO L273 TraceCheckUtils]: 28: Hoare triple {25169#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25169#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,439 INFO L273 TraceCheckUtils]: 29: Hoare triple {25169#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25176#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,440 INFO L273 TraceCheckUtils]: 30: Hoare triple {25176#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25176#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,440 INFO L273 TraceCheckUtils]: 31: Hoare triple {25176#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25183#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,441 INFO L273 TraceCheckUtils]: 32: Hoare triple {25183#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25183#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,442 INFO L273 TraceCheckUtils]: 33: Hoare triple {25183#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25190#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,442 INFO L273 TraceCheckUtils]: 34: Hoare triple {25190#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25190#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,443 INFO L273 TraceCheckUtils]: 35: Hoare triple {25190#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25197#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,444 INFO L273 TraceCheckUtils]: 36: Hoare triple {25197#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25197#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,444 INFO L273 TraceCheckUtils]: 37: Hoare triple {25197#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25204#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,445 INFO L273 TraceCheckUtils]: 38: Hoare triple {25204#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25204#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,446 INFO L273 TraceCheckUtils]: 39: Hoare triple {25204#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:59:05,446 INFO L273 TraceCheckUtils]: 40: Hoare triple {25211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {25211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:59:05,447 INFO L273 TraceCheckUtils]: 41: Hoare triple {25211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {25218#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,448 INFO L273 TraceCheckUtils]: 42: Hoare triple {25218#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25218#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,448 INFO L273 TraceCheckUtils]: 43: Hoare triple {25218#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25225#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,449 INFO L273 TraceCheckUtils]: 44: Hoare triple {25225#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25225#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,450 INFO L273 TraceCheckUtils]: 45: Hoare triple {25225#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25232#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,450 INFO L273 TraceCheckUtils]: 46: Hoare triple {25232#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25232#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,451 INFO L273 TraceCheckUtils]: 47: Hoare triple {25232#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25239#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,452 INFO L273 TraceCheckUtils]: 48: Hoare triple {25239#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25239#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,452 INFO L273 TraceCheckUtils]: 49: Hoare triple {25239#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25246#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,453 INFO L273 TraceCheckUtils]: 50: Hoare triple {25246#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25246#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,454 INFO L273 TraceCheckUtils]: 51: Hoare triple {25246#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25253#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,454 INFO L273 TraceCheckUtils]: 52: Hoare triple {25253#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25253#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,455 INFO L273 TraceCheckUtils]: 53: Hoare triple {25253#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25260#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,456 INFO L273 TraceCheckUtils]: 54: Hoare triple {25260#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25260#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,456 INFO L273 TraceCheckUtils]: 55: Hoare triple {25260#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25267#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,457 INFO L273 TraceCheckUtils]: 56: Hoare triple {25267#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25267#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,458 INFO L273 TraceCheckUtils]: 57: Hoare triple {25267#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25274#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,458 INFO L273 TraceCheckUtils]: 58: Hoare triple {25274#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25274#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,459 INFO L273 TraceCheckUtils]: 59: Hoare triple {25274#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25281#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,460 INFO L273 TraceCheckUtils]: 60: Hoare triple {25281#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25281#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,460 INFO L273 TraceCheckUtils]: 61: Hoare triple {25281#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25288#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,461 INFO L273 TraceCheckUtils]: 62: Hoare triple {25288#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25288#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,462 INFO L273 TraceCheckUtils]: 63: Hoare triple {25288#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25295#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,463 INFO L273 TraceCheckUtils]: 64: Hoare triple {25295#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25295#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,463 INFO L273 TraceCheckUtils]: 65: Hoare triple {25295#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25302#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,464 INFO L273 TraceCheckUtils]: 66: Hoare triple {25302#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25302#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,465 INFO L273 TraceCheckUtils]: 67: Hoare triple {25302#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25309#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,465 INFO L273 TraceCheckUtils]: 68: Hoare triple {25309#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25309#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,466 INFO L273 TraceCheckUtils]: 69: Hoare triple {25309#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25316#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 17:59:05,467 INFO L273 TraceCheckUtils]: 70: Hoare triple {25316#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {25316#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 17:59:05,467 INFO L273 TraceCheckUtils]: 71: Hoare triple {25316#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {25323#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,468 INFO L273 TraceCheckUtils]: 72: Hoare triple {25323#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25323#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,469 INFO L273 TraceCheckUtils]: 73: Hoare triple {25323#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25330#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,469 INFO L273 TraceCheckUtils]: 74: Hoare triple {25330#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25330#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,470 INFO L273 TraceCheckUtils]: 75: Hoare triple {25330#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25337#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,471 INFO L273 TraceCheckUtils]: 76: Hoare triple {25337#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25337#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,472 INFO L273 TraceCheckUtils]: 77: Hoare triple {25337#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25344#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,472 INFO L273 TraceCheckUtils]: 78: Hoare triple {25344#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25344#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,473 INFO L273 TraceCheckUtils]: 79: Hoare triple {25344#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25351#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,473 INFO L273 TraceCheckUtils]: 80: Hoare triple {25351#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25351#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,474 INFO L273 TraceCheckUtils]: 81: Hoare triple {25351#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25358#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 17:59:05,475 INFO L273 TraceCheckUtils]: 82: Hoare triple {25358#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {25358#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 17:59:05,476 INFO L273 TraceCheckUtils]: 83: Hoare triple {25358#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {25365#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,476 INFO L273 TraceCheckUtils]: 84: Hoare triple {25365#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25365#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,477 INFO L273 TraceCheckUtils]: 85: Hoare triple {25365#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25372#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,477 INFO L273 TraceCheckUtils]: 86: Hoare triple {25372#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {25376#(and (= main_i 172) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:05,478 INFO L273 TraceCheckUtils]: 87: Hoare triple {25376#(and (= main_i 172) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {25070#(and (<= main_i 176) (<= 44 main_n))} is VALID [2018-12-18 17:59:05,479 INFO L273 TraceCheckUtils]: 88: Hoare triple {25070#(and (<= main_i 176) (<= 44 main_n))} assume !(i <= n * 4); {25024#false} is VALID [2018-12-18 17:59:05,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:59:05,497 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:59:10,952 INFO L273 TraceCheckUtils]: 88: Hoare triple {25383#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {25024#false} is VALID [2018-12-18 17:59:10,953 INFO L273 TraceCheckUtils]: 87: Hoare triple {25387#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {25383#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:59:10,954 INFO L273 TraceCheckUtils]: 86: Hoare triple {25391#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {25387#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:59:10,955 INFO L273 TraceCheckUtils]: 85: Hoare triple {25395#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {25391#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:59:10,955 INFO L273 TraceCheckUtils]: 84: Hoare triple {25395#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {25395#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:59:10,956 INFO L273 TraceCheckUtils]: 83: Hoare triple {25402#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {25395#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:59:10,956 INFO L273 TraceCheckUtils]: 82: Hoare triple {25402#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {25402#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:59:10,957 INFO L273 TraceCheckUtils]: 81: Hoare triple {25409#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {25402#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:59:10,957 INFO L273 TraceCheckUtils]: 80: Hoare triple {25409#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {25409#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:59:10,958 INFO L273 TraceCheckUtils]: 79: Hoare triple {25416#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {25409#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:59:10,958 INFO L273 TraceCheckUtils]: 78: Hoare triple {25416#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {25416#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:59:10,959 INFO L273 TraceCheckUtils]: 77: Hoare triple {25423#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25416#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:59:10,960 INFO L273 TraceCheckUtils]: 76: Hoare triple {25423#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {25423#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,961 INFO L273 TraceCheckUtils]: 75: Hoare triple {25430#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {25423#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,961 INFO L273 TraceCheckUtils]: 74: Hoare triple {25430#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {25430#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:59:10,962 INFO L273 TraceCheckUtils]: 73: Hoare triple {25437#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25430#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:59:10,963 INFO L273 TraceCheckUtils]: 72: Hoare triple {25437#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {25437#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,964 INFO L273 TraceCheckUtils]: 71: Hoare triple {25444#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25437#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,964 INFO L273 TraceCheckUtils]: 70: Hoare triple {25444#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {25444#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,965 INFO L273 TraceCheckUtils]: 69: Hoare triple {25451#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25444#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,966 INFO L273 TraceCheckUtils]: 68: Hoare triple {25451#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {25451#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,967 INFO L273 TraceCheckUtils]: 67: Hoare triple {25458#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {25451#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,967 INFO L273 TraceCheckUtils]: 66: Hoare triple {25458#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {25458#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:59:10,968 INFO L273 TraceCheckUtils]: 65: Hoare triple {25465#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25458#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:59:10,969 INFO L273 TraceCheckUtils]: 64: Hoare triple {25465#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {25465#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,970 INFO L273 TraceCheckUtils]: 63: Hoare triple {25472#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25465#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,971 INFO L273 TraceCheckUtils]: 62: Hoare triple {25472#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {25472#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,972 INFO L273 TraceCheckUtils]: 61: Hoare triple {25479#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {25472#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,972 INFO L273 TraceCheckUtils]: 60: Hoare triple {25479#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {25479#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:59:10,973 INFO L273 TraceCheckUtils]: 59: Hoare triple {25486#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25479#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:59:10,974 INFO L273 TraceCheckUtils]: 58: Hoare triple {25486#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {25486#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,975 INFO L273 TraceCheckUtils]: 57: Hoare triple {25493#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {25486#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,975 INFO L273 TraceCheckUtils]: 56: Hoare triple {25493#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {25493#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:59:10,976 INFO L273 TraceCheckUtils]: 55: Hoare triple {25500#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {25493#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:59:10,977 INFO L273 TraceCheckUtils]: 54: Hoare triple {25500#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {25500#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:59:10,978 INFO L273 TraceCheckUtils]: 53: Hoare triple {25507#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {25500#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:59:10,978 INFO L273 TraceCheckUtils]: 52: Hoare triple {25507#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {25507#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:59:10,979 INFO L273 TraceCheckUtils]: 51: Hoare triple {25514#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {25507#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:59:10,980 INFO L273 TraceCheckUtils]: 50: Hoare triple {25514#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {25514#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:59:10,981 INFO L273 TraceCheckUtils]: 49: Hoare triple {25521#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {25514#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:59:10,981 INFO L273 TraceCheckUtils]: 48: Hoare triple {25521#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {25521#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:59:10,982 INFO L273 TraceCheckUtils]: 47: Hoare triple {25528#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {25521#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:59:10,983 INFO L273 TraceCheckUtils]: 46: Hoare triple {25528#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {25528#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:59:10,984 INFO L273 TraceCheckUtils]: 45: Hoare triple {25535#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25528#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:59:10,984 INFO L273 TraceCheckUtils]: 44: Hoare triple {25535#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {25535#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,986 INFO L273 TraceCheckUtils]: 43: Hoare triple {25542#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25535#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,986 INFO L273 TraceCheckUtils]: 42: Hoare triple {25542#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {25542#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,987 INFO L273 TraceCheckUtils]: 41: Hoare triple {25549#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25542#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,988 INFO L273 TraceCheckUtils]: 40: Hoare triple {25549#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {25549#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,989 INFO L273 TraceCheckUtils]: 39: Hoare triple {25556#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {25549#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,989 INFO L273 TraceCheckUtils]: 38: Hoare triple {25556#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {25556#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:59:10,990 INFO L273 TraceCheckUtils]: 37: Hoare triple {25563#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25556#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:59:10,991 INFO L273 TraceCheckUtils]: 36: Hoare triple {25563#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {25563#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,992 INFO L273 TraceCheckUtils]: 35: Hoare triple {25570#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {25563#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,992 INFO L273 TraceCheckUtils]: 34: Hoare triple {25570#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {25570#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:59:10,993 INFO L273 TraceCheckUtils]: 33: Hoare triple {25577#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {25570#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:59:10,994 INFO L273 TraceCheckUtils]: 32: Hoare triple {25577#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {25577#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:59:10,995 INFO L273 TraceCheckUtils]: 31: Hoare triple {25584#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {25577#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:59:10,995 INFO L273 TraceCheckUtils]: 30: Hoare triple {25584#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {25584#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:59:10,996 INFO L273 TraceCheckUtils]: 29: Hoare triple {25591#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25584#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:59:10,997 INFO L273 TraceCheckUtils]: 28: Hoare triple {25591#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {25591#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,998 INFO L273 TraceCheckUtils]: 27: Hoare triple {25598#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25591#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:59:10,998 INFO L273 TraceCheckUtils]: 26: Hoare triple {25598#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {25598#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:59:11,000 INFO L273 TraceCheckUtils]: 25: Hoare triple {25605#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {25598#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:59:11,000 INFO L273 TraceCheckUtils]: 24: Hoare triple {25605#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {25605#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:59:11,001 INFO L273 TraceCheckUtils]: 23: Hoare triple {25612#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25605#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:59:11,002 INFO L273 TraceCheckUtils]: 22: Hoare triple {25612#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {25612#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:59:11,003 INFO L273 TraceCheckUtils]: 21: Hoare triple {25619#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {25612#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:59:11,003 INFO L273 TraceCheckUtils]: 20: Hoare triple {25619#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {25619#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 17:59:11,004 INFO L273 TraceCheckUtils]: 19: Hoare triple {25626#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {25619#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 17:59:11,005 INFO L273 TraceCheckUtils]: 18: Hoare triple {25626#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {25626#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 17:59:11,006 INFO L273 TraceCheckUtils]: 17: Hoare triple {25633#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {25626#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 17:59:11,006 INFO L273 TraceCheckUtils]: 16: Hoare triple {25633#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {25633#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 17:59:11,007 INFO L273 TraceCheckUtils]: 15: Hoare triple {25640#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {25633#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 17:59:11,008 INFO L273 TraceCheckUtils]: 14: Hoare triple {25640#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {25640#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 17:59:11,009 INFO L273 TraceCheckUtils]: 13: Hoare triple {25647#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {25640#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 17:59:11,009 INFO L273 TraceCheckUtils]: 12: Hoare triple {25647#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {25647#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 17:59:11,010 INFO L273 TraceCheckUtils]: 11: Hoare triple {25654#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {25647#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 17:59:11,011 INFO L273 TraceCheckUtils]: 10: Hoare triple {25654#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {25654#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 17:59:11,012 INFO L273 TraceCheckUtils]: 9: Hoare triple {25661#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {25654#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 17:59:11,012 INFO L273 TraceCheckUtils]: 8: Hoare triple {25661#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {25661#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 17:59:11,014 INFO L273 TraceCheckUtils]: 7: Hoare triple {25668#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {25661#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 17:59:11,014 INFO L273 TraceCheckUtils]: 6: Hoare triple {25668#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {25668#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 17:59:11,015 INFO L273 TraceCheckUtils]: 5: Hoare triple {25675#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {25668#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 17:59:11,016 INFO L273 TraceCheckUtils]: 4: Hoare triple {25675#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {25675#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 17:59:11,017 INFO L273 TraceCheckUtils]: 3: Hoare triple {25682#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25675#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 17:59:11,017 INFO L273 TraceCheckUtils]: 2: Hoare triple {25682#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {25682#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2018-12-18 17:59:11,018 INFO L273 TraceCheckUtils]: 1: Hoare triple {25689#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {25682#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2018-12-18 17:59:11,019 INFO L273 TraceCheckUtils]: 0: Hoare triple {25023#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {25689#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2018-12-18 17:59:11,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:59:11,080 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:59:11,080 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46] total 137 [2018-12-18 17:59:11,080 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:59:11,083 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 89 [2018-12-18 17:59:11,083 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:59:11,083 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 93 states. [2018-12-18 17:59:11,385 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 177 edges. 177 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:59:11,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 93 states [2018-12-18 17:59:11,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2018-12-18 17:59:11,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2354, Invalid=16828, Unknown=0, NotChecked=0, Total=19182 [2018-12-18 17:59:11,387 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand 93 states. [2018-12-18 17:59:25,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:59:25,890 INFO L93 Difference]: Finished difference Result 94 states and 94 transitions. [2018-12-18 17:59:25,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-12-18 17:59:25,891 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 89 [2018-12-18 17:59:25,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:59:25,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-12-18 17:59:25,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 94 transitions. [2018-12-18 17:59:25,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-12-18 17:59:25,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 94 transitions. [2018-12-18 17:59:25,893 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 48 states and 94 transitions. [2018-12-18 17:59:25,998 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 94 edges. 94 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:59:25,999 INFO L225 Difference]: With dead ends: 94 [2018-12-18 17:59:25,999 INFO L226 Difference]: Without dead ends: 93 [2018-12-18 17:59:26,000 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4320 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=2354, Invalid=16828, Unknown=0, NotChecked=0, Total=19182 [2018-12-18 17:59:26,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-12-18 17:59:26,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 92. [2018-12-18 17:59:26,101 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:59:26,101 INFO L82 GeneralOperation]: Start isEquivalent. First operand 93 states. Second operand 92 states. [2018-12-18 17:59:26,101 INFO L74 IsIncluded]: Start isIncluded. First operand 93 states. Second operand 92 states. [2018-12-18 17:59:26,101 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 92 states. [2018-12-18 17:59:26,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:59:26,103 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2018-12-18 17:59:26,103 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 93 transitions. [2018-12-18 17:59:26,103 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:59:26,103 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:59:26,103 INFO L74 IsIncluded]: Start isIncluded. First operand 92 states. Second operand 93 states. [2018-12-18 17:59:26,103 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 93 states. [2018-12-18 17:59:26,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:59:26,104 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2018-12-18 17:59:26,104 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 93 transitions. [2018-12-18 17:59:26,105 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:59:26,105 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:59:26,105 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:59:26,105 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:59:26,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-12-18 17:59:26,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2018-12-18 17:59:26,106 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 89 [2018-12-18 17:59:26,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:59:26,107 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2018-12-18 17:59:26,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has 93 states. [2018-12-18 17:59:26,107 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2018-12-18 17:59:26,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-12-18 17:59:26,107 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:59:26,107 INFO L402 BasicCegarLoop]: trace histogram [45, 44, 1, 1] [2018-12-18 17:59:26,108 INFO L423 AbstractCegarLoop]: === Iteration 45 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:59:26,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:59:26,108 INFO L82 PathProgramCache]: Analyzing trace with hash -11425992, now seen corresponding path program 44 times [2018-12-18 17:59:26,108 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:59:26,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:59:26,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:59:26,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:59:26,109 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:59:26,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:59:26,602 WARN L181 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-12-18 17:59:29,012 INFO L273 TraceCheckUtils]: 0: Hoare triple {26155#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {26157#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 0) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,013 INFO L273 TraceCheckUtils]: 1: Hoare triple {26157#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 0) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 4)))} is VALID [2018-12-18 17:59:29,014 INFO L273 TraceCheckUtils]: 2: Hoare triple {26158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 4)))} assume i <= n * 4; {26158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 4)))} is VALID [2018-12-18 17:59:29,015 INFO L273 TraceCheckUtils]: 3: Hoare triple {26158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {26159#(and (or (<= main_i 8) (<= main_n 44)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,016 INFO L273 TraceCheckUtils]: 4: Hoare triple {26159#(and (or (<= main_i 8) (<= main_n 44)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26159#(and (or (<= main_i 8) (<= main_n 44)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,017 INFO L273 TraceCheckUtils]: 5: Hoare triple {26159#(and (or (<= main_i 8) (<= main_n 44)) (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26160#(and (or (<= main_n 44) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,018 INFO L273 TraceCheckUtils]: 6: Hoare triple {26160#(and (or (<= main_n 44) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26160#(and (or (<= main_n 44) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,019 INFO L273 TraceCheckUtils]: 7: Hoare triple {26160#(and (or (<= main_n 44) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26161#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 16)))} is VALID [2018-12-18 17:59:29,020 INFO L273 TraceCheckUtils]: 8: Hoare triple {26161#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 16)))} assume i <= n * 4; {26161#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 16)))} is VALID [2018-12-18 17:59:29,021 INFO L273 TraceCheckUtils]: 9: Hoare triple {26161#(and (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {26162#(and (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 20) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,022 INFO L273 TraceCheckUtils]: 10: Hoare triple {26162#(and (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 20) (<= main_n 44)))} assume i <= n * 4; {26162#(and (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 20) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,023 INFO L273 TraceCheckUtils]: 11: Hoare triple {26162#(and (or (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 20) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26163#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 24) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,024 INFO L273 TraceCheckUtils]: 12: Hoare triple {26163#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 24) (<= main_n 44)))} assume i <= n * 4; {26163#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 24) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,025 INFO L273 TraceCheckUtils]: 13: Hoare triple {26163#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 24) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26164#(and (or (<= main_n 44) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,026 INFO L273 TraceCheckUtils]: 14: Hoare triple {26164#(and (or (<= main_n 44) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26164#(and (or (<= main_n 44) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,027 INFO L273 TraceCheckUtils]: 15: Hoare triple {26164#(and (or (<= main_n 44) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26165#(and (or (<= main_i 32) (<= main_n 44)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,028 INFO L273 TraceCheckUtils]: 16: Hoare triple {26165#(and (or (<= main_i 32) (<= main_n 44)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26165#(and (or (<= main_i 32) (<= main_n 44)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,029 INFO L273 TraceCheckUtils]: 17: Hoare triple {26165#(and (or (<= main_i 32) (<= main_n 44)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26166#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 44 main_n)) (or (<= main_i 36) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,030 INFO L273 TraceCheckUtils]: 18: Hoare triple {26166#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 44 main_n)) (or (<= main_i 36) (<= main_n 44)))} assume i <= n * 4; {26166#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 44 main_n)) (or (<= main_i 36) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,031 INFO L273 TraceCheckUtils]: 19: Hoare triple {26166#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 44 main_n)) (or (<= main_i 36) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26167#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 40) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,032 INFO L273 TraceCheckUtils]: 20: Hoare triple {26167#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 40) (<= main_n 44)))} assume i <= n * 4; {26167#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 40) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,033 INFO L273 TraceCheckUtils]: 21: Hoare triple {26167#(and (or (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 40) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26168#(and (or (<= main_n 44) (<= main_i 44)) (or (< 44 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:29,034 INFO L273 TraceCheckUtils]: 22: Hoare triple {26168#(and (or (<= main_n 44) (<= main_i 44)) (or (< 44 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {26168#(and (or (<= main_n 44) (<= main_i 44)) (or (< 44 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:29,035 INFO L273 TraceCheckUtils]: 23: Hoare triple {26168#(and (or (<= main_n 44) (<= main_i 44)) (or (< 44 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {26169#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 48)))} is VALID [2018-12-18 17:59:29,036 INFO L273 TraceCheckUtils]: 24: Hoare triple {26169#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 48)))} assume i <= n * 4; {26169#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 48)))} is VALID [2018-12-18 17:59:29,037 INFO L273 TraceCheckUtils]: 25: Hoare triple {26169#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {26170#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 52) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,039 INFO L273 TraceCheckUtils]: 26: Hoare triple {26170#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 52) (<= main_n 44)))} assume i <= n * 4; {26170#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 52) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,040 INFO L273 TraceCheckUtils]: 27: Hoare triple {26170#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 52) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26171#(and (or (<= main_i 56) (<= main_n 44)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,041 INFO L273 TraceCheckUtils]: 28: Hoare triple {26171#(and (or (<= main_i 56) (<= main_n 44)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26171#(and (or (<= main_i 56) (<= main_n 44)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,041 INFO L273 TraceCheckUtils]: 29: Hoare triple {26171#(and (or (<= main_i 56) (<= main_n 44)) (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26172#(and (or (<= main_i 60) (<= main_n 44)) (or (< 44 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:29,042 INFO L273 TraceCheckUtils]: 30: Hoare triple {26172#(and (or (<= main_i 60) (<= main_n 44)) (or (< 44 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {26172#(and (or (<= main_i 60) (<= main_n 44)) (or (< 44 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:29,043 INFO L273 TraceCheckUtils]: 31: Hoare triple {26172#(and (or (<= main_i 60) (<= main_n 44)) (or (< 44 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {26173#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 64) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,044 INFO L273 TraceCheckUtils]: 32: Hoare triple {26173#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 64) (<= main_n 44)))} assume i <= n * 4; {26173#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 64) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,045 INFO L273 TraceCheckUtils]: 33: Hoare triple {26173#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 64) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26174#(and (or (<= main_n 44) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,045 INFO L273 TraceCheckUtils]: 34: Hoare triple {26174#(and (or (<= main_n 44) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26174#(and (or (<= main_n 44) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,046 INFO L273 TraceCheckUtils]: 35: Hoare triple {26174#(and (or (<= main_n 44) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26175#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 72)))} is VALID [2018-12-18 17:59:29,047 INFO L273 TraceCheckUtils]: 36: Hoare triple {26175#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 72)))} assume i <= n * 4; {26175#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 72)))} is VALID [2018-12-18 17:59:29,048 INFO L273 TraceCheckUtils]: 37: Hoare triple {26175#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 72)))} assume a[i] != 23;i := i + 4; {26176#(and (or (<= main_i 76) (<= main_n 44)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,049 INFO L273 TraceCheckUtils]: 38: Hoare triple {26176#(and (or (<= main_i 76) (<= main_n 44)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26176#(and (or (<= main_i 76) (<= main_n 44)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,050 INFO L273 TraceCheckUtils]: 39: Hoare triple {26176#(and (or (<= main_i 76) (<= main_n 44)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26177#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 80)))} is VALID [2018-12-18 17:59:29,051 INFO L273 TraceCheckUtils]: 40: Hoare triple {26177#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 80)))} assume i <= n * 4; {26177#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 80)))} is VALID [2018-12-18 17:59:29,052 INFO L273 TraceCheckUtils]: 41: Hoare triple {26177#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {26178#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 44 main_n)) (or (<= main_i 84) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,052 INFO L273 TraceCheckUtils]: 42: Hoare triple {26178#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 44 main_n)) (or (<= main_i 84) (<= main_n 44)))} assume i <= n * 4; {26178#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 44 main_n)) (or (<= main_i 84) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,053 INFO L273 TraceCheckUtils]: 43: Hoare triple {26178#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 44 main_n)) (or (<= main_i 84) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26179#(and (or (<= main_i 88) (<= main_n 44)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,054 INFO L273 TraceCheckUtils]: 44: Hoare triple {26179#(and (or (<= main_i 88) (<= main_n 44)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26179#(and (or (<= main_i 88) (<= main_n 44)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,055 INFO L273 TraceCheckUtils]: 45: Hoare triple {26179#(and (or (<= main_i 88) (<= main_n 44)) (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26180#(and (or (< 44 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,056 INFO L273 TraceCheckUtils]: 46: Hoare triple {26180#(and (or (< 44 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 44)))} assume i <= n * 4; {26180#(and (or (< 44 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,057 INFO L273 TraceCheckUtils]: 47: Hoare triple {26180#(and (or (< 44 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26181#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 96) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,058 INFO L273 TraceCheckUtils]: 48: Hoare triple {26181#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 96) (<= main_n 44)))} assume i <= n * 4; {26181#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 96) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,059 INFO L273 TraceCheckUtils]: 49: Hoare triple {26181#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 96) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26182#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 100) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,059 INFO L273 TraceCheckUtils]: 50: Hoare triple {26182#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 100) (<= main_n 44)))} assume i <= n * 4; {26182#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 100) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,060 INFO L273 TraceCheckUtils]: 51: Hoare triple {26182#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 100) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26183#(and (or (<= main_i 104) (<= main_n 44)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,061 INFO L273 TraceCheckUtils]: 52: Hoare triple {26183#(and (or (<= main_i 104) (<= main_n 44)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26183#(and (or (<= main_i 104) (<= main_n 44)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,062 INFO L273 TraceCheckUtils]: 53: Hoare triple {26183#(and (or (<= main_i 104) (<= main_n 44)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26184#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 108)))} is VALID [2018-12-18 17:59:29,063 INFO L273 TraceCheckUtils]: 54: Hoare triple {26184#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 108)))} assume i <= n * 4; {26184#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 108)))} is VALID [2018-12-18 17:59:29,064 INFO L273 TraceCheckUtils]: 55: Hoare triple {26184#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {26185#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 112)))} is VALID [2018-12-18 17:59:29,065 INFO L273 TraceCheckUtils]: 56: Hoare triple {26185#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 112)))} assume i <= n * 4; {26185#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 112)))} is VALID [2018-12-18 17:59:29,066 INFO L273 TraceCheckUtils]: 57: Hoare triple {26185#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 112)))} assume a[i] != 23;i := i + 4; {26186#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 116) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,067 INFO L273 TraceCheckUtils]: 58: Hoare triple {26186#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 116) (<= main_n 44)))} assume i <= n * 4; {26186#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 116) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,068 INFO L273 TraceCheckUtils]: 59: Hoare triple {26186#(and (or (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 116) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26187#(and (or (<= main_i 120) (<= main_n 44)) (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,068 INFO L273 TraceCheckUtils]: 60: Hoare triple {26187#(and (or (<= main_i 120) (<= main_n 44)) (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26187#(and (or (<= main_i 120) (<= main_n 44)) (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,069 INFO L273 TraceCheckUtils]: 61: Hoare triple {26187#(and (or (<= main_i 120) (<= main_n 44)) (or (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26188#(and (or (<= main_n 44) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,070 INFO L273 TraceCheckUtils]: 62: Hoare triple {26188#(and (or (<= main_n 44) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26188#(and (or (<= main_n 44) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,071 INFO L273 TraceCheckUtils]: 63: Hoare triple {26188#(and (or (<= main_n 44) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26189#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 44 main_n)) (or (<= main_i 128) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,072 INFO L273 TraceCheckUtils]: 64: Hoare triple {26189#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 44 main_n)) (or (<= main_i 128) (<= main_n 44)))} assume i <= n * 4; {26189#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 44 main_n)) (or (<= main_i 128) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,073 INFO L273 TraceCheckUtils]: 65: Hoare triple {26189#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 44 main_n)) (or (<= main_i 128) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26190#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 132) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,074 INFO L273 TraceCheckUtils]: 66: Hoare triple {26190#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 132) (<= main_n 44)))} assume i <= n * 4; {26190#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 132) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,075 INFO L273 TraceCheckUtils]: 67: Hoare triple {26190#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 132) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26191#(and (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 136) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,076 INFO L273 TraceCheckUtils]: 68: Hoare triple {26191#(and (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 136) (<= main_n 44)))} assume i <= n * 4; {26191#(and (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 136) (<= main_n 44)))} is VALID [2018-12-18 17:59:29,077 INFO L273 TraceCheckUtils]: 69: Hoare triple {26191#(and (or (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_i 136) (<= main_n 44)))} assume a[i] != 23;i := i + 4; {26192#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 140)))} is VALID [2018-12-18 17:59:29,078 INFO L273 TraceCheckUtils]: 70: Hoare triple {26192#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 140)))} assume i <= n * 4; {26192#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 140)))} is VALID [2018-12-18 17:59:29,079 INFO L273 TraceCheckUtils]: 71: Hoare triple {26192#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i)) (< 44 main_n)) (or (<= main_n 44) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {26193#(and (or (< 44 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 144)))} is VALID [2018-12-18 17:59:29,080 INFO L273 TraceCheckUtils]: 72: Hoare triple {26193#(and (or (< 44 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 144)))} assume i <= n * 4; {26193#(and (or (< 44 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 144)))} is VALID [2018-12-18 17:59:29,081 INFO L273 TraceCheckUtils]: 73: Hoare triple {26193#(and (or (< 44 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 144)))} assume a[i] != 23;i := i + 4; {26194#(and (or (< 44 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 148)))} is VALID [2018-12-18 17:59:29,081 INFO L273 TraceCheckUtils]: 74: Hoare triple {26194#(and (or (< 44 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 148)))} assume i <= n * 4; {26194#(and (or (< 44 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 148)))} is VALID [2018-12-18 17:59:29,083 INFO L273 TraceCheckUtils]: 75: Hoare triple {26194#(and (or (< 44 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 44) (<= main_i 148)))} assume a[i] != 23;i := i + 4; {26195#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 152)))} is VALID [2018-12-18 17:59:29,083 INFO L273 TraceCheckUtils]: 76: Hoare triple {26195#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 152)))} assume i <= n * 4; {26195#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 152)))} is VALID [2018-12-18 17:59:29,084 INFO L273 TraceCheckUtils]: 77: Hoare triple {26195#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 152)))} assume a[i] != 23;i := i + 4; {26196#(and (or (<= main_i 156) (<= main_n 44)) (or (< 44 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:29,085 INFO L273 TraceCheckUtils]: 78: Hoare triple {26196#(and (or (<= main_i 156) (<= main_n 44)) (or (< 44 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {26196#(and (or (<= main_i 156) (<= main_n 44)) (or (< 44 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:29,086 INFO L273 TraceCheckUtils]: 79: Hoare triple {26196#(and (or (<= main_i 156) (<= main_n 44)) (or (< 44 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {26197#(and (or (<= main_n 44) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,087 INFO L273 TraceCheckUtils]: 80: Hoare triple {26197#(and (or (<= main_n 44) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26197#(and (or (<= main_n 44) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,088 INFO L273 TraceCheckUtils]: 81: Hoare triple {26197#(and (or (<= main_n 44) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26198#(and (or (<= main_i 164) (<= main_n 44)) (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,089 INFO L273 TraceCheckUtils]: 82: Hoare triple {26198#(and (or (<= main_i 164) (<= main_n 44)) (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26198#(and (or (<= main_i 164) (<= main_n 44)) (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,090 INFO L273 TraceCheckUtils]: 83: Hoare triple {26198#(and (or (<= main_i 164) (<= main_n 44)) (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26199#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 168)))} is VALID [2018-12-18 17:59:29,091 INFO L273 TraceCheckUtils]: 84: Hoare triple {26199#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 168)))} assume i <= n * 4; {26199#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 168)))} is VALID [2018-12-18 17:59:29,092 INFO L273 TraceCheckUtils]: 85: Hoare triple {26199#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)) (or (<= main_n 44) (<= main_i 168)))} assume a[i] != 23;i := i + 4; {26200#(and (or (<= main_i 172) (<= main_n 44)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,093 INFO L273 TraceCheckUtils]: 86: Hoare triple {26200#(and (or (<= main_i 172) (<= main_n 44)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume i <= n * 4; {26200#(and (or (<= main_i 172) (<= main_n 44)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,094 INFO L273 TraceCheckUtils]: 87: Hoare triple {26200#(and (or (<= main_i 172) (<= main_n 44)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26201#(and (or (<= main_i 176) (<= main_n 44)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,095 INFO L273 TraceCheckUtils]: 88: Hoare triple {26201#(and (or (<= main_i 176) (<= main_n 44)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 44 main_n)))} assume i <= n * 4; {26202#(and (<= main_i 176) (or (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i))) (< 44 main_n)))} is VALID [2018-12-18 17:59:29,097 INFO L273 TraceCheckUtils]: 89: Hoare triple {26202#(and (<= main_i 176) (or (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i))) (< 44 main_n)))} assume a[i] != 23;i := i + 4; {26203#(and (<= main_i 180) (<= 45 main_n))} is VALID [2018-12-18 17:59:29,097 INFO L273 TraceCheckUtils]: 90: Hoare triple {26203#(and (<= main_i 180) (<= 45 main_n))} assume !(i <= n * 4); {26156#false} is VALID [2018-12-18 17:59:29,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:59:29,135 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:59:29,135 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:59:29,135 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:59:29,135 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:59:29,135 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:59:29,135 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:59:29,144 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-18 17:59:29,144 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-18 17:59:29,211 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 45 check-sat command(s) [2018-12-18 17:59:29,212 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:59:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:59:29,228 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:59:29,243 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:59:29,260 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:59:29,269 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:59:29,269 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:59:29,272 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:59:29,272 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_48]. (and (= (store v_main_a_48 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 17:59:29,272 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:59:32,547 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:59:32,549 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:59:32,555 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:59:32,555 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:59:32,558 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:59:32,558 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 180) (<= 176 .cse0) (= 23 (select main_a .cse0)) (not (= 23 (select main_a 176))))) [2018-12-18 17:59:32,558 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 176 .cse0)) (<= main_i 180) (<= 176 .cse0))) [2018-12-18 17:59:32,615 INFO L273 TraceCheckUtils]: 0: Hoare triple {26155#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {26207#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,615 INFO L273 TraceCheckUtils]: 1: Hoare triple {26207#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:59:32,616 INFO L273 TraceCheckUtils]: 2: Hoare triple {26211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {26211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:59:32,617 INFO L273 TraceCheckUtils]: 3: Hoare triple {26211#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {26218#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,618 INFO L273 TraceCheckUtils]: 4: Hoare triple {26218#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26218#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,618 INFO L273 TraceCheckUtils]: 5: Hoare triple {26218#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26225#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:59:32,619 INFO L273 TraceCheckUtils]: 6: Hoare triple {26225#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {26225#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:59:32,620 INFO L273 TraceCheckUtils]: 7: Hoare triple {26225#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {26232#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,620 INFO L273 TraceCheckUtils]: 8: Hoare triple {26232#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26232#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,621 INFO L273 TraceCheckUtils]: 9: Hoare triple {26232#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26239#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,622 INFO L273 TraceCheckUtils]: 10: Hoare triple {26239#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26239#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,622 INFO L273 TraceCheckUtils]: 11: Hoare triple {26239#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26246#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,623 INFO L273 TraceCheckUtils]: 12: Hoare triple {26246#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26246#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,624 INFO L273 TraceCheckUtils]: 13: Hoare triple {26246#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26253#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,624 INFO L273 TraceCheckUtils]: 14: Hoare triple {26253#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26253#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,625 INFO L273 TraceCheckUtils]: 15: Hoare triple {26253#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26260#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,626 INFO L273 TraceCheckUtils]: 16: Hoare triple {26260#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26260#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,627 INFO L273 TraceCheckUtils]: 17: Hoare triple {26260#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26267#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,627 INFO L273 TraceCheckUtils]: 18: Hoare triple {26267#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26267#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,628 INFO L273 TraceCheckUtils]: 19: Hoare triple {26267#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26274#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,629 INFO L273 TraceCheckUtils]: 20: Hoare triple {26274#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26274#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,629 INFO L273 TraceCheckUtils]: 21: Hoare triple {26274#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26281#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,630 INFO L273 TraceCheckUtils]: 22: Hoare triple {26281#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26281#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,631 INFO L273 TraceCheckUtils]: 23: Hoare triple {26281#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26288#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,631 INFO L273 TraceCheckUtils]: 24: Hoare triple {26288#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26288#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,632 INFO L273 TraceCheckUtils]: 25: Hoare triple {26288#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26295#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,633 INFO L273 TraceCheckUtils]: 26: Hoare triple {26295#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26295#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,634 INFO L273 TraceCheckUtils]: 27: Hoare triple {26295#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26302#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,634 INFO L273 TraceCheckUtils]: 28: Hoare triple {26302#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26302#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,635 INFO L273 TraceCheckUtils]: 29: Hoare triple {26302#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26309#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,636 INFO L273 TraceCheckUtils]: 30: Hoare triple {26309#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26309#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,636 INFO L273 TraceCheckUtils]: 31: Hoare triple {26309#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26316#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,637 INFO L273 TraceCheckUtils]: 32: Hoare triple {26316#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26316#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,638 INFO L273 TraceCheckUtils]: 33: Hoare triple {26316#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26323#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,638 INFO L273 TraceCheckUtils]: 34: Hoare triple {26323#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26323#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,639 INFO L273 TraceCheckUtils]: 35: Hoare triple {26323#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26330#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,640 INFO L273 TraceCheckUtils]: 36: Hoare triple {26330#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26330#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,640 INFO L273 TraceCheckUtils]: 37: Hoare triple {26330#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26337#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,641 INFO L273 TraceCheckUtils]: 38: Hoare triple {26337#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26337#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,642 INFO L273 TraceCheckUtils]: 39: Hoare triple {26337#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26344#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:59:32,642 INFO L273 TraceCheckUtils]: 40: Hoare triple {26344#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {26344#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:59:32,643 INFO L273 TraceCheckUtils]: 41: Hoare triple {26344#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {26351#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,644 INFO L273 TraceCheckUtils]: 42: Hoare triple {26351#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26351#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,645 INFO L273 TraceCheckUtils]: 43: Hoare triple {26351#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26358#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,645 INFO L273 TraceCheckUtils]: 44: Hoare triple {26358#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26358#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,646 INFO L273 TraceCheckUtils]: 45: Hoare triple {26358#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26365#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,647 INFO L273 TraceCheckUtils]: 46: Hoare triple {26365#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26365#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,647 INFO L273 TraceCheckUtils]: 47: Hoare triple {26365#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26372#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,648 INFO L273 TraceCheckUtils]: 48: Hoare triple {26372#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26372#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,649 INFO L273 TraceCheckUtils]: 49: Hoare triple {26372#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26379#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,649 INFO L273 TraceCheckUtils]: 50: Hoare triple {26379#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26379#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,650 INFO L273 TraceCheckUtils]: 51: Hoare triple {26379#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26386#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,651 INFO L273 TraceCheckUtils]: 52: Hoare triple {26386#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26386#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,651 INFO L273 TraceCheckUtils]: 53: Hoare triple {26386#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26393#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,652 INFO L273 TraceCheckUtils]: 54: Hoare triple {26393#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26393#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,653 INFO L273 TraceCheckUtils]: 55: Hoare triple {26393#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26400#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,654 INFO L273 TraceCheckUtils]: 56: Hoare triple {26400#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26400#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,654 INFO L273 TraceCheckUtils]: 57: Hoare triple {26400#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26407#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,655 INFO L273 TraceCheckUtils]: 58: Hoare triple {26407#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26407#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,656 INFO L273 TraceCheckUtils]: 59: Hoare triple {26407#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26414#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,656 INFO L273 TraceCheckUtils]: 60: Hoare triple {26414#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26414#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,657 INFO L273 TraceCheckUtils]: 61: Hoare triple {26414#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26421#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,658 INFO L273 TraceCheckUtils]: 62: Hoare triple {26421#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26421#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,659 INFO L273 TraceCheckUtils]: 63: Hoare triple {26421#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26428#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,659 INFO L273 TraceCheckUtils]: 64: Hoare triple {26428#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26428#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,660 INFO L273 TraceCheckUtils]: 65: Hoare triple {26428#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26435#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,661 INFO L273 TraceCheckUtils]: 66: Hoare triple {26435#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26435#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,661 INFO L273 TraceCheckUtils]: 67: Hoare triple {26435#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26442#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,662 INFO L273 TraceCheckUtils]: 68: Hoare triple {26442#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26442#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,663 INFO L273 TraceCheckUtils]: 69: Hoare triple {26442#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26449#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 17:59:32,664 INFO L273 TraceCheckUtils]: 70: Hoare triple {26449#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {26449#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 17:59:32,664 INFO L273 TraceCheckUtils]: 71: Hoare triple {26449#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {26456#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,665 INFO L273 TraceCheckUtils]: 72: Hoare triple {26456#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26456#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,666 INFO L273 TraceCheckUtils]: 73: Hoare triple {26456#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26463#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,667 INFO L273 TraceCheckUtils]: 74: Hoare triple {26463#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26463#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,667 INFO L273 TraceCheckUtils]: 75: Hoare triple {26463#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26470#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,668 INFO L273 TraceCheckUtils]: 76: Hoare triple {26470#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26470#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,669 INFO L273 TraceCheckUtils]: 77: Hoare triple {26470#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26477#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,669 INFO L273 TraceCheckUtils]: 78: Hoare triple {26477#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26477#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,670 INFO L273 TraceCheckUtils]: 79: Hoare triple {26477#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26484#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,671 INFO L273 TraceCheckUtils]: 80: Hoare triple {26484#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26484#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,671 INFO L273 TraceCheckUtils]: 81: Hoare triple {26484#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 17:59:32,672 INFO L273 TraceCheckUtils]: 82: Hoare triple {26491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {26491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 17:59:32,673 INFO L273 TraceCheckUtils]: 83: Hoare triple {26491#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {26498#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,673 INFO L273 TraceCheckUtils]: 84: Hoare triple {26498#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26498#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,674 INFO L273 TraceCheckUtils]: 85: Hoare triple {26498#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26505#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,675 INFO L273 TraceCheckUtils]: 86: Hoare triple {26505#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26505#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,675 INFO L273 TraceCheckUtils]: 87: Hoare triple {26505#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26512#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,676 INFO L273 TraceCheckUtils]: 88: Hoare triple {26512#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {26516#(and (= main_i 176) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:32,677 INFO L273 TraceCheckUtils]: 89: Hoare triple {26516#(and (= main_i 176) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {26203#(and (<= main_i 180) (<= 45 main_n))} is VALID [2018-12-18 17:59:32,678 INFO L273 TraceCheckUtils]: 90: Hoare triple {26203#(and (<= main_i 180) (<= 45 main_n))} assume !(i <= n * 4); {26156#false} is VALID [2018-12-18 17:59:32,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:59:32,696 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:59:38,392 WARN L181 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-12-18 17:59:38,952 INFO L273 TraceCheckUtils]: 90: Hoare triple {26523#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {26156#false} is VALID [2018-12-18 17:59:38,953 INFO L273 TraceCheckUtils]: 89: Hoare triple {26527#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {26523#(<= main_i (* 4 main_n))} is VALID [2018-12-18 17:59:38,953 INFO L273 TraceCheckUtils]: 88: Hoare triple {26531#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {26527#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:59:38,954 INFO L273 TraceCheckUtils]: 87: Hoare triple {26535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {26531#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 17:59:38,954 INFO L273 TraceCheckUtils]: 86: Hoare triple {26535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {26535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:59:38,955 INFO L273 TraceCheckUtils]: 85: Hoare triple {26542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {26535#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 17:59:38,955 INFO L273 TraceCheckUtils]: 84: Hoare triple {26542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {26542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:59:38,956 INFO L273 TraceCheckUtils]: 83: Hoare triple {26549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {26542#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 17:59:38,957 INFO L273 TraceCheckUtils]: 82: Hoare triple {26549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {26549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:59:38,958 INFO L273 TraceCheckUtils]: 81: Hoare triple {26556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {26549#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 17:59:38,959 INFO L273 TraceCheckUtils]: 80: Hoare triple {26556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {26556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:59:38,960 INFO L273 TraceCheckUtils]: 79: Hoare triple {26563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26556#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 17:59:38,960 INFO L273 TraceCheckUtils]: 78: Hoare triple {26563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {26563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,961 INFO L273 TraceCheckUtils]: 77: Hoare triple {26570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {26563#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,962 INFO L273 TraceCheckUtils]: 76: Hoare triple {26570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {26570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:59:38,963 INFO L273 TraceCheckUtils]: 75: Hoare triple {26577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26570#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 17:59:38,963 INFO L273 TraceCheckUtils]: 74: Hoare triple {26577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {26577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,964 INFO L273 TraceCheckUtils]: 73: Hoare triple {26584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26577#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,965 INFO L273 TraceCheckUtils]: 72: Hoare triple {26584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {26584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,966 INFO L273 TraceCheckUtils]: 71: Hoare triple {26591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26584#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,966 INFO L273 TraceCheckUtils]: 70: Hoare triple {26591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {26591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,967 INFO L273 TraceCheckUtils]: 69: Hoare triple {26598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {26591#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,968 INFO L273 TraceCheckUtils]: 68: Hoare triple {26598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {26598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:59:38,969 INFO L273 TraceCheckUtils]: 67: Hoare triple {26605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26598#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 17:59:38,969 INFO L273 TraceCheckUtils]: 66: Hoare triple {26605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {26605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,971 INFO L273 TraceCheckUtils]: 65: Hoare triple {26612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26605#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,971 INFO L273 TraceCheckUtils]: 64: Hoare triple {26612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {26612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,972 INFO L273 TraceCheckUtils]: 63: Hoare triple {26619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {26612#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,973 INFO L273 TraceCheckUtils]: 62: Hoare triple {26619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {26619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:59:38,974 INFO L273 TraceCheckUtils]: 61: Hoare triple {26626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26619#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 17:59:38,974 INFO L273 TraceCheckUtils]: 60: Hoare triple {26626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {26626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,975 INFO L273 TraceCheckUtils]: 59: Hoare triple {26633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {26626#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,976 INFO L273 TraceCheckUtils]: 58: Hoare triple {26633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {26633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:59:38,977 INFO L273 TraceCheckUtils]: 57: Hoare triple {26640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {26633#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 17:59:38,977 INFO L273 TraceCheckUtils]: 56: Hoare triple {26640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {26640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:59:38,978 INFO L273 TraceCheckUtils]: 55: Hoare triple {26647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {26640#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 17:59:38,979 INFO L273 TraceCheckUtils]: 54: Hoare triple {26647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {26647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:59:38,980 INFO L273 TraceCheckUtils]: 53: Hoare triple {26654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {26647#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 17:59:38,980 INFO L273 TraceCheckUtils]: 52: Hoare triple {26654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {26654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:59:38,981 INFO L273 TraceCheckUtils]: 51: Hoare triple {26661#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {26654#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 17:59:38,982 INFO L273 TraceCheckUtils]: 50: Hoare triple {26661#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {26661#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:59:38,983 INFO L273 TraceCheckUtils]: 49: Hoare triple {26668#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {26661#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 17:59:38,983 INFO L273 TraceCheckUtils]: 48: Hoare triple {26668#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {26668#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:59:38,985 INFO L273 TraceCheckUtils]: 47: Hoare triple {26675#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26668#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 17:59:38,985 INFO L273 TraceCheckUtils]: 46: Hoare triple {26675#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {26675#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,986 INFO L273 TraceCheckUtils]: 45: Hoare triple {26682#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26675#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,987 INFO L273 TraceCheckUtils]: 44: Hoare triple {26682#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {26682#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,988 INFO L273 TraceCheckUtils]: 43: Hoare triple {26689#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26682#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,988 INFO L273 TraceCheckUtils]: 42: Hoare triple {26689#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {26689#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,989 INFO L273 TraceCheckUtils]: 41: Hoare triple {26696#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {26689#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,990 INFO L273 TraceCheckUtils]: 40: Hoare triple {26696#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {26696#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:59:38,991 INFO L273 TraceCheckUtils]: 39: Hoare triple {26703#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26696#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 17:59:38,991 INFO L273 TraceCheckUtils]: 38: Hoare triple {26703#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {26703#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,992 INFO L273 TraceCheckUtils]: 37: Hoare triple {26710#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {26703#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,993 INFO L273 TraceCheckUtils]: 36: Hoare triple {26710#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {26710#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:59:38,994 INFO L273 TraceCheckUtils]: 35: Hoare triple {26717#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {26710#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 17:59:38,994 INFO L273 TraceCheckUtils]: 34: Hoare triple {26717#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {26717#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:59:38,995 INFO L273 TraceCheckUtils]: 33: Hoare triple {26724#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {26717#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 17:59:38,996 INFO L273 TraceCheckUtils]: 32: Hoare triple {26724#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {26724#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:59:38,997 INFO L273 TraceCheckUtils]: 31: Hoare triple {26731#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26724#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 17:59:38,997 INFO L273 TraceCheckUtils]: 30: Hoare triple {26731#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {26731#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,999 INFO L273 TraceCheckUtils]: 29: Hoare triple {26738#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26731#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 17:59:38,999 INFO L273 TraceCheckUtils]: 28: Hoare triple {26738#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {26738#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:59:39,000 INFO L273 TraceCheckUtils]: 27: Hoare triple {26745#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {26738#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 17:59:39,001 INFO L273 TraceCheckUtils]: 26: Hoare triple {26745#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {26745#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:59:39,002 INFO L273 TraceCheckUtils]: 25: Hoare triple {26752#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26745#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 17:59:39,002 INFO L273 TraceCheckUtils]: 24: Hoare triple {26752#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {26752#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:59:39,003 INFO L273 TraceCheckUtils]: 23: Hoare triple {26759#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {26752#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 17:59:39,004 INFO L273 TraceCheckUtils]: 22: Hoare triple {26759#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {26759#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 17:59:39,005 INFO L273 TraceCheckUtils]: 21: Hoare triple {26766#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {26759#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 17:59:39,005 INFO L273 TraceCheckUtils]: 20: Hoare triple {26766#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {26766#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 17:59:39,006 INFO L273 TraceCheckUtils]: 19: Hoare triple {26773#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {26766#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 17:59:39,007 INFO L273 TraceCheckUtils]: 18: Hoare triple {26773#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {26773#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 17:59:39,008 INFO L273 TraceCheckUtils]: 17: Hoare triple {26780#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {26773#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 17:59:39,008 INFO L273 TraceCheckUtils]: 16: Hoare triple {26780#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {26780#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 17:59:39,009 INFO L273 TraceCheckUtils]: 15: Hoare triple {26787#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {26780#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 17:59:39,010 INFO L273 TraceCheckUtils]: 14: Hoare triple {26787#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {26787#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 17:59:39,011 INFO L273 TraceCheckUtils]: 13: Hoare triple {26794#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {26787#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 17:59:39,012 INFO L273 TraceCheckUtils]: 12: Hoare triple {26794#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {26794#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 17:59:39,013 INFO L273 TraceCheckUtils]: 11: Hoare triple {26801#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {26794#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 17:59:39,013 INFO L273 TraceCheckUtils]: 10: Hoare triple {26801#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {26801#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 17:59:39,014 INFO L273 TraceCheckUtils]: 9: Hoare triple {26808#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {26801#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 17:59:39,015 INFO L273 TraceCheckUtils]: 8: Hoare triple {26808#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {26808#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 17:59:39,016 INFO L273 TraceCheckUtils]: 7: Hoare triple {26815#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {26808#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 17:59:39,016 INFO L273 TraceCheckUtils]: 6: Hoare triple {26815#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {26815#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 17:59:39,017 INFO L273 TraceCheckUtils]: 5: Hoare triple {26822#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26815#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 17:59:39,018 INFO L273 TraceCheckUtils]: 4: Hoare triple {26822#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {26822#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2018-12-18 17:59:39,019 INFO L273 TraceCheckUtils]: 3: Hoare triple {26829#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {26822#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2018-12-18 17:59:39,029 INFO L273 TraceCheckUtils]: 2: Hoare triple {26829#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {26829#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2018-12-18 17:59:39,029 INFO L273 TraceCheckUtils]: 1: Hoare triple {26836#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {26829#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2018-12-18 17:59:39,030 INFO L273 TraceCheckUtils]: 0: Hoare triple {26155#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {26836#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2018-12-18 17:59:39,060 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:59:39,078 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:59:39,078 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 140 [2018-12-18 17:59:39,078 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:59:39,079 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 91 [2018-12-18 17:59:39,079 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:59:39,079 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 95 states. [2018-12-18 17:59:39,294 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 181 edges. 181 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:59:39,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 95 states [2018-12-18 17:59:39,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2018-12-18 17:59:39,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2452, Invalid=17570, Unknown=0, NotChecked=0, Total=20022 [2018-12-18 17:59:39,295 INFO L87 Difference]: Start difference. First operand 92 states and 92 transitions. Second operand 95 states. [2018-12-18 17:59:52,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:59:52,572 INFO L93 Difference]: Finished difference Result 96 states and 96 transitions. [2018-12-18 17:59:52,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-12-18 17:59:52,573 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 91 [2018-12-18 17:59:52,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:59:52,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-12-18 17:59:52,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 96 transitions. [2018-12-18 17:59:52,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-12-18 17:59:52,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 96 transitions. [2018-12-18 17:59:52,575 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 49 states and 96 transitions. [2018-12-18 17:59:52,675 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 96 edges. 96 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:59:52,677 INFO L225 Difference]: With dead ends: 96 [2018-12-18 17:59:52,677 INFO L226 Difference]: Without dead ends: 95 [2018-12-18 17:59:52,678 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4508 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=2452, Invalid=17570, Unknown=0, NotChecked=0, Total=20022 [2018-12-18 17:59:52,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-12-18 17:59:52,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 94. [2018-12-18 17:59:52,773 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:59:52,773 INFO L82 GeneralOperation]: Start isEquivalent. First operand 95 states. Second operand 94 states. [2018-12-18 17:59:52,773 INFO L74 IsIncluded]: Start isIncluded. First operand 95 states. Second operand 94 states. [2018-12-18 17:59:52,773 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 94 states. [2018-12-18 17:59:52,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:59:52,775 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2018-12-18 17:59:52,775 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2018-12-18 17:59:52,775 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:59:52,775 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:59:52,775 INFO L74 IsIncluded]: Start isIncluded. First operand 94 states. Second operand 95 states. [2018-12-18 17:59:52,776 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 95 states. [2018-12-18 17:59:52,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:59:52,776 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2018-12-18 17:59:52,777 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2018-12-18 17:59:52,777 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:59:52,777 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:59:52,777 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:59:52,777 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:59:52,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-12-18 17:59:52,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 94 transitions. [2018-12-18 17:59:52,779 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 94 transitions. Word has length 91 [2018-12-18 17:59:52,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:59:52,779 INFO L480 AbstractCegarLoop]: Abstraction has 94 states and 94 transitions. [2018-12-18 17:59:52,779 INFO L481 AbstractCegarLoop]: Interpolant automaton has 95 states. [2018-12-18 17:59:52,779 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 94 transitions. [2018-12-18 17:59:52,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-18 17:59:52,780 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:59:52,780 INFO L402 BasicCegarLoop]: trace histogram [46, 45, 1, 1] [2018-12-18 17:59:52,780 INFO L423 AbstractCegarLoop]: === Iteration 46 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:59:52,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:59:52,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1904524666, now seen corresponding path program 45 times [2018-12-18 17:59:52,780 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:59:52,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:59:52,781 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 17:59:52,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:59:52,782 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:59:52,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:59:53,162 WARN L181 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-12-18 17:59:55,683 INFO L273 TraceCheckUtils]: 0: Hoare triple {27312#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {27314#(and (or (<= main_n 45) (<= main_i 0)) (or (< 45 main_n) (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,684 INFO L273 TraceCheckUtils]: 1: Hoare triple {27314#(and (or (<= main_n 45) (<= main_i 0)) (or (< 45 main_n) (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27315#(and (or (<= main_n 45) (<= main_i 4)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2018-12-18 17:59:55,685 INFO L273 TraceCheckUtils]: 2: Hoare triple {27315#(and (or (<= main_n 45) (<= main_i 4)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {27315#(and (or (<= main_n 45) (<= main_i 4)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2018-12-18 17:59:55,686 INFO L273 TraceCheckUtils]: 3: Hoare triple {27315#(and (or (<= main_n 45) (<= main_i 4)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {27316#(and (or (<= main_n 45) (<= main_i 8)) (or (< 45 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,687 INFO L273 TraceCheckUtils]: 4: Hoare triple {27316#(and (or (<= main_n 45) (<= main_i 8)) (or (< 45 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27316#(and (or (<= main_n 45) (<= main_i 8)) (or (< 45 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,688 INFO L273 TraceCheckUtils]: 5: Hoare triple {27316#(and (or (<= main_n 45) (<= main_i 8)) (or (< 45 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27317#(and (or (< 45 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 12)))} is VALID [2018-12-18 17:59:55,688 INFO L273 TraceCheckUtils]: 6: Hoare triple {27317#(and (or (< 45 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 12)))} assume i <= n * 4; {27317#(and (or (< 45 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 12)))} is VALID [2018-12-18 17:59:55,689 INFO L273 TraceCheckUtils]: 7: Hoare triple {27317#(and (or (< 45 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {27318#(and (or (< 45 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 16)))} is VALID [2018-12-18 17:59:55,690 INFO L273 TraceCheckUtils]: 8: Hoare triple {27318#(and (or (< 45 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 16)))} assume i <= n * 4; {27318#(and (or (< 45 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 16)))} is VALID [2018-12-18 17:59:55,691 INFO L273 TraceCheckUtils]: 9: Hoare triple {27318#(and (or (< 45 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {27319#(and (or (< 45 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 20)))} is VALID [2018-12-18 17:59:55,692 INFO L273 TraceCheckUtils]: 10: Hoare triple {27319#(and (or (< 45 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 20)))} assume i <= n * 4; {27319#(and (or (< 45 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 20)))} is VALID [2018-12-18 17:59:55,693 INFO L273 TraceCheckUtils]: 11: Hoare triple {27319#(and (or (< 45 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 20)))} assume a[i] != 23;i := i + 4; {27320#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 24)))} is VALID [2018-12-18 17:59:55,694 INFO L273 TraceCheckUtils]: 12: Hoare triple {27320#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 24)))} assume i <= n * 4; {27320#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 24)))} is VALID [2018-12-18 17:59:55,695 INFO L273 TraceCheckUtils]: 13: Hoare triple {27320#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {27321#(and (or (<= main_n 45) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)))} is VALID [2018-12-18 17:59:55,695 INFO L273 TraceCheckUtils]: 14: Hoare triple {27321#(and (or (<= main_n 45) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)))} assume i <= n * 4; {27321#(and (or (<= main_n 45) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)))} is VALID [2018-12-18 17:59:55,696 INFO L273 TraceCheckUtils]: 15: Hoare triple {27321#(and (or (<= main_n 45) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)))} assume a[i] != 23;i := i + 4; {27322#(and (or (<= main_i 32) (<= main_n 45)) (or (< 45 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,697 INFO L273 TraceCheckUtils]: 16: Hoare triple {27322#(and (or (<= main_i 32) (<= main_n 45)) (or (< 45 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27322#(and (or (<= main_i 32) (<= main_n 45)) (or (< 45 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,698 INFO L273 TraceCheckUtils]: 17: Hoare triple {27322#(and (or (<= main_i 32) (<= main_n 45)) (or (< 45 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27323#(and (or (<= main_i 36) (<= main_n 45)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))))} is VALID [2018-12-18 17:59:55,699 INFO L273 TraceCheckUtils]: 18: Hoare triple {27323#(and (or (<= main_i 36) (<= main_n 45)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))))} assume i <= n * 4; {27323#(and (or (<= main_i 36) (<= main_n 45)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))))} is VALID [2018-12-18 17:59:55,700 INFO L273 TraceCheckUtils]: 19: Hoare triple {27323#(and (or (<= main_i 36) (<= main_n 45)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i))))} assume a[i] != 23;i := i + 4; {27324#(and (or (< 45 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 40)))} is VALID [2018-12-18 17:59:55,701 INFO L273 TraceCheckUtils]: 20: Hoare triple {27324#(and (or (< 45 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 40)))} assume i <= n * 4; {27324#(and (or (< 45 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 40)))} is VALID [2018-12-18 17:59:55,702 INFO L273 TraceCheckUtils]: 21: Hoare triple {27324#(and (or (< 45 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 40)))} assume a[i] != 23;i := i + 4; {27325#(and (or (<= main_n 45) (<= main_i 44)) (or (< 45 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,702 INFO L273 TraceCheckUtils]: 22: Hoare triple {27325#(and (or (<= main_n 45) (<= main_i 44)) (or (< 45 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27325#(and (or (<= main_n 45) (<= main_i 44)) (or (< 45 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,703 INFO L273 TraceCheckUtils]: 23: Hoare triple {27325#(and (or (<= main_n 45) (<= main_i 44)) (or (< 45 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27326#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 48)))} is VALID [2018-12-18 17:59:55,704 INFO L273 TraceCheckUtils]: 24: Hoare triple {27326#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 48)))} assume i <= n * 4; {27326#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 48)))} is VALID [2018-12-18 17:59:55,705 INFO L273 TraceCheckUtils]: 25: Hoare triple {27326#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {27327#(and (or (< 45 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 45)))} is VALID [2018-12-18 17:59:55,706 INFO L273 TraceCheckUtils]: 26: Hoare triple {27327#(and (or (< 45 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 45)))} assume i <= n * 4; {27327#(and (or (< 45 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 45)))} is VALID [2018-12-18 17:59:55,707 INFO L273 TraceCheckUtils]: 27: Hoare triple {27327#(and (or (< 45 main_n) (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 52) (<= main_n 45)))} assume a[i] != 23;i := i + 4; {27328#(and (or (< 45 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 56)))} is VALID [2018-12-18 17:59:55,708 INFO L273 TraceCheckUtils]: 28: Hoare triple {27328#(and (or (< 45 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 56)))} assume i <= n * 4; {27328#(and (or (< 45 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 56)))} is VALID [2018-12-18 17:59:55,709 INFO L273 TraceCheckUtils]: 29: Hoare triple {27328#(and (or (< 45 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 56)))} assume a[i] != 23;i := i + 4; {27329#(and (or (<= main_n 45) (<= main_i 60)) (or (< 45 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,709 INFO L273 TraceCheckUtils]: 30: Hoare triple {27329#(and (or (<= main_n 45) (<= main_i 60)) (or (< 45 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27329#(and (or (<= main_n 45) (<= main_i 60)) (or (< 45 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,710 INFO L273 TraceCheckUtils]: 31: Hoare triple {27329#(and (or (<= main_n 45) (<= main_i 60)) (or (< 45 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27330#(and (or (<= main_n 45) (<= main_i 64)) (or (< 45 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,711 INFO L273 TraceCheckUtils]: 32: Hoare triple {27330#(and (or (<= main_n 45) (<= main_i 64)) (or (< 45 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27330#(and (or (<= main_n 45) (<= main_i 64)) (or (< 45 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,712 INFO L273 TraceCheckUtils]: 33: Hoare triple {27330#(and (or (<= main_n 45) (<= main_i 64)) (or (< 45 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27331#(and (or (< 45 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 68)))} is VALID [2018-12-18 17:59:55,713 INFO L273 TraceCheckUtils]: 34: Hoare triple {27331#(and (or (< 45 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 68)))} assume i <= n * 4; {27331#(and (or (< 45 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 68)))} is VALID [2018-12-18 17:59:55,714 INFO L273 TraceCheckUtils]: 35: Hoare triple {27331#(and (or (< 45 main_n) (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 68)))} assume a[i] != 23;i := i + 4; {27332#(and (or (<= main_n 45) (<= main_i 72)) (or (< 45 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,715 INFO L273 TraceCheckUtils]: 36: Hoare triple {27332#(and (or (<= main_n 45) (<= main_i 72)) (or (< 45 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27332#(and (or (<= main_n 45) (<= main_i 72)) (or (< 45 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,716 INFO L273 TraceCheckUtils]: 37: Hoare triple {27332#(and (or (<= main_n 45) (<= main_i 72)) (or (< 45 main_n) (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27333#(and (or (<= main_i 76) (<= main_n 45)) (or (< 45 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,717 INFO L273 TraceCheckUtils]: 38: Hoare triple {27333#(and (or (<= main_i 76) (<= main_n 45)) (or (< 45 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27333#(and (or (<= main_i 76) (<= main_n 45)) (or (< 45 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,718 INFO L273 TraceCheckUtils]: 39: Hoare triple {27333#(and (or (<= main_i 76) (<= main_n 45)) (or (< 45 main_n) (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27334#(and (or (< 45 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 80)))} is VALID [2018-12-18 17:59:55,718 INFO L273 TraceCheckUtils]: 40: Hoare triple {27334#(and (or (< 45 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 80)))} assume i <= n * 4; {27334#(and (or (< 45 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 80)))} is VALID [2018-12-18 17:59:55,719 INFO L273 TraceCheckUtils]: 41: Hoare triple {27334#(and (or (< 45 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {27335#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 45) (<= main_i 84)))} is VALID [2018-12-18 17:59:55,720 INFO L273 TraceCheckUtils]: 42: Hoare triple {27335#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 45) (<= main_i 84)))} assume i <= n * 4; {27335#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 45) (<= main_i 84)))} is VALID [2018-12-18 17:59:55,721 INFO L273 TraceCheckUtils]: 43: Hoare triple {27335#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i))) (or (<= main_n 45) (<= main_i 84)))} assume a[i] != 23;i := i + 4; {27336#(and (or (<= main_i 88) (<= main_n 45)) (or (< 45 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,722 INFO L273 TraceCheckUtils]: 44: Hoare triple {27336#(and (or (<= main_i 88) (<= main_n 45)) (or (< 45 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27336#(and (or (<= main_i 88) (<= main_n 45)) (or (< 45 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,723 INFO L273 TraceCheckUtils]: 45: Hoare triple {27336#(and (or (<= main_i 88) (<= main_n 45)) (or (< 45 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27337#(and (or (<= main_i 92) (<= main_n 45)) (or (< 45 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,724 INFO L273 TraceCheckUtils]: 46: Hoare triple {27337#(and (or (<= main_i 92) (<= main_n 45)) (or (< 45 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27337#(and (or (<= main_i 92) (<= main_n 45)) (or (< 45 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,725 INFO L273 TraceCheckUtils]: 47: Hoare triple {27337#(and (or (<= main_i 92) (<= main_n 45)) (or (< 45 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27338#(and (or (< 45 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 45)))} is VALID [2018-12-18 17:59:55,725 INFO L273 TraceCheckUtils]: 48: Hoare triple {27338#(and (or (< 45 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 45)))} assume i <= n * 4; {27338#(and (or (< 45 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 45)))} is VALID [2018-12-18 17:59:55,726 INFO L273 TraceCheckUtils]: 49: Hoare triple {27338#(and (or (< 45 main_n) (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 96) (<= main_n 45)))} assume a[i] != 23;i := i + 4; {27339#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 100)))} is VALID [2018-12-18 17:59:55,727 INFO L273 TraceCheckUtils]: 50: Hoare triple {27339#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 100)))} assume i <= n * 4; {27339#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 100)))} is VALID [2018-12-18 17:59:55,728 INFO L273 TraceCheckUtils]: 51: Hoare triple {27339#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 100)))} assume a[i] != 23;i := i + 4; {27340#(and (or (<= main_i 104) (<= main_n 45)) (or (< 45 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,729 INFO L273 TraceCheckUtils]: 52: Hoare triple {27340#(and (or (<= main_i 104) (<= main_n 45)) (or (< 45 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27340#(and (or (<= main_i 104) (<= main_n 45)) (or (< 45 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,730 INFO L273 TraceCheckUtils]: 53: Hoare triple {27340#(and (or (<= main_i 104) (<= main_n 45)) (or (< 45 main_n) (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27341#(and (or (< 45 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 108)))} is VALID [2018-12-18 17:59:55,731 INFO L273 TraceCheckUtils]: 54: Hoare triple {27341#(and (or (< 45 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 108)))} assume i <= n * 4; {27341#(and (or (< 45 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 108)))} is VALID [2018-12-18 17:59:55,732 INFO L273 TraceCheckUtils]: 55: Hoare triple {27341#(and (or (< 45 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {27342#(and (or (<= main_n 45) (<= main_i 112)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2018-12-18 17:59:55,732 INFO L273 TraceCheckUtils]: 56: Hoare triple {27342#(and (or (<= main_n 45) (<= main_i 112)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume i <= n * 4; {27342#(and (or (<= main_n 45) (<= main_i 112)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2018-12-18 17:59:55,733 INFO L273 TraceCheckUtils]: 57: Hoare triple {27342#(and (or (<= main_n 45) (<= main_i 112)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume a[i] != 23;i := i + 4; {27343#(and (or (< 45 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 116)))} is VALID [2018-12-18 17:59:55,734 INFO L273 TraceCheckUtils]: 58: Hoare triple {27343#(and (or (< 45 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 116)))} assume i <= n * 4; {27343#(and (or (< 45 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 116)))} is VALID [2018-12-18 17:59:55,735 INFO L273 TraceCheckUtils]: 59: Hoare triple {27343#(and (or (< 45 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 116)))} assume a[i] != 23;i := i + 4; {27344#(and (or (< 45 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 120)))} is VALID [2018-12-18 17:59:55,736 INFO L273 TraceCheckUtils]: 60: Hoare triple {27344#(and (or (< 45 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 120)))} assume i <= n * 4; {27344#(and (or (< 45 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 120)))} is VALID [2018-12-18 17:59:55,737 INFO L273 TraceCheckUtils]: 61: Hoare triple {27344#(and (or (< 45 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 120)))} assume a[i] != 23;i := i + 4; {27345#(and (or (< 45 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 124)))} is VALID [2018-12-18 17:59:55,738 INFO L273 TraceCheckUtils]: 62: Hoare triple {27345#(and (or (< 45 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 124)))} assume i <= n * 4; {27345#(and (or (< 45 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 124)))} is VALID [2018-12-18 17:59:55,739 INFO L273 TraceCheckUtils]: 63: Hoare triple {27345#(and (or (< 45 main_n) (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 124)))} assume a[i] != 23;i := i + 4; {27346#(and (or (<= main_n 45) (<= main_i 128)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2018-12-18 17:59:55,739 INFO L273 TraceCheckUtils]: 64: Hoare triple {27346#(and (or (<= main_n 45) (<= main_i 128)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume i <= n * 4; {27346#(and (or (<= main_n 45) (<= main_i 128)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2018-12-18 17:59:55,740 INFO L273 TraceCheckUtils]: 65: Hoare triple {27346#(and (or (<= main_n 45) (<= main_i 128)) (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume a[i] != 23;i := i + 4; {27347#(and (or (< 45 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 132)))} is VALID [2018-12-18 17:59:55,741 INFO L273 TraceCheckUtils]: 66: Hoare triple {27347#(and (or (< 45 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 132)))} assume i <= n * 4; {27347#(and (or (< 45 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 132)))} is VALID [2018-12-18 17:59:55,742 INFO L273 TraceCheckUtils]: 67: Hoare triple {27347#(and (or (< 45 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 132)))} assume a[i] != 23;i := i + 4; {27348#(and (or (<= main_i 136) (<= main_n 45)) (or (< 45 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,743 INFO L273 TraceCheckUtils]: 68: Hoare triple {27348#(and (or (<= main_i 136) (<= main_n 45)) (or (< 45 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27348#(and (or (<= main_i 136) (<= main_n 45)) (or (< 45 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,744 INFO L273 TraceCheckUtils]: 69: Hoare triple {27348#(and (or (<= main_i 136) (<= main_n 45)) (or (< 45 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27349#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 45) (<= main_i 140)))} is VALID [2018-12-18 17:59:55,745 INFO L273 TraceCheckUtils]: 70: Hoare triple {27349#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 45) (<= main_i 140)))} assume i <= n * 4; {27349#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 45) (<= main_i 140)))} is VALID [2018-12-18 17:59:55,746 INFO L273 TraceCheckUtils]: 71: Hoare triple {27349#(and (or (< 45 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 45) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {27350#(and (or (<= main_n 45) (<= main_i 144)) (or (< 45 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,746 INFO L273 TraceCheckUtils]: 72: Hoare triple {27350#(and (or (<= main_n 45) (<= main_i 144)) (or (< 45 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27350#(and (or (<= main_n 45) (<= main_i 144)) (or (< 45 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,747 INFO L273 TraceCheckUtils]: 73: Hoare triple {27350#(and (or (<= main_n 45) (<= main_i 144)) (or (< 45 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27351#(and (or (<= main_n 45) (<= main_i 148)) (or (< 45 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,748 INFO L273 TraceCheckUtils]: 74: Hoare triple {27351#(and (or (<= main_n 45) (<= main_i 148)) (or (< 45 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27351#(and (or (<= main_n 45) (<= main_i 148)) (or (< 45 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,749 INFO L273 TraceCheckUtils]: 75: Hoare triple {27351#(and (or (<= main_n 45) (<= main_i 148)) (or (< 45 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27352#(and (or (< 45 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 152)))} is VALID [2018-12-18 17:59:55,750 INFO L273 TraceCheckUtils]: 76: Hoare triple {27352#(and (or (< 45 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 152)))} assume i <= n * 4; {27352#(and (or (< 45 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 152)))} is VALID [2018-12-18 17:59:55,751 INFO L273 TraceCheckUtils]: 77: Hoare triple {27352#(and (or (< 45 main_n) (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 152)))} assume a[i] != 23;i := i + 4; {27353#(and (or (< 45 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 156)))} is VALID [2018-12-18 17:59:55,752 INFO L273 TraceCheckUtils]: 78: Hoare triple {27353#(and (or (< 45 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 156)))} assume i <= n * 4; {27353#(and (or (< 45 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 156)))} is VALID [2018-12-18 17:59:55,753 INFO L273 TraceCheckUtils]: 79: Hoare triple {27353#(and (or (< 45 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 156)))} assume a[i] != 23;i := i + 4; {27354#(and (or (< 45 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 160)))} is VALID [2018-12-18 17:59:55,753 INFO L273 TraceCheckUtils]: 80: Hoare triple {27354#(and (or (< 45 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 160)))} assume i <= n * 4; {27354#(and (or (< 45 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 160)))} is VALID [2018-12-18 17:59:55,754 INFO L273 TraceCheckUtils]: 81: Hoare triple {27354#(and (or (< 45 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 160)))} assume a[i] != 23;i := i + 4; {27355#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 164)))} is VALID [2018-12-18 17:59:55,755 INFO L273 TraceCheckUtils]: 82: Hoare triple {27355#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 164)))} assume i <= n * 4; {27355#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 164)))} is VALID [2018-12-18 17:59:55,756 INFO L273 TraceCheckUtils]: 83: Hoare triple {27355#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 45 main_n)) (or (<= main_n 45) (<= main_i 164)))} assume a[i] != 23;i := i + 4; {27356#(and (or (< 45 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 168)))} is VALID [2018-12-18 17:59:55,757 INFO L273 TraceCheckUtils]: 84: Hoare triple {27356#(and (or (< 45 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 168)))} assume i <= n * 4; {27356#(and (or (< 45 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 168)))} is VALID [2018-12-18 17:59:55,758 INFO L273 TraceCheckUtils]: 85: Hoare triple {27356#(and (or (< 45 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 45) (<= main_i 168)))} assume a[i] != 23;i := i + 4; {27357#(and (or (<= main_n 45) (<= main_i 172)) (or (< 45 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,759 INFO L273 TraceCheckUtils]: 86: Hoare triple {27357#(and (or (<= main_n 45) (<= main_i 172)) (or (< 45 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {27357#(and (or (<= main_n 45) (<= main_i 172)) (or (< 45 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 17:59:55,760 INFO L273 TraceCheckUtils]: 87: Hoare triple {27357#(and (or (<= main_n 45) (<= main_i 172)) (or (< 45 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {27358#(and (or (< 45 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 45)))} is VALID [2018-12-18 17:59:55,760 INFO L273 TraceCheckUtils]: 88: Hoare triple {27358#(and (or (< 45 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 45)))} assume i <= n * 4; {27358#(and (or (< 45 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 45)))} is VALID [2018-12-18 17:59:55,762 INFO L273 TraceCheckUtils]: 89: Hoare triple {27358#(and (or (< 45 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 45)))} assume a[i] != 23;i := i + 4; {27359#(and (or (<= main_n 45) (<= main_i 180)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 45 main_n)))} is VALID [2018-12-18 17:59:55,763 INFO L273 TraceCheckUtils]: 90: Hoare triple {27359#(and (or (<= main_n 45) (<= main_i 180)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 45 main_n)))} assume i <= n * 4; {27360#(and (or (< 45 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 180))} is VALID [2018-12-18 17:59:55,764 INFO L273 TraceCheckUtils]: 91: Hoare triple {27360#(and (or (< 45 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 180))} assume a[i] != 23;i := i + 4; {27361#(and (<= main_i 184) (<= 46 main_n))} is VALID [2018-12-18 17:59:55,764 INFO L273 TraceCheckUtils]: 92: Hoare triple {27361#(and (<= main_i 184) (<= 46 main_n))} assume !(i <= n * 4); {27313#false} is VALID [2018-12-18 17:59:55,803 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 2070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:59:55,803 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:59:55,803 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:59:55,803 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 17:59:55,803 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 17:59:55,804 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:59:55,804 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:59:55,815 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-18 17:59:55,815 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-18 17:59:55,841 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-18 17:59:55,841 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 17:59:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:59:55,859 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:59:55,868 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:59:55,870 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:59:55,880 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:59:55,880 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 17:59:55,882 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:59:55,882 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_49]. (and (= main_a (store v_main_a_49 (* 4 main_n) 23)) (= main_i 0)) [2018-12-18 17:59:55,882 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 17:59:59,440 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 17:59:59,442 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:59:59,448 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:59:59,448 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 17:59:59,451 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:59:59,451 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 180 .cse0) (<= main_i 184) (not (= 23 (select main_a 180))) (= 23 (select main_a .cse0)))) [2018-12-18 17:59:59,451 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 180 .cse0) (<= main_i 184) (not (= 180 .cse0)))) [2018-12-18 17:59:59,509 INFO L273 TraceCheckUtils]: 0: Hoare triple {27312#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {27365#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,509 INFO L273 TraceCheckUtils]: 1: Hoare triple {27365#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:59:59,510 INFO L273 TraceCheckUtils]: 2: Hoare triple {27369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {27369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 17:59:59,510 INFO L273 TraceCheckUtils]: 3: Hoare triple {27369#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {27376#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,511 INFO L273 TraceCheckUtils]: 4: Hoare triple {27376#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27376#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,511 INFO L273 TraceCheckUtils]: 5: Hoare triple {27376#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27383#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:59:59,511 INFO L273 TraceCheckUtils]: 6: Hoare triple {27383#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {27383#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 17:59:59,512 INFO L273 TraceCheckUtils]: 7: Hoare triple {27383#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {27390#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,513 INFO L273 TraceCheckUtils]: 8: Hoare triple {27390#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27390#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,513 INFO L273 TraceCheckUtils]: 9: Hoare triple {27390#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27397#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,514 INFO L273 TraceCheckUtils]: 10: Hoare triple {27397#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27397#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,515 INFO L273 TraceCheckUtils]: 11: Hoare triple {27397#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27404#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,515 INFO L273 TraceCheckUtils]: 12: Hoare triple {27404#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27404#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,516 INFO L273 TraceCheckUtils]: 13: Hoare triple {27404#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27411#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,517 INFO L273 TraceCheckUtils]: 14: Hoare triple {27411#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27411#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,517 INFO L273 TraceCheckUtils]: 15: Hoare triple {27411#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27418#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,518 INFO L273 TraceCheckUtils]: 16: Hoare triple {27418#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27418#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,519 INFO L273 TraceCheckUtils]: 17: Hoare triple {27418#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27425#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,519 INFO L273 TraceCheckUtils]: 18: Hoare triple {27425#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27425#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,520 INFO L273 TraceCheckUtils]: 19: Hoare triple {27425#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27432#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,521 INFO L273 TraceCheckUtils]: 20: Hoare triple {27432#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27432#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,522 INFO L273 TraceCheckUtils]: 21: Hoare triple {27432#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27439#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,522 INFO L273 TraceCheckUtils]: 22: Hoare triple {27439#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27439#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,523 INFO L273 TraceCheckUtils]: 23: Hoare triple {27439#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27446#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,524 INFO L273 TraceCheckUtils]: 24: Hoare triple {27446#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27446#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,524 INFO L273 TraceCheckUtils]: 25: Hoare triple {27446#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27453#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,525 INFO L273 TraceCheckUtils]: 26: Hoare triple {27453#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27453#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,526 INFO L273 TraceCheckUtils]: 27: Hoare triple {27453#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27460#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,526 INFO L273 TraceCheckUtils]: 28: Hoare triple {27460#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27460#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,527 INFO L273 TraceCheckUtils]: 29: Hoare triple {27460#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27467#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,528 INFO L273 TraceCheckUtils]: 30: Hoare triple {27467#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27467#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,528 INFO L273 TraceCheckUtils]: 31: Hoare triple {27467#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27474#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,529 INFO L273 TraceCheckUtils]: 32: Hoare triple {27474#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27474#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,530 INFO L273 TraceCheckUtils]: 33: Hoare triple {27474#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27481#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,530 INFO L273 TraceCheckUtils]: 34: Hoare triple {27481#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27481#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,531 INFO L273 TraceCheckUtils]: 35: Hoare triple {27481#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27488#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,531 INFO L273 TraceCheckUtils]: 36: Hoare triple {27488#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27488#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,532 INFO L273 TraceCheckUtils]: 37: Hoare triple {27488#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27495#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,533 INFO L273 TraceCheckUtils]: 38: Hoare triple {27495#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27495#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,533 INFO L273 TraceCheckUtils]: 39: Hoare triple {27495#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27502#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:59:59,534 INFO L273 TraceCheckUtils]: 40: Hoare triple {27502#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {27502#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 17:59:59,535 INFO L273 TraceCheckUtils]: 41: Hoare triple {27502#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {27509#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,535 INFO L273 TraceCheckUtils]: 42: Hoare triple {27509#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27509#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,536 INFO L273 TraceCheckUtils]: 43: Hoare triple {27509#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27516#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,537 INFO L273 TraceCheckUtils]: 44: Hoare triple {27516#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27516#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,538 INFO L273 TraceCheckUtils]: 45: Hoare triple {27516#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27523#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,538 INFO L273 TraceCheckUtils]: 46: Hoare triple {27523#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27523#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,539 INFO L273 TraceCheckUtils]: 47: Hoare triple {27523#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27530#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,540 INFO L273 TraceCheckUtils]: 48: Hoare triple {27530#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27530#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,540 INFO L273 TraceCheckUtils]: 49: Hoare triple {27530#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27537#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,541 INFO L273 TraceCheckUtils]: 50: Hoare triple {27537#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27537#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,542 INFO L273 TraceCheckUtils]: 51: Hoare triple {27537#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27544#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,542 INFO L273 TraceCheckUtils]: 52: Hoare triple {27544#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27544#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,543 INFO L273 TraceCheckUtils]: 53: Hoare triple {27544#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27551#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,544 INFO L273 TraceCheckUtils]: 54: Hoare triple {27551#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27551#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,544 INFO L273 TraceCheckUtils]: 55: Hoare triple {27551#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27558#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,545 INFO L273 TraceCheckUtils]: 56: Hoare triple {27558#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27558#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,546 INFO L273 TraceCheckUtils]: 57: Hoare triple {27558#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27565#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,546 INFO L273 TraceCheckUtils]: 58: Hoare triple {27565#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27565#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,547 INFO L273 TraceCheckUtils]: 59: Hoare triple {27565#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27572#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,548 INFO L273 TraceCheckUtils]: 60: Hoare triple {27572#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27572#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,548 INFO L273 TraceCheckUtils]: 61: Hoare triple {27572#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27579#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,549 INFO L273 TraceCheckUtils]: 62: Hoare triple {27579#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27579#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,550 INFO L273 TraceCheckUtils]: 63: Hoare triple {27579#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27586#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,550 INFO L273 TraceCheckUtils]: 64: Hoare triple {27586#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27586#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,551 INFO L273 TraceCheckUtils]: 65: Hoare triple {27586#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27593#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,552 INFO L273 TraceCheckUtils]: 66: Hoare triple {27593#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27593#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,552 INFO L273 TraceCheckUtils]: 67: Hoare triple {27593#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27600#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,553 INFO L273 TraceCheckUtils]: 68: Hoare triple {27600#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27600#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,554 INFO L273 TraceCheckUtils]: 69: Hoare triple {27600#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27607#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 17:59:59,555 INFO L273 TraceCheckUtils]: 70: Hoare triple {27607#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {27607#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 17:59:59,555 INFO L273 TraceCheckUtils]: 71: Hoare triple {27607#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {27614#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,556 INFO L273 TraceCheckUtils]: 72: Hoare triple {27614#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27614#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,557 INFO L273 TraceCheckUtils]: 73: Hoare triple {27614#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27621#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,557 INFO L273 TraceCheckUtils]: 74: Hoare triple {27621#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27621#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,558 INFO L273 TraceCheckUtils]: 75: Hoare triple {27621#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27628#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,559 INFO L273 TraceCheckUtils]: 76: Hoare triple {27628#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27628#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,559 INFO L273 TraceCheckUtils]: 77: Hoare triple {27628#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27635#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,560 INFO L273 TraceCheckUtils]: 78: Hoare triple {27635#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27635#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,561 INFO L273 TraceCheckUtils]: 79: Hoare triple {27635#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27642#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,561 INFO L273 TraceCheckUtils]: 80: Hoare triple {27642#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27642#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,562 INFO L273 TraceCheckUtils]: 81: Hoare triple {27642#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27649#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 17:59:59,563 INFO L273 TraceCheckUtils]: 82: Hoare triple {27649#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {27649#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 17:59:59,563 INFO L273 TraceCheckUtils]: 83: Hoare triple {27649#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {27656#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,564 INFO L273 TraceCheckUtils]: 84: Hoare triple {27656#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27656#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,565 INFO L273 TraceCheckUtils]: 85: Hoare triple {27656#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27663#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,565 INFO L273 TraceCheckUtils]: 86: Hoare triple {27663#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27663#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,566 INFO L273 TraceCheckUtils]: 87: Hoare triple {27663#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27670#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,567 INFO L273 TraceCheckUtils]: 88: Hoare triple {27670#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27670#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,567 INFO L273 TraceCheckUtils]: 89: Hoare triple {27670#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27677#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,568 INFO L273 TraceCheckUtils]: 90: Hoare triple {27677#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {27681#(and (= main_i 180) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 17:59:59,569 INFO L273 TraceCheckUtils]: 91: Hoare triple {27681#(and (= main_i 180) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {27361#(and (<= main_i 184) (<= 46 main_n))} is VALID [2018-12-18 17:59:59,570 INFO L273 TraceCheckUtils]: 92: Hoare triple {27361#(and (<= main_i 184) (<= 46 main_n))} assume !(i <= n * 4); {27313#false} is VALID [2018-12-18 17:59:59,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 2070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:59:59,596 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 18:00:05,507 INFO L273 TraceCheckUtils]: 92: Hoare triple {27688#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {27313#false} is VALID [2018-12-18 18:00:05,508 INFO L273 TraceCheckUtils]: 91: Hoare triple {27692#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {27688#(<= main_i (* 4 main_n))} is VALID [2018-12-18 18:00:05,509 INFO L273 TraceCheckUtils]: 90: Hoare triple {27696#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {27692#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 18:00:05,510 INFO L273 TraceCheckUtils]: 89: Hoare triple {27700#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {27696#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 18:00:05,511 INFO L273 TraceCheckUtils]: 88: Hoare triple {27700#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {27700#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 18:00:05,512 INFO L273 TraceCheckUtils]: 87: Hoare triple {27707#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {27700#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 18:00:05,512 INFO L273 TraceCheckUtils]: 86: Hoare triple {27707#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {27707#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 18:00:05,514 INFO L273 TraceCheckUtils]: 85: Hoare triple {27714#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {27707#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 18:00:05,514 INFO L273 TraceCheckUtils]: 84: Hoare triple {27714#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {27714#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 18:00:05,515 INFO L273 TraceCheckUtils]: 83: Hoare triple {27721#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {27714#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 18:00:05,516 INFO L273 TraceCheckUtils]: 82: Hoare triple {27721#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {27721#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 18:00:05,517 INFO L273 TraceCheckUtils]: 81: Hoare triple {27728#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27721#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 18:00:05,517 INFO L273 TraceCheckUtils]: 80: Hoare triple {27728#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {27728#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,518 INFO L273 TraceCheckUtils]: 79: Hoare triple {27735#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {27728#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,519 INFO L273 TraceCheckUtils]: 78: Hoare triple {27735#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {27735#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 18:00:05,520 INFO L273 TraceCheckUtils]: 77: Hoare triple {27742#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27735#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 18:00:05,521 INFO L273 TraceCheckUtils]: 76: Hoare triple {27742#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {27742#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,522 INFO L273 TraceCheckUtils]: 75: Hoare triple {27749#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27742#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,522 INFO L273 TraceCheckUtils]: 74: Hoare triple {27749#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {27749#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,523 INFO L273 TraceCheckUtils]: 73: Hoare triple {27756#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27749#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,524 INFO L273 TraceCheckUtils]: 72: Hoare triple {27756#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {27756#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,525 INFO L273 TraceCheckUtils]: 71: Hoare triple {27763#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {27756#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,525 INFO L273 TraceCheckUtils]: 70: Hoare triple {27763#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {27763#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 18:00:05,526 INFO L273 TraceCheckUtils]: 69: Hoare triple {27770#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27763#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 18:00:05,527 INFO L273 TraceCheckUtils]: 68: Hoare triple {27770#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {27770#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,528 INFO L273 TraceCheckUtils]: 67: Hoare triple {27777#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27770#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,528 INFO L273 TraceCheckUtils]: 66: Hoare triple {27777#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {27777#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,529 INFO L273 TraceCheckUtils]: 65: Hoare triple {27784#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {27777#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,530 INFO L273 TraceCheckUtils]: 64: Hoare triple {27784#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {27784#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 18:00:05,531 INFO L273 TraceCheckUtils]: 63: Hoare triple {27791#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27784#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 18:00:05,532 INFO L273 TraceCheckUtils]: 62: Hoare triple {27791#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {27791#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,533 INFO L273 TraceCheckUtils]: 61: Hoare triple {27798#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {27791#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,533 INFO L273 TraceCheckUtils]: 60: Hoare triple {27798#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {27798#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 18:00:05,534 INFO L273 TraceCheckUtils]: 59: Hoare triple {27805#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {27798#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 18:00:05,535 INFO L273 TraceCheckUtils]: 58: Hoare triple {27805#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {27805#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 18:00:05,536 INFO L273 TraceCheckUtils]: 57: Hoare triple {27812#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {27805#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 18:00:05,536 INFO L273 TraceCheckUtils]: 56: Hoare triple {27812#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {27812#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 18:00:05,537 INFO L273 TraceCheckUtils]: 55: Hoare triple {27819#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {27812#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 18:00:05,538 INFO L273 TraceCheckUtils]: 54: Hoare triple {27819#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {27819#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 18:00:05,539 INFO L273 TraceCheckUtils]: 53: Hoare triple {27826#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {27819#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 18:00:05,540 INFO L273 TraceCheckUtils]: 52: Hoare triple {27826#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {27826#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 18:00:05,541 INFO L273 TraceCheckUtils]: 51: Hoare triple {27833#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {27826#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 18:00:05,541 INFO L273 TraceCheckUtils]: 50: Hoare triple {27833#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {27833#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 18:00:05,542 INFO L273 TraceCheckUtils]: 49: Hoare triple {27840#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27833#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 18:00:05,543 INFO L273 TraceCheckUtils]: 48: Hoare triple {27840#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {27840#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,544 INFO L273 TraceCheckUtils]: 47: Hoare triple {27847#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27840#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,545 INFO L273 TraceCheckUtils]: 46: Hoare triple {27847#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {27847#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,546 INFO L273 TraceCheckUtils]: 45: Hoare triple {27854#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27847#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,546 INFO L273 TraceCheckUtils]: 44: Hoare triple {27854#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {27854#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,547 INFO L273 TraceCheckUtils]: 43: Hoare triple {27861#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {27854#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,548 INFO L273 TraceCheckUtils]: 42: Hoare triple {27861#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {27861#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 18:00:05,549 INFO L273 TraceCheckUtils]: 41: Hoare triple {27868#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27861#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 18:00:05,549 INFO L273 TraceCheckUtils]: 40: Hoare triple {27868#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {27868#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,551 INFO L273 TraceCheckUtils]: 39: Hoare triple {27875#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {27868#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,551 INFO L273 TraceCheckUtils]: 38: Hoare triple {27875#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {27875#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 18:00:05,552 INFO L273 TraceCheckUtils]: 37: Hoare triple {27882#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {27875#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 18:00:05,553 INFO L273 TraceCheckUtils]: 36: Hoare triple {27882#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {27882#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 18:00:05,554 INFO L273 TraceCheckUtils]: 35: Hoare triple {27889#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {27882#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 18:00:05,554 INFO L273 TraceCheckUtils]: 34: Hoare triple {27889#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {27889#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 18:00:05,556 INFO L273 TraceCheckUtils]: 33: Hoare triple {27896#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27889#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 18:00:05,556 INFO L273 TraceCheckUtils]: 32: Hoare triple {27896#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {27896#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,557 INFO L273 TraceCheckUtils]: 31: Hoare triple {27903#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27896#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,558 INFO L273 TraceCheckUtils]: 30: Hoare triple {27903#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {27903#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,559 INFO L273 TraceCheckUtils]: 29: Hoare triple {27910#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {27903#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,559 INFO L273 TraceCheckUtils]: 28: Hoare triple {27910#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {27910#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 18:00:05,560 INFO L273 TraceCheckUtils]: 27: Hoare triple {27917#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27910#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 18:00:05,561 INFO L273 TraceCheckUtils]: 26: Hoare triple {27917#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {27917#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,562 INFO L273 TraceCheckUtils]: 25: Hoare triple {27924#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {27917#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,563 INFO L273 TraceCheckUtils]: 24: Hoare triple {27924#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {27924#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 18:00:05,564 INFO L273 TraceCheckUtils]: 23: Hoare triple {27931#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {27924#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 18:00:05,564 INFO L273 TraceCheckUtils]: 22: Hoare triple {27931#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {27931#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 18:00:05,565 INFO L273 TraceCheckUtils]: 21: Hoare triple {27938#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {27931#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 18:00:05,566 INFO L273 TraceCheckUtils]: 20: Hoare triple {27938#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {27938#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 18:00:05,567 INFO L273 TraceCheckUtils]: 19: Hoare triple {27945#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {27938#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 18:00:05,568 INFO L273 TraceCheckUtils]: 18: Hoare triple {27945#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {27945#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 18:00:05,569 INFO L273 TraceCheckUtils]: 17: Hoare triple {27952#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {27945#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 18:00:05,569 INFO L273 TraceCheckUtils]: 16: Hoare triple {27952#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {27952#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 18:00:05,570 INFO L273 TraceCheckUtils]: 15: Hoare triple {27959#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {27952#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 18:00:05,571 INFO L273 TraceCheckUtils]: 14: Hoare triple {27959#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {27959#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 18:00:05,572 INFO L273 TraceCheckUtils]: 13: Hoare triple {27966#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {27959#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 18:00:05,572 INFO L273 TraceCheckUtils]: 12: Hoare triple {27966#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {27966#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 18:00:05,573 INFO L273 TraceCheckUtils]: 11: Hoare triple {27973#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {27966#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 18:00:05,574 INFO L273 TraceCheckUtils]: 10: Hoare triple {27973#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {27973#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 18:00:05,575 INFO L273 TraceCheckUtils]: 9: Hoare triple {27980#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {27973#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 18:00:05,575 INFO L273 TraceCheckUtils]: 8: Hoare triple {27980#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {27980#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 18:00:05,576 INFO L273 TraceCheckUtils]: 7: Hoare triple {27987#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27980#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 18:00:05,577 INFO L273 TraceCheckUtils]: 6: Hoare triple {27987#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {27987#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,578 INFO L273 TraceCheckUtils]: 5: Hoare triple {27994#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {27987#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,579 INFO L273 TraceCheckUtils]: 4: Hoare triple {27994#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {27994#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,580 INFO L273 TraceCheckUtils]: 3: Hoare triple {28001#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {27994#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2018-12-18 18:00:05,580 INFO L273 TraceCheckUtils]: 2: Hoare triple {28001#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {28001#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2018-12-18 18:00:05,581 INFO L273 TraceCheckUtils]: 1: Hoare triple {28008#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {28001#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2018-12-18 18:00:05,582 INFO L273 TraceCheckUtils]: 0: Hoare triple {27312#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {28008#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2018-12-18 18:00:05,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 2070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:00:05,633 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 18:00:05,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 143 [2018-12-18 18:00:05,633 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 18:00:05,634 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 93 [2018-12-18 18:00:05,634 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 18:00:05,634 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 97 states. [2018-12-18 18:00:05,856 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 185 edges. 185 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 18:00:05,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 97 states [2018-12-18 18:00:05,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2018-12-18 18:00:05,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2552, Invalid=18328, Unknown=0, NotChecked=0, Total=20880 [2018-12-18 18:00:05,858 INFO L87 Difference]: Start difference. First operand 94 states and 94 transitions. Second operand 97 states. [2018-12-18 18:00:20,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:00:20,742 INFO L93 Difference]: Finished difference Result 98 states and 98 transitions. [2018-12-18 18:00:20,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-12-18 18:00:20,742 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 93 [2018-12-18 18:00:20,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 18:00:20,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-12-18 18:00:20,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 98 transitions. [2018-12-18 18:00:20,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-12-18 18:00:20,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 98 transitions. [2018-12-18 18:00:20,744 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 50 states and 98 transitions. [2018-12-18 18:00:20,849 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 98 edges. 98 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 18:00:20,851 INFO L225 Difference]: With dead ends: 98 [2018-12-18 18:00:20,851 INFO L226 Difference]: Without dead ends: 97 [2018-12-18 18:00:20,852 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4700 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=2552, Invalid=18328, Unknown=0, NotChecked=0, Total=20880 [2018-12-18 18:00:20,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-12-18 18:00:20,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2018-12-18 18:00:20,954 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 18:00:20,955 INFO L82 GeneralOperation]: Start isEquivalent. First operand 97 states. Second operand 96 states. [2018-12-18 18:00:20,955 INFO L74 IsIncluded]: Start isIncluded. First operand 97 states. Second operand 96 states. [2018-12-18 18:00:20,955 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 96 states. [2018-12-18 18:00:20,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:00:20,957 INFO L93 Difference]: Finished difference Result 97 states and 97 transitions. [2018-12-18 18:00:20,957 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2018-12-18 18:00:20,957 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 18:00:20,957 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 18:00:20,958 INFO L74 IsIncluded]: Start isIncluded. First operand 96 states. Second operand 97 states. [2018-12-18 18:00:20,958 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 97 states. [2018-12-18 18:00:20,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:00:20,959 INFO L93 Difference]: Finished difference Result 97 states and 97 transitions. [2018-12-18 18:00:20,959 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2018-12-18 18:00:20,959 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 18:00:20,959 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 18:00:20,960 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 18:00:20,960 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 18:00:20,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-12-18 18:00:20,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2018-12-18 18:00:20,961 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 93 [2018-12-18 18:00:20,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 18:00:20,961 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2018-12-18 18:00:20,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has 97 states. [2018-12-18 18:00:20,961 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2018-12-18 18:00:20,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-12-18 18:00:20,962 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 18:00:20,962 INFO L402 BasicCegarLoop]: trace histogram [47, 46, 1, 1] [2018-12-18 18:00:20,962 INFO L423 AbstractCegarLoop]: === Iteration 47 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 18:00:20,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 18:00:20,963 INFO L82 PathProgramCache]: Analyzing trace with hash 592137020, now seen corresponding path program 46 times [2018-12-18 18:00:20,963 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 18:00:20,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 18:00:20,963 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 18:00:20,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 18:00:20,964 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 18:00:20,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 18:00:21,395 WARN L181 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-12-18 18:00:21,815 WARN L181 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-12-18 18:00:24,285 INFO L273 TraceCheckUtils]: 0: Hoare triple {28494#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {28496#(and (or (<= 0 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 0)))} is VALID [2018-12-18 18:00:24,286 INFO L273 TraceCheckUtils]: 1: Hoare triple {28496#(and (or (<= 0 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {28497#(and (or (<= main_n 46) (<= main_i 4)) (or (< 46 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,287 INFO L273 TraceCheckUtils]: 2: Hoare triple {28497#(and (or (<= main_n 46) (<= main_i 4)) (or (< 46 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28497#(and (or (<= main_n 46) (<= main_i 4)) (or (< 46 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,288 INFO L273 TraceCheckUtils]: 3: Hoare triple {28497#(and (or (<= main_n 46) (<= main_i 4)) (or (< 46 main_n) (<= 4 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28498#(and (or (<= 8 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 8)))} is VALID [2018-12-18 18:00:24,288 INFO L273 TraceCheckUtils]: 4: Hoare triple {28498#(and (or (<= 8 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 8)))} assume i <= n * 4; {28498#(and (or (<= 8 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 8)))} is VALID [2018-12-18 18:00:24,289 INFO L273 TraceCheckUtils]: 5: Hoare triple {28498#(and (or (<= 8 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 8)))} assume a[i] != 23;i := i + 4; {28499#(and (or (< 46 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 12)))} is VALID [2018-12-18 18:00:24,290 INFO L273 TraceCheckUtils]: 6: Hoare triple {28499#(and (or (< 46 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 12)))} assume i <= n * 4; {28499#(and (or (< 46 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 12)))} is VALID [2018-12-18 18:00:24,291 INFO L273 TraceCheckUtils]: 7: Hoare triple {28499#(and (or (< 46 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {28500#(and (or (<= main_n 46) (<= main_i 16)) (or (< 46 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,292 INFO L273 TraceCheckUtils]: 8: Hoare triple {28500#(and (or (<= main_n 46) (<= main_i 16)) (or (< 46 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28500#(and (or (<= main_n 46) (<= main_i 16)) (or (< 46 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,293 INFO L273 TraceCheckUtils]: 9: Hoare triple {28500#(and (or (<= main_n 46) (<= main_i 16)) (or (< 46 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28501#(and (or (<= main_n 46) (<= main_i 20)) (or (< 46 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,294 INFO L273 TraceCheckUtils]: 10: Hoare triple {28501#(and (or (<= main_n 46) (<= main_i 20)) (or (< 46 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28501#(and (or (<= main_n 46) (<= main_i 20)) (or (< 46 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,295 INFO L273 TraceCheckUtils]: 11: Hoare triple {28501#(and (or (<= main_n 46) (<= main_i 20)) (or (< 46 main_n) (<= 20 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28502#(and (or (<= main_n 46) (<= main_i 24)) (or (< 46 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,296 INFO L273 TraceCheckUtils]: 12: Hoare triple {28502#(and (or (<= main_n 46) (<= main_i 24)) (or (< 46 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28502#(and (or (<= main_n 46) (<= main_i 24)) (or (< 46 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,297 INFO L273 TraceCheckUtils]: 13: Hoare triple {28502#(and (or (<= main_n 46) (<= main_i 24)) (or (< 46 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28503#(and (or (<= 28 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,297 INFO L273 TraceCheckUtils]: 14: Hoare triple {28503#(and (or (<= 28 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28503#(and (or (<= 28 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,299 INFO L273 TraceCheckUtils]: 15: Hoare triple {28503#(and (or (<= 28 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28504#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 46)) (or (<= 32 main_i) (< 46 main_n)))} is VALID [2018-12-18 18:00:24,299 INFO L273 TraceCheckUtils]: 16: Hoare triple {28504#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 46)) (or (<= 32 main_i) (< 46 main_n)))} assume i <= n * 4; {28504#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 46)) (or (<= 32 main_i) (< 46 main_n)))} is VALID [2018-12-18 18:00:24,300 INFO L273 TraceCheckUtils]: 17: Hoare triple {28504#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_i 32) (<= main_n 46)) (or (<= 32 main_i) (< 46 main_n)))} assume a[i] != 23;i := i + 4; {28505#(and (or (< 46 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,301 INFO L273 TraceCheckUtils]: 18: Hoare triple {28505#(and (or (< 46 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28505#(and (or (< 46 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,302 INFO L273 TraceCheckUtils]: 19: Hoare triple {28505#(and (or (< 46 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28506#(and (or (<= main_n 46) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 46 main_n)))} is VALID [2018-12-18 18:00:24,303 INFO L273 TraceCheckUtils]: 20: Hoare triple {28506#(and (or (<= main_n 46) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 46 main_n)))} assume i <= n * 4; {28506#(and (or (<= main_n 46) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 46 main_n)))} is VALID [2018-12-18 18:00:24,304 INFO L273 TraceCheckUtils]: 21: Hoare triple {28506#(and (or (<= main_n 46) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))) (or (<= 40 main_i) (< 46 main_n)))} assume a[i] != 23;i := i + 4; {28507#(and (or (<= 44 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,305 INFO L273 TraceCheckUtils]: 22: Hoare triple {28507#(and (or (<= 44 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28507#(and (or (<= 44 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,306 INFO L273 TraceCheckUtils]: 23: Hoare triple {28507#(and (or (<= 44 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28508#(and (or (<= main_n 46) (<= main_i 48)) (or (<= 48 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,307 INFO L273 TraceCheckUtils]: 24: Hoare triple {28508#(and (or (<= main_n 46) (<= main_i 48)) (or (<= 48 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28508#(and (or (<= main_n 46) (<= main_i 48)) (or (<= 48 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,308 INFO L273 TraceCheckUtils]: 25: Hoare triple {28508#(and (or (<= main_n 46) (<= main_i 48)) (or (<= 48 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28509#(and (or (< 46 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 52)))} is VALID [2018-12-18 18:00:24,309 INFO L273 TraceCheckUtils]: 26: Hoare triple {28509#(and (or (< 46 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 52)))} assume i <= n * 4; {28509#(and (or (< 46 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 52)))} is VALID [2018-12-18 18:00:24,310 INFO L273 TraceCheckUtils]: 27: Hoare triple {28509#(and (or (< 46 main_n) (<= 52 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 52)))} assume a[i] != 23;i := i + 4; {28510#(and (or (< 46 main_n) (<= 56 main_i)) (or (<= main_n 46) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,311 INFO L273 TraceCheckUtils]: 28: Hoare triple {28510#(and (or (< 46 main_n) (<= 56 main_i)) (or (<= main_n 46) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28510#(and (or (< 46 main_n) (<= 56 main_i)) (or (<= main_n 46) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,312 INFO L273 TraceCheckUtils]: 29: Hoare triple {28510#(and (or (< 46 main_n) (<= 56 main_i)) (or (<= main_n 46) (<= main_i 56)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28511#(and (or (< 46 main_n) (<= 60 main_i)) (or (<= main_n 46) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,312 INFO L273 TraceCheckUtils]: 30: Hoare triple {28511#(and (or (< 46 main_n) (<= 60 main_i)) (or (<= main_n 46) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28511#(and (or (< 46 main_n) (<= 60 main_i)) (or (<= main_n 46) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,314 INFO L273 TraceCheckUtils]: 31: Hoare triple {28511#(and (or (< 46 main_n) (<= 60 main_i)) (or (<= main_n 46) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28512#(and (or (<= main_n 46) (<= main_i 64)) (or (<= 64 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,314 INFO L273 TraceCheckUtils]: 32: Hoare triple {28512#(and (or (<= main_n 46) (<= main_i 64)) (or (<= 64 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28512#(and (or (<= main_n 46) (<= main_i 64)) (or (<= 64 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,315 INFO L273 TraceCheckUtils]: 33: Hoare triple {28512#(and (or (<= main_n 46) (<= main_i 64)) (or (<= 64 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28513#(and (or (< 46 main_n) (<= 68 main_i)) (or (<= main_n 46) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,316 INFO L273 TraceCheckUtils]: 34: Hoare triple {28513#(and (or (< 46 main_n) (<= 68 main_i)) (or (<= main_n 46) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28513#(and (or (< 46 main_n) (<= 68 main_i)) (or (<= main_n 46) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,317 INFO L273 TraceCheckUtils]: 35: Hoare triple {28513#(and (or (< 46 main_n) (<= 68 main_i)) (or (<= main_n 46) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28514#(and (or (<= main_n 46) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))) (or (<= 72 main_i) (< 46 main_n)))} is VALID [2018-12-18 18:00:24,318 INFO L273 TraceCheckUtils]: 36: Hoare triple {28514#(and (or (<= main_n 46) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))) (or (<= 72 main_i) (< 46 main_n)))} assume i <= n * 4; {28514#(and (or (<= main_n 46) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))) (or (<= 72 main_i) (< 46 main_n)))} is VALID [2018-12-18 18:00:24,319 INFO L273 TraceCheckUtils]: 37: Hoare triple {28514#(and (or (<= main_n 46) (<= main_i 72)) (= 23 (select main_a (* 4 main_n))) (or (<= 72 main_i) (< 46 main_n)))} assume a[i] != 23;i := i + 4; {28515#(and (or (<= 76 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 46)))} is VALID [2018-12-18 18:00:24,323 INFO L273 TraceCheckUtils]: 38: Hoare triple {28515#(and (or (<= 76 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 46)))} assume i <= n * 4; {28515#(and (or (<= 76 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 46)))} is VALID [2018-12-18 18:00:24,324 INFO L273 TraceCheckUtils]: 39: Hoare triple {28515#(and (or (<= 76 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 76) (<= main_n 46)))} assume a[i] != 23;i := i + 4; {28516#(and (or (<= 80 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,324 INFO L273 TraceCheckUtils]: 40: Hoare triple {28516#(and (or (<= 80 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28516#(and (or (<= 80 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,325 INFO L273 TraceCheckUtils]: 41: Hoare triple {28516#(and (or (<= 80 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28517#(and (or (<= main_n 46) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 84 main_i)))} is VALID [2018-12-18 18:00:24,326 INFO L273 TraceCheckUtils]: 42: Hoare triple {28517#(and (or (<= main_n 46) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 84 main_i)))} assume i <= n * 4; {28517#(and (or (<= main_n 46) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 84 main_i)))} is VALID [2018-12-18 18:00:24,326 INFO L273 TraceCheckUtils]: 43: Hoare triple {28517#(and (or (<= main_n 46) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 84 main_i)))} assume a[i] != 23;i := i + 4; {28518#(and (or (< 46 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 88)))} is VALID [2018-12-18 18:00:24,327 INFO L273 TraceCheckUtils]: 44: Hoare triple {28518#(and (or (< 46 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 88)))} assume i <= n * 4; {28518#(and (or (< 46 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 88)))} is VALID [2018-12-18 18:00:24,328 INFO L273 TraceCheckUtils]: 45: Hoare triple {28518#(and (or (< 46 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 46) (<= main_i 88)))} assume a[i] != 23;i := i + 4; {28519#(and (or (<= main_i 92) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 92 main_i)))} is VALID [2018-12-18 18:00:24,329 INFO L273 TraceCheckUtils]: 46: Hoare triple {28519#(and (or (<= main_i 92) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 92 main_i)))} assume i <= n * 4; {28519#(and (or (<= main_i 92) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 92 main_i)))} is VALID [2018-12-18 18:00:24,330 INFO L273 TraceCheckUtils]: 47: Hoare triple {28519#(and (or (<= main_i 92) (<= main_n 46)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 92 main_i)))} assume a[i] != 23;i := i + 4; {28520#(and (or (<= main_i 96) (<= main_n 46)) (or (<= 96 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,331 INFO L273 TraceCheckUtils]: 48: Hoare triple {28520#(and (or (<= main_i 96) (<= main_n 46)) (or (<= 96 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28520#(and (or (<= main_i 96) (<= main_n 46)) (or (<= 96 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,332 INFO L273 TraceCheckUtils]: 49: Hoare triple {28520#(and (or (<= main_i 96) (<= main_n 46)) (or (<= 96 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28521#(and (or (<= 100 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,333 INFO L273 TraceCheckUtils]: 50: Hoare triple {28521#(and (or (<= 100 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28521#(and (or (<= 100 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,334 INFO L273 TraceCheckUtils]: 51: Hoare triple {28521#(and (or (<= 100 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28522#(and (or (<= 104 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 46)))} is VALID [2018-12-18 18:00:24,335 INFO L273 TraceCheckUtils]: 52: Hoare triple {28522#(and (or (<= 104 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 46)))} assume i <= n * 4; {28522#(and (or (<= 104 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 46)))} is VALID [2018-12-18 18:00:24,336 INFO L273 TraceCheckUtils]: 53: Hoare triple {28522#(and (or (<= 104 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 104) (<= main_n 46)))} assume a[i] != 23;i := i + 4; {28523#(and (or (<= main_n 46) (<= main_i 108)) (or (<= 108 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,337 INFO L273 TraceCheckUtils]: 54: Hoare triple {28523#(and (or (<= main_n 46) (<= main_i 108)) (or (<= 108 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28523#(and (or (<= main_n 46) (<= main_i 108)) (or (<= 108 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,338 INFO L273 TraceCheckUtils]: 55: Hoare triple {28523#(and (or (<= main_n 46) (<= main_i 108)) (or (<= 108 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28524#(and (or (< 46 main_n) (<= 112 main_i)) (or (<= main_n 46) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,338 INFO L273 TraceCheckUtils]: 56: Hoare triple {28524#(and (or (< 46 main_n) (<= 112 main_i)) (or (<= main_n 46) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28524#(and (or (< 46 main_n) (<= 112 main_i)) (or (<= main_n 46) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,340 INFO L273 TraceCheckUtils]: 57: Hoare triple {28524#(and (or (< 46 main_n) (<= 112 main_i)) (or (<= main_n 46) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28525#(and (or (<= main_n 46) (<= main_i 116)) (or (<= 116 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,340 INFO L273 TraceCheckUtils]: 58: Hoare triple {28525#(and (or (<= main_n 46) (<= main_i 116)) (or (<= 116 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28525#(and (or (<= main_n 46) (<= main_i 116)) (or (<= 116 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,342 INFO L273 TraceCheckUtils]: 59: Hoare triple {28525#(and (or (<= main_n 46) (<= main_i 116)) (or (<= 116 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28526#(and (or (<= main_n 46) (<= main_i 120)) (or (<= 120 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,342 INFO L273 TraceCheckUtils]: 60: Hoare triple {28526#(and (or (<= main_n 46) (<= main_i 120)) (or (<= 120 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28526#(and (or (<= main_n 46) (<= main_i 120)) (or (<= 120 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,344 INFO L273 TraceCheckUtils]: 61: Hoare triple {28526#(and (or (<= main_n 46) (<= main_i 120)) (or (<= 120 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28527#(and (or (<= 124 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,344 INFO L273 TraceCheckUtils]: 62: Hoare triple {28527#(and (or (<= 124 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28527#(and (or (<= 124 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,346 INFO L273 TraceCheckUtils]: 63: Hoare triple {28527#(and (or (<= 124 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28528#(and (or (< 46 main_n) (<= 128 main_i)) (or (<= main_n 46) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,346 INFO L273 TraceCheckUtils]: 64: Hoare triple {28528#(and (or (< 46 main_n) (<= 128 main_i)) (or (<= main_n 46) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28528#(and (or (< 46 main_n) (<= 128 main_i)) (or (<= main_n 46) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,347 INFO L273 TraceCheckUtils]: 65: Hoare triple {28528#(and (or (< 46 main_n) (<= 128 main_i)) (or (<= main_n 46) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28529#(and (or (<= main_n 46) (<= main_i 132)) (or (<= 132 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,348 INFO L273 TraceCheckUtils]: 66: Hoare triple {28529#(and (or (<= main_n 46) (<= main_i 132)) (or (<= 132 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28529#(and (or (<= main_n 46) (<= main_i 132)) (or (<= 132 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,349 INFO L273 TraceCheckUtils]: 67: Hoare triple {28529#(and (or (<= main_n 46) (<= main_i 132)) (or (<= 132 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28530#(and (or (<= main_n 46) (<= main_i 136)) (or (<= 136 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,350 INFO L273 TraceCheckUtils]: 68: Hoare triple {28530#(and (or (<= main_n 46) (<= main_i 136)) (or (<= 136 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28530#(and (or (<= main_n 46) (<= main_i 136)) (or (<= 136 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,351 INFO L273 TraceCheckUtils]: 69: Hoare triple {28530#(and (or (<= main_n 46) (<= main_i 136)) (or (<= 136 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28531#(and (or (<= main_n 46) (<= main_i 140)) (or (< 46 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,352 INFO L273 TraceCheckUtils]: 70: Hoare triple {28531#(and (or (<= main_n 46) (<= main_i 140)) (or (< 46 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28531#(and (or (<= main_n 46) (<= main_i 140)) (or (< 46 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,353 INFO L273 TraceCheckUtils]: 71: Hoare triple {28531#(and (or (<= main_n 46) (<= main_i 140)) (or (< 46 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28532#(and (or (<= 144 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,354 INFO L273 TraceCheckUtils]: 72: Hoare triple {28532#(and (or (<= 144 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28532#(and (or (<= 144 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,355 INFO L273 TraceCheckUtils]: 73: Hoare triple {28532#(and (or (<= 144 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28533#(and (or (<= main_n 46) (<= main_i 148)) (or (< 46 main_n) (<= 148 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,356 INFO L273 TraceCheckUtils]: 74: Hoare triple {28533#(and (or (<= main_n 46) (<= main_i 148)) (or (< 46 main_n) (<= 148 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28533#(and (or (<= main_n 46) (<= main_i 148)) (or (< 46 main_n) (<= 148 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,357 INFO L273 TraceCheckUtils]: 75: Hoare triple {28533#(and (or (<= main_n 46) (<= main_i 148)) (or (< 46 main_n) (<= 148 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28534#(and (or (<= main_n 46) (<= main_i 152)) (or (<= 152 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,358 INFO L273 TraceCheckUtils]: 76: Hoare triple {28534#(and (or (<= main_n 46) (<= main_i 152)) (or (<= 152 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28534#(and (or (<= main_n 46) (<= main_i 152)) (or (<= 152 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,359 INFO L273 TraceCheckUtils]: 77: Hoare triple {28534#(and (or (<= main_n 46) (<= main_i 152)) (or (<= 152 main_i) (< 46 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28535#(and (or (<= 156 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,360 INFO L273 TraceCheckUtils]: 78: Hoare triple {28535#(and (or (<= 156 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28535#(and (or (<= 156 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,361 INFO L273 TraceCheckUtils]: 79: Hoare triple {28535#(and (or (<= 156 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28536#(and (or (<= main_n 46) (<= main_i 160)) (= 23 (select main_a (* 4 main_n))) (or (<= 160 main_i) (< 46 main_n)))} is VALID [2018-12-18 18:00:24,362 INFO L273 TraceCheckUtils]: 80: Hoare triple {28536#(and (or (<= main_n 46) (<= main_i 160)) (= 23 (select main_a (* 4 main_n))) (or (<= 160 main_i) (< 46 main_n)))} assume i <= n * 4; {28536#(and (or (<= main_n 46) (<= main_i 160)) (= 23 (select main_a (* 4 main_n))) (or (<= 160 main_i) (< 46 main_n)))} is VALID [2018-12-18 18:00:24,363 INFO L273 TraceCheckUtils]: 81: Hoare triple {28536#(and (or (<= main_n 46) (<= main_i 160)) (= 23 (select main_a (* 4 main_n))) (or (<= 160 main_i) (< 46 main_n)))} assume a[i] != 23;i := i + 4; {28537#(and (or (<= 164 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,363 INFO L273 TraceCheckUtils]: 82: Hoare triple {28537#(and (or (<= 164 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28537#(and (or (<= 164 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,365 INFO L273 TraceCheckUtils]: 83: Hoare triple {28537#(and (or (<= 164 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28538#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 168)))} is VALID [2018-12-18 18:00:24,365 INFO L273 TraceCheckUtils]: 84: Hoare triple {28538#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 168)))} assume i <= n * 4; {28538#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 168)))} is VALID [2018-12-18 18:00:24,366 INFO L273 TraceCheckUtils]: 85: Hoare triple {28538#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 46 main_n)) (or (<= main_n 46) (<= main_i 168)))} assume a[i] != 23;i := i + 4; {28539#(and (or (<= main_n 46) (<= main_i 172)) (or (< 46 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,367 INFO L273 TraceCheckUtils]: 86: Hoare triple {28539#(and (or (<= main_n 46) (<= main_i 172)) (or (< 46 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28539#(and (or (<= main_n 46) (<= main_i 172)) (or (< 46 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:24,368 INFO L273 TraceCheckUtils]: 87: Hoare triple {28539#(and (or (<= main_n 46) (<= main_i 172)) (or (< 46 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28540#(and (or (<= main_n 46) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))) (or (<= 176 main_i) (< 46 main_n)))} is VALID [2018-12-18 18:00:24,369 INFO L273 TraceCheckUtils]: 88: Hoare triple {28540#(and (or (<= main_n 46) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))) (or (<= 176 main_i) (< 46 main_n)))} assume i <= n * 4; {28540#(and (or (<= main_n 46) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))) (or (<= 176 main_i) (< 46 main_n)))} is VALID [2018-12-18 18:00:24,370 INFO L273 TraceCheckUtils]: 89: Hoare triple {28540#(and (or (<= main_n 46) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))) (or (<= 176 main_i) (< 46 main_n)))} assume a[i] != 23;i := i + 4; {28541#(and (or (<= main_n 46) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 180 main_i)))} is VALID [2018-12-18 18:00:24,371 INFO L273 TraceCheckUtils]: 90: Hoare triple {28541#(and (or (<= main_n 46) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 180 main_i)))} assume i <= n * 4; {28541#(and (or (<= main_n 46) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 180 main_i)))} is VALID [2018-12-18 18:00:24,372 INFO L273 TraceCheckUtils]: 91: Hoare triple {28541#(and (or (<= main_n 46) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))) (or (< 46 main_n) (<= 180 main_i)))} assume a[i] != 23;i := i + 4; {28542#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 46) (<= main_i 184)) (or (<= (* 4 main_n) main_i) (< 46 main_n)))))} is VALID [2018-12-18 18:00:24,373 INFO L273 TraceCheckUtils]: 92: Hoare triple {28542#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 46) (<= main_i 184)) (or (<= (* 4 main_n) main_i) (< 46 main_n)))))} assume i <= n * 4; {28543#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 184) (< 46 main_n))))} is VALID [2018-12-18 18:00:24,374 INFO L273 TraceCheckUtils]: 93: Hoare triple {28543#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 184) (< 46 main_n))))} assume a[i] != 23;i := i + 4; {28544#(and (<= main_i 188) (< 46 main_n))} is VALID [2018-12-18 18:00:24,375 INFO L273 TraceCheckUtils]: 94: Hoare triple {28544#(and (<= main_i 188) (< 46 main_n))} assume !(i <= n * 4); {28495#false} is VALID [2018-12-18 18:00:24,413 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:00:24,413 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 18:00:24,413 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 18:00:24,413 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 18:00:24,413 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 18:00:24,413 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 18:00:24,413 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 18:00:24,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 18:00:24,423 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-18 18:00:24,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 18:00:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 18:00:24,470 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 18:00:24,478 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 18:00:24,486 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 18:00:24,490 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 18:00:24,491 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 18:00:24,493 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 18:00:24,494 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_50]. (and (= (store v_main_a_50 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 18:00:24,494 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 18:00:28,079 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 18:00:28,081 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 18:00:28,087 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 18:00:28,088 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 18:00:28,090 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 18:00:28,090 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 184) 23)) (<= main_i 188) (<= 184 .cse0) (= 23 (select main_a .cse0)))) [2018-12-18 18:00:28,091 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 184 .cse0)) (<= main_i 188) (<= 184 .cse0))) [2018-12-18 18:00:28,149 INFO L273 TraceCheckUtils]: 0: Hoare triple {28494#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {28548#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,149 INFO L273 TraceCheckUtils]: 1: Hoare triple {28548#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28552#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 18:00:28,150 INFO L273 TraceCheckUtils]: 2: Hoare triple {28552#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {28552#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 18:00:28,151 INFO L273 TraceCheckUtils]: 3: Hoare triple {28552#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {28559#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,151 INFO L273 TraceCheckUtils]: 4: Hoare triple {28559#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28559#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,152 INFO L273 TraceCheckUtils]: 5: Hoare triple {28559#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28566#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 18:00:28,153 INFO L273 TraceCheckUtils]: 6: Hoare triple {28566#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {28566#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 18:00:28,153 INFO L273 TraceCheckUtils]: 7: Hoare triple {28566#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {28573#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,154 INFO L273 TraceCheckUtils]: 8: Hoare triple {28573#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28573#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,155 INFO L273 TraceCheckUtils]: 9: Hoare triple {28573#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28580#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,155 INFO L273 TraceCheckUtils]: 10: Hoare triple {28580#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28580#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,156 INFO L273 TraceCheckUtils]: 11: Hoare triple {28580#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28587#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,157 INFO L273 TraceCheckUtils]: 12: Hoare triple {28587#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28587#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,157 INFO L273 TraceCheckUtils]: 13: Hoare triple {28587#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28594#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,158 INFO L273 TraceCheckUtils]: 14: Hoare triple {28594#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28594#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,159 INFO L273 TraceCheckUtils]: 15: Hoare triple {28594#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28601#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,159 INFO L273 TraceCheckUtils]: 16: Hoare triple {28601#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28601#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,160 INFO L273 TraceCheckUtils]: 17: Hoare triple {28601#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28608#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,161 INFO L273 TraceCheckUtils]: 18: Hoare triple {28608#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28608#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,161 INFO L273 TraceCheckUtils]: 19: Hoare triple {28608#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28615#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,162 INFO L273 TraceCheckUtils]: 20: Hoare triple {28615#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28615#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,163 INFO L273 TraceCheckUtils]: 21: Hoare triple {28615#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28622#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,163 INFO L273 TraceCheckUtils]: 22: Hoare triple {28622#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28622#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,164 INFO L273 TraceCheckUtils]: 23: Hoare triple {28622#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28629#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,165 INFO L273 TraceCheckUtils]: 24: Hoare triple {28629#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28629#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,165 INFO L273 TraceCheckUtils]: 25: Hoare triple {28629#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28636#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,166 INFO L273 TraceCheckUtils]: 26: Hoare triple {28636#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28636#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,167 INFO L273 TraceCheckUtils]: 27: Hoare triple {28636#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28643#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,167 INFO L273 TraceCheckUtils]: 28: Hoare triple {28643#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28643#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,168 INFO L273 TraceCheckUtils]: 29: Hoare triple {28643#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28650#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,169 INFO L273 TraceCheckUtils]: 30: Hoare triple {28650#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28650#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,169 INFO L273 TraceCheckUtils]: 31: Hoare triple {28650#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28657#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,170 INFO L273 TraceCheckUtils]: 32: Hoare triple {28657#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28657#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,171 INFO L273 TraceCheckUtils]: 33: Hoare triple {28657#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28664#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,171 INFO L273 TraceCheckUtils]: 34: Hoare triple {28664#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28664#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,172 INFO L273 TraceCheckUtils]: 35: Hoare triple {28664#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28671#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,173 INFO L273 TraceCheckUtils]: 36: Hoare triple {28671#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28671#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,173 INFO L273 TraceCheckUtils]: 37: Hoare triple {28671#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28678#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,174 INFO L273 TraceCheckUtils]: 38: Hoare triple {28678#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28678#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,175 INFO L273 TraceCheckUtils]: 39: Hoare triple {28678#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28685#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 18:00:28,175 INFO L273 TraceCheckUtils]: 40: Hoare triple {28685#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {28685#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 18:00:28,176 INFO L273 TraceCheckUtils]: 41: Hoare triple {28685#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {28692#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,177 INFO L273 TraceCheckUtils]: 42: Hoare triple {28692#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28692#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,178 INFO L273 TraceCheckUtils]: 43: Hoare triple {28692#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28699#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,178 INFO L273 TraceCheckUtils]: 44: Hoare triple {28699#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28699#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,179 INFO L273 TraceCheckUtils]: 45: Hoare triple {28699#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28706#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,180 INFO L273 TraceCheckUtils]: 46: Hoare triple {28706#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28706#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,180 INFO L273 TraceCheckUtils]: 47: Hoare triple {28706#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28713#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,181 INFO L273 TraceCheckUtils]: 48: Hoare triple {28713#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28713#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,182 INFO L273 TraceCheckUtils]: 49: Hoare triple {28713#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28720#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,182 INFO L273 TraceCheckUtils]: 50: Hoare triple {28720#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28720#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,183 INFO L273 TraceCheckUtils]: 51: Hoare triple {28720#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28727#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,184 INFO L273 TraceCheckUtils]: 52: Hoare triple {28727#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28727#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,184 INFO L273 TraceCheckUtils]: 53: Hoare triple {28727#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28734#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,185 INFO L273 TraceCheckUtils]: 54: Hoare triple {28734#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28734#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,186 INFO L273 TraceCheckUtils]: 55: Hoare triple {28734#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28741#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,186 INFO L273 TraceCheckUtils]: 56: Hoare triple {28741#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28741#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,187 INFO L273 TraceCheckUtils]: 57: Hoare triple {28741#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28748#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,188 INFO L273 TraceCheckUtils]: 58: Hoare triple {28748#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28748#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,188 INFO L273 TraceCheckUtils]: 59: Hoare triple {28748#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28755#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,189 INFO L273 TraceCheckUtils]: 60: Hoare triple {28755#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28755#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,190 INFO L273 TraceCheckUtils]: 61: Hoare triple {28755#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28762#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,190 INFO L273 TraceCheckUtils]: 62: Hoare triple {28762#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28762#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,191 INFO L273 TraceCheckUtils]: 63: Hoare triple {28762#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28769#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,192 INFO L273 TraceCheckUtils]: 64: Hoare triple {28769#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28769#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,192 INFO L273 TraceCheckUtils]: 65: Hoare triple {28769#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28776#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,193 INFO L273 TraceCheckUtils]: 66: Hoare triple {28776#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28776#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,194 INFO L273 TraceCheckUtils]: 67: Hoare triple {28776#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28783#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,194 INFO L273 TraceCheckUtils]: 68: Hoare triple {28783#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28783#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,195 INFO L273 TraceCheckUtils]: 69: Hoare triple {28783#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28790#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 18:00:28,196 INFO L273 TraceCheckUtils]: 70: Hoare triple {28790#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {28790#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 18:00:28,197 INFO L273 TraceCheckUtils]: 71: Hoare triple {28790#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {28797#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,197 INFO L273 TraceCheckUtils]: 72: Hoare triple {28797#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28797#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,198 INFO L273 TraceCheckUtils]: 73: Hoare triple {28797#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28804#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,199 INFO L273 TraceCheckUtils]: 74: Hoare triple {28804#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28804#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,199 INFO L273 TraceCheckUtils]: 75: Hoare triple {28804#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28811#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,200 INFO L273 TraceCheckUtils]: 76: Hoare triple {28811#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28811#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,201 INFO L273 TraceCheckUtils]: 77: Hoare triple {28811#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28818#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,201 INFO L273 TraceCheckUtils]: 78: Hoare triple {28818#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28818#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,202 INFO L273 TraceCheckUtils]: 79: Hoare triple {28818#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28825#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,203 INFO L273 TraceCheckUtils]: 80: Hoare triple {28825#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28825#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,204 INFO L273 TraceCheckUtils]: 81: Hoare triple {28825#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28832#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 18:00:28,204 INFO L273 TraceCheckUtils]: 82: Hoare triple {28832#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {28832#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 18:00:28,205 INFO L273 TraceCheckUtils]: 83: Hoare triple {28832#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {28839#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,206 INFO L273 TraceCheckUtils]: 84: Hoare triple {28839#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28839#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,206 INFO L273 TraceCheckUtils]: 85: Hoare triple {28839#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28846#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,207 INFO L273 TraceCheckUtils]: 86: Hoare triple {28846#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28846#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,208 INFO L273 TraceCheckUtils]: 87: Hoare triple {28846#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28853#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,208 INFO L273 TraceCheckUtils]: 88: Hoare triple {28853#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28853#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,209 INFO L273 TraceCheckUtils]: 89: Hoare triple {28853#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28860#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,210 INFO L273 TraceCheckUtils]: 90: Hoare triple {28860#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28860#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,210 INFO L273 TraceCheckUtils]: 91: Hoare triple {28860#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28867#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,211 INFO L273 TraceCheckUtils]: 92: Hoare triple {28867#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {28871#(and (= main_i 184) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:28,212 INFO L273 TraceCheckUtils]: 93: Hoare triple {28871#(and (= main_i 184) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {28544#(and (<= main_i 188) (< 46 main_n))} is VALID [2018-12-18 18:00:28,213 INFO L273 TraceCheckUtils]: 94: Hoare triple {28544#(and (<= main_i 188) (< 46 main_n))} assume !(i <= n * 4); {28495#false} is VALID [2018-12-18 18:00:28,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:00:28,232 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 18:00:34,390 INFO L273 TraceCheckUtils]: 94: Hoare triple {28878#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {28495#false} is VALID [2018-12-18 18:00:34,391 INFO L273 TraceCheckUtils]: 93: Hoare triple {28882#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {28878#(<= main_i (* 4 main_n))} is VALID [2018-12-18 18:00:34,392 INFO L273 TraceCheckUtils]: 92: Hoare triple {28886#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {28882#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 18:00:34,392 INFO L273 TraceCheckUtils]: 91: Hoare triple {28890#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {28886#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 18:00:34,393 INFO L273 TraceCheckUtils]: 90: Hoare triple {28890#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {28890#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 18:00:34,393 INFO L273 TraceCheckUtils]: 89: Hoare triple {28897#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {28890#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 18:00:34,394 INFO L273 TraceCheckUtils]: 88: Hoare triple {28897#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {28897#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 18:00:34,395 INFO L273 TraceCheckUtils]: 87: Hoare triple {28904#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {28897#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 18:00:34,395 INFO L273 TraceCheckUtils]: 86: Hoare triple {28904#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {28904#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 18:00:34,396 INFO L273 TraceCheckUtils]: 85: Hoare triple {28911#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {28904#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 18:00:34,397 INFO L273 TraceCheckUtils]: 84: Hoare triple {28911#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {28911#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 18:00:34,398 INFO L273 TraceCheckUtils]: 83: Hoare triple {28918#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {28911#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 18:00:34,398 INFO L273 TraceCheckUtils]: 82: Hoare triple {28918#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {28918#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,400 INFO L273 TraceCheckUtils]: 81: Hoare triple {28925#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {28918#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,400 INFO L273 TraceCheckUtils]: 80: Hoare triple {28925#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {28925#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 18:00:34,401 INFO L273 TraceCheckUtils]: 79: Hoare triple {28932#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {28925#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 18:00:34,402 INFO L273 TraceCheckUtils]: 78: Hoare triple {28932#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {28932#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,403 INFO L273 TraceCheckUtils]: 77: Hoare triple {28939#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {28932#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,403 INFO L273 TraceCheckUtils]: 76: Hoare triple {28939#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {28939#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,404 INFO L273 TraceCheckUtils]: 75: Hoare triple {28946#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {28939#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,405 INFO L273 TraceCheckUtils]: 74: Hoare triple {28946#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {28946#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,406 INFO L273 TraceCheckUtils]: 73: Hoare triple {28953#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {28946#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,406 INFO L273 TraceCheckUtils]: 72: Hoare triple {28953#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {28953#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 18:00:34,407 INFO L273 TraceCheckUtils]: 71: Hoare triple {28960#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {28953#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 18:00:34,408 INFO L273 TraceCheckUtils]: 70: Hoare triple {28960#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {28960#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,409 INFO L273 TraceCheckUtils]: 69: Hoare triple {28967#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {28960#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,409 INFO L273 TraceCheckUtils]: 68: Hoare triple {28967#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {28967#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,410 INFO L273 TraceCheckUtils]: 67: Hoare triple {28974#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {28967#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,411 INFO L273 TraceCheckUtils]: 66: Hoare triple {28974#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {28974#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 18:00:34,412 INFO L273 TraceCheckUtils]: 65: Hoare triple {28981#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {28974#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 18:00:34,412 INFO L273 TraceCheckUtils]: 64: Hoare triple {28981#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {28981#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,413 INFO L273 TraceCheckUtils]: 63: Hoare triple {28988#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {28981#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,414 INFO L273 TraceCheckUtils]: 62: Hoare triple {28988#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {28988#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 18:00:34,415 INFO L273 TraceCheckUtils]: 61: Hoare triple {28995#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {28988#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 18:00:34,416 INFO L273 TraceCheckUtils]: 60: Hoare triple {28995#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {28995#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 18:00:34,417 INFO L273 TraceCheckUtils]: 59: Hoare triple {29002#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {28995#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 18:00:34,417 INFO L273 TraceCheckUtils]: 58: Hoare triple {29002#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {29002#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 18:00:34,418 INFO L273 TraceCheckUtils]: 57: Hoare triple {29009#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {29002#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 18:00:34,419 INFO L273 TraceCheckUtils]: 56: Hoare triple {29009#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {29009#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 18:00:34,420 INFO L273 TraceCheckUtils]: 55: Hoare triple {29016#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {29009#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 18:00:34,420 INFO L273 TraceCheckUtils]: 54: Hoare triple {29016#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {29016#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 18:00:34,421 INFO L273 TraceCheckUtils]: 53: Hoare triple {29023#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {29016#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 18:00:34,422 INFO L273 TraceCheckUtils]: 52: Hoare triple {29023#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {29023#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 18:00:34,423 INFO L273 TraceCheckUtils]: 51: Hoare triple {29030#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29023#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 18:00:34,423 INFO L273 TraceCheckUtils]: 50: Hoare triple {29030#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {29030#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,424 INFO L273 TraceCheckUtils]: 49: Hoare triple {29037#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29030#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,425 INFO L273 TraceCheckUtils]: 48: Hoare triple {29037#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {29037#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,426 INFO L273 TraceCheckUtils]: 47: Hoare triple {29044#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29037#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,426 INFO L273 TraceCheckUtils]: 46: Hoare triple {29044#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {29044#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,428 INFO L273 TraceCheckUtils]: 45: Hoare triple {29051#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {29044#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,428 INFO L273 TraceCheckUtils]: 44: Hoare triple {29051#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {29051#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 18:00:34,429 INFO L273 TraceCheckUtils]: 43: Hoare triple {29058#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29051#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 18:00:34,430 INFO L273 TraceCheckUtils]: 42: Hoare triple {29058#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {29058#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,431 INFO L273 TraceCheckUtils]: 41: Hoare triple {29065#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {29058#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,431 INFO L273 TraceCheckUtils]: 40: Hoare triple {29065#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {29065#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 18:00:34,432 INFO L273 TraceCheckUtils]: 39: Hoare triple {29072#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {29065#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 18:00:34,433 INFO L273 TraceCheckUtils]: 38: Hoare triple {29072#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {29072#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 18:00:34,434 INFO L273 TraceCheckUtils]: 37: Hoare triple {29079#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {29072#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 18:00:34,434 INFO L273 TraceCheckUtils]: 36: Hoare triple {29079#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {29079#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 18:00:34,435 INFO L273 TraceCheckUtils]: 35: Hoare triple {29086#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29079#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 18:00:34,436 INFO L273 TraceCheckUtils]: 34: Hoare triple {29086#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {29086#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,437 INFO L273 TraceCheckUtils]: 33: Hoare triple {29093#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29086#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,437 INFO L273 TraceCheckUtils]: 32: Hoare triple {29093#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {29093#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,438 INFO L273 TraceCheckUtils]: 31: Hoare triple {29100#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {29093#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,439 INFO L273 TraceCheckUtils]: 30: Hoare triple {29100#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {29100#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 18:00:34,440 INFO L273 TraceCheckUtils]: 29: Hoare triple {29107#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29100#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 18:00:34,440 INFO L273 TraceCheckUtils]: 28: Hoare triple {29107#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {29107#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,442 INFO L273 TraceCheckUtils]: 27: Hoare triple {29114#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {29107#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,442 INFO L273 TraceCheckUtils]: 26: Hoare triple {29114#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {29114#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 18:00:34,443 INFO L273 TraceCheckUtils]: 25: Hoare triple {29121#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {29114#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 18:00:34,444 INFO L273 TraceCheckUtils]: 24: Hoare triple {29121#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {29121#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 18:00:34,445 INFO L273 TraceCheckUtils]: 23: Hoare triple {29128#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {29121#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 18:00:34,445 INFO L273 TraceCheckUtils]: 22: Hoare triple {29128#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {29128#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 18:00:34,446 INFO L273 TraceCheckUtils]: 21: Hoare triple {29135#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {29128#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 18:00:34,447 INFO L273 TraceCheckUtils]: 20: Hoare triple {29135#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {29135#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 18:00:34,448 INFO L273 TraceCheckUtils]: 19: Hoare triple {29142#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {29135#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 18:00:34,448 INFO L273 TraceCheckUtils]: 18: Hoare triple {29142#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {29142#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 18:00:34,449 INFO L273 TraceCheckUtils]: 17: Hoare triple {29149#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {29142#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 18:00:34,450 INFO L273 TraceCheckUtils]: 16: Hoare triple {29149#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {29149#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 18:00:34,451 INFO L273 TraceCheckUtils]: 15: Hoare triple {29156#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {29149#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 18:00:34,451 INFO L273 TraceCheckUtils]: 14: Hoare triple {29156#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {29156#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 18:00:34,452 INFO L273 TraceCheckUtils]: 13: Hoare triple {29163#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {29156#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 18:00:34,453 INFO L273 TraceCheckUtils]: 12: Hoare triple {29163#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {29163#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 18:00:34,454 INFO L273 TraceCheckUtils]: 11: Hoare triple {29170#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {29163#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 18:00:34,455 INFO L273 TraceCheckUtils]: 10: Hoare triple {29170#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {29170#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 18:00:34,456 INFO L273 TraceCheckUtils]: 9: Hoare triple {29177#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29170#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 18:00:34,456 INFO L273 TraceCheckUtils]: 8: Hoare triple {29177#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {29177#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,457 INFO L273 TraceCheckUtils]: 7: Hoare triple {29184#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {29177#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,458 INFO L273 TraceCheckUtils]: 6: Hoare triple {29184#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {29184#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,459 INFO L273 TraceCheckUtils]: 5: Hoare triple {29191#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {29184#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2018-12-18 18:00:34,459 INFO L273 TraceCheckUtils]: 4: Hoare triple {29191#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {29191#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2018-12-18 18:00:34,460 INFO L273 TraceCheckUtils]: 3: Hoare triple {29198#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {29191#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2018-12-18 18:00:34,461 INFO L273 TraceCheckUtils]: 2: Hoare triple {29198#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {29198#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2018-12-18 18:00:34,462 INFO L273 TraceCheckUtils]: 1: Hoare triple {29205#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {29198#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2018-12-18 18:00:34,463 INFO L273 TraceCheckUtils]: 0: Hoare triple {28494#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {29205#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2018-12-18 18:00:34,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:00:34,514 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 18:00:34,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 146 [2018-12-18 18:00:34,514 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 18:00:34,515 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 95 [2018-12-18 18:00:34,515 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 18:00:34,515 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 99 states. [2018-12-18 18:00:34,735 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 189 edges. 189 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 18:00:34,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 99 states [2018-12-18 18:00:34,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2018-12-18 18:00:34,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2654, Invalid=19102, Unknown=0, NotChecked=0, Total=21756 [2018-12-18 18:00:34,737 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand 99 states. [2018-12-18 18:00:47,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:00:47,872 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2018-12-18 18:00:47,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-12-18 18:00:47,873 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 95 [2018-12-18 18:00:47,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 18:00:47,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-12-18 18:00:47,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 100 transitions. [2018-12-18 18:00:47,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-12-18 18:00:47,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 100 transitions. [2018-12-18 18:00:47,875 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 51 states and 100 transitions. [2018-12-18 18:00:47,990 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 100 edges. 100 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 18:00:47,992 INFO L225 Difference]: With dead ends: 100 [2018-12-18 18:00:47,992 INFO L226 Difference]: Without dead ends: 99 [2018-12-18 18:00:47,993 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4896 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=2654, Invalid=19102, Unknown=0, NotChecked=0, Total=21756 [2018-12-18 18:00:47,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-12-18 18:00:48,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2018-12-18 18:00:48,091 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 18:00:48,091 INFO L82 GeneralOperation]: Start isEquivalent. First operand 99 states. Second operand 98 states. [2018-12-18 18:00:48,091 INFO L74 IsIncluded]: Start isIncluded. First operand 99 states. Second operand 98 states. [2018-12-18 18:00:48,091 INFO L87 Difference]: Start difference. First operand 99 states. Second operand 98 states. [2018-12-18 18:00:48,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:00:48,093 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2018-12-18 18:00:48,093 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2018-12-18 18:00:48,093 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 18:00:48,093 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 18:00:48,093 INFO L74 IsIncluded]: Start isIncluded. First operand 98 states. Second operand 99 states. [2018-12-18 18:00:48,093 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 99 states. [2018-12-18 18:00:48,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:00:48,095 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2018-12-18 18:00:48,095 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2018-12-18 18:00:48,095 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 18:00:48,095 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 18:00:48,095 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 18:00:48,095 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 18:00:48,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-12-18 18:00:48,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 98 transitions. [2018-12-18 18:00:48,096 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 98 transitions. Word has length 95 [2018-12-18 18:00:48,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 18:00:48,096 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 98 transitions. [2018-12-18 18:00:48,096 INFO L481 AbstractCegarLoop]: Interpolant automaton has 99 states. [2018-12-18 18:00:48,096 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 98 transitions. [2018-12-18 18:00:48,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-12-18 18:00:48,097 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 18:00:48,097 INFO L402 BasicCegarLoop]: trace histogram [48, 47, 1, 1] [2018-12-18 18:00:48,097 INFO L423 AbstractCegarLoop]: === Iteration 48 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 18:00:48,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 18:00:48,097 INFO L82 PathProgramCache]: Analyzing trace with hash 2107994238, now seen corresponding path program 47 times [2018-12-18 18:00:48,097 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 18:00:48,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 18:00:48,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 18:00:48,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 18:00:48,098 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 18:00:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 18:00:50,905 INFO L273 TraceCheckUtils]: 0: Hoare triple {29701#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {29703#(and (or (<= main_i 0) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 0 main_i) (< 47 main_n)))} is VALID [2018-12-18 18:00:50,906 INFO L273 TraceCheckUtils]: 1: Hoare triple {29703#(and (or (<= main_i 0) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 0 main_i) (< 47 main_n)))} assume a[i] != 23;i := i + 4; {29704#(and (or (<= main_i 4) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 4 main_i)))} is VALID [2018-12-18 18:00:50,907 INFO L273 TraceCheckUtils]: 2: Hoare triple {29704#(and (or (<= main_i 4) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 4 main_i)))} assume i <= n * 4; {29704#(and (or (<= main_i 4) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 4 main_i)))} is VALID [2018-12-18 18:00:50,908 INFO L273 TraceCheckUtils]: 3: Hoare triple {29704#(and (or (<= main_i 4) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 4 main_i)))} assume a[i] != 23;i := i + 4; {29705#(and (or (< 47 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,909 INFO L273 TraceCheckUtils]: 4: Hoare triple {29705#(and (or (< 47 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29705#(and (or (< 47 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,910 INFO L273 TraceCheckUtils]: 5: Hoare triple {29705#(and (or (< 47 main_n) (<= 8 main_i)) (or (<= main_i 8) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29706#(and (or (<= main_n 47) (<= main_i 12)) (or (< 47 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,911 INFO L273 TraceCheckUtils]: 6: Hoare triple {29706#(and (or (<= main_n 47) (<= main_i 12)) (or (< 47 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29706#(and (or (<= main_n 47) (<= main_i 12)) (or (< 47 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,912 INFO L273 TraceCheckUtils]: 7: Hoare triple {29706#(and (or (<= main_n 47) (<= main_i 12)) (or (< 47 main_n) (<= 12 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29707#(and (or (<= main_i 16) (<= main_n 47)) (or (< 47 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,912 INFO L273 TraceCheckUtils]: 8: Hoare triple {29707#(and (or (<= main_i 16) (<= main_n 47)) (or (< 47 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29707#(and (or (<= main_i 16) (<= main_n 47)) (or (< 47 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,913 INFO L273 TraceCheckUtils]: 9: Hoare triple {29707#(and (or (<= main_i 16) (<= main_n 47)) (or (< 47 main_n) (<= 16 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29708#(and (or (<= main_i 20) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 20 main_i)))} is VALID [2018-12-18 18:00:50,914 INFO L273 TraceCheckUtils]: 10: Hoare triple {29708#(and (or (<= main_i 20) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 20 main_i)))} assume i <= n * 4; {29708#(and (or (<= main_i 20) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 20 main_i)))} is VALID [2018-12-18 18:00:50,915 INFO L273 TraceCheckUtils]: 11: Hoare triple {29708#(and (or (<= main_i 20) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 20 main_i)))} assume a[i] != 23;i := i + 4; {29709#(and (or (<= main_i 24) (<= main_n 47)) (or (< 47 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,916 INFO L273 TraceCheckUtils]: 12: Hoare triple {29709#(and (or (<= main_i 24) (<= main_n 47)) (or (< 47 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29709#(and (or (<= main_i 24) (<= main_n 47)) (or (< 47 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,917 INFO L273 TraceCheckUtils]: 13: Hoare triple {29709#(and (or (<= main_i 24) (<= main_n 47)) (or (< 47 main_n) (<= 24 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29710#(and (or (<= main_n 47) (<= main_i 28)) (or (<= 28 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,918 INFO L273 TraceCheckUtils]: 14: Hoare triple {29710#(and (or (<= main_n 47) (<= main_i 28)) (or (<= 28 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29710#(and (or (<= main_n 47) (<= main_i 28)) (or (<= 28 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,919 INFO L273 TraceCheckUtils]: 15: Hoare triple {29710#(and (or (<= main_n 47) (<= main_i 28)) (or (<= 28 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29711#(and (or (<= 32 main_i) (< 47 main_n)) (or (<= main_i 32) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,919 INFO L273 TraceCheckUtils]: 16: Hoare triple {29711#(and (or (<= 32 main_i) (< 47 main_n)) (or (<= main_i 32) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29711#(and (or (<= 32 main_i) (< 47 main_n)) (or (<= main_i 32) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,920 INFO L273 TraceCheckUtils]: 17: Hoare triple {29711#(and (or (<= 32 main_i) (< 47 main_n)) (or (<= main_i 32) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29712#(and (or (<= main_i 36) (<= main_n 47)) (or (< 47 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,921 INFO L273 TraceCheckUtils]: 18: Hoare triple {29712#(and (or (<= main_i 36) (<= main_n 47)) (or (< 47 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29712#(and (or (<= main_i 36) (<= main_n 47)) (or (< 47 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,922 INFO L273 TraceCheckUtils]: 19: Hoare triple {29712#(and (or (<= main_i 36) (<= main_n 47)) (or (< 47 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29713#(and (or (<= 40 main_i) (< 47 main_n)) (or (<= main_i 40) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,923 INFO L273 TraceCheckUtils]: 20: Hoare triple {29713#(and (or (<= 40 main_i) (< 47 main_n)) (or (<= main_i 40) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29713#(and (or (<= 40 main_i) (< 47 main_n)) (or (<= main_i 40) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,924 INFO L273 TraceCheckUtils]: 21: Hoare triple {29713#(and (or (<= 40 main_i) (< 47 main_n)) (or (<= main_i 40) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29714#(and (or (<= main_n 47) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 47 main_n)))} is VALID [2018-12-18 18:00:50,925 INFO L273 TraceCheckUtils]: 22: Hoare triple {29714#(and (or (<= main_n 47) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 47 main_n)))} assume i <= n * 4; {29714#(and (or (<= main_n 47) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 47 main_n)))} is VALID [2018-12-18 18:00:50,926 INFO L273 TraceCheckUtils]: 23: Hoare triple {29714#(and (or (<= main_n 47) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 47 main_n)))} assume a[i] != 23;i := i + 4; {29715#(and (or (<= main_i 48) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 47 main_n)))} is VALID [2018-12-18 18:00:50,926 INFO L273 TraceCheckUtils]: 24: Hoare triple {29715#(and (or (<= main_i 48) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 47 main_n)))} assume i <= n * 4; {29715#(and (or (<= main_i 48) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 47 main_n)))} is VALID [2018-12-18 18:00:50,927 INFO L273 TraceCheckUtils]: 25: Hoare triple {29715#(and (or (<= main_i 48) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 47 main_n)))} assume a[i] != 23;i := i + 4; {29716#(and (or (< 47 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,928 INFO L273 TraceCheckUtils]: 26: Hoare triple {29716#(and (or (< 47 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29716#(and (or (< 47 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,929 INFO L273 TraceCheckUtils]: 27: Hoare triple {29716#(and (or (< 47 main_n) (<= 52 main_i)) (or (<= main_i 52) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29717#(and (or (<= main_i 56) (<= main_n 47)) (or (< 47 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,930 INFO L273 TraceCheckUtils]: 28: Hoare triple {29717#(and (or (<= main_i 56) (<= main_n 47)) (or (< 47 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29717#(and (or (<= main_i 56) (<= main_n 47)) (or (< 47 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,931 INFO L273 TraceCheckUtils]: 29: Hoare triple {29717#(and (or (<= main_i 56) (<= main_n 47)) (or (< 47 main_n) (<= 56 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29718#(and (or (< 47 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,932 INFO L273 TraceCheckUtils]: 30: Hoare triple {29718#(and (or (< 47 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29718#(and (or (< 47 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,933 INFO L273 TraceCheckUtils]: 31: Hoare triple {29718#(and (or (< 47 main_n) (<= 60 main_i)) (or (<= main_i 60) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29719#(and (or (<= 64 main_i) (< 47 main_n)) (or (<= main_i 64) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,933 INFO L273 TraceCheckUtils]: 32: Hoare triple {29719#(and (or (<= 64 main_i) (< 47 main_n)) (or (<= main_i 64) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29719#(and (or (<= 64 main_i) (< 47 main_n)) (or (<= main_i 64) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,934 INFO L273 TraceCheckUtils]: 33: Hoare triple {29719#(and (or (<= 64 main_i) (< 47 main_n)) (or (<= main_i 64) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29720#(and (or (< 47 main_n) (<= 68 main_i)) (or (<= main_n 47) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,935 INFO L273 TraceCheckUtils]: 34: Hoare triple {29720#(and (or (< 47 main_n) (<= 68 main_i)) (or (<= main_n 47) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29720#(and (or (< 47 main_n) (<= 68 main_i)) (or (<= main_n 47) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,936 INFO L273 TraceCheckUtils]: 35: Hoare triple {29720#(and (or (< 47 main_n) (<= 68 main_i)) (or (<= main_n 47) (<= main_i 68)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29721#(and (or (<= 72 main_i) (< 47 main_n)) (or (<= main_i 72) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,937 INFO L273 TraceCheckUtils]: 36: Hoare triple {29721#(and (or (<= 72 main_i) (< 47 main_n)) (or (<= main_i 72) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29721#(and (or (<= 72 main_i) (< 47 main_n)) (or (<= main_i 72) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,938 INFO L273 TraceCheckUtils]: 37: Hoare triple {29721#(and (or (<= 72 main_i) (< 47 main_n)) (or (<= main_i 72) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29722#(and (or (<= main_i 76) (<= main_n 47)) (or (<= 76 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,939 INFO L273 TraceCheckUtils]: 38: Hoare triple {29722#(and (or (<= main_i 76) (<= main_n 47)) (or (<= 76 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29722#(and (or (<= main_i 76) (<= main_n 47)) (or (<= 76 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,940 INFO L273 TraceCheckUtils]: 39: Hoare triple {29722#(and (or (<= main_i 76) (<= main_n 47)) (or (<= 76 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29723#(and (or (< 47 main_n) (<= 80 main_i)) (or (<= main_n 47) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,940 INFO L273 TraceCheckUtils]: 40: Hoare triple {29723#(and (or (< 47 main_n) (<= 80 main_i)) (or (<= main_n 47) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29723#(and (or (< 47 main_n) (<= 80 main_i)) (or (<= main_n 47) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,941 INFO L273 TraceCheckUtils]: 41: Hoare triple {29723#(and (or (< 47 main_n) (<= 80 main_i)) (or (<= main_n 47) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29724#(and (or (< 47 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 47)))} is VALID [2018-12-18 18:00:50,942 INFO L273 TraceCheckUtils]: 42: Hoare triple {29724#(and (or (< 47 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 47)))} assume i <= n * 4; {29724#(and (or (< 47 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 47)))} is VALID [2018-12-18 18:00:50,943 INFO L273 TraceCheckUtils]: 43: Hoare triple {29724#(and (or (< 47 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 84) (<= main_n 47)))} assume a[i] != 23;i := i + 4; {29725#(and (or (<= main_i 88) (<= main_n 47)) (or (< 47 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,944 INFO L273 TraceCheckUtils]: 44: Hoare triple {29725#(and (or (<= main_i 88) (<= main_n 47)) (or (< 47 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29725#(and (or (<= main_i 88) (<= main_n 47)) (or (< 47 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,945 INFO L273 TraceCheckUtils]: 45: Hoare triple {29725#(and (or (<= main_i 88) (<= main_n 47)) (or (< 47 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29726#(and (or (<= main_i 92) (<= main_n 47)) (or (< 47 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,946 INFO L273 TraceCheckUtils]: 46: Hoare triple {29726#(and (or (<= main_i 92) (<= main_n 47)) (or (< 47 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29726#(and (or (<= main_i 92) (<= main_n 47)) (or (< 47 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,947 INFO L273 TraceCheckUtils]: 47: Hoare triple {29726#(and (or (<= main_i 92) (<= main_n 47)) (or (< 47 main_n) (<= 92 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29727#(and (or (< 47 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 47)))} is VALID [2018-12-18 18:00:50,947 INFO L273 TraceCheckUtils]: 48: Hoare triple {29727#(and (or (< 47 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 47)))} assume i <= n * 4; {29727#(and (or (< 47 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 47)))} is VALID [2018-12-18 18:00:50,948 INFO L273 TraceCheckUtils]: 49: Hoare triple {29727#(and (or (< 47 main_n) (<= 96 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 47)))} assume a[i] != 23;i := i + 4; {29728#(and (or (<= main_i 100) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 100 main_i)))} is VALID [2018-12-18 18:00:50,949 INFO L273 TraceCheckUtils]: 50: Hoare triple {29728#(and (or (<= main_i 100) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 100 main_i)))} assume i <= n * 4; {29728#(and (or (<= main_i 100) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 100 main_i)))} is VALID [2018-12-18 18:00:50,950 INFO L273 TraceCheckUtils]: 51: Hoare triple {29728#(and (or (<= main_i 100) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 100 main_i)))} assume a[i] != 23;i := i + 4; {29729#(and (or (< 47 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,951 INFO L273 TraceCheckUtils]: 52: Hoare triple {29729#(and (or (< 47 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29729#(and (or (< 47 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,952 INFO L273 TraceCheckUtils]: 53: Hoare triple {29729#(and (or (< 47 main_n) (<= 104 main_i)) (or (<= main_i 104) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29730#(and (or (<= main_i 108) (<= main_n 47)) (or (< 47 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,953 INFO L273 TraceCheckUtils]: 54: Hoare triple {29730#(and (or (<= main_i 108) (<= main_n 47)) (or (< 47 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29730#(and (or (<= main_i 108) (<= main_n 47)) (or (< 47 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,954 INFO L273 TraceCheckUtils]: 55: Hoare triple {29730#(and (or (<= main_i 108) (<= main_n 47)) (or (< 47 main_n) (<= 108 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29731#(and (or (< 47 main_n) (<= 112 main_i)) (or (<= main_n 47) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,954 INFO L273 TraceCheckUtils]: 56: Hoare triple {29731#(and (or (< 47 main_n) (<= 112 main_i)) (or (<= main_n 47) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29731#(and (or (< 47 main_n) (<= 112 main_i)) (or (<= main_n 47) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,955 INFO L273 TraceCheckUtils]: 57: Hoare triple {29731#(and (or (< 47 main_n) (<= 112 main_i)) (or (<= main_n 47) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29732#(and (or (<= main_i 116) (<= main_n 47)) (or (<= 116 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,956 INFO L273 TraceCheckUtils]: 58: Hoare triple {29732#(and (or (<= main_i 116) (<= main_n 47)) (or (<= 116 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29732#(and (or (<= main_i 116) (<= main_n 47)) (or (<= 116 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,957 INFO L273 TraceCheckUtils]: 59: Hoare triple {29732#(and (or (<= main_i 116) (<= main_n 47)) (or (<= 116 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29733#(and (or (<= main_i 120) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 120 main_i) (< 47 main_n)))} is VALID [2018-12-18 18:00:50,958 INFO L273 TraceCheckUtils]: 60: Hoare triple {29733#(and (or (<= main_i 120) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 120 main_i) (< 47 main_n)))} assume i <= n * 4; {29733#(and (or (<= main_i 120) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 120 main_i) (< 47 main_n)))} is VALID [2018-12-18 18:00:50,959 INFO L273 TraceCheckUtils]: 61: Hoare triple {29733#(and (or (<= main_i 120) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (<= 120 main_i) (< 47 main_n)))} assume a[i] != 23;i := i + 4; {29734#(and (or (<= main_i 124) (<= main_n 47)) (or (<= 124 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,960 INFO L273 TraceCheckUtils]: 62: Hoare triple {29734#(and (or (<= main_i 124) (<= main_n 47)) (or (<= 124 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29734#(and (or (<= main_i 124) (<= main_n 47)) (or (<= 124 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,961 INFO L273 TraceCheckUtils]: 63: Hoare triple {29734#(and (or (<= main_i 124) (<= main_n 47)) (or (<= 124 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29735#(and (or (<= main_i 128) (<= main_n 47)) (or (< 47 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,961 INFO L273 TraceCheckUtils]: 64: Hoare triple {29735#(and (or (<= main_i 128) (<= main_n 47)) (or (< 47 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29735#(and (or (<= main_i 128) (<= main_n 47)) (or (< 47 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,962 INFO L273 TraceCheckUtils]: 65: Hoare triple {29735#(and (or (<= main_i 128) (<= main_n 47)) (or (< 47 main_n) (<= 128 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29736#(and (or (<= 132 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 132) (<= main_n 47)))} is VALID [2018-12-18 18:00:50,963 INFO L273 TraceCheckUtils]: 66: Hoare triple {29736#(and (or (<= 132 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 132) (<= main_n 47)))} assume i <= n * 4; {29736#(and (or (<= 132 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 132) (<= main_n 47)))} is VALID [2018-12-18 18:00:50,964 INFO L273 TraceCheckUtils]: 67: Hoare triple {29736#(and (or (<= 132 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 132) (<= main_n 47)))} assume a[i] != 23;i := i + 4; {29737#(and (or (<= main_i 136) (<= main_n 47)) (or (<= 136 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,965 INFO L273 TraceCheckUtils]: 68: Hoare triple {29737#(and (or (<= main_i 136) (<= main_n 47)) (or (<= 136 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29737#(and (or (<= main_i 136) (<= main_n 47)) (or (<= 136 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,966 INFO L273 TraceCheckUtils]: 69: Hoare triple {29737#(and (or (<= main_i 136) (<= main_n 47)) (or (<= 136 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29738#(and (or (<= main_n 47) (<= main_i 140)) (or (< 47 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,967 INFO L273 TraceCheckUtils]: 70: Hoare triple {29738#(and (or (<= main_n 47) (<= main_i 140)) (or (< 47 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29738#(and (or (<= main_n 47) (<= main_i 140)) (or (< 47 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,968 INFO L273 TraceCheckUtils]: 71: Hoare triple {29738#(and (or (<= main_n 47) (<= main_i 140)) (or (< 47 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29739#(and (or (<= main_n 47) (<= main_i 144)) (or (< 47 main_n) (<= 144 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,968 INFO L273 TraceCheckUtils]: 72: Hoare triple {29739#(and (or (<= main_n 47) (<= main_i 144)) (or (< 47 main_n) (<= 144 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29739#(and (or (<= main_n 47) (<= main_i 144)) (or (< 47 main_n) (<= 144 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,969 INFO L273 TraceCheckUtils]: 73: Hoare triple {29739#(and (or (<= main_n 47) (<= main_i 144)) (or (< 47 main_n) (<= 144 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29740#(and (or (<= main_i 148) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 148 main_i)))} is VALID [2018-12-18 18:00:50,970 INFO L273 TraceCheckUtils]: 74: Hoare triple {29740#(and (or (<= main_i 148) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 148 main_i)))} assume i <= n * 4; {29740#(and (or (<= main_i 148) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 148 main_i)))} is VALID [2018-12-18 18:00:50,971 INFO L273 TraceCheckUtils]: 75: Hoare triple {29740#(and (or (<= main_i 148) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))) (or (< 47 main_n) (<= 148 main_i)))} assume a[i] != 23;i := i + 4; {29741#(and (or (<= main_n 47) (<= main_i 152)) (or (<= 152 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,972 INFO L273 TraceCheckUtils]: 76: Hoare triple {29741#(and (or (<= main_n 47) (<= main_i 152)) (or (<= 152 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29741#(and (or (<= main_n 47) (<= main_i 152)) (or (<= 152 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,973 INFO L273 TraceCheckUtils]: 77: Hoare triple {29741#(and (or (<= main_n 47) (<= main_i 152)) (or (<= 152 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29742#(and (or (<= 156 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 156) (<= main_n 47)))} is VALID [2018-12-18 18:00:50,974 INFO L273 TraceCheckUtils]: 78: Hoare triple {29742#(and (or (<= 156 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 156) (<= main_n 47)))} assume i <= n * 4; {29742#(and (or (<= 156 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 156) (<= main_n 47)))} is VALID [2018-12-18 18:00:50,975 INFO L273 TraceCheckUtils]: 79: Hoare triple {29742#(and (or (<= 156 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 156) (<= main_n 47)))} assume a[i] != 23;i := i + 4; {29743#(and (or (<= 160 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 47) (<= main_i 160)))} is VALID [2018-12-18 18:00:50,975 INFO L273 TraceCheckUtils]: 80: Hoare triple {29743#(and (or (<= 160 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 47) (<= main_i 160)))} assume i <= n * 4; {29743#(and (or (<= 160 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 47) (<= main_i 160)))} is VALID [2018-12-18 18:00:50,976 INFO L273 TraceCheckUtils]: 81: Hoare triple {29743#(and (or (<= 160 main_i) (< 47 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 47) (<= main_i 160)))} assume a[i] != 23;i := i + 4; {29744#(and (or (<= 164 main_i) (< 47 main_n)) (or (<= main_i 164) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,977 INFO L273 TraceCheckUtils]: 82: Hoare triple {29744#(and (or (<= 164 main_i) (< 47 main_n)) (or (<= main_i 164) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29744#(and (or (<= 164 main_i) (< 47 main_n)) (or (<= main_i 164) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,978 INFO L273 TraceCheckUtils]: 83: Hoare triple {29744#(and (or (<= 164 main_i) (< 47 main_n)) (or (<= main_i 164) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29745#(and (or (<= 168 main_i) (< 47 main_n)) (or (<= main_i 168) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,979 INFO L273 TraceCheckUtils]: 84: Hoare triple {29745#(and (or (<= 168 main_i) (< 47 main_n)) (or (<= main_i 168) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29745#(and (or (<= 168 main_i) (< 47 main_n)) (or (<= main_i 168) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,980 INFO L273 TraceCheckUtils]: 85: Hoare triple {29745#(and (or (<= 168 main_i) (< 47 main_n)) (or (<= main_i 168) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29746#(and (or (<= main_i 172) (<= main_n 47)) (or (< 47 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,981 INFO L273 TraceCheckUtils]: 86: Hoare triple {29746#(and (or (<= main_i 172) (<= main_n 47)) (or (< 47 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29746#(and (or (<= main_i 172) (<= main_n 47)) (or (< 47 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,982 INFO L273 TraceCheckUtils]: 87: Hoare triple {29746#(and (or (<= main_i 172) (<= main_n 47)) (or (< 47 main_n) (<= 172 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29747#(and (or (<= 176 main_i) (< 47 main_n)) (or (<= main_i 176) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,982 INFO L273 TraceCheckUtils]: 88: Hoare triple {29747#(and (or (<= 176 main_i) (< 47 main_n)) (or (<= main_i 176) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29747#(and (or (<= 176 main_i) (< 47 main_n)) (or (<= main_i 176) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,984 INFO L273 TraceCheckUtils]: 89: Hoare triple {29747#(and (or (<= 176 main_i) (< 47 main_n)) (or (<= main_i 176) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29748#(and (or (<= main_i 180) (<= main_n 47)) (or (< 47 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,984 INFO L273 TraceCheckUtils]: 90: Hoare triple {29748#(and (or (<= main_i 180) (<= main_n 47)) (or (< 47 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29748#(and (or (<= main_i 180) (<= main_n 47)) (or (< 47 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,985 INFO L273 TraceCheckUtils]: 91: Hoare triple {29748#(and (or (<= main_i 180) (<= main_n 47)) (or (< 47 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29749#(and (or (< 47 main_n) (<= 184 main_i)) (or (<= main_i 184) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,986 INFO L273 TraceCheckUtils]: 92: Hoare triple {29749#(and (or (< 47 main_n) (<= 184 main_i)) (or (<= main_i 184) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29749#(and (or (< 47 main_n) (<= 184 main_i)) (or (<= main_i 184) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:50,987 INFO L273 TraceCheckUtils]: 93: Hoare triple {29749#(and (or (< 47 main_n) (<= 184 main_i)) (or (<= main_i 184) (<= main_n 47)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29750#(and (or (= (* 4 main_n) main_i) (and (or (< 47 main_n) (<= (* 4 main_n) main_i)) (or (<= main_i 188) (<= main_n 47)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2018-12-18 18:00:50,988 INFO L273 TraceCheckUtils]: 94: Hoare triple {29750#(and (or (= (* 4 main_n) main_i) (and (or (< 47 main_n) (<= (* 4 main_n) main_i)) (or (<= main_i 188) (<= main_n 47)))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume i <= n * 4; {29751#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 188) (< 47 main_n))))} is VALID [2018-12-18 18:00:50,989 INFO L273 TraceCheckUtils]: 95: Hoare triple {29751#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 188) (< 47 main_n))))} assume a[i] != 23;i := i + 4; {29752#(and (<= main_i 192) (<= 48 main_n))} is VALID [2018-12-18 18:00:50,990 INFO L273 TraceCheckUtils]: 96: Hoare triple {29752#(and (<= main_i 192) (<= 48 main_n))} assume !(i <= n * 4); {29702#false} is VALID [2018-12-18 18:00:51,030 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 2256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:00:51,031 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 18:00:51,031 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 18:00:51,031 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 18:00:51,031 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 18:00:51,031 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 18:00:51,031 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 18:00:51,039 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-18 18:00:51,039 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-18 18:00:51,108 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 48 check-sat command(s) [2018-12-18 18:00:51,108 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 18:00:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 18:00:51,143 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 18:00:51,241 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 18:00:51,266 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 18:00:51,337 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 18:00:51,337 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 18:00:51,352 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 18:00:51,352 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_51]. (and (= (store v_main_a_51 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 18:00:51,352 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 18:00:55,468 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 18:00:55,470 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 18:00:55,476 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 18:00:55,476 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 18:00:55,478 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 18:00:55,479 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 188 .cse0) (<= main_i 192) (= 23 (select main_a .cse0)) (not (= (select main_a 188) 23)))) [2018-12-18 18:00:55,479 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 188 .cse0) (not (= 188 .cse0)) (<= main_i 192))) [2018-12-18 18:00:55,537 INFO L273 TraceCheckUtils]: 0: Hoare triple {29701#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {29756#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,538 INFO L273 TraceCheckUtils]: 1: Hoare triple {29756#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29760#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 18:00:55,538 INFO L273 TraceCheckUtils]: 2: Hoare triple {29760#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {29760#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 18:00:55,539 INFO L273 TraceCheckUtils]: 3: Hoare triple {29760#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {29767#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,539 INFO L273 TraceCheckUtils]: 4: Hoare triple {29767#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29767#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,540 INFO L273 TraceCheckUtils]: 5: Hoare triple {29767#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29774#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 18:00:55,541 INFO L273 TraceCheckUtils]: 6: Hoare triple {29774#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {29774#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 18:00:55,541 INFO L273 TraceCheckUtils]: 7: Hoare triple {29774#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {29781#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,542 INFO L273 TraceCheckUtils]: 8: Hoare triple {29781#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29781#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,543 INFO L273 TraceCheckUtils]: 9: Hoare triple {29781#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29788#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,543 INFO L273 TraceCheckUtils]: 10: Hoare triple {29788#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29788#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,544 INFO L273 TraceCheckUtils]: 11: Hoare triple {29788#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29795#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,545 INFO L273 TraceCheckUtils]: 12: Hoare triple {29795#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29795#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,545 INFO L273 TraceCheckUtils]: 13: Hoare triple {29795#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29802#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,546 INFO L273 TraceCheckUtils]: 14: Hoare triple {29802#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29802#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,547 INFO L273 TraceCheckUtils]: 15: Hoare triple {29802#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29809#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,547 INFO L273 TraceCheckUtils]: 16: Hoare triple {29809#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29809#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,548 INFO L273 TraceCheckUtils]: 17: Hoare triple {29809#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29816#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,549 INFO L273 TraceCheckUtils]: 18: Hoare triple {29816#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29816#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,549 INFO L273 TraceCheckUtils]: 19: Hoare triple {29816#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29823#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,550 INFO L273 TraceCheckUtils]: 20: Hoare triple {29823#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29823#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,551 INFO L273 TraceCheckUtils]: 21: Hoare triple {29823#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29830#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,551 INFO L273 TraceCheckUtils]: 22: Hoare triple {29830#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29830#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,552 INFO L273 TraceCheckUtils]: 23: Hoare triple {29830#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29837#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,553 INFO L273 TraceCheckUtils]: 24: Hoare triple {29837#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29837#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,553 INFO L273 TraceCheckUtils]: 25: Hoare triple {29837#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29844#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,554 INFO L273 TraceCheckUtils]: 26: Hoare triple {29844#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29844#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,555 INFO L273 TraceCheckUtils]: 27: Hoare triple {29844#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29851#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,555 INFO L273 TraceCheckUtils]: 28: Hoare triple {29851#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29851#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,556 INFO L273 TraceCheckUtils]: 29: Hoare triple {29851#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29858#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,557 INFO L273 TraceCheckUtils]: 30: Hoare triple {29858#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29858#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,557 INFO L273 TraceCheckUtils]: 31: Hoare triple {29858#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29865#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,558 INFO L273 TraceCheckUtils]: 32: Hoare triple {29865#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29865#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,559 INFO L273 TraceCheckUtils]: 33: Hoare triple {29865#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29872#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,559 INFO L273 TraceCheckUtils]: 34: Hoare triple {29872#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29872#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,560 INFO L273 TraceCheckUtils]: 35: Hoare triple {29872#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29879#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,561 INFO L273 TraceCheckUtils]: 36: Hoare triple {29879#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29879#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,561 INFO L273 TraceCheckUtils]: 37: Hoare triple {29879#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29886#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,562 INFO L273 TraceCheckUtils]: 38: Hoare triple {29886#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29886#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,563 INFO L273 TraceCheckUtils]: 39: Hoare triple {29886#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29893#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 18:00:55,563 INFO L273 TraceCheckUtils]: 40: Hoare triple {29893#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {29893#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 18:00:55,564 INFO L273 TraceCheckUtils]: 41: Hoare triple {29893#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {29900#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,565 INFO L273 TraceCheckUtils]: 42: Hoare triple {29900#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29900#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,566 INFO L273 TraceCheckUtils]: 43: Hoare triple {29900#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29907#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,566 INFO L273 TraceCheckUtils]: 44: Hoare triple {29907#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29907#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,567 INFO L273 TraceCheckUtils]: 45: Hoare triple {29907#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29914#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,568 INFO L273 TraceCheckUtils]: 46: Hoare triple {29914#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29914#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,568 INFO L273 TraceCheckUtils]: 47: Hoare triple {29914#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29921#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,569 INFO L273 TraceCheckUtils]: 48: Hoare triple {29921#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29921#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,570 INFO L273 TraceCheckUtils]: 49: Hoare triple {29921#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29928#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,570 INFO L273 TraceCheckUtils]: 50: Hoare triple {29928#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29928#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,571 INFO L273 TraceCheckUtils]: 51: Hoare triple {29928#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29935#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,572 INFO L273 TraceCheckUtils]: 52: Hoare triple {29935#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29935#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,572 INFO L273 TraceCheckUtils]: 53: Hoare triple {29935#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29942#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,573 INFO L273 TraceCheckUtils]: 54: Hoare triple {29942#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29942#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,574 INFO L273 TraceCheckUtils]: 55: Hoare triple {29942#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29949#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,574 INFO L273 TraceCheckUtils]: 56: Hoare triple {29949#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29949#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,575 INFO L273 TraceCheckUtils]: 57: Hoare triple {29949#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29956#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,576 INFO L273 TraceCheckUtils]: 58: Hoare triple {29956#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29956#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,576 INFO L273 TraceCheckUtils]: 59: Hoare triple {29956#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29963#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,577 INFO L273 TraceCheckUtils]: 60: Hoare triple {29963#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29963#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,578 INFO L273 TraceCheckUtils]: 61: Hoare triple {29963#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29970#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,578 INFO L273 TraceCheckUtils]: 62: Hoare triple {29970#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29970#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,579 INFO L273 TraceCheckUtils]: 63: Hoare triple {29970#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29977#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,580 INFO L273 TraceCheckUtils]: 64: Hoare triple {29977#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29977#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,580 INFO L273 TraceCheckUtils]: 65: Hoare triple {29977#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29984#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,581 INFO L273 TraceCheckUtils]: 66: Hoare triple {29984#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29984#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,582 INFO L273 TraceCheckUtils]: 67: Hoare triple {29984#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29991#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,582 INFO L273 TraceCheckUtils]: 68: Hoare triple {29991#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {29991#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,583 INFO L273 TraceCheckUtils]: 69: Hoare triple {29991#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29998#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 18:00:55,584 INFO L273 TraceCheckUtils]: 70: Hoare triple {29998#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {29998#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 18:00:55,585 INFO L273 TraceCheckUtils]: 71: Hoare triple {29998#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {30005#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,585 INFO L273 TraceCheckUtils]: 72: Hoare triple {30005#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30005#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,586 INFO L273 TraceCheckUtils]: 73: Hoare triple {30005#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30012#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,587 INFO L273 TraceCheckUtils]: 74: Hoare triple {30012#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30012#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,587 INFO L273 TraceCheckUtils]: 75: Hoare triple {30012#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30019#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,588 INFO L273 TraceCheckUtils]: 76: Hoare triple {30019#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30019#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,589 INFO L273 TraceCheckUtils]: 77: Hoare triple {30019#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30026#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,589 INFO L273 TraceCheckUtils]: 78: Hoare triple {30026#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30026#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,590 INFO L273 TraceCheckUtils]: 79: Hoare triple {30026#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30033#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,591 INFO L273 TraceCheckUtils]: 80: Hoare triple {30033#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30033#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,591 INFO L273 TraceCheckUtils]: 81: Hoare triple {30033#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30040#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 18:00:55,592 INFO L273 TraceCheckUtils]: 82: Hoare triple {30040#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {30040#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 18:00:55,593 INFO L273 TraceCheckUtils]: 83: Hoare triple {30040#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {30047#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,593 INFO L273 TraceCheckUtils]: 84: Hoare triple {30047#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30047#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,594 INFO L273 TraceCheckUtils]: 85: Hoare triple {30047#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30054#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,595 INFO L273 TraceCheckUtils]: 86: Hoare triple {30054#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30054#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,595 INFO L273 TraceCheckUtils]: 87: Hoare triple {30054#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30061#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,596 INFO L273 TraceCheckUtils]: 88: Hoare triple {30061#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30061#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,597 INFO L273 TraceCheckUtils]: 89: Hoare triple {30061#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30068#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,597 INFO L273 TraceCheckUtils]: 90: Hoare triple {30068#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30068#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,598 INFO L273 TraceCheckUtils]: 91: Hoare triple {30068#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30075#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,599 INFO L273 TraceCheckUtils]: 92: Hoare triple {30075#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30075#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,599 INFO L273 TraceCheckUtils]: 93: Hoare triple {30075#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30082#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,600 INFO L273 TraceCheckUtils]: 94: Hoare triple {30082#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30086#(and (= main_i 188) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:00:55,601 INFO L273 TraceCheckUtils]: 95: Hoare triple {30086#(and (= main_i 188) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {29752#(and (<= main_i 192) (<= 48 main_n))} is VALID [2018-12-18 18:00:55,602 INFO L273 TraceCheckUtils]: 96: Hoare triple {29752#(and (<= main_i 192) (<= 48 main_n))} assume !(i <= n * 4); {29702#false} is VALID [2018-12-18 18:00:55,622 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 2256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:00:55,622 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 18:01:02,055 INFO L273 TraceCheckUtils]: 96: Hoare triple {30093#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {29702#false} is VALID [2018-12-18 18:01:02,056 INFO L273 TraceCheckUtils]: 95: Hoare triple {30097#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {30093#(<= main_i (* 4 main_n))} is VALID [2018-12-18 18:01:02,056 INFO L273 TraceCheckUtils]: 94: Hoare triple {30101#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {30097#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 18:01:02,057 INFO L273 TraceCheckUtils]: 93: Hoare triple {30105#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {30101#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 18:01:02,057 INFO L273 TraceCheckUtils]: 92: Hoare triple {30105#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {30105#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 18:01:02,058 INFO L273 TraceCheckUtils]: 91: Hoare triple {30112#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {30105#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 18:01:02,058 INFO L273 TraceCheckUtils]: 90: Hoare triple {30112#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {30112#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 18:01:02,059 INFO L273 TraceCheckUtils]: 89: Hoare triple {30119#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {30112#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 18:01:02,060 INFO L273 TraceCheckUtils]: 88: Hoare triple {30119#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {30119#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 18:01:02,061 INFO L273 TraceCheckUtils]: 87: Hoare triple {30126#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {30119#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 18:01:02,062 INFO L273 TraceCheckUtils]: 86: Hoare triple {30126#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {30126#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 18:01:02,063 INFO L273 TraceCheckUtils]: 85: Hoare triple {30133#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30126#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 18:01:02,063 INFO L273 TraceCheckUtils]: 84: Hoare triple {30133#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {30133#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,064 INFO L273 TraceCheckUtils]: 83: Hoare triple {30140#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {30133#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,065 INFO L273 TraceCheckUtils]: 82: Hoare triple {30140#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {30140#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 18:01:02,066 INFO L273 TraceCheckUtils]: 81: Hoare triple {30147#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30140#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 18:01:02,067 INFO L273 TraceCheckUtils]: 80: Hoare triple {30147#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {30147#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,068 INFO L273 TraceCheckUtils]: 79: Hoare triple {30154#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30147#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,068 INFO L273 TraceCheckUtils]: 78: Hoare triple {30154#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {30154#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,070 INFO L273 TraceCheckUtils]: 77: Hoare triple {30161#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30154#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,070 INFO L273 TraceCheckUtils]: 76: Hoare triple {30161#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {30161#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,071 INFO L273 TraceCheckUtils]: 75: Hoare triple {30168#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {30161#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,072 INFO L273 TraceCheckUtils]: 74: Hoare triple {30168#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {30168#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 18:01:02,073 INFO L273 TraceCheckUtils]: 73: Hoare triple {30175#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30168#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 18:01:02,073 INFO L273 TraceCheckUtils]: 72: Hoare triple {30175#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {30175#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,075 INFO L273 TraceCheckUtils]: 71: Hoare triple {30182#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30175#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,075 INFO L273 TraceCheckUtils]: 70: Hoare triple {30182#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {30182#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,076 INFO L273 TraceCheckUtils]: 69: Hoare triple {30189#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {30182#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,077 INFO L273 TraceCheckUtils]: 68: Hoare triple {30189#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {30189#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 18:01:02,078 INFO L273 TraceCheckUtils]: 67: Hoare triple {30196#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30189#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 18:01:02,078 INFO L273 TraceCheckUtils]: 66: Hoare triple {30196#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {30196#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,080 INFO L273 TraceCheckUtils]: 65: Hoare triple {30203#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {30196#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,080 INFO L273 TraceCheckUtils]: 64: Hoare triple {30203#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {30203#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 18:01:02,081 INFO L273 TraceCheckUtils]: 63: Hoare triple {30210#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {30203#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 18:01:02,082 INFO L273 TraceCheckUtils]: 62: Hoare triple {30210#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {30210#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 18:01:02,083 INFO L273 TraceCheckUtils]: 61: Hoare triple {30217#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {30210#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 18:01:02,083 INFO L273 TraceCheckUtils]: 60: Hoare triple {30217#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {30217#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 18:01:02,085 INFO L273 TraceCheckUtils]: 59: Hoare triple {30224#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {30217#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 18:01:02,085 INFO L273 TraceCheckUtils]: 58: Hoare triple {30224#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {30224#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 18:01:02,086 INFO L273 TraceCheckUtils]: 57: Hoare triple {30231#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {30224#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 18:01:02,087 INFO L273 TraceCheckUtils]: 56: Hoare triple {30231#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {30231#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 18:01:02,088 INFO L273 TraceCheckUtils]: 55: Hoare triple {30238#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {30231#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 18:01:02,088 INFO L273 TraceCheckUtils]: 54: Hoare triple {30238#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {30238#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 18:01:02,090 INFO L273 TraceCheckUtils]: 53: Hoare triple {30245#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30238#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 18:01:02,090 INFO L273 TraceCheckUtils]: 52: Hoare triple {30245#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {30245#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,091 INFO L273 TraceCheckUtils]: 51: Hoare triple {30252#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30245#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,092 INFO L273 TraceCheckUtils]: 50: Hoare triple {30252#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {30252#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,093 INFO L273 TraceCheckUtils]: 49: Hoare triple {30259#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30252#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,093 INFO L273 TraceCheckUtils]: 48: Hoare triple {30259#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {30259#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,095 INFO L273 TraceCheckUtils]: 47: Hoare triple {30266#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {30259#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,095 INFO L273 TraceCheckUtils]: 46: Hoare triple {30266#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {30266#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 18:01:02,096 INFO L273 TraceCheckUtils]: 45: Hoare triple {30273#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30266#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 18:01:02,097 INFO L273 TraceCheckUtils]: 44: Hoare triple {30273#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {30273#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,098 INFO L273 TraceCheckUtils]: 43: Hoare triple {30280#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {30273#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,098 INFO L273 TraceCheckUtils]: 42: Hoare triple {30280#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {30280#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 18:01:02,100 INFO L273 TraceCheckUtils]: 41: Hoare triple {30287#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {30280#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 18:01:02,100 INFO L273 TraceCheckUtils]: 40: Hoare triple {30287#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {30287#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 18:01:02,101 INFO L273 TraceCheckUtils]: 39: Hoare triple {30294#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {30287#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 18:01:02,102 INFO L273 TraceCheckUtils]: 38: Hoare triple {30294#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {30294#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 18:01:02,103 INFO L273 TraceCheckUtils]: 37: Hoare triple {30301#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30294#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 18:01:02,103 INFO L273 TraceCheckUtils]: 36: Hoare triple {30301#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {30301#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,105 INFO L273 TraceCheckUtils]: 35: Hoare triple {30308#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30301#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,105 INFO L273 TraceCheckUtils]: 34: Hoare triple {30308#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {30308#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,106 INFO L273 TraceCheckUtils]: 33: Hoare triple {30315#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {30308#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,107 INFO L273 TraceCheckUtils]: 32: Hoare triple {30315#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {30315#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 18:01:02,108 INFO L273 TraceCheckUtils]: 31: Hoare triple {30322#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30315#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 18:01:02,108 INFO L273 TraceCheckUtils]: 30: Hoare triple {30322#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {30322#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,110 INFO L273 TraceCheckUtils]: 29: Hoare triple {30329#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {30322#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,110 INFO L273 TraceCheckUtils]: 28: Hoare triple {30329#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {30329#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 18:01:02,111 INFO L273 TraceCheckUtils]: 27: Hoare triple {30336#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {30329#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 18:01:02,112 INFO L273 TraceCheckUtils]: 26: Hoare triple {30336#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {30336#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 18:01:02,113 INFO L273 TraceCheckUtils]: 25: Hoare triple {30343#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {30336#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 18:01:02,114 INFO L273 TraceCheckUtils]: 24: Hoare triple {30343#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {30343#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 18:01:02,115 INFO L273 TraceCheckUtils]: 23: Hoare triple {30350#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {30343#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 18:01:02,115 INFO L273 TraceCheckUtils]: 22: Hoare triple {30350#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {30350#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 18:01:02,116 INFO L273 TraceCheckUtils]: 21: Hoare triple {30357#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {30350#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 18:01:02,117 INFO L273 TraceCheckUtils]: 20: Hoare triple {30357#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {30357#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 18:01:02,118 INFO L273 TraceCheckUtils]: 19: Hoare triple {30364#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {30357#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 18:01:02,118 INFO L273 TraceCheckUtils]: 18: Hoare triple {30364#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {30364#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 18:01:02,120 INFO L273 TraceCheckUtils]: 17: Hoare triple {30371#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {30364#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 18:01:02,120 INFO L273 TraceCheckUtils]: 16: Hoare triple {30371#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {30371#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 18:01:02,121 INFO L273 TraceCheckUtils]: 15: Hoare triple {30378#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {30371#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 18:01:02,122 INFO L273 TraceCheckUtils]: 14: Hoare triple {30378#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {30378#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 18:01:02,123 INFO L273 TraceCheckUtils]: 13: Hoare triple {30385#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {30378#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 18:01:02,123 INFO L273 TraceCheckUtils]: 12: Hoare triple {30385#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {30385#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 18:01:02,125 INFO L273 TraceCheckUtils]: 11: Hoare triple {30392#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30385#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 18:01:02,125 INFO L273 TraceCheckUtils]: 10: Hoare triple {30392#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {30392#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,126 INFO L273 TraceCheckUtils]: 9: Hoare triple {30399#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {30392#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,127 INFO L273 TraceCheckUtils]: 8: Hoare triple {30399#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {30399#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,128 INFO L273 TraceCheckUtils]: 7: Hoare triple {30406#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {30399#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2018-12-18 18:01:02,128 INFO L273 TraceCheckUtils]: 6: Hoare triple {30406#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {30406#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2018-12-18 18:01:02,130 INFO L273 TraceCheckUtils]: 5: Hoare triple {30413#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {30406#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2018-12-18 18:01:02,130 INFO L273 TraceCheckUtils]: 4: Hoare triple {30413#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {30413#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2018-12-18 18:01:02,131 INFO L273 TraceCheckUtils]: 3: Hoare triple {30420#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {30413#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2018-12-18 18:01:02,132 INFO L273 TraceCheckUtils]: 2: Hoare triple {30420#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume i <= n * 4; {30420#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2018-12-18 18:01:02,133 INFO L273 TraceCheckUtils]: 1: Hoare triple {30427#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume a[i] != 23;i := i + 4; {30420#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2018-12-18 18:01:02,134 INFO L273 TraceCheckUtils]: 0: Hoare triple {29701#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {30427#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2018-12-18 18:01:02,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 2256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:01:02,188 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 18:01:02,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 149 [2018-12-18 18:01:02,188 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 18:01:02,189 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 97 [2018-12-18 18:01:02,189 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 18:01:02,189 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 101 states. [2018-12-18 18:01:02,426 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 193 edges. 193 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 18:01:02,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 101 states [2018-12-18 18:01:02,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2018-12-18 18:01:02,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2758, Invalid=19892, Unknown=0, NotChecked=0, Total=22650 [2018-12-18 18:01:02,428 INFO L87 Difference]: Start difference. First operand 98 states and 98 transitions. Second operand 101 states. [2018-12-18 18:01:14,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:01:14,353 INFO L93 Difference]: Finished difference Result 102 states and 102 transitions. [2018-12-18 18:01:14,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-12-18 18:01:14,353 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 97 [2018-12-18 18:01:14,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 18:01:14,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-12-18 18:01:14,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 102 transitions. [2018-12-18 18:01:14,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-12-18 18:01:14,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 102 transitions. [2018-12-18 18:01:14,355 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 52 states and 102 transitions. [2018-12-18 18:01:14,463 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 102 edges. 102 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 18:01:14,465 INFO L225 Difference]: With dead ends: 102 [2018-12-18 18:01:14,465 INFO L226 Difference]: Without dead ends: 101 [2018-12-18 18:01:14,466 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5096 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=2758, Invalid=19892, Unknown=0, NotChecked=0, Total=22650 [2018-12-18 18:01:14,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-12-18 18:01:14,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2018-12-18 18:01:14,573 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 18:01:14,573 INFO L82 GeneralOperation]: Start isEquivalent. First operand 101 states. Second operand 100 states. [2018-12-18 18:01:14,573 INFO L74 IsIncluded]: Start isIncluded. First operand 101 states. Second operand 100 states. [2018-12-18 18:01:14,573 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 100 states. [2018-12-18 18:01:14,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:01:14,575 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2018-12-18 18:01:14,575 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2018-12-18 18:01:14,576 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 18:01:14,576 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 18:01:14,576 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 101 states. [2018-12-18 18:01:14,576 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 101 states. [2018-12-18 18:01:14,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:01:14,577 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2018-12-18 18:01:14,577 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2018-12-18 18:01:14,578 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 18:01:14,578 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 18:01:14,578 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 18:01:14,578 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 18:01:14,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-12-18 18:01:14,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 100 transitions. [2018-12-18 18:01:14,579 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 100 transitions. Word has length 97 [2018-12-18 18:01:14,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 18:01:14,580 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 100 transitions. [2018-12-18 18:01:14,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has 101 states. [2018-12-18 18:01:14,580 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 100 transitions. [2018-12-18 18:01:14,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-12-18 18:01:14,580 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 18:01:14,580 INFO L402 BasicCegarLoop]: trace histogram [49, 48, 1, 1] [2018-12-18 18:01:14,581 INFO L423 AbstractCegarLoop]: === Iteration 49 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 18:01:14,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 18:01:14,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1442099904, now seen corresponding path program 48 times [2018-12-18 18:01:14,581 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 18:01:14,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 18:01:14,582 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 18:01:14,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 18:01:14,582 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 18:01:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 18:01:15,020 WARN L181 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-12-18 18:01:17,760 INFO L273 TraceCheckUtils]: 0: Hoare triple {30933#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {30935#(and (or (<= main_n 48) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))) (or (<= 0 main_i) (< 48 main_n)))} is VALID [2018-12-18 18:01:17,761 INFO L273 TraceCheckUtils]: 1: Hoare triple {30935#(and (or (<= main_n 48) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))) (or (<= 0 main_i) (< 48 main_n)))} assume a[i] != 23;i := i + 4; {30936#(and (or (< 48 main_n) (<= 4 main_i)) (or (<= main_n 48) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,762 INFO L273 TraceCheckUtils]: 2: Hoare triple {30936#(and (or (< 48 main_n) (<= 4 main_i)) (or (<= main_n 48) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30936#(and (or (< 48 main_n) (<= 4 main_i)) (or (<= main_n 48) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,763 INFO L273 TraceCheckUtils]: 3: Hoare triple {30936#(and (or (< 48 main_n) (<= 4 main_i)) (or (<= main_n 48) (<= main_i 4)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30937#(and (or (<= main_n 48) (<= main_i 8)) (or (<= 8 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,763 INFO L273 TraceCheckUtils]: 4: Hoare triple {30937#(and (or (<= main_n 48) (<= main_i 8)) (or (<= 8 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30937#(and (or (<= main_n 48) (<= main_i 8)) (or (<= 8 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,765 INFO L273 TraceCheckUtils]: 5: Hoare triple {30937#(and (or (<= main_n 48) (<= main_i 8)) (or (<= 8 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30938#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_n 48) (<= main_i 12)) (or (< 48 main_n) (<= 12 main_i)))} is VALID [2018-12-18 18:01:17,765 INFO L273 TraceCheckUtils]: 6: Hoare triple {30938#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_n 48) (<= main_i 12)) (or (< 48 main_n) (<= 12 main_i)))} assume i <= n * 4; {30938#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_n 48) (<= main_i 12)) (or (< 48 main_n) (<= 12 main_i)))} is VALID [2018-12-18 18:01:17,766 INFO L273 TraceCheckUtils]: 7: Hoare triple {30938#(and (= 23 (select main_a (* 4 main_n))) (or (<= main_n 48) (<= main_i 12)) (or (< 48 main_n) (<= 12 main_i)))} assume a[i] != 23;i := i + 4; {30939#(and (or (<= main_n 48) (<= main_i 16)) (or (<= 16 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,767 INFO L273 TraceCheckUtils]: 8: Hoare triple {30939#(and (or (<= main_n 48) (<= main_i 16)) (or (<= 16 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30939#(and (or (<= main_n 48) (<= main_i 16)) (or (<= 16 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,768 INFO L273 TraceCheckUtils]: 9: Hoare triple {30939#(and (or (<= main_n 48) (<= main_i 16)) (or (<= 16 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30940#(and (or (< 48 main_n) (<= 20 main_i)) (or (<= main_n 48) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,769 INFO L273 TraceCheckUtils]: 10: Hoare triple {30940#(and (or (< 48 main_n) (<= 20 main_i)) (or (<= main_n 48) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30940#(and (or (< 48 main_n) (<= 20 main_i)) (or (<= main_n 48) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,770 INFO L273 TraceCheckUtils]: 11: Hoare triple {30940#(and (or (< 48 main_n) (<= 20 main_i)) (or (<= main_n 48) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30941#(and (or (<= 24 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,771 INFO L273 TraceCheckUtils]: 12: Hoare triple {30941#(and (or (<= 24 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30941#(and (or (<= 24 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,772 INFO L273 TraceCheckUtils]: 13: Hoare triple {30941#(and (or (<= 24 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30942#(and (or (<= main_n 48) (<= main_i 28)) (or (<= 28 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,773 INFO L273 TraceCheckUtils]: 14: Hoare triple {30942#(and (or (<= main_n 48) (<= main_i 28)) (or (<= 28 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30942#(and (or (<= main_n 48) (<= main_i 28)) (or (<= 28 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,774 INFO L273 TraceCheckUtils]: 15: Hoare triple {30942#(and (or (<= main_n 48) (<= main_i 28)) (or (<= 28 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30943#(and (or (<= main_i 32) (<= main_n 48)) (or (<= 32 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,775 INFO L273 TraceCheckUtils]: 16: Hoare triple {30943#(and (or (<= main_i 32) (<= main_n 48)) (or (<= 32 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30943#(and (or (<= main_i 32) (<= main_n 48)) (or (<= 32 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,776 INFO L273 TraceCheckUtils]: 17: Hoare triple {30943#(and (or (<= main_i 32) (<= main_n 48)) (or (<= 32 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30944#(and (or (< 48 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,776 INFO L273 TraceCheckUtils]: 18: Hoare triple {30944#(and (or (< 48 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30944#(and (or (< 48 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,778 INFO L273 TraceCheckUtils]: 19: Hoare triple {30944#(and (or (< 48 main_n) (<= 36 main_i)) (or (<= main_i 36) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30945#(and (or (<= 40 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,778 INFO L273 TraceCheckUtils]: 20: Hoare triple {30945#(and (or (<= 40 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30945#(and (or (<= 40 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,779 INFO L273 TraceCheckUtils]: 21: Hoare triple {30945#(and (or (<= 40 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30946#(and (or (<= main_n 48) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 48 main_n)))} is VALID [2018-12-18 18:01:17,780 INFO L273 TraceCheckUtils]: 22: Hoare triple {30946#(and (or (<= main_n 48) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 48 main_n)))} assume i <= n * 4; {30946#(and (or (<= main_n 48) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 48 main_n)))} is VALID [2018-12-18 18:01:17,781 INFO L273 TraceCheckUtils]: 23: Hoare triple {30946#(and (or (<= main_n 48) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))) (or (<= 44 main_i) (< 48 main_n)))} assume a[i] != 23;i := i + 4; {30947#(and (or (<= main_n 48) (<= main_i 48)) (or (<= 48 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,782 INFO L273 TraceCheckUtils]: 24: Hoare triple {30947#(and (or (<= main_n 48) (<= main_i 48)) (or (<= 48 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30947#(and (or (<= main_n 48) (<= main_i 48)) (or (<= 48 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,783 INFO L273 TraceCheckUtils]: 25: Hoare triple {30947#(and (or (<= main_n 48) (<= main_i 48)) (or (<= 48 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30948#(and (or (<= main_n 48) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 52 main_i)))} is VALID [2018-12-18 18:01:17,784 INFO L273 TraceCheckUtils]: 26: Hoare triple {30948#(and (or (<= main_n 48) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 52 main_i)))} assume i <= n * 4; {30948#(and (or (<= main_n 48) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 52 main_i)))} is VALID [2018-12-18 18:01:17,785 INFO L273 TraceCheckUtils]: 27: Hoare triple {30948#(and (or (<= main_n 48) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 52 main_i)))} assume a[i] != 23;i := i + 4; {30949#(and (or (<= main_n 48) (<= main_i 56)) (or (<= 56 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,786 INFO L273 TraceCheckUtils]: 28: Hoare triple {30949#(and (or (<= main_n 48) (<= main_i 56)) (or (<= 56 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30949#(and (or (<= main_n 48) (<= main_i 56)) (or (<= 56 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,787 INFO L273 TraceCheckUtils]: 29: Hoare triple {30949#(and (or (<= main_n 48) (<= main_i 56)) (or (<= 56 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30950#(and (or (<= 60 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,788 INFO L273 TraceCheckUtils]: 30: Hoare triple {30950#(and (or (<= 60 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30950#(and (or (<= 60 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,789 INFO L273 TraceCheckUtils]: 31: Hoare triple {30950#(and (or (<= 60 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 60)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30951#(and (or (<= main_n 48) (<= main_i 64)) (or (<= 64 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,789 INFO L273 TraceCheckUtils]: 32: Hoare triple {30951#(and (or (<= main_n 48) (<= main_i 64)) (or (<= 64 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30951#(and (or (<= main_n 48) (<= main_i 64)) (or (<= 64 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,790 INFO L273 TraceCheckUtils]: 33: Hoare triple {30951#(and (or (<= main_n 48) (<= main_i 64)) (or (<= 64 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30952#(and (or (<= main_n 48) (<= main_i 68)) (or (< 48 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,791 INFO L273 TraceCheckUtils]: 34: Hoare triple {30952#(and (or (<= main_n 48) (<= main_i 68)) (or (< 48 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30952#(and (or (<= main_n 48) (<= main_i 68)) (or (< 48 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,792 INFO L273 TraceCheckUtils]: 35: Hoare triple {30952#(and (or (<= main_n 48) (<= main_i 68)) (or (< 48 main_n) (<= 68 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30953#(and (or (<= main_n 48) (<= main_i 72)) (or (<= 72 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,793 INFO L273 TraceCheckUtils]: 36: Hoare triple {30953#(and (or (<= main_n 48) (<= main_i 72)) (or (<= 72 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30953#(and (or (<= main_n 48) (<= main_i 72)) (or (<= 72 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,794 INFO L273 TraceCheckUtils]: 37: Hoare triple {30953#(and (or (<= main_n 48) (<= main_i 72)) (or (<= 72 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30954#(and (or (<= main_i 76) (<= main_n 48)) (or (<= 76 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,795 INFO L273 TraceCheckUtils]: 38: Hoare triple {30954#(and (or (<= main_i 76) (<= main_n 48)) (or (<= 76 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30954#(and (or (<= main_i 76) (<= main_n 48)) (or (<= 76 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,796 INFO L273 TraceCheckUtils]: 39: Hoare triple {30954#(and (or (<= main_i 76) (<= main_n 48)) (or (<= 76 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30955#(and (or (<= main_n 48) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 48 main_n)))} is VALID [2018-12-18 18:01:17,796 INFO L273 TraceCheckUtils]: 40: Hoare triple {30955#(and (or (<= main_n 48) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 48 main_n)))} assume i <= n * 4; {30955#(and (or (<= main_n 48) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 48 main_n)))} is VALID [2018-12-18 18:01:17,797 INFO L273 TraceCheckUtils]: 41: Hoare triple {30955#(and (or (<= main_n 48) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))) (or (<= 80 main_i) (< 48 main_n)))} assume a[i] != 23;i := i + 4; {30956#(and (or (< 48 main_n) (<= 84 main_i)) (or (<= main_n 48) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,798 INFO L273 TraceCheckUtils]: 42: Hoare triple {30956#(and (or (< 48 main_n) (<= 84 main_i)) (or (<= main_n 48) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30956#(and (or (< 48 main_n) (<= 84 main_i)) (or (<= main_n 48) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,799 INFO L273 TraceCheckUtils]: 43: Hoare triple {30956#(and (or (< 48 main_n) (<= 84 main_i)) (or (<= main_n 48) (<= main_i 84)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30957#(and (or (< 48 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 48)))} is VALID [2018-12-18 18:01:17,800 INFO L273 TraceCheckUtils]: 44: Hoare triple {30957#(and (or (< 48 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 48)))} assume i <= n * 4; {30957#(and (or (< 48 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 48)))} is VALID [2018-12-18 18:01:17,801 INFO L273 TraceCheckUtils]: 45: Hoare triple {30957#(and (or (< 48 main_n) (<= 88 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 88) (<= main_n 48)))} assume a[i] != 23;i := i + 4; {30958#(and (or (< 48 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,802 INFO L273 TraceCheckUtils]: 46: Hoare triple {30958#(and (or (< 48 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30958#(and (or (< 48 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,803 INFO L273 TraceCheckUtils]: 47: Hoare triple {30958#(and (or (< 48 main_n) (<= 92 main_i)) (or (<= main_i 92) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30959#(and (or (<= main_i 96) (<= main_n 48)) (or (<= 96 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,804 INFO L273 TraceCheckUtils]: 48: Hoare triple {30959#(and (or (<= main_i 96) (<= main_n 48)) (or (<= 96 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30959#(and (or (<= main_i 96) (<= main_n 48)) (or (<= 96 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,805 INFO L273 TraceCheckUtils]: 49: Hoare triple {30959#(and (or (<= main_i 96) (<= main_n 48)) (or (<= 96 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30960#(and (or (<= main_n 48) (<= main_i 100)) (or (<= 100 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,805 INFO L273 TraceCheckUtils]: 50: Hoare triple {30960#(and (or (<= main_n 48) (<= main_i 100)) (or (<= 100 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30960#(and (or (<= main_n 48) (<= main_i 100)) (or (<= 100 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,806 INFO L273 TraceCheckUtils]: 51: Hoare triple {30960#(and (or (<= main_n 48) (<= main_i 100)) (or (<= 100 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30961#(and (or (<= 104 main_i) (< 48 main_n)) (or (<= main_i 104) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,807 INFO L273 TraceCheckUtils]: 52: Hoare triple {30961#(and (or (<= 104 main_i) (< 48 main_n)) (or (<= main_i 104) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30961#(and (or (<= 104 main_i) (< 48 main_n)) (or (<= main_i 104) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,808 INFO L273 TraceCheckUtils]: 53: Hoare triple {30961#(and (or (<= 104 main_i) (< 48 main_n)) (or (<= main_i 104) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30962#(and (or (<= 108 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,809 INFO L273 TraceCheckUtils]: 54: Hoare triple {30962#(and (or (<= 108 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30962#(and (or (<= 108 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,810 INFO L273 TraceCheckUtils]: 55: Hoare triple {30962#(and (or (<= 108 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 108)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30963#(and (or (<= main_n 48) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 112 main_i)))} is VALID [2018-12-18 18:01:17,811 INFO L273 TraceCheckUtils]: 56: Hoare triple {30963#(and (or (<= main_n 48) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 112 main_i)))} assume i <= n * 4; {30963#(and (or (<= main_n 48) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 112 main_i)))} is VALID [2018-12-18 18:01:17,812 INFO L273 TraceCheckUtils]: 57: Hoare triple {30963#(and (or (<= main_n 48) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 112 main_i)))} assume a[i] != 23;i := i + 4; {30964#(and (or (<= 116 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,812 INFO L273 TraceCheckUtils]: 58: Hoare triple {30964#(and (or (<= 116 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30964#(and (or (<= 116 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,814 INFO L273 TraceCheckUtils]: 59: Hoare triple {30964#(and (or (<= 116 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30965#(and (or (<= 120 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,814 INFO L273 TraceCheckUtils]: 60: Hoare triple {30965#(and (or (<= 120 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30965#(and (or (<= 120 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,815 INFO L273 TraceCheckUtils]: 61: Hoare triple {30965#(and (or (<= 120 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30966#(and (or (<= main_n 48) (<= main_i 124)) (or (<= 124 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,816 INFO L273 TraceCheckUtils]: 62: Hoare triple {30966#(and (or (<= main_n 48) (<= main_i 124)) (or (<= 124 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30966#(and (or (<= main_n 48) (<= main_i 124)) (or (<= 124 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,817 INFO L273 TraceCheckUtils]: 63: Hoare triple {30966#(and (or (<= main_n 48) (<= main_i 124)) (or (<= 124 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30967#(and (or (< 48 main_n) (<= 128 main_i)) (or (<= main_n 48) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,818 INFO L273 TraceCheckUtils]: 64: Hoare triple {30967#(and (or (< 48 main_n) (<= 128 main_i)) (or (<= main_n 48) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30967#(and (or (< 48 main_n) (<= 128 main_i)) (or (<= main_n 48) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,819 INFO L273 TraceCheckUtils]: 65: Hoare triple {30967#(and (or (< 48 main_n) (<= 128 main_i)) (or (<= main_n 48) (<= main_i 128)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30968#(and (or (<= main_n 48) (<= main_i 132)) (or (<= 132 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,820 INFO L273 TraceCheckUtils]: 66: Hoare triple {30968#(and (or (<= main_n 48) (<= main_i 132)) (or (<= 132 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30968#(and (or (<= main_n 48) (<= main_i 132)) (or (<= 132 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,821 INFO L273 TraceCheckUtils]: 67: Hoare triple {30968#(and (or (<= main_n 48) (<= main_i 132)) (or (<= 132 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30969#(and (or (<= main_i 136) (<= main_n 48)) (or (<= 136 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,821 INFO L273 TraceCheckUtils]: 68: Hoare triple {30969#(and (or (<= main_i 136) (<= main_n 48)) (or (<= 136 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30969#(and (or (<= main_i 136) (<= main_n 48)) (or (<= 136 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,822 INFO L273 TraceCheckUtils]: 69: Hoare triple {30969#(and (or (<= main_i 136) (<= main_n 48)) (or (<= 136 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30970#(and (or (< 48 main_n) (<= 140 main_i)) (or (<= main_n 48) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,823 INFO L273 TraceCheckUtils]: 70: Hoare triple {30970#(and (or (< 48 main_n) (<= 140 main_i)) (or (<= main_n 48) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30970#(and (or (< 48 main_n) (<= 140 main_i)) (or (<= main_n 48) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,824 INFO L273 TraceCheckUtils]: 71: Hoare triple {30970#(and (or (< 48 main_n) (<= 140 main_i)) (or (<= main_n 48) (<= main_i 140)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30971#(and (or (<= 144 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,825 INFO L273 TraceCheckUtils]: 72: Hoare triple {30971#(and (or (<= 144 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30971#(and (or (<= 144 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,826 INFO L273 TraceCheckUtils]: 73: Hoare triple {30971#(and (or (<= 144 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 144)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30972#(and (or (<= main_n 48) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 148 main_i)))} is VALID [2018-12-18 18:01:17,827 INFO L273 TraceCheckUtils]: 74: Hoare triple {30972#(and (or (<= main_n 48) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 148 main_i)))} assume i <= n * 4; {30972#(and (or (<= main_n 48) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 148 main_i)))} is VALID [2018-12-18 18:01:17,828 INFO L273 TraceCheckUtils]: 75: Hoare triple {30972#(and (or (<= main_n 48) (<= main_i 148)) (= 23 (select main_a (* 4 main_n))) (or (< 48 main_n) (<= 148 main_i)))} assume a[i] != 23;i := i + 4; {30973#(and (or (<= main_n 48) (<= main_i 152)) (or (<= 152 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,829 INFO L273 TraceCheckUtils]: 76: Hoare triple {30973#(and (or (<= main_n 48) (<= main_i 152)) (or (<= 152 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30973#(and (or (<= main_n 48) (<= main_i 152)) (or (<= 152 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,830 INFO L273 TraceCheckUtils]: 77: Hoare triple {30973#(and (or (<= main_n 48) (<= main_i 152)) (or (<= 152 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30974#(and (or (<= main_n 48) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 48 main_n)))} is VALID [2018-12-18 18:01:17,831 INFO L273 TraceCheckUtils]: 78: Hoare triple {30974#(and (or (<= main_n 48) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 48 main_n)))} assume i <= n * 4; {30974#(and (or (<= main_n 48) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 48 main_n)))} is VALID [2018-12-18 18:01:17,832 INFO L273 TraceCheckUtils]: 79: Hoare triple {30974#(and (or (<= main_n 48) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 48 main_n)))} assume a[i] != 23;i := i + 4; {30975#(and (or (<= main_n 48) (<= main_i 160)) (or (<= 160 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,833 INFO L273 TraceCheckUtils]: 80: Hoare triple {30975#(and (or (<= main_n 48) (<= main_i 160)) (or (<= 160 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30975#(and (or (<= main_n 48) (<= main_i 160)) (or (<= 160 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,834 INFO L273 TraceCheckUtils]: 81: Hoare triple {30975#(and (or (<= main_n 48) (<= main_i 160)) (or (<= 160 main_i) (< 48 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30976#(and (or (<= main_n 48) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))) (or (<= 164 main_i) (< 48 main_n)))} is VALID [2018-12-18 18:01:17,834 INFO L273 TraceCheckUtils]: 82: Hoare triple {30976#(and (or (<= main_n 48) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))) (or (<= 164 main_i) (< 48 main_n)))} assume i <= n * 4; {30976#(and (or (<= main_n 48) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))) (or (<= 164 main_i) (< 48 main_n)))} is VALID [2018-12-18 18:01:17,836 INFO L273 TraceCheckUtils]: 83: Hoare triple {30976#(and (or (<= main_n 48) (<= main_i 164)) (= 23 (select main_a (* 4 main_n))) (or (<= 164 main_i) (< 48 main_n)))} assume a[i] != 23;i := i + 4; {30977#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 168)))} is VALID [2018-12-18 18:01:17,836 INFO L273 TraceCheckUtils]: 84: Hoare triple {30977#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 168)))} assume i <= n * 4; {30977#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 168)))} is VALID [2018-12-18 18:01:17,837 INFO L273 TraceCheckUtils]: 85: Hoare triple {30977#(and (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 168)))} assume a[i] != 23;i := i + 4; {30978#(and (or (<= 172 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 172)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,838 INFO L273 TraceCheckUtils]: 86: Hoare triple {30978#(and (or (<= 172 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 172)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30978#(and (or (<= 172 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 172)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,839 INFO L273 TraceCheckUtils]: 87: Hoare triple {30978#(and (or (<= 172 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 172)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30979#(and (or (<= 176 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,840 INFO L273 TraceCheckUtils]: 88: Hoare triple {30979#(and (or (<= 176 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30979#(and (or (<= 176 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,841 INFO L273 TraceCheckUtils]: 89: Hoare triple {30979#(and (or (<= 176 main_i) (< 48 main_n)) (or (<= main_n 48) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30980#(and (or (<= main_n 48) (<= main_i 180)) (or (< 48 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,842 INFO L273 TraceCheckUtils]: 90: Hoare triple {30980#(and (or (<= main_n 48) (<= main_i 180)) (or (< 48 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30980#(and (or (<= main_n 48) (<= main_i 180)) (or (< 48 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,843 INFO L273 TraceCheckUtils]: 91: Hoare triple {30980#(and (or (<= main_n 48) (<= main_i 180)) (or (< 48 main_n) (<= 180 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30981#(and (or (<= main_n 48) (<= main_i 184)) (or (< 48 main_n) (<= 184 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,844 INFO L273 TraceCheckUtils]: 92: Hoare triple {30981#(and (or (<= main_n 48) (<= main_i 184)) (or (< 48 main_n) (<= 184 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30981#(and (or (<= main_n 48) (<= main_i 184)) (or (< 48 main_n) (<= 184 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,845 INFO L273 TraceCheckUtils]: 93: Hoare triple {30981#(and (or (<= main_n 48) (<= main_i 184)) (or (< 48 main_n) (<= 184 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30982#(and (or (< 48 main_n) (<= 188 main_i)) (or (<= main_i 188) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,846 INFO L273 TraceCheckUtils]: 94: Hoare triple {30982#(and (or (< 48 main_n) (<= 188 main_i)) (or (<= main_i 188) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {30982#(and (or (< 48 main_n) (<= 188 main_i)) (or (<= main_i 188) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:17,847 INFO L273 TraceCheckUtils]: 95: Hoare triple {30982#(and (or (< 48 main_n) (<= 188 main_i)) (or (<= main_i 188) (<= main_n 48)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30983#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 48) (<= main_i 192)) (or (<= (* 4 main_n) main_i) (< 48 main_n)))))} is VALID [2018-12-18 18:01:17,848 INFO L273 TraceCheckUtils]: 96: Hoare triple {30983#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 48) (<= main_i 192)) (or (<= (* 4 main_n) main_i) (< 48 main_n)))))} assume i <= n * 4; {30984#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 192) (< 48 main_n))))} is VALID [2018-12-18 18:01:17,849 INFO L273 TraceCheckUtils]: 97: Hoare triple {30984#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (<= main_i 192) (< 48 main_n))))} assume a[i] != 23;i := i + 4; {30985#(and (< 48 main_n) (<= main_i 196))} is VALID [2018-12-18 18:01:17,850 INFO L273 TraceCheckUtils]: 98: Hoare triple {30985#(and (< 48 main_n) (<= main_i 196))} assume !(i <= n * 4); {30934#false} is VALID [2018-12-18 18:01:17,891 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:01:17,891 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 18:01:17,891 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 18:01:17,891 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 18:01:17,891 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 18:01:17,891 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 18:01:17,891 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 18:01:17,899 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-18 18:01:17,899 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-18 18:01:17,926 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-18 18:01:17,927 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 18:01:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 18:01:17,941 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 18:01:17,949 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 18:01:17,951 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 18:01:17,959 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 18:01:17,959 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 18:01:17,961 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 18:01:17,961 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_52]. (and (= main_a (store v_main_a_52 (* 4 main_n) 23)) (= main_i 0)) [2018-12-18 18:01:17,961 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 18:01:21,779 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 18:01:21,781 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 18:01:21,796 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 18:01:21,797 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 18:01:21,798 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 18:01:21,799 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 192 .cse0) (= 23 (select main_a .cse0)) (not (= 23 (select main_a 192))) (<= main_i 196))) [2018-12-18 18:01:21,799 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 192 .cse0)) (<= 192 .cse0) (<= main_i 196))) [2018-12-18 18:01:21,858 INFO L273 TraceCheckUtils]: 0: Hoare triple {30933#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {30989#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,858 INFO L273 TraceCheckUtils]: 1: Hoare triple {30989#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30993#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 18:01:21,859 INFO L273 TraceCheckUtils]: 2: Hoare triple {30993#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {30993#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 18:01:21,859 INFO L273 TraceCheckUtils]: 3: Hoare triple {30993#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {31000#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,859 INFO L273 TraceCheckUtils]: 4: Hoare triple {31000#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31000#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,860 INFO L273 TraceCheckUtils]: 5: Hoare triple {31000#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31007#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 18:01:21,860 INFO L273 TraceCheckUtils]: 6: Hoare triple {31007#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {31007#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 18:01:21,861 INFO L273 TraceCheckUtils]: 7: Hoare triple {31007#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {31014#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,861 INFO L273 TraceCheckUtils]: 8: Hoare triple {31014#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31014#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,862 INFO L273 TraceCheckUtils]: 9: Hoare triple {31014#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31021#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,863 INFO L273 TraceCheckUtils]: 10: Hoare triple {31021#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31021#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,863 INFO L273 TraceCheckUtils]: 11: Hoare triple {31021#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31028#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,864 INFO L273 TraceCheckUtils]: 12: Hoare triple {31028#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31028#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,865 INFO L273 TraceCheckUtils]: 13: Hoare triple {31028#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31035#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,865 INFO L273 TraceCheckUtils]: 14: Hoare triple {31035#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31035#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,866 INFO L273 TraceCheckUtils]: 15: Hoare triple {31035#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31042#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,867 INFO L273 TraceCheckUtils]: 16: Hoare triple {31042#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31042#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,867 INFO L273 TraceCheckUtils]: 17: Hoare triple {31042#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31049#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,868 INFO L273 TraceCheckUtils]: 18: Hoare triple {31049#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31049#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,869 INFO L273 TraceCheckUtils]: 19: Hoare triple {31049#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31056#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,869 INFO L273 TraceCheckUtils]: 20: Hoare triple {31056#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31056#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,870 INFO L273 TraceCheckUtils]: 21: Hoare triple {31056#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31063#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,871 INFO L273 TraceCheckUtils]: 22: Hoare triple {31063#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31063#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,872 INFO L273 TraceCheckUtils]: 23: Hoare triple {31063#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31070#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,872 INFO L273 TraceCheckUtils]: 24: Hoare triple {31070#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31070#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,873 INFO L273 TraceCheckUtils]: 25: Hoare triple {31070#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31077#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,874 INFO L273 TraceCheckUtils]: 26: Hoare triple {31077#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31077#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,875 INFO L273 TraceCheckUtils]: 27: Hoare triple {31077#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31084#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,875 INFO L273 TraceCheckUtils]: 28: Hoare triple {31084#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31084#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,876 INFO L273 TraceCheckUtils]: 29: Hoare triple {31084#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31091#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,877 INFO L273 TraceCheckUtils]: 30: Hoare triple {31091#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31091#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,878 INFO L273 TraceCheckUtils]: 31: Hoare triple {31091#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31098#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,878 INFO L273 TraceCheckUtils]: 32: Hoare triple {31098#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31098#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,879 INFO L273 TraceCheckUtils]: 33: Hoare triple {31098#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31105#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,880 INFO L273 TraceCheckUtils]: 34: Hoare triple {31105#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31105#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,880 INFO L273 TraceCheckUtils]: 35: Hoare triple {31105#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31112#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,881 INFO L273 TraceCheckUtils]: 36: Hoare triple {31112#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31112#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,882 INFO L273 TraceCheckUtils]: 37: Hoare triple {31112#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31119#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,883 INFO L273 TraceCheckUtils]: 38: Hoare triple {31119#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31119#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,883 INFO L273 TraceCheckUtils]: 39: Hoare triple {31119#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31126#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 18:01:21,884 INFO L273 TraceCheckUtils]: 40: Hoare triple {31126#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {31126#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 18:01:21,885 INFO L273 TraceCheckUtils]: 41: Hoare triple {31126#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {31133#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,885 INFO L273 TraceCheckUtils]: 42: Hoare triple {31133#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31133#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,886 INFO L273 TraceCheckUtils]: 43: Hoare triple {31133#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31140#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,887 INFO L273 TraceCheckUtils]: 44: Hoare triple {31140#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31140#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,888 INFO L273 TraceCheckUtils]: 45: Hoare triple {31140#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31147#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,888 INFO L273 TraceCheckUtils]: 46: Hoare triple {31147#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31147#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,889 INFO L273 TraceCheckUtils]: 47: Hoare triple {31147#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31154#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,890 INFO L273 TraceCheckUtils]: 48: Hoare triple {31154#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31154#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,891 INFO L273 TraceCheckUtils]: 49: Hoare triple {31154#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31161#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,891 INFO L273 TraceCheckUtils]: 50: Hoare triple {31161#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31161#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,892 INFO L273 TraceCheckUtils]: 51: Hoare triple {31161#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31168#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,893 INFO L273 TraceCheckUtils]: 52: Hoare triple {31168#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31168#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,893 INFO L273 TraceCheckUtils]: 53: Hoare triple {31168#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31175#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,894 INFO L273 TraceCheckUtils]: 54: Hoare triple {31175#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31175#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,895 INFO L273 TraceCheckUtils]: 55: Hoare triple {31175#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31182#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,896 INFO L273 TraceCheckUtils]: 56: Hoare triple {31182#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31182#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,896 INFO L273 TraceCheckUtils]: 57: Hoare triple {31182#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31189#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,897 INFO L273 TraceCheckUtils]: 58: Hoare triple {31189#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31189#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,898 INFO L273 TraceCheckUtils]: 59: Hoare triple {31189#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31196#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,898 INFO L273 TraceCheckUtils]: 60: Hoare triple {31196#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31196#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,899 INFO L273 TraceCheckUtils]: 61: Hoare triple {31196#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31203#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,900 INFO L273 TraceCheckUtils]: 62: Hoare triple {31203#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31203#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,900 INFO L273 TraceCheckUtils]: 63: Hoare triple {31203#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31210#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,901 INFO L273 TraceCheckUtils]: 64: Hoare triple {31210#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31210#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,902 INFO L273 TraceCheckUtils]: 65: Hoare triple {31210#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31217#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,903 INFO L273 TraceCheckUtils]: 66: Hoare triple {31217#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31217#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,903 INFO L273 TraceCheckUtils]: 67: Hoare triple {31217#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31224#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,904 INFO L273 TraceCheckUtils]: 68: Hoare triple {31224#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31224#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,905 INFO L273 TraceCheckUtils]: 69: Hoare triple {31224#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31231#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 18:01:21,906 INFO L273 TraceCheckUtils]: 70: Hoare triple {31231#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {31231#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 18:01:21,907 INFO L273 TraceCheckUtils]: 71: Hoare triple {31231#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {31238#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,907 INFO L273 TraceCheckUtils]: 72: Hoare triple {31238#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31238#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,908 INFO L273 TraceCheckUtils]: 73: Hoare triple {31238#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31245#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,909 INFO L273 TraceCheckUtils]: 74: Hoare triple {31245#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31245#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,909 INFO L273 TraceCheckUtils]: 75: Hoare triple {31245#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31252#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,910 INFO L273 TraceCheckUtils]: 76: Hoare triple {31252#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31252#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,911 INFO L273 TraceCheckUtils]: 77: Hoare triple {31252#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31259#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,912 INFO L273 TraceCheckUtils]: 78: Hoare triple {31259#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31259#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,912 INFO L273 TraceCheckUtils]: 79: Hoare triple {31259#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31266#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,913 INFO L273 TraceCheckUtils]: 80: Hoare triple {31266#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31266#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,914 INFO L273 TraceCheckUtils]: 81: Hoare triple {31266#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31273#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 18:01:21,914 INFO L273 TraceCheckUtils]: 82: Hoare triple {31273#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {31273#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 18:01:21,915 INFO L273 TraceCheckUtils]: 83: Hoare triple {31273#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {31280#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,916 INFO L273 TraceCheckUtils]: 84: Hoare triple {31280#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31280#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,917 INFO L273 TraceCheckUtils]: 85: Hoare triple {31280#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31287#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,917 INFO L273 TraceCheckUtils]: 86: Hoare triple {31287#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31287#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,918 INFO L273 TraceCheckUtils]: 87: Hoare triple {31287#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31294#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,919 INFO L273 TraceCheckUtils]: 88: Hoare triple {31294#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31294#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,919 INFO L273 TraceCheckUtils]: 89: Hoare triple {31294#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31301#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,920 INFO L273 TraceCheckUtils]: 90: Hoare triple {31301#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31301#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,921 INFO L273 TraceCheckUtils]: 91: Hoare triple {31301#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31308#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,921 INFO L273 TraceCheckUtils]: 92: Hoare triple {31308#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31308#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,922 INFO L273 TraceCheckUtils]: 93: Hoare triple {31308#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31315#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,923 INFO L273 TraceCheckUtils]: 94: Hoare triple {31315#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31315#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,924 INFO L273 TraceCheckUtils]: 95: Hoare triple {31315#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {31322#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,924 INFO L273 TraceCheckUtils]: 96: Hoare triple {31322#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {31326#(and (= main_i 192) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:21,925 INFO L273 TraceCheckUtils]: 97: Hoare triple {31326#(and (= main_i 192) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {30985#(and (< 48 main_n) (<= main_i 196))} is VALID [2018-12-18 18:01:21,926 INFO L273 TraceCheckUtils]: 98: Hoare triple {30985#(and (< 48 main_n) (<= main_i 196))} assume !(i <= n * 4); {30934#false} is VALID [2018-12-18 18:01:21,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:01:21,949 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 18:01:28,678 INFO L273 TraceCheckUtils]: 98: Hoare triple {31333#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {30934#false} is VALID [2018-12-18 18:01:28,679 INFO L273 TraceCheckUtils]: 97: Hoare triple {31337#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {31333#(<= main_i (* 4 main_n))} is VALID [2018-12-18 18:01:28,680 INFO L273 TraceCheckUtils]: 96: Hoare triple {31341#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {31337#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 18:01:28,680 INFO L273 TraceCheckUtils]: 95: Hoare triple {31345#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {31341#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 18:01:28,681 INFO L273 TraceCheckUtils]: 94: Hoare triple {31345#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {31345#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 18:01:28,681 INFO L273 TraceCheckUtils]: 93: Hoare triple {31352#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {31345#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 18:01:28,682 INFO L273 TraceCheckUtils]: 92: Hoare triple {31352#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {31352#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 18:01:28,683 INFO L273 TraceCheckUtils]: 91: Hoare triple {31359#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {31352#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 18:01:28,683 INFO L273 TraceCheckUtils]: 90: Hoare triple {31359#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {31359#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 18:01:28,684 INFO L273 TraceCheckUtils]: 89: Hoare triple {31366#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {31359#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 18:01:28,685 INFO L273 TraceCheckUtils]: 88: Hoare triple {31366#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {31366#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 18:01:28,686 INFO L273 TraceCheckUtils]: 87: Hoare triple {31373#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31366#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 18:01:28,686 INFO L273 TraceCheckUtils]: 86: Hoare triple {31373#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {31373#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,687 INFO L273 TraceCheckUtils]: 85: Hoare triple {31380#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {31373#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,688 INFO L273 TraceCheckUtils]: 84: Hoare triple {31380#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {31380#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 18:01:28,689 INFO L273 TraceCheckUtils]: 83: Hoare triple {31387#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31380#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 18:01:28,690 INFO L273 TraceCheckUtils]: 82: Hoare triple {31387#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {31387#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,691 INFO L273 TraceCheckUtils]: 81: Hoare triple {31394#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31387#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,691 INFO L273 TraceCheckUtils]: 80: Hoare triple {31394#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {31394#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,692 INFO L273 TraceCheckUtils]: 79: Hoare triple {31401#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31394#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,693 INFO L273 TraceCheckUtils]: 78: Hoare triple {31401#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {31401#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,694 INFO L273 TraceCheckUtils]: 77: Hoare triple {31408#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {31401#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,695 INFO L273 TraceCheckUtils]: 76: Hoare triple {31408#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {31408#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 18:01:28,696 INFO L273 TraceCheckUtils]: 75: Hoare triple {31415#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31408#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 18:01:28,696 INFO L273 TraceCheckUtils]: 74: Hoare triple {31415#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {31415#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,697 INFO L273 TraceCheckUtils]: 73: Hoare triple {31422#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31415#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,698 INFO L273 TraceCheckUtils]: 72: Hoare triple {31422#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {31422#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,699 INFO L273 TraceCheckUtils]: 71: Hoare triple {31429#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {31422#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,699 INFO L273 TraceCheckUtils]: 70: Hoare triple {31429#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {31429#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 18:01:28,700 INFO L273 TraceCheckUtils]: 69: Hoare triple {31436#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31429#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 18:01:28,701 INFO L273 TraceCheckUtils]: 68: Hoare triple {31436#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {31436#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,702 INFO L273 TraceCheckUtils]: 67: Hoare triple {31443#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {31436#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,703 INFO L273 TraceCheckUtils]: 66: Hoare triple {31443#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {31443#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 18:01:28,704 INFO L273 TraceCheckUtils]: 65: Hoare triple {31450#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {31443#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 18:01:28,704 INFO L273 TraceCheckUtils]: 64: Hoare triple {31450#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {31450#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 18:01:28,705 INFO L273 TraceCheckUtils]: 63: Hoare triple {31457#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {31450#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 18:01:28,706 INFO L273 TraceCheckUtils]: 62: Hoare triple {31457#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {31457#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 18:01:28,707 INFO L273 TraceCheckUtils]: 61: Hoare triple {31464#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {31457#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 18:01:28,708 INFO L273 TraceCheckUtils]: 60: Hoare triple {31464#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {31464#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 18:01:28,709 INFO L273 TraceCheckUtils]: 59: Hoare triple {31471#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {31464#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 18:01:28,709 INFO L273 TraceCheckUtils]: 58: Hoare triple {31471#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {31471#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 18:01:28,710 INFO L273 TraceCheckUtils]: 57: Hoare triple {31478#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {31471#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 18:01:28,711 INFO L273 TraceCheckUtils]: 56: Hoare triple {31478#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {31478#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 18:01:28,712 INFO L273 TraceCheckUtils]: 55: Hoare triple {31485#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31478#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 18:01:28,713 INFO L273 TraceCheckUtils]: 54: Hoare triple {31485#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {31485#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,714 INFO L273 TraceCheckUtils]: 53: Hoare triple {31492#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31485#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,714 INFO L273 TraceCheckUtils]: 52: Hoare triple {31492#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {31492#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,715 INFO L273 TraceCheckUtils]: 51: Hoare triple {31499#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31492#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,716 INFO L273 TraceCheckUtils]: 50: Hoare triple {31499#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {31499#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,717 INFO L273 TraceCheckUtils]: 49: Hoare triple {31506#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {31499#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,718 INFO L273 TraceCheckUtils]: 48: Hoare triple {31506#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {31506#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 18:01:28,719 INFO L273 TraceCheckUtils]: 47: Hoare triple {31513#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31506#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 18:01:28,719 INFO L273 TraceCheckUtils]: 46: Hoare triple {31513#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {31513#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,720 INFO L273 TraceCheckUtils]: 45: Hoare triple {31520#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {31513#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,721 INFO L273 TraceCheckUtils]: 44: Hoare triple {31520#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {31520#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 18:01:28,722 INFO L273 TraceCheckUtils]: 43: Hoare triple {31527#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {31520#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 18:01:28,722 INFO L273 TraceCheckUtils]: 42: Hoare triple {31527#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {31527#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 18:01:28,723 INFO L273 TraceCheckUtils]: 41: Hoare triple {31534#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {31527#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 18:01:28,724 INFO L273 TraceCheckUtils]: 40: Hoare triple {31534#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {31534#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 18:01:28,725 INFO L273 TraceCheckUtils]: 39: Hoare triple {31541#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31534#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 18:01:28,725 INFO L273 TraceCheckUtils]: 38: Hoare triple {31541#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {31541#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,726 INFO L273 TraceCheckUtils]: 37: Hoare triple {31548#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31541#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,727 INFO L273 TraceCheckUtils]: 36: Hoare triple {31548#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {31548#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,728 INFO L273 TraceCheckUtils]: 35: Hoare triple {31555#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {31548#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,729 INFO L273 TraceCheckUtils]: 34: Hoare triple {31555#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {31555#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 18:01:28,730 INFO L273 TraceCheckUtils]: 33: Hoare triple {31562#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31555#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 18:01:28,730 INFO L273 TraceCheckUtils]: 32: Hoare triple {31562#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {31562#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,731 INFO L273 TraceCheckUtils]: 31: Hoare triple {31569#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {31562#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,732 INFO L273 TraceCheckUtils]: 30: Hoare triple {31569#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {31569#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 18:01:28,733 INFO L273 TraceCheckUtils]: 29: Hoare triple {31576#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {31569#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 18:01:28,736 INFO L273 TraceCheckUtils]: 28: Hoare triple {31576#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {31576#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 18:01:28,737 INFO L273 TraceCheckUtils]: 27: Hoare triple {31583#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {31576#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 18:01:28,737 INFO L273 TraceCheckUtils]: 26: Hoare triple {31583#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {31583#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 18:01:28,738 INFO L273 TraceCheckUtils]: 25: Hoare triple {31590#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {31583#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 18:01:28,738 INFO L273 TraceCheckUtils]: 24: Hoare triple {31590#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {31590#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 18:01:28,739 INFO L273 TraceCheckUtils]: 23: Hoare triple {31597#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {31590#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 18:01:28,740 INFO L273 TraceCheckUtils]: 22: Hoare triple {31597#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {31597#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 18:01:28,741 INFO L273 TraceCheckUtils]: 21: Hoare triple {31604#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {31597#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 18:01:28,741 INFO L273 TraceCheckUtils]: 20: Hoare triple {31604#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {31604#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 18:01:28,742 INFO L273 TraceCheckUtils]: 19: Hoare triple {31611#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {31604#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 18:01:28,743 INFO L273 TraceCheckUtils]: 18: Hoare triple {31611#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {31611#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 18:01:28,744 INFO L273 TraceCheckUtils]: 17: Hoare triple {31618#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {31611#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 18:01:28,745 INFO L273 TraceCheckUtils]: 16: Hoare triple {31618#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {31618#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 18:01:28,746 INFO L273 TraceCheckUtils]: 15: Hoare triple {31625#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {31618#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 18:01:28,746 INFO L273 TraceCheckUtils]: 14: Hoare triple {31625#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {31625#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 18:01:28,747 INFO L273 TraceCheckUtils]: 13: Hoare triple {31632#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31625#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 18:01:28,748 INFO L273 TraceCheckUtils]: 12: Hoare triple {31632#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {31632#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,749 INFO L273 TraceCheckUtils]: 11: Hoare triple {31639#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {31632#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,749 INFO L273 TraceCheckUtils]: 10: Hoare triple {31639#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {31639#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,751 INFO L273 TraceCheckUtils]: 9: Hoare triple {31646#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {31639#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2018-12-18 18:01:28,751 INFO L273 TraceCheckUtils]: 8: Hoare triple {31646#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {31646#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2018-12-18 18:01:28,752 INFO L273 TraceCheckUtils]: 7: Hoare triple {31653#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {31646#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2018-12-18 18:01:28,753 INFO L273 TraceCheckUtils]: 6: Hoare triple {31653#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {31653#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2018-12-18 18:01:28,754 INFO L273 TraceCheckUtils]: 5: Hoare triple {31660#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {31653#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2018-12-18 18:01:28,754 INFO L273 TraceCheckUtils]: 4: Hoare triple {31660#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume i <= n * 4; {31660#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2018-12-18 18:01:28,756 INFO L273 TraceCheckUtils]: 3: Hoare triple {31667#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume a[i] != 23;i := i + 4; {31660#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2018-12-18 18:01:28,756 INFO L273 TraceCheckUtils]: 2: Hoare triple {31667#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume i <= n * 4; {31667#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2018-12-18 18:01:28,757 INFO L273 TraceCheckUtils]: 1: Hoare triple {31674#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume a[i] != 23;i := i + 4; {31667#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2018-12-18 18:01:28,758 INFO L273 TraceCheckUtils]: 0: Hoare triple {30933#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {31674#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2018-12-18 18:01:28,795 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:01:28,814 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 18:01:28,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51, 51] total 152 [2018-12-18 18:01:28,814 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 18:01:28,815 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 99 [2018-12-18 18:01:28,815 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 18:01:28,815 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 103 states. [2018-12-18 18:01:29,060 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 197 edges. 197 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 18:01:29,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 103 states [2018-12-18 18:01:29,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2018-12-18 18:01:29,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2864, Invalid=20698, Unknown=0, NotChecked=0, Total=23562 [2018-12-18 18:01:29,062 INFO L87 Difference]: Start difference. First operand 100 states and 100 transitions. Second operand 103 states. [2018-12-18 18:01:48,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:01:48,037 INFO L93 Difference]: Finished difference Result 104 states and 104 transitions. [2018-12-18 18:01:48,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-12-18 18:01:48,037 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 99 [2018-12-18 18:01:48,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 18:01:48,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-12-18 18:01:48,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 104 transitions. [2018-12-18 18:01:48,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-12-18 18:01:48,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 104 transitions. [2018-12-18 18:01:48,040 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 53 states and 104 transitions. [2018-12-18 18:01:48,157 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 104 edges. 104 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 18:01:48,159 INFO L225 Difference]: With dead ends: 104 [2018-12-18 18:01:48,159 INFO L226 Difference]: Without dead ends: 103 [2018-12-18 18:01:48,160 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5300 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=2864, Invalid=20698, Unknown=0, NotChecked=0, Total=23562 [2018-12-18 18:01:48,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-12-18 18:01:48,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2018-12-18 18:01:48,266 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 18:01:48,266 INFO L82 GeneralOperation]: Start isEquivalent. First operand 103 states. Second operand 102 states. [2018-12-18 18:01:48,266 INFO L74 IsIncluded]: Start isIncluded. First operand 103 states. Second operand 102 states. [2018-12-18 18:01:48,267 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 102 states. [2018-12-18 18:01:48,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:01:48,268 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2018-12-18 18:01:48,269 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 103 transitions. [2018-12-18 18:01:48,269 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 18:01:48,269 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 18:01:48,269 INFO L74 IsIncluded]: Start isIncluded. First operand 102 states. Second operand 103 states. [2018-12-18 18:01:48,269 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 103 states. [2018-12-18 18:01:48,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:01:48,270 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2018-12-18 18:01:48,271 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 103 transitions. [2018-12-18 18:01:48,271 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 18:01:48,271 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 18:01:48,271 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 18:01:48,271 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 18:01:48,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-12-18 18:01:48,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2018-12-18 18:01:48,272 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 99 [2018-12-18 18:01:48,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 18:01:48,272 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2018-12-18 18:01:48,272 INFO L481 AbstractCegarLoop]: Interpolant automaton has 103 states. [2018-12-18 18:01:48,272 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2018-12-18 18:01:48,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-12-18 18:01:48,273 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 18:01:48,273 INFO L402 BasicCegarLoop]: trace histogram [50, 49, 1, 1] [2018-12-18 18:01:48,273 INFO L423 AbstractCegarLoop]: === Iteration 50 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 18:01:48,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 18:01:48,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1416429954, now seen corresponding path program 49 times [2018-12-18 18:01:48,273 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 18:01:48,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 18:01:48,274 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 18:01:48,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 18:01:48,274 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 18:01:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 18:01:51,234 INFO L273 TraceCheckUtils]: 0: Hoare triple {32190#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {32192#(and (or (<= 0 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,236 INFO L273 TraceCheckUtils]: 1: Hoare triple {32192#(and (or (<= 0 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 0)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32193#(and (or (<= main_n 49) (<= main_i 4)) (or (<= 4 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,236 INFO L273 TraceCheckUtils]: 2: Hoare triple {32193#(and (or (<= main_n 49) (<= main_i 4)) (or (<= 4 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32193#(and (or (<= main_n 49) (<= main_i 4)) (or (<= 4 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,237 INFO L273 TraceCheckUtils]: 3: Hoare triple {32193#(and (or (<= main_n 49) (<= main_i 4)) (or (<= 4 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32194#(and (= 23 (select main_a (* 4 main_n))) (or (<= 8 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 8)))} is VALID [2018-12-18 18:01:51,238 INFO L273 TraceCheckUtils]: 4: Hoare triple {32194#(and (= 23 (select main_a (* 4 main_n))) (or (<= 8 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 8)))} assume i <= n * 4; {32194#(and (= 23 (select main_a (* 4 main_n))) (or (<= 8 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 8)))} is VALID [2018-12-18 18:01:51,239 INFO L273 TraceCheckUtils]: 5: Hoare triple {32194#(and (= 23 (select main_a (* 4 main_n))) (or (<= 8 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 8)))} assume a[i] != 23;i := i + 4; {32195#(and (or (<= main_n 49) (<= main_i 12)) (or (<= 12 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,240 INFO L273 TraceCheckUtils]: 6: Hoare triple {32195#(and (or (<= main_n 49) (<= main_i 12)) (or (<= 12 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32195#(and (or (<= main_n 49) (<= main_i 12)) (or (<= 12 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,241 INFO L273 TraceCheckUtils]: 7: Hoare triple {32195#(and (or (<= main_n 49) (<= main_i 12)) (or (<= 12 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32196#(and (or (<= 16 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,242 INFO L273 TraceCheckUtils]: 8: Hoare triple {32196#(and (or (<= 16 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32196#(and (or (<= 16 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,243 INFO L273 TraceCheckUtils]: 9: Hoare triple {32196#(and (or (<= 16 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 16)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32197#(and (or (<= 20 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,243 INFO L273 TraceCheckUtils]: 10: Hoare triple {32197#(and (or (<= 20 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32197#(and (or (<= 20 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,244 INFO L273 TraceCheckUtils]: 11: Hoare triple {32197#(and (or (<= 20 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 20)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32198#(and (or (<= 24 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,245 INFO L273 TraceCheckUtils]: 12: Hoare triple {32198#(and (or (<= 24 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32198#(and (or (<= 24 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,246 INFO L273 TraceCheckUtils]: 13: Hoare triple {32198#(and (or (<= 24 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 24)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32199#(and (or (<= 28 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,247 INFO L273 TraceCheckUtils]: 14: Hoare triple {32199#(and (or (<= 28 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32199#(and (or (<= 28 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,248 INFO L273 TraceCheckUtils]: 15: Hoare triple {32199#(and (or (<= 28 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 28)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32200#(and (or (<= main_i 32) (<= main_n 49)) (or (<= 32 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,249 INFO L273 TraceCheckUtils]: 16: Hoare triple {32200#(and (or (<= main_i 32) (<= main_n 49)) (or (<= 32 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32200#(and (or (<= main_i 32) (<= main_n 49)) (or (<= 32 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,250 INFO L273 TraceCheckUtils]: 17: Hoare triple {32200#(and (or (<= main_i 32) (<= main_n 49)) (or (<= 32 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32201#(and (or (<= main_i 36) (<= main_n 49)) (or (< 49 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,250 INFO L273 TraceCheckUtils]: 18: Hoare triple {32201#(and (or (<= main_i 36) (<= main_n 49)) (or (< 49 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32201#(and (or (<= main_i 36) (<= main_n 49)) (or (< 49 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,251 INFO L273 TraceCheckUtils]: 19: Hoare triple {32201#(and (or (<= main_i 36) (<= main_n 49)) (or (< 49 main_n) (<= 36 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32202#(and (or (<= 40 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,252 INFO L273 TraceCheckUtils]: 20: Hoare triple {32202#(and (or (<= 40 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32202#(and (or (<= 40 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,253 INFO L273 TraceCheckUtils]: 21: Hoare triple {32202#(and (or (<= 40 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 40)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32203#(and (or (<= 44 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,254 INFO L273 TraceCheckUtils]: 22: Hoare triple {32203#(and (or (<= 44 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32203#(and (or (<= 44 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,255 INFO L273 TraceCheckUtils]: 23: Hoare triple {32203#(and (or (<= 44 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 44)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32204#(and (or (<= main_n 49) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 49 main_n)))} is VALID [2018-12-18 18:01:51,256 INFO L273 TraceCheckUtils]: 24: Hoare triple {32204#(and (or (<= main_n 49) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 49 main_n)))} assume i <= n * 4; {32204#(and (or (<= main_n 49) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 49 main_n)))} is VALID [2018-12-18 18:01:51,257 INFO L273 TraceCheckUtils]: 25: Hoare triple {32204#(and (or (<= main_n 49) (<= main_i 48)) (= 23 (select main_a (* 4 main_n))) (or (<= 48 main_i) (< 49 main_n)))} assume a[i] != 23;i := i + 4; {32205#(and (or (<= 52 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,257 INFO L273 TraceCheckUtils]: 26: Hoare triple {32205#(and (or (<= 52 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32205#(and (or (<= 52 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,258 INFO L273 TraceCheckUtils]: 27: Hoare triple {32205#(and (or (<= 52 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 52)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32206#(and (or (<= main_n 49) (<= main_i 56)) (or (<= 56 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,259 INFO L273 TraceCheckUtils]: 28: Hoare triple {32206#(and (or (<= main_n 49) (<= main_i 56)) (or (<= 56 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32206#(and (or (<= main_n 49) (<= main_i 56)) (or (<= 56 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,260 INFO L273 TraceCheckUtils]: 29: Hoare triple {32206#(and (or (<= main_n 49) (<= main_i 56)) (or (<= 56 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32207#(and (or (<= main_n 49) (<= main_i 60)) (or (<= 60 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,261 INFO L273 TraceCheckUtils]: 30: Hoare triple {32207#(and (or (<= main_n 49) (<= main_i 60)) (or (<= 60 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32207#(and (or (<= main_n 49) (<= main_i 60)) (or (<= 60 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,262 INFO L273 TraceCheckUtils]: 31: Hoare triple {32207#(and (or (<= main_n 49) (<= main_i 60)) (or (<= 60 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32208#(and (or (<= main_n 49) (<= main_i 64)) (or (<= 64 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,263 INFO L273 TraceCheckUtils]: 32: Hoare triple {32208#(and (or (<= main_n 49) (<= main_i 64)) (or (<= 64 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32208#(and (or (<= main_n 49) (<= main_i 64)) (or (<= 64 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,264 INFO L273 TraceCheckUtils]: 33: Hoare triple {32208#(and (or (<= main_n 49) (<= main_i 64)) (or (<= 64 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32209#(and (or (<= 68 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 68)))} is VALID [2018-12-18 18:01:51,264 INFO L273 TraceCheckUtils]: 34: Hoare triple {32209#(and (or (<= 68 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 68)))} assume i <= n * 4; {32209#(and (or (<= 68 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 68)))} is VALID [2018-12-18 18:01:51,265 INFO L273 TraceCheckUtils]: 35: Hoare triple {32209#(and (or (<= 68 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 68)))} assume a[i] != 23;i := i + 4; {32210#(and (or (<= main_n 49) (<= main_i 72)) (or (<= 72 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,266 INFO L273 TraceCheckUtils]: 36: Hoare triple {32210#(and (or (<= main_n 49) (<= main_i 72)) (or (<= 72 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32210#(and (or (<= main_n 49) (<= main_i 72)) (or (<= 72 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,267 INFO L273 TraceCheckUtils]: 37: Hoare triple {32210#(and (or (<= main_n 49) (<= main_i 72)) (or (<= 72 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32211#(and (or (<= 76 main_i) (< 49 main_n)) (or (<= main_i 76) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,268 INFO L273 TraceCheckUtils]: 38: Hoare triple {32211#(and (or (<= 76 main_i) (< 49 main_n)) (or (<= main_i 76) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32211#(and (or (<= 76 main_i) (< 49 main_n)) (or (<= main_i 76) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,269 INFO L273 TraceCheckUtils]: 39: Hoare triple {32211#(and (or (<= 76 main_i) (< 49 main_n)) (or (<= main_i 76) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32212#(and (or (<= 80 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,270 INFO L273 TraceCheckUtils]: 40: Hoare triple {32212#(and (or (<= 80 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32212#(and (or (<= 80 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,271 INFO L273 TraceCheckUtils]: 41: Hoare triple {32212#(and (or (<= 80 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 80)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32213#(and (or (<= main_n 49) (<= main_i 84)) (or (< 49 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,271 INFO L273 TraceCheckUtils]: 42: Hoare triple {32213#(and (or (<= main_n 49) (<= main_i 84)) (or (< 49 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32213#(and (or (<= main_n 49) (<= main_i 84)) (or (< 49 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,272 INFO L273 TraceCheckUtils]: 43: Hoare triple {32213#(and (or (<= main_n 49) (<= main_i 84)) (or (< 49 main_n) (<= 84 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32214#(and (or (<= 88 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 88)))} is VALID [2018-12-18 18:01:51,273 INFO L273 TraceCheckUtils]: 44: Hoare triple {32214#(and (or (<= 88 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 88)))} assume i <= n * 4; {32214#(and (or (<= 88 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 88)))} is VALID [2018-12-18 18:01:51,274 INFO L273 TraceCheckUtils]: 45: Hoare triple {32214#(and (or (<= 88 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 88)))} assume a[i] != 23;i := i + 4; {32215#(and (or (<= 92 main_i) (< 49 main_n)) (or (<= main_i 92) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,275 INFO L273 TraceCheckUtils]: 46: Hoare triple {32215#(and (or (<= 92 main_i) (< 49 main_n)) (or (<= main_i 92) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32215#(and (or (<= 92 main_i) (< 49 main_n)) (or (<= main_i 92) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,276 INFO L273 TraceCheckUtils]: 47: Hoare triple {32215#(and (or (<= 92 main_i) (< 49 main_n)) (or (<= main_i 92) (<= main_n 49)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32216#(and (or (<= 96 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 49)))} is VALID [2018-12-18 18:01:51,277 INFO L273 TraceCheckUtils]: 48: Hoare triple {32216#(and (or (<= 96 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 49)))} assume i <= n * 4; {32216#(and (or (<= 96 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 49)))} is VALID [2018-12-18 18:01:51,278 INFO L273 TraceCheckUtils]: 49: Hoare triple {32216#(and (or (<= 96 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_i 96) (<= main_n 49)))} assume a[i] != 23;i := i + 4; {32217#(and (or (<= 100 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,278 INFO L273 TraceCheckUtils]: 50: Hoare triple {32217#(and (or (<= 100 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32217#(and (or (<= 100 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,280 INFO L273 TraceCheckUtils]: 51: Hoare triple {32217#(and (or (<= 100 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 100)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32218#(and (or (<= main_i 104) (<= main_n 49)) (or (<= 104 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,280 INFO L273 TraceCheckUtils]: 52: Hoare triple {32218#(and (or (<= main_i 104) (<= main_n 49)) (or (<= 104 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32218#(and (or (<= main_i 104) (<= main_n 49)) (or (<= 104 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,281 INFO L273 TraceCheckUtils]: 53: Hoare triple {32218#(and (or (<= main_i 104) (<= main_n 49)) (or (<= 104 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32219#(and (or (<= main_n 49) (<= main_i 108)) (or (<= 108 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,282 INFO L273 TraceCheckUtils]: 54: Hoare triple {32219#(and (or (<= main_n 49) (<= main_i 108)) (or (<= 108 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32219#(and (or (<= main_n 49) (<= main_i 108)) (or (<= 108 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,283 INFO L273 TraceCheckUtils]: 55: Hoare triple {32219#(and (or (<= main_n 49) (<= main_i 108)) (or (<= 108 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32220#(and (or (< 49 main_n) (<= 112 main_i)) (or (<= main_n 49) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,284 INFO L273 TraceCheckUtils]: 56: Hoare triple {32220#(and (or (< 49 main_n) (<= 112 main_i)) (or (<= main_n 49) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32220#(and (or (< 49 main_n) (<= 112 main_i)) (or (<= main_n 49) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,285 INFO L273 TraceCheckUtils]: 57: Hoare triple {32220#(and (or (< 49 main_n) (<= 112 main_i)) (or (<= main_n 49) (<= main_i 112)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32221#(and (or (<= 116 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,286 INFO L273 TraceCheckUtils]: 58: Hoare triple {32221#(and (or (<= 116 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32221#(and (or (<= 116 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,287 INFO L273 TraceCheckUtils]: 59: Hoare triple {32221#(and (or (<= 116 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 116)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32222#(and (or (<= 120 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,287 INFO L273 TraceCheckUtils]: 60: Hoare triple {32222#(and (or (<= 120 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32222#(and (or (<= 120 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,288 INFO L273 TraceCheckUtils]: 61: Hoare triple {32222#(and (or (<= 120 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 120)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32223#(and (or (<= 124 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,289 INFO L273 TraceCheckUtils]: 62: Hoare triple {32223#(and (or (<= 124 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32223#(and (or (<= 124 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,290 INFO L273 TraceCheckUtils]: 63: Hoare triple {32223#(and (or (<= 124 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 124)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32224#(and (or (<= main_n 49) (<= main_i 128)) (or (<= 128 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,291 INFO L273 TraceCheckUtils]: 64: Hoare triple {32224#(and (or (<= main_n 49) (<= main_i 128)) (or (<= 128 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32224#(and (or (<= main_n 49) (<= main_i 128)) (or (<= 128 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,292 INFO L273 TraceCheckUtils]: 65: Hoare triple {32224#(and (or (<= main_n 49) (<= main_i 128)) (or (<= 128 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32225#(and (or (<= 132 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,293 INFO L273 TraceCheckUtils]: 66: Hoare triple {32225#(and (or (<= 132 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32225#(and (or (<= 132 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,294 INFO L273 TraceCheckUtils]: 67: Hoare triple {32225#(and (or (<= 132 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 132)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32226#(and (or (<= main_n 49) (<= main_i 136)) (or (<= 136 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,294 INFO L273 TraceCheckUtils]: 68: Hoare triple {32226#(and (or (<= main_n 49) (<= main_i 136)) (or (<= 136 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32226#(and (or (<= main_n 49) (<= main_i 136)) (or (<= 136 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,295 INFO L273 TraceCheckUtils]: 69: Hoare triple {32226#(and (or (<= main_n 49) (<= main_i 136)) (or (<= 136 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32227#(and (or (<= main_n 49) (<= main_i 140)) (or (< 49 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,296 INFO L273 TraceCheckUtils]: 70: Hoare triple {32227#(and (or (<= main_n 49) (<= main_i 140)) (or (< 49 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32227#(and (or (<= main_n 49) (<= main_i 140)) (or (< 49 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,297 INFO L273 TraceCheckUtils]: 71: Hoare triple {32227#(and (or (<= main_n 49) (<= main_i 140)) (or (< 49 main_n) (<= 140 main_i)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32228#(and (or (<= main_n 49) (<= main_i 144)) (or (<= 144 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,298 INFO L273 TraceCheckUtils]: 72: Hoare triple {32228#(and (or (<= main_n 49) (<= main_i 144)) (or (<= 144 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32228#(and (or (<= main_n 49) (<= main_i 144)) (or (<= 144 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,299 INFO L273 TraceCheckUtils]: 73: Hoare triple {32228#(and (or (<= main_n 49) (<= main_i 144)) (or (<= 144 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32229#(and (or (<= 148 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 148)))} is VALID [2018-12-18 18:01:51,300 INFO L273 TraceCheckUtils]: 74: Hoare triple {32229#(and (or (<= 148 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 148)))} assume i <= n * 4; {32229#(and (or (<= 148 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 148)))} is VALID [2018-12-18 18:01:51,301 INFO L273 TraceCheckUtils]: 75: Hoare triple {32229#(and (or (<= 148 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 148)))} assume a[i] != 23;i := i + 4; {32230#(and (or (<= 152 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 152)))} is VALID [2018-12-18 18:01:51,301 INFO L273 TraceCheckUtils]: 76: Hoare triple {32230#(and (or (<= 152 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 152)))} assume i <= n * 4; {32230#(and (or (<= 152 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 152)))} is VALID [2018-12-18 18:01:51,302 INFO L273 TraceCheckUtils]: 77: Hoare triple {32230#(and (or (<= 152 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 152)))} assume a[i] != 23;i := i + 4; {32231#(and (or (<= main_n 49) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 49 main_n)))} is VALID [2018-12-18 18:01:51,303 INFO L273 TraceCheckUtils]: 78: Hoare triple {32231#(and (or (<= main_n 49) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 49 main_n)))} assume i <= n * 4; {32231#(and (or (<= main_n 49) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 49 main_n)))} is VALID [2018-12-18 18:01:51,304 INFO L273 TraceCheckUtils]: 79: Hoare triple {32231#(and (or (<= main_n 49) (<= main_i 156)) (= 23 (select main_a (* 4 main_n))) (or (<= 156 main_i) (< 49 main_n)))} assume a[i] != 23;i := i + 4; {32232#(and (or (<= main_n 49) (<= main_i 160)) (or (<= 160 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,305 INFO L273 TraceCheckUtils]: 80: Hoare triple {32232#(and (or (<= main_n 49) (<= main_i 160)) (or (<= 160 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32232#(and (or (<= main_n 49) (<= main_i 160)) (or (<= 160 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,306 INFO L273 TraceCheckUtils]: 81: Hoare triple {32232#(and (or (<= main_n 49) (<= main_i 160)) (or (<= 160 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32233#(and (or (<= main_n 49) (<= main_i 164)) (or (<= 164 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,307 INFO L273 TraceCheckUtils]: 82: Hoare triple {32233#(and (or (<= main_n 49) (<= main_i 164)) (or (<= 164 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32233#(and (or (<= main_n 49) (<= main_i 164)) (or (<= 164 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,308 INFO L273 TraceCheckUtils]: 83: Hoare triple {32233#(and (or (<= main_n 49) (<= main_i 164)) (or (<= 164 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32234#(and (or (<= main_n 49) (<= main_i 168)) (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 49 main_n)))} is VALID [2018-12-18 18:01:51,308 INFO L273 TraceCheckUtils]: 84: Hoare triple {32234#(and (or (<= main_n 49) (<= main_i 168)) (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 49 main_n)))} assume i <= n * 4; {32234#(and (or (<= main_n 49) (<= main_i 168)) (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 49 main_n)))} is VALID [2018-12-18 18:01:51,309 INFO L273 TraceCheckUtils]: 85: Hoare triple {32234#(and (or (<= main_n 49) (<= main_i 168)) (= 23 (select main_a (* 4 main_n))) (or (<= 168 main_i) (< 49 main_n)))} assume a[i] != 23;i := i + 4; {32235#(and (or (<= main_n 49) (<= main_i 172)) (or (<= 172 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,310 INFO L273 TraceCheckUtils]: 86: Hoare triple {32235#(and (or (<= main_n 49) (<= main_i 172)) (or (<= 172 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32235#(and (or (<= main_n 49) (<= main_i 172)) (or (<= 172 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,311 INFO L273 TraceCheckUtils]: 87: Hoare triple {32235#(and (or (<= main_n 49) (<= main_i 172)) (or (<= 172 main_i) (< 49 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32236#(and (or (<= 176 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,312 INFO L273 TraceCheckUtils]: 88: Hoare triple {32236#(and (or (<= 176 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32236#(and (or (<= 176 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,313 INFO L273 TraceCheckUtils]: 89: Hoare triple {32236#(and (or (<= 176 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 176)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32237#(and (or (<= 180 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,314 INFO L273 TraceCheckUtils]: 90: Hoare triple {32237#(and (or (<= 180 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32237#(and (or (<= 180 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,315 INFO L273 TraceCheckUtils]: 91: Hoare triple {32237#(and (or (<= 180 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 180)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32238#(and (or (< 49 main_n) (<= 184 main_i)) (or (<= main_n 49) (<= main_i 184)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,315 INFO L273 TraceCheckUtils]: 92: Hoare triple {32238#(and (or (< 49 main_n) (<= 184 main_i)) (or (<= main_n 49) (<= main_i 184)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32238#(and (or (< 49 main_n) (<= 184 main_i)) (or (<= main_n 49) (<= main_i 184)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,316 INFO L273 TraceCheckUtils]: 93: Hoare triple {32238#(and (or (< 49 main_n) (<= 184 main_i)) (or (<= main_n 49) (<= main_i 184)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32239#(and (or (< 49 main_n) (<= 188 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 188)))} is VALID [2018-12-18 18:01:51,317 INFO L273 TraceCheckUtils]: 94: Hoare triple {32239#(and (or (< 49 main_n) (<= 188 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 188)))} assume i <= n * 4; {32239#(and (or (< 49 main_n) (<= 188 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 188)))} is VALID [2018-12-18 18:01:51,318 INFO L273 TraceCheckUtils]: 95: Hoare triple {32239#(and (or (< 49 main_n) (<= 188 main_i)) (= 23 (select main_a (* 4 main_n))) (or (<= main_n 49) (<= main_i 188)))} assume a[i] != 23;i := i + 4; {32240#(and (or (<= 192 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 192)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,319 INFO L273 TraceCheckUtils]: 96: Hoare triple {32240#(and (or (<= 192 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 192)) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32240#(and (or (<= 192 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 192)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:51,320 INFO L273 TraceCheckUtils]: 97: Hoare triple {32240#(and (or (<= 192 main_i) (< 49 main_n)) (or (<= main_n 49) (<= main_i 192)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32241#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 49) (<= main_i 196)) (or (<= (* 4 main_n) main_i) (< 49 main_n)))))} is VALID [2018-12-18 18:01:51,321 INFO L273 TraceCheckUtils]: 98: Hoare triple {32241#(and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (or (= (* 4 main_n) main_i) (and (or (<= main_n 49) (<= main_i 196)) (or (<= (* 4 main_n) main_i) (< 49 main_n)))))} assume i <= n * 4; {32242#(and (or (= (* 4 main_n) main_i) (and (< 49 main_n) (<= main_i 196))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} is VALID [2018-12-18 18:01:51,322 INFO L273 TraceCheckUtils]: 99: Hoare triple {32242#(and (or (= (* 4 main_n) main_i) (and (< 49 main_n) (<= main_i 196))) (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))))} assume a[i] != 23;i := i + 4; {32243#(and (<= main_i 200) (< 49 main_n))} is VALID [2018-12-18 18:01:51,323 INFO L273 TraceCheckUtils]: 100: Hoare triple {32243#(and (<= main_i 200) (< 49 main_n))} assume !(i <= n * 4); {32191#false} is VALID [2018-12-18 18:01:51,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:01:51,366 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 18:01:51,366 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 18:01:51,366 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 18:01:51,366 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 18:01:51,366 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 18:01:51,366 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 18:01:51,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 18:01:51,374 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-18 18:01:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 18:01:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 18:01:51,420 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 18:01:51,437 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 18:01:51,438 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 18:01:51,444 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 18:01:51,445 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 18:01:51,446 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 18:01:51,447 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_53]. (and (= main_a (store v_main_a_53 (* 4 main_n) 23)) (= main_i 0)) [2018-12-18 18:01:51,447 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 18:01:55,408 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 18:01:55,410 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 18:01:55,416 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 18:01:55,416 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 18:01:55,418 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 18:01:55,419 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 196))) (<= 196 .cse0) (<= main_i 200) (= 23 (select main_a .cse0)))) [2018-12-18 18:01:55,419 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 196 .cse0)) (<= 196 .cse0) (<= main_i 200))) [2018-12-18 18:01:55,481 INFO L273 TraceCheckUtils]: 0: Hoare triple {32190#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {32247#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,482 INFO L273 TraceCheckUtils]: 1: Hoare triple {32247#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32251#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 18:01:55,482 INFO L273 TraceCheckUtils]: 2: Hoare triple {32251#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {32251#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 18:01:55,483 INFO L273 TraceCheckUtils]: 3: Hoare triple {32251#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {32258#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,484 INFO L273 TraceCheckUtils]: 4: Hoare triple {32258#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32258#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,484 INFO L273 TraceCheckUtils]: 5: Hoare triple {32258#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 18:01:55,485 INFO L273 TraceCheckUtils]: 6: Hoare triple {32265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {32265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 18:01:55,486 INFO L273 TraceCheckUtils]: 7: Hoare triple {32265#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {32272#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,486 INFO L273 TraceCheckUtils]: 8: Hoare triple {32272#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32272#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,487 INFO L273 TraceCheckUtils]: 9: Hoare triple {32272#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32279#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,488 INFO L273 TraceCheckUtils]: 10: Hoare triple {32279#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32279#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,489 INFO L273 TraceCheckUtils]: 11: Hoare triple {32279#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32286#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,489 INFO L273 TraceCheckUtils]: 12: Hoare triple {32286#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32286#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,490 INFO L273 TraceCheckUtils]: 13: Hoare triple {32286#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32293#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,491 INFO L273 TraceCheckUtils]: 14: Hoare triple {32293#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32293#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,491 INFO L273 TraceCheckUtils]: 15: Hoare triple {32293#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32300#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,492 INFO L273 TraceCheckUtils]: 16: Hoare triple {32300#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32300#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,493 INFO L273 TraceCheckUtils]: 17: Hoare triple {32300#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32307#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,493 INFO L273 TraceCheckUtils]: 18: Hoare triple {32307#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32307#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,494 INFO L273 TraceCheckUtils]: 19: Hoare triple {32307#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32314#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,495 INFO L273 TraceCheckUtils]: 20: Hoare triple {32314#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32314#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,495 INFO L273 TraceCheckUtils]: 21: Hoare triple {32314#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32321#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,496 INFO L273 TraceCheckUtils]: 22: Hoare triple {32321#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32321#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,497 INFO L273 TraceCheckUtils]: 23: Hoare triple {32321#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32328#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,497 INFO L273 TraceCheckUtils]: 24: Hoare triple {32328#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32328#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,498 INFO L273 TraceCheckUtils]: 25: Hoare triple {32328#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32335#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,499 INFO L273 TraceCheckUtils]: 26: Hoare triple {32335#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32335#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,499 INFO L273 TraceCheckUtils]: 27: Hoare triple {32335#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32342#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,500 INFO L273 TraceCheckUtils]: 28: Hoare triple {32342#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32342#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,501 INFO L273 TraceCheckUtils]: 29: Hoare triple {32342#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32349#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,501 INFO L273 TraceCheckUtils]: 30: Hoare triple {32349#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32349#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,502 INFO L273 TraceCheckUtils]: 31: Hoare triple {32349#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32356#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,503 INFO L273 TraceCheckUtils]: 32: Hoare triple {32356#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32356#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,503 INFO L273 TraceCheckUtils]: 33: Hoare triple {32356#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32363#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,504 INFO L273 TraceCheckUtils]: 34: Hoare triple {32363#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32363#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,505 INFO L273 TraceCheckUtils]: 35: Hoare triple {32363#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32370#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,505 INFO L273 TraceCheckUtils]: 36: Hoare triple {32370#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32370#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,506 INFO L273 TraceCheckUtils]: 37: Hoare triple {32370#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32377#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,507 INFO L273 TraceCheckUtils]: 38: Hoare triple {32377#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32377#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,507 INFO L273 TraceCheckUtils]: 39: Hoare triple {32377#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32384#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 18:01:55,508 INFO L273 TraceCheckUtils]: 40: Hoare triple {32384#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {32384#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 18:01:55,509 INFO L273 TraceCheckUtils]: 41: Hoare triple {32384#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {32391#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,509 INFO L273 TraceCheckUtils]: 42: Hoare triple {32391#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32391#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,510 INFO L273 TraceCheckUtils]: 43: Hoare triple {32391#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32398#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,511 INFO L273 TraceCheckUtils]: 44: Hoare triple {32398#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32398#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,512 INFO L273 TraceCheckUtils]: 45: Hoare triple {32398#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32405#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,512 INFO L273 TraceCheckUtils]: 46: Hoare triple {32405#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32405#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,513 INFO L273 TraceCheckUtils]: 47: Hoare triple {32405#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32412#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,514 INFO L273 TraceCheckUtils]: 48: Hoare triple {32412#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32412#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,514 INFO L273 TraceCheckUtils]: 49: Hoare triple {32412#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32419#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,515 INFO L273 TraceCheckUtils]: 50: Hoare triple {32419#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32419#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,516 INFO L273 TraceCheckUtils]: 51: Hoare triple {32419#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32426#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,517 INFO L273 TraceCheckUtils]: 52: Hoare triple {32426#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32426#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,517 INFO L273 TraceCheckUtils]: 53: Hoare triple {32426#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32433#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,518 INFO L273 TraceCheckUtils]: 54: Hoare triple {32433#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32433#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,519 INFO L273 TraceCheckUtils]: 55: Hoare triple {32433#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32440#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,519 INFO L273 TraceCheckUtils]: 56: Hoare triple {32440#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32440#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,520 INFO L273 TraceCheckUtils]: 57: Hoare triple {32440#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32447#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,521 INFO L273 TraceCheckUtils]: 58: Hoare triple {32447#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32447#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,521 INFO L273 TraceCheckUtils]: 59: Hoare triple {32447#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32454#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,522 INFO L273 TraceCheckUtils]: 60: Hoare triple {32454#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32454#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,523 INFO L273 TraceCheckUtils]: 61: Hoare triple {32454#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32461#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,523 INFO L273 TraceCheckUtils]: 62: Hoare triple {32461#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32461#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,524 INFO L273 TraceCheckUtils]: 63: Hoare triple {32461#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32468#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,525 INFO L273 TraceCheckUtils]: 64: Hoare triple {32468#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32468#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,526 INFO L273 TraceCheckUtils]: 65: Hoare triple {32468#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32475#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,526 INFO L273 TraceCheckUtils]: 66: Hoare triple {32475#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32475#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,527 INFO L273 TraceCheckUtils]: 67: Hoare triple {32475#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32482#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,528 INFO L273 TraceCheckUtils]: 68: Hoare triple {32482#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32482#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,528 INFO L273 TraceCheckUtils]: 69: Hoare triple {32482#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32489#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 18:01:55,529 INFO L273 TraceCheckUtils]: 70: Hoare triple {32489#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {32489#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 18:01:55,530 INFO L273 TraceCheckUtils]: 71: Hoare triple {32489#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {32496#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,530 INFO L273 TraceCheckUtils]: 72: Hoare triple {32496#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32496#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,531 INFO L273 TraceCheckUtils]: 73: Hoare triple {32496#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32503#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,532 INFO L273 TraceCheckUtils]: 74: Hoare triple {32503#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32503#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,533 INFO L273 TraceCheckUtils]: 75: Hoare triple {32503#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32510#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,533 INFO L273 TraceCheckUtils]: 76: Hoare triple {32510#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32510#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,534 INFO L273 TraceCheckUtils]: 77: Hoare triple {32510#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32517#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,534 INFO L273 TraceCheckUtils]: 78: Hoare triple {32517#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32517#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,535 INFO L273 TraceCheckUtils]: 79: Hoare triple {32517#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32524#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,536 INFO L273 TraceCheckUtils]: 80: Hoare triple {32524#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32524#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,537 INFO L273 TraceCheckUtils]: 81: Hoare triple {32524#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32531#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 18:01:55,537 INFO L273 TraceCheckUtils]: 82: Hoare triple {32531#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {32531#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 18:01:55,538 INFO L273 TraceCheckUtils]: 83: Hoare triple {32531#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {32538#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,538 INFO L273 TraceCheckUtils]: 84: Hoare triple {32538#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32538#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,539 INFO L273 TraceCheckUtils]: 85: Hoare triple {32538#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32545#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,540 INFO L273 TraceCheckUtils]: 86: Hoare triple {32545#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32545#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,541 INFO L273 TraceCheckUtils]: 87: Hoare triple {32545#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32552#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,541 INFO L273 TraceCheckUtils]: 88: Hoare triple {32552#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32552#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,542 INFO L273 TraceCheckUtils]: 89: Hoare triple {32552#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32559#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,542 INFO L273 TraceCheckUtils]: 90: Hoare triple {32559#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32559#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,543 INFO L273 TraceCheckUtils]: 91: Hoare triple {32559#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32566#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,544 INFO L273 TraceCheckUtils]: 92: Hoare triple {32566#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32566#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,545 INFO L273 TraceCheckUtils]: 93: Hoare triple {32566#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32573#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,545 INFO L273 TraceCheckUtils]: 94: Hoare triple {32573#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32573#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,546 INFO L273 TraceCheckUtils]: 95: Hoare triple {32573#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32580#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,547 INFO L273 TraceCheckUtils]: 96: Hoare triple {32580#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32580#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,547 INFO L273 TraceCheckUtils]: 97: Hoare triple {32580#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32587#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,548 INFO L273 TraceCheckUtils]: 98: Hoare triple {32587#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {32591#(and (= main_i 196) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:01:55,549 INFO L273 TraceCheckUtils]: 99: Hoare triple {32591#(and (= main_i 196) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {32243#(and (<= main_i 200) (< 49 main_n))} is VALID [2018-12-18 18:01:55,550 INFO L273 TraceCheckUtils]: 100: Hoare triple {32243#(and (<= main_i 200) (< 49 main_n))} assume !(i <= n * 4); {32191#false} is VALID [2018-12-18 18:01:55,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:01:55,579 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 18:02:02,514 INFO L273 TraceCheckUtils]: 100: Hoare triple {32598#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {32191#false} is VALID [2018-12-18 18:02:02,515 INFO L273 TraceCheckUtils]: 99: Hoare triple {32602#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {32598#(<= main_i (* 4 main_n))} is VALID [2018-12-18 18:02:02,516 INFO L273 TraceCheckUtils]: 98: Hoare triple {32606#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {32602#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 18:02:02,517 INFO L273 TraceCheckUtils]: 97: Hoare triple {32610#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {32606#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 18:02:02,517 INFO L273 TraceCheckUtils]: 96: Hoare triple {32610#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {32610#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 18:02:02,519 INFO L273 TraceCheckUtils]: 95: Hoare triple {32617#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {32610#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 18:02:02,519 INFO L273 TraceCheckUtils]: 94: Hoare triple {32617#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {32617#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 18:02:02,520 INFO L273 TraceCheckUtils]: 93: Hoare triple {32624#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {32617#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 18:02:02,521 INFO L273 TraceCheckUtils]: 92: Hoare triple {32624#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {32624#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 18:02:02,522 INFO L273 TraceCheckUtils]: 91: Hoare triple {32631#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {32624#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 18:02:02,522 INFO L273 TraceCheckUtils]: 90: Hoare triple {32631#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {32631#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 18:02:02,523 INFO L273 TraceCheckUtils]: 89: Hoare triple {32638#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32631#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 18:02:02,524 INFO L273 TraceCheckUtils]: 88: Hoare triple {32638#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {32638#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,525 INFO L273 TraceCheckUtils]: 87: Hoare triple {32645#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {32638#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,525 INFO L273 TraceCheckUtils]: 86: Hoare triple {32645#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {32645#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 18:02:02,526 INFO L273 TraceCheckUtils]: 85: Hoare triple {32652#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32645#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 18:02:02,527 INFO L273 TraceCheckUtils]: 84: Hoare triple {32652#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {32652#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,528 INFO L273 TraceCheckUtils]: 83: Hoare triple {32659#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32652#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,528 INFO L273 TraceCheckUtils]: 82: Hoare triple {32659#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {32659#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,529 INFO L273 TraceCheckUtils]: 81: Hoare triple {32666#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32659#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,530 INFO L273 TraceCheckUtils]: 80: Hoare triple {32666#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {32666#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,531 INFO L273 TraceCheckUtils]: 79: Hoare triple {32673#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {32666#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,532 INFO L273 TraceCheckUtils]: 78: Hoare triple {32673#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {32673#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 18:02:02,533 INFO L273 TraceCheckUtils]: 77: Hoare triple {32680#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32673#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 18:02:02,533 INFO L273 TraceCheckUtils]: 76: Hoare triple {32680#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {32680#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,534 INFO L273 TraceCheckUtils]: 75: Hoare triple {32687#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32680#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,535 INFO L273 TraceCheckUtils]: 74: Hoare triple {32687#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {32687#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,536 INFO L273 TraceCheckUtils]: 73: Hoare triple {32694#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {32687#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,536 INFO L273 TraceCheckUtils]: 72: Hoare triple {32694#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {32694#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 18:02:02,537 INFO L273 TraceCheckUtils]: 71: Hoare triple {32701#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32694#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 18:02:02,538 INFO L273 TraceCheckUtils]: 70: Hoare triple {32701#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {32701#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,539 INFO L273 TraceCheckUtils]: 69: Hoare triple {32708#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {32701#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,539 INFO L273 TraceCheckUtils]: 68: Hoare triple {32708#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {32708#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 18:02:02,540 INFO L273 TraceCheckUtils]: 67: Hoare triple {32715#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {32708#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 18:02:02,541 INFO L273 TraceCheckUtils]: 66: Hoare triple {32715#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {32715#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 18:02:02,542 INFO L273 TraceCheckUtils]: 65: Hoare triple {32722#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {32715#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 18:02:02,542 INFO L273 TraceCheckUtils]: 64: Hoare triple {32722#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {32722#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 18:02:02,543 INFO L273 TraceCheckUtils]: 63: Hoare triple {32729#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {32722#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 18:02:02,544 INFO L273 TraceCheckUtils]: 62: Hoare triple {32729#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {32729#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 18:02:02,545 INFO L273 TraceCheckUtils]: 61: Hoare triple {32736#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {32729#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 18:02:02,545 INFO L273 TraceCheckUtils]: 60: Hoare triple {32736#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {32736#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 18:02:02,547 INFO L273 TraceCheckUtils]: 59: Hoare triple {32743#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {32736#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 18:02:02,547 INFO L273 TraceCheckUtils]: 58: Hoare triple {32743#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {32743#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 18:02:02,548 INFO L273 TraceCheckUtils]: 57: Hoare triple {32750#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32743#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 18:02:02,549 INFO L273 TraceCheckUtils]: 56: Hoare triple {32750#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {32750#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,550 INFO L273 TraceCheckUtils]: 55: Hoare triple {32757#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32750#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,550 INFO L273 TraceCheckUtils]: 54: Hoare triple {32757#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {32757#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,551 INFO L273 TraceCheckUtils]: 53: Hoare triple {32764#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32757#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,552 INFO L273 TraceCheckUtils]: 52: Hoare triple {32764#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {32764#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,553 INFO L273 TraceCheckUtils]: 51: Hoare triple {32771#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {32764#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,553 INFO L273 TraceCheckUtils]: 50: Hoare triple {32771#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {32771#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 18:02:02,554 INFO L273 TraceCheckUtils]: 49: Hoare triple {32778#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32771#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 18:02:02,555 INFO L273 TraceCheckUtils]: 48: Hoare triple {32778#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {32778#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,556 INFO L273 TraceCheckUtils]: 47: Hoare triple {32785#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {32778#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,556 INFO L273 TraceCheckUtils]: 46: Hoare triple {32785#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {32785#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 18:02:02,557 INFO L273 TraceCheckUtils]: 45: Hoare triple {32792#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {32785#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 18:02:02,558 INFO L273 TraceCheckUtils]: 44: Hoare triple {32792#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {32792#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 18:02:02,559 INFO L273 TraceCheckUtils]: 43: Hoare triple {32799#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {32792#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 18:02:02,560 INFO L273 TraceCheckUtils]: 42: Hoare triple {32799#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {32799#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 18:02:02,561 INFO L273 TraceCheckUtils]: 41: Hoare triple {32806#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32799#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 18:02:02,561 INFO L273 TraceCheckUtils]: 40: Hoare triple {32806#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {32806#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,562 INFO L273 TraceCheckUtils]: 39: Hoare triple {32813#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32806#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,563 INFO L273 TraceCheckUtils]: 38: Hoare triple {32813#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {32813#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,564 INFO L273 TraceCheckUtils]: 37: Hoare triple {32820#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {32813#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,564 INFO L273 TraceCheckUtils]: 36: Hoare triple {32820#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {32820#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 18:02:02,565 INFO L273 TraceCheckUtils]: 35: Hoare triple {32827#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32820#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 18:02:02,566 INFO L273 TraceCheckUtils]: 34: Hoare triple {32827#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {32827#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,567 INFO L273 TraceCheckUtils]: 33: Hoare triple {32834#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {32827#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,567 INFO L273 TraceCheckUtils]: 32: Hoare triple {32834#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {32834#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 18:02:02,568 INFO L273 TraceCheckUtils]: 31: Hoare triple {32841#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {32834#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 18:02:02,569 INFO L273 TraceCheckUtils]: 30: Hoare triple {32841#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {32841#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 18:02:02,570 INFO L273 TraceCheckUtils]: 29: Hoare triple {32848#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {32841#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 18:02:02,570 INFO L273 TraceCheckUtils]: 28: Hoare triple {32848#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {32848#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 18:02:02,571 INFO L273 TraceCheckUtils]: 27: Hoare triple {32855#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {32848#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 18:02:02,572 INFO L273 TraceCheckUtils]: 26: Hoare triple {32855#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {32855#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 18:02:02,573 INFO L273 TraceCheckUtils]: 25: Hoare triple {32862#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {32855#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 18:02:02,574 INFO L273 TraceCheckUtils]: 24: Hoare triple {32862#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {32862#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 18:02:02,575 INFO L273 TraceCheckUtils]: 23: Hoare triple {32869#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {32862#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 18:02:02,575 INFO L273 TraceCheckUtils]: 22: Hoare triple {32869#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {32869#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 18:02:02,576 INFO L273 TraceCheckUtils]: 21: Hoare triple {32876#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {32869#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 18:02:02,577 INFO L273 TraceCheckUtils]: 20: Hoare triple {32876#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {32876#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 18:02:02,578 INFO L273 TraceCheckUtils]: 19: Hoare triple {32883#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {32876#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 18:02:02,578 INFO L273 TraceCheckUtils]: 18: Hoare triple {32883#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {32883#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 18:02:02,579 INFO L273 TraceCheckUtils]: 17: Hoare triple {32890#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {32883#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 18:02:02,580 INFO L273 TraceCheckUtils]: 16: Hoare triple {32890#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {32890#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 18:02:02,581 INFO L273 TraceCheckUtils]: 15: Hoare triple {32897#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32890#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 18:02:02,581 INFO L273 TraceCheckUtils]: 14: Hoare triple {32897#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {32897#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,582 INFO L273 TraceCheckUtils]: 13: Hoare triple {32904#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {32897#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,583 INFO L273 TraceCheckUtils]: 12: Hoare triple {32904#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {32904#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,584 INFO L273 TraceCheckUtils]: 11: Hoare triple {32911#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {32904#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2018-12-18 18:02:02,584 INFO L273 TraceCheckUtils]: 10: Hoare triple {32911#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {32911#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2018-12-18 18:02:02,585 INFO L273 TraceCheckUtils]: 9: Hoare triple {32918#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {32911#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2018-12-18 18:02:02,586 INFO L273 TraceCheckUtils]: 8: Hoare triple {32918#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {32918#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2018-12-18 18:02:02,587 INFO L273 TraceCheckUtils]: 7: Hoare triple {32925#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {32918#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2018-12-18 18:02:02,588 INFO L273 TraceCheckUtils]: 6: Hoare triple {32925#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume i <= n * 4; {32925#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2018-12-18 18:02:02,589 INFO L273 TraceCheckUtils]: 5: Hoare triple {32932#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume a[i] != 23;i := i + 4; {32925#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2018-12-18 18:02:02,589 INFO L273 TraceCheckUtils]: 4: Hoare triple {32932#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume i <= n * 4; {32932#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2018-12-18 18:02:02,590 INFO L273 TraceCheckUtils]: 3: Hoare triple {32939#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume a[i] != 23;i := i + 4; {32932#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2018-12-18 18:02:02,591 INFO L273 TraceCheckUtils]: 2: Hoare triple {32939#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume i <= n * 4; {32939#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2018-12-18 18:02:02,592 INFO L273 TraceCheckUtils]: 1: Hoare triple {32946#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume a[i] != 23;i := i + 4; {32939#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2018-12-18 18:02:02,593 INFO L273 TraceCheckUtils]: 0: Hoare triple {32190#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {32946#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2018-12-18 18:02:02,631 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:02:02,649 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 18:02:02,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52, 52] total 155 [2018-12-18 18:02:02,649 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 18:02:02,650 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 101 [2018-12-18 18:02:02,650 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 18:02:02,650 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 105 states. [2018-12-18 18:02:02,901 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 201 edges. 201 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 18:02:02,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 105 states [2018-12-18 18:02:02,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2018-12-18 18:02:02,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2972, Invalid=21520, Unknown=0, NotChecked=0, Total=24492 [2018-12-18 18:02:02,903 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand 105 states. [2018-12-18 18:02:23,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:02:23,347 INFO L93 Difference]: Finished difference Result 106 states and 106 transitions. [2018-12-18 18:02:23,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-12-18 18:02:23,348 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 101 [2018-12-18 18:02:23,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 18:02:23,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-12-18 18:02:23,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 106 transitions. [2018-12-18 18:02:23,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-12-18 18:02:23,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 106 transitions. [2018-12-18 18:02:23,350 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 54 states and 106 transitions. [2018-12-18 18:02:23,997 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 106 edges. 106 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 18:02:23,998 INFO L225 Difference]: With dead ends: 106 [2018-12-18 18:02:23,998 INFO L226 Difference]: Without dead ends: 105 [2018-12-18 18:02:23,999 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5508 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=2972, Invalid=21520, Unknown=0, NotChecked=0, Total=24492 [2018-12-18 18:02:23,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-12-18 18:02:24,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2018-12-18 18:02:24,488 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 18:02:24,488 INFO L82 GeneralOperation]: Start isEquivalent. First operand 105 states. Second operand 104 states. [2018-12-18 18:02:24,488 INFO L74 IsIncluded]: Start isIncluded. First operand 105 states. Second operand 104 states. [2018-12-18 18:02:24,488 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 104 states. [2018-12-18 18:02:24,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:02:24,490 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2018-12-18 18:02:24,490 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 105 transitions. [2018-12-18 18:02:24,490 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 18:02:24,490 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 18:02:24,490 INFO L74 IsIncluded]: Start isIncluded. First operand 104 states. Second operand 105 states. [2018-12-18 18:02:24,490 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 105 states. [2018-12-18 18:02:24,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:02:24,491 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2018-12-18 18:02:24,491 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 105 transitions. [2018-12-18 18:02:24,491 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 18:02:24,491 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 18:02:24,492 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 18:02:24,492 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 18:02:24,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-12-18 18:02:24,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 104 transitions. [2018-12-18 18:02:24,493 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 104 transitions. Word has length 101 [2018-12-18 18:02:24,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 18:02:24,493 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 104 transitions. [2018-12-18 18:02:24,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has 105 states. [2018-12-18 18:02:24,493 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 104 transitions. [2018-12-18 18:02:24,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-12-18 18:02:24,494 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 18:02:24,494 INFO L402 BasicCegarLoop]: trace histogram [51, 50, 1, 1] [2018-12-18 18:02:24,494 INFO L423 AbstractCegarLoop]: === Iteration 51 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 18:02:24,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 18:02:24,495 INFO L82 PathProgramCache]: Analyzing trace with hash -315445948, now seen corresponding path program 50 times [2018-12-18 18:02:24,495 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 18:02:24,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 18:02:24,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 18:02:24,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 18:02:24,495 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 18:02:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 18:02:27,598 INFO L273 TraceCheckUtils]: 0: Hoare triple {33472#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {33474#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 0)))} is VALID [2018-12-18 18:02:27,599 INFO L273 TraceCheckUtils]: 1: Hoare triple {33474#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {33475#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 50) (<= main_i 4)))} is VALID [2018-12-18 18:02:27,600 INFO L273 TraceCheckUtils]: 2: Hoare triple {33475#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 50) (<= main_i 4)))} assume i <= n * 4; {33475#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 50) (<= main_i 4)))} is VALID [2018-12-18 18:02:27,601 INFO L273 TraceCheckUtils]: 3: Hoare triple {33475#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 50) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {33476#(and (or (< 50 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 8)))} is VALID [2018-12-18 18:02:27,601 INFO L273 TraceCheckUtils]: 4: Hoare triple {33476#(and (or (< 50 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 8)))} assume i <= n * 4; {33476#(and (or (< 50 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 8)))} is VALID [2018-12-18 18:02:27,602 INFO L273 TraceCheckUtils]: 5: Hoare triple {33476#(and (or (< 50 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 8)))} assume a[i] != 23;i := i + 4; {33477#(and (or (<= main_n 50) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,603 INFO L273 TraceCheckUtils]: 6: Hoare triple {33477#(and (or (<= main_n 50) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33477#(and (or (<= main_n 50) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,604 INFO L273 TraceCheckUtils]: 7: Hoare triple {33477#(and (or (<= main_n 50) (<= main_i 12)) (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33478#(and (or (<= main_n 50) (<= main_i 16)) (or (< 50 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:02:27,605 INFO L273 TraceCheckUtils]: 8: Hoare triple {33478#(and (or (<= main_n 50) (<= main_i 16)) (or (< 50 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33478#(and (or (<= main_n 50) (<= main_i 16)) (or (< 50 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:02:27,606 INFO L273 TraceCheckUtils]: 9: Hoare triple {33478#(and (or (<= main_n 50) (<= main_i 16)) (or (< 50 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33479#(and (or (<= main_n 50) (<= main_i 20)) (or (< 50 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:02:27,607 INFO L273 TraceCheckUtils]: 10: Hoare triple {33479#(and (or (<= main_n 50) (<= main_i 20)) (or (< 50 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33479#(and (or (<= main_n 50) (<= main_i 20)) (or (< 50 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:02:27,608 INFO L273 TraceCheckUtils]: 11: Hoare triple {33479#(and (or (<= main_n 50) (<= main_i 20)) (or (< 50 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33480#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 24)))} is VALID [2018-12-18 18:02:27,608 INFO L273 TraceCheckUtils]: 12: Hoare triple {33480#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 24)))} assume i <= n * 4; {33480#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 24)))} is VALID [2018-12-18 18:02:27,609 INFO L273 TraceCheckUtils]: 13: Hoare triple {33480#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {33481#(and (or (<= main_n 50) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,610 INFO L273 TraceCheckUtils]: 14: Hoare triple {33481#(and (or (<= main_n 50) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33481#(and (or (<= main_n 50) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,611 INFO L273 TraceCheckUtils]: 15: Hoare triple {33481#(and (or (<= main_n 50) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33482#(and (or (<= main_i 32) (<= main_n 50)) (or (< 50 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:02:27,612 INFO L273 TraceCheckUtils]: 16: Hoare triple {33482#(and (or (<= main_i 32) (<= main_n 50)) (or (< 50 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33482#(and (or (<= main_i 32) (<= main_n 50)) (or (< 50 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:02:27,613 INFO L273 TraceCheckUtils]: 17: Hoare triple {33482#(and (or (<= main_i 32) (<= main_n 50)) (or (< 50 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33483#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 50 main_n)) (or (<= main_i 36) (<= main_n 50)))} is VALID [2018-12-18 18:02:27,614 INFO L273 TraceCheckUtils]: 18: Hoare triple {33483#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 50 main_n)) (or (<= main_i 36) (<= main_n 50)))} assume i <= n * 4; {33483#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 50 main_n)) (or (<= main_i 36) (<= main_n 50)))} is VALID [2018-12-18 18:02:27,615 INFO L273 TraceCheckUtils]: 19: Hoare triple {33483#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 50 main_n)) (or (<= main_i 36) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33484#(and (or (<= main_i 40) (<= main_n 50)) (or (< 50 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:02:27,616 INFO L273 TraceCheckUtils]: 20: Hoare triple {33484#(and (or (<= main_i 40) (<= main_n 50)) (or (< 50 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33484#(and (or (<= main_i 40) (<= main_n 50)) (or (< 50 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:02:27,617 INFO L273 TraceCheckUtils]: 21: Hoare triple {33484#(and (or (<= main_i 40) (<= main_n 50)) (or (< 50 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33485#(and (or (<= main_n 50) (<= main_i 44)) (or (< 50 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:02:27,617 INFO L273 TraceCheckUtils]: 22: Hoare triple {33485#(and (or (<= main_n 50) (<= main_i 44)) (or (< 50 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33485#(and (or (<= main_n 50) (<= main_i 44)) (or (< 50 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:02:27,618 INFO L273 TraceCheckUtils]: 23: Hoare triple {33485#(and (or (<= main_n 50) (<= main_i 44)) (or (< 50 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33486#(and (or (<= main_n 50) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,619 INFO L273 TraceCheckUtils]: 24: Hoare triple {33486#(and (or (<= main_n 50) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33486#(and (or (<= main_n 50) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,620 INFO L273 TraceCheckUtils]: 25: Hoare triple {33486#(and (or (<= main_n 50) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33487#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 52) (<= main_n 50)))} is VALID [2018-12-18 18:02:27,621 INFO L273 TraceCheckUtils]: 26: Hoare triple {33487#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 52) (<= main_n 50)))} assume i <= n * 4; {33487#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 52) (<= main_n 50)))} is VALID [2018-12-18 18:02:27,622 INFO L273 TraceCheckUtils]: 27: Hoare triple {33487#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 52) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33488#(and (or (< 50 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 56)))} is VALID [2018-12-18 18:02:27,623 INFO L273 TraceCheckUtils]: 28: Hoare triple {33488#(and (or (< 50 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 56)))} assume i <= n * 4; {33488#(and (or (< 50 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 56)))} is VALID [2018-12-18 18:02:27,624 INFO L273 TraceCheckUtils]: 29: Hoare triple {33488#(and (or (< 50 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 56)))} assume a[i] != 23;i := i + 4; {33489#(and (or (< 50 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 60)))} is VALID [2018-12-18 18:02:27,624 INFO L273 TraceCheckUtils]: 30: Hoare triple {33489#(and (or (< 50 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 60)))} assume i <= n * 4; {33489#(and (or (< 50 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 60)))} is VALID [2018-12-18 18:02:27,625 INFO L273 TraceCheckUtils]: 31: Hoare triple {33489#(and (or (< 50 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 60)))} assume a[i] != 23;i := i + 4; {33490#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 64)))} is VALID [2018-12-18 18:02:27,626 INFO L273 TraceCheckUtils]: 32: Hoare triple {33490#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 64)))} assume i <= n * 4; {33490#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 64)))} is VALID [2018-12-18 18:02:27,627 INFO L273 TraceCheckUtils]: 33: Hoare triple {33490#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 64)))} assume a[i] != 23;i := i + 4; {33491#(and (or (<= main_n 50) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,628 INFO L273 TraceCheckUtils]: 34: Hoare triple {33491#(and (or (<= main_n 50) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33491#(and (or (<= main_n 50) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,629 INFO L273 TraceCheckUtils]: 35: Hoare triple {33491#(and (or (<= main_n 50) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33492#(and (or (<= main_n 50) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,630 INFO L273 TraceCheckUtils]: 36: Hoare triple {33492#(and (or (<= main_n 50) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33492#(and (or (<= main_n 50) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,631 INFO L273 TraceCheckUtils]: 37: Hoare triple {33492#(and (or (<= main_n 50) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33493#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 76) (<= main_n 50)))} is VALID [2018-12-18 18:02:27,631 INFO L273 TraceCheckUtils]: 38: Hoare triple {33493#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 76) (<= main_n 50)))} assume i <= n * 4; {33493#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 76) (<= main_n 50)))} is VALID [2018-12-18 18:02:27,632 INFO L273 TraceCheckUtils]: 39: Hoare triple {33493#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 76) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33494#(and (or (<= main_n 50) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,633 INFO L273 TraceCheckUtils]: 40: Hoare triple {33494#(and (or (<= main_n 50) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33494#(and (or (<= main_n 50) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,634 INFO L273 TraceCheckUtils]: 41: Hoare triple {33494#(and (or (<= main_n 50) (<= main_i 80)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33495#(and (or (<= main_n 50) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,635 INFO L273 TraceCheckUtils]: 42: Hoare triple {33495#(and (or (<= main_n 50) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 50 main_n)))} assume i <= n * 4; {33495#(and (or (<= main_n 50) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,636 INFO L273 TraceCheckUtils]: 43: Hoare triple {33495#(and (or (<= main_n 50) (<= main_i 84)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33496#(and (or (<= main_i 88) (<= main_n 50)) (or (< 50 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:02:27,637 INFO L273 TraceCheckUtils]: 44: Hoare triple {33496#(and (or (<= main_i 88) (<= main_n 50)) (or (< 50 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33496#(and (or (<= main_i 88) (<= main_n 50)) (or (< 50 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:02:27,638 INFO L273 TraceCheckUtils]: 45: Hoare triple {33496#(and (or (<= main_i 88) (<= main_n 50)) (or (< 50 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33497#(and (or (<= main_i 92) (<= main_n 50)) (or (< 50 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:02:27,639 INFO L273 TraceCheckUtils]: 46: Hoare triple {33497#(and (or (<= main_i 92) (<= main_n 50)) (or (< 50 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33497#(and (or (<= main_i 92) (<= main_n 50)) (or (< 50 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:02:27,640 INFO L273 TraceCheckUtils]: 47: Hoare triple {33497#(and (or (<= main_i 92) (<= main_n 50)) (or (< 50 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33498#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 96) (<= main_n 50)))} is VALID [2018-12-18 18:02:27,640 INFO L273 TraceCheckUtils]: 48: Hoare triple {33498#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 96) (<= main_n 50)))} assume i <= n * 4; {33498#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 96) (<= main_n 50)))} is VALID [2018-12-18 18:02:27,641 INFO L273 TraceCheckUtils]: 49: Hoare triple {33498#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 96) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33499#(and (or (<= main_i 100) (<= main_n 50)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,642 INFO L273 TraceCheckUtils]: 50: Hoare triple {33499#(and (or (<= main_i 100) (<= main_n 50)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33499#(and (or (<= main_i 100) (<= main_n 50)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,643 INFO L273 TraceCheckUtils]: 51: Hoare triple {33499#(and (or (<= main_i 100) (<= main_n 50)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33500#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 104) (<= main_n 50)))} is VALID [2018-12-18 18:02:27,644 INFO L273 TraceCheckUtils]: 52: Hoare triple {33500#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 104) (<= main_n 50)))} assume i <= n * 4; {33500#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 104) (<= main_n 50)))} is VALID [2018-12-18 18:02:27,645 INFO L273 TraceCheckUtils]: 53: Hoare triple {33500#(and (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_i 104) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33501#(and (or (<= main_n 50) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,646 INFO L273 TraceCheckUtils]: 54: Hoare triple {33501#(and (or (<= main_n 50) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33501#(and (or (<= main_n 50) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,647 INFO L273 TraceCheckUtils]: 55: Hoare triple {33501#(and (or (<= main_n 50) (<= main_i 108)) (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33502#(and (or (<= main_n 50) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,647 INFO L273 TraceCheckUtils]: 56: Hoare triple {33502#(and (or (<= main_n 50) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 50 main_n)))} assume i <= n * 4; {33502#(and (or (<= main_n 50) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,648 INFO L273 TraceCheckUtils]: 57: Hoare triple {33502#(and (or (<= main_n 50) (<= main_i 112)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33503#(and (or (< 50 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 116)))} is VALID [2018-12-18 18:02:27,649 INFO L273 TraceCheckUtils]: 58: Hoare triple {33503#(and (or (< 50 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 116)))} assume i <= n * 4; {33503#(and (or (< 50 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 116)))} is VALID [2018-12-18 18:02:27,650 INFO L273 TraceCheckUtils]: 59: Hoare triple {33503#(and (or (< 50 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 116)))} assume a[i] != 23;i := i + 4; {33504#(and (or (<= main_n 50) (<= main_i 120)) (or (< 50 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:02:27,651 INFO L273 TraceCheckUtils]: 60: Hoare triple {33504#(and (or (<= main_n 50) (<= main_i 120)) (or (< 50 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33504#(and (or (<= main_n 50) (<= main_i 120)) (or (< 50 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:02:27,652 INFO L273 TraceCheckUtils]: 61: Hoare triple {33504#(and (or (<= main_n 50) (<= main_i 120)) (or (< 50 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33505#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 124)))} is VALID [2018-12-18 18:02:27,653 INFO L273 TraceCheckUtils]: 62: Hoare triple {33505#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 124)))} assume i <= n * 4; {33505#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 124)))} is VALID [2018-12-18 18:02:27,654 INFO L273 TraceCheckUtils]: 63: Hoare triple {33505#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 124)))} assume a[i] != 23;i := i + 4; {33506#(and (or (<= main_n 50) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,654 INFO L273 TraceCheckUtils]: 64: Hoare triple {33506#(and (or (<= main_n 50) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 50 main_n)))} assume i <= n * 4; {33506#(and (or (<= main_n 50) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,655 INFO L273 TraceCheckUtils]: 65: Hoare triple {33506#(and (or (<= main_n 50) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33507#(and (or (< 50 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 50)))} is VALID [2018-12-18 18:02:27,656 INFO L273 TraceCheckUtils]: 66: Hoare triple {33507#(and (or (< 50 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 50)))} assume i <= n * 4; {33507#(and (or (< 50 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 50)))} is VALID [2018-12-18 18:02:27,657 INFO L273 TraceCheckUtils]: 67: Hoare triple {33507#(and (or (< 50 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33508#(and (or (<= main_i 136) (<= main_n 50)) (or (< 50 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:02:27,658 INFO L273 TraceCheckUtils]: 68: Hoare triple {33508#(and (or (<= main_i 136) (<= main_n 50)) (or (< 50 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33508#(and (or (<= main_i 136) (<= main_n 50)) (or (< 50 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:02:27,659 INFO L273 TraceCheckUtils]: 69: Hoare triple {33508#(and (or (<= main_i 136) (<= main_n 50)) (or (< 50 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33509#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 50) (<= main_i 140)))} is VALID [2018-12-18 18:02:27,660 INFO L273 TraceCheckUtils]: 70: Hoare triple {33509#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 50) (<= main_i 140)))} assume i <= n * 4; {33509#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 50) (<= main_i 140)))} is VALID [2018-12-18 18:02:27,661 INFO L273 TraceCheckUtils]: 71: Hoare triple {33509#(and (or (< 50 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 50) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {33510#(and (or (< 50 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 144)))} is VALID [2018-12-18 18:02:27,662 INFO L273 TraceCheckUtils]: 72: Hoare triple {33510#(and (or (< 50 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 144)))} assume i <= n * 4; {33510#(and (or (< 50 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 144)))} is VALID [2018-12-18 18:02:27,663 INFO L273 TraceCheckUtils]: 73: Hoare triple {33510#(and (or (< 50 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 144)))} assume a[i] != 23;i := i + 4; {33511#(and (or (< 50 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 148)))} is VALID [2018-12-18 18:02:27,663 INFO L273 TraceCheckUtils]: 74: Hoare triple {33511#(and (or (< 50 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 148)))} assume i <= n * 4; {33511#(and (or (< 50 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 148)))} is VALID [2018-12-18 18:02:27,664 INFO L273 TraceCheckUtils]: 75: Hoare triple {33511#(and (or (< 50 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 148)))} assume a[i] != 23;i := i + 4; {33512#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 152)))} is VALID [2018-12-18 18:02:27,665 INFO L273 TraceCheckUtils]: 76: Hoare triple {33512#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 152)))} assume i <= n * 4; {33512#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 152)))} is VALID [2018-12-18 18:02:27,666 INFO L273 TraceCheckUtils]: 77: Hoare triple {33512#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 152)))} assume a[i] != 23;i := i + 4; {33513#(and (or (< 50 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 50)))} is VALID [2018-12-18 18:02:27,667 INFO L273 TraceCheckUtils]: 78: Hoare triple {33513#(and (or (< 50 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 50)))} assume i <= n * 4; {33513#(and (or (< 50 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 50)))} is VALID [2018-12-18 18:02:27,668 INFO L273 TraceCheckUtils]: 79: Hoare triple {33513#(and (or (< 50 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33514#(and (or (<= main_n 50) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,669 INFO L273 TraceCheckUtils]: 80: Hoare triple {33514#(and (or (<= main_n 50) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33514#(and (or (<= main_n 50) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,670 INFO L273 TraceCheckUtils]: 81: Hoare triple {33514#(and (or (<= main_n 50) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33515#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 164)))} is VALID [2018-12-18 18:02:27,670 INFO L273 TraceCheckUtils]: 82: Hoare triple {33515#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 164)))} assume i <= n * 4; {33515#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 164)))} is VALID [2018-12-18 18:02:27,671 INFO L273 TraceCheckUtils]: 83: Hoare triple {33515#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)) (or (<= main_n 50) (<= main_i 164)))} assume a[i] != 23;i := i + 4; {33516#(and (or (< 50 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 168)))} is VALID [2018-12-18 18:02:27,672 INFO L273 TraceCheckUtils]: 84: Hoare triple {33516#(and (or (< 50 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 168)))} assume i <= n * 4; {33516#(and (or (< 50 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 168)))} is VALID [2018-12-18 18:02:27,673 INFO L273 TraceCheckUtils]: 85: Hoare triple {33516#(and (or (< 50 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 50) (<= main_i 168)))} assume a[i] != 23;i := i + 4; {33517#(and (or (<= main_n 50) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,674 INFO L273 TraceCheckUtils]: 86: Hoare triple {33517#(and (or (<= main_n 50) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33517#(and (or (<= main_n 50) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,675 INFO L273 TraceCheckUtils]: 87: Hoare triple {33517#(and (or (<= main_n 50) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33518#(and (or (< 50 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 50)))} is VALID [2018-12-18 18:02:27,676 INFO L273 TraceCheckUtils]: 88: Hoare triple {33518#(and (or (< 50 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 50)))} assume i <= n * 4; {33518#(and (or (< 50 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 50)))} is VALID [2018-12-18 18:02:27,677 INFO L273 TraceCheckUtils]: 89: Hoare triple {33518#(and (or (< 50 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33519#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 50 main_n)) (or (<= main_n 50) (<= main_i 180)))} is VALID [2018-12-18 18:02:27,677 INFO L273 TraceCheckUtils]: 90: Hoare triple {33519#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 50 main_n)) (or (<= main_n 50) (<= main_i 180)))} assume i <= n * 4; {33519#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 50 main_n)) (or (<= main_n 50) (<= main_i 180)))} is VALID [2018-12-18 18:02:27,678 INFO L273 TraceCheckUtils]: 91: Hoare triple {33519#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 50 main_n)) (or (<= main_n 50) (<= main_i 180)))} assume a[i] != 23;i := i + 4; {33520#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 50 main_n)) (or (<= main_i 184) (<= main_n 50)))} is VALID [2018-12-18 18:02:27,679 INFO L273 TraceCheckUtils]: 92: Hoare triple {33520#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 50 main_n)) (or (<= main_i 184) (<= main_n 50)))} assume i <= n * 4; {33520#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 50 main_n)) (or (<= main_i 184) (<= main_n 50)))} is VALID [2018-12-18 18:02:27,680 INFO L273 TraceCheckUtils]: 93: Hoare triple {33520#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 50 main_n)) (or (<= main_i 184) (<= main_n 50)))} assume a[i] != 23;i := i + 4; {33521#(and (or (<= main_i 188) (<= main_n 50)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,681 INFO L273 TraceCheckUtils]: 94: Hoare triple {33521#(and (or (<= main_i 188) (<= main_n 50)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 50 main_n)))} assume i <= n * 4; {33521#(and (or (<= main_i 188) (<= main_n 50)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,682 INFO L273 TraceCheckUtils]: 95: Hoare triple {33521#(and (or (<= main_i 188) (<= main_n 50)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33522#(and (or (<= main_n 50) (<= main_i 192)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,683 INFO L273 TraceCheckUtils]: 96: Hoare triple {33522#(and (or (<= main_n 50) (<= main_i 192)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume i <= n * 4; {33522#(and (or (<= main_n 50) (<= main_i 192)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,684 INFO L273 TraceCheckUtils]: 97: Hoare triple {33522#(and (or (<= main_n 50) (<= main_i 192)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 50 main_n)))} assume a[i] != 23;i := i + 4; {33523#(and (or (<= main_n 50) (<= main_i 196)) (or (< 50 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:02:27,684 INFO L273 TraceCheckUtils]: 98: Hoare triple {33523#(and (or (<= main_n 50) (<= main_i 196)) (or (< 50 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {33523#(and (or (<= main_n 50) (<= main_i 196)) (or (< 50 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:02:27,686 INFO L273 TraceCheckUtils]: 99: Hoare triple {33523#(and (or (<= main_n 50) (<= main_i 196)) (or (< 50 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {33524#(and (or (<= main_n 50) (<= main_i 200)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 50 main_n)))} is VALID [2018-12-18 18:02:27,687 INFO L273 TraceCheckUtils]: 100: Hoare triple {33524#(and (or (<= main_n 50) (<= main_i 200)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 50 main_n)))} assume i <= n * 4; {33525#(and (or (< 50 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 200))} is VALID [2018-12-18 18:02:27,687 INFO L273 TraceCheckUtils]: 101: Hoare triple {33525#(and (or (< 50 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 200))} assume a[i] != 23;i := i + 4; {33526#(and (< 50 main_n) (<= main_i 204))} is VALID [2018-12-18 18:02:27,688 INFO L273 TraceCheckUtils]: 102: Hoare triple {33526#(and (< 50 main_n) (<= main_i 204))} assume !(i <= n * 4); {33473#false} is VALID [2018-12-18 18:02:27,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2550 backedges. 0 proven. 2550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:02:27,736 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 18:02:27,736 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 18:02:27,736 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 18:02:27,736 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 18:02:27,737 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 18:02:27,737 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 18:02:27,745 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-18 18:02:27,745 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-18 18:02:27,832 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 51 check-sat command(s) [2018-12-18 18:02:27,832 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 18:02:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 18:02:27,853 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 18:02:27,871 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 18:02:27,872 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 18:02:27,877 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 18:02:27,877 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 18:02:27,879 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 18:02:27,880 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_54]. (and (= main_a (store v_main_a_54 (* 4 main_n) 23)) (= main_i 0)) [2018-12-18 18:02:27,880 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 18:02:31,909 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 18:02:31,911 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 18:02:31,917 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 18:02:31,917 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 18:02:31,919 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 18:02:31,920 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 200 .cse0) (not (= (select main_a 200) 23)) (<= main_i 204) (= 23 (select main_a .cse0)))) [2018-12-18 18:02:31,920 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 200 .cse0)) (<= 200 .cse0) (<= main_i 204))) [2018-12-18 18:02:31,988 INFO L273 TraceCheckUtils]: 0: Hoare triple {33472#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {33530#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:31,989 INFO L273 TraceCheckUtils]: 1: Hoare triple {33530#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33534#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 18:02:31,990 INFO L273 TraceCheckUtils]: 2: Hoare triple {33534#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {33534#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 18:02:31,991 INFO L273 TraceCheckUtils]: 3: Hoare triple {33534#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {33541#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:31,991 INFO L273 TraceCheckUtils]: 4: Hoare triple {33541#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33541#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:31,992 INFO L273 TraceCheckUtils]: 5: Hoare triple {33541#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33548#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 18:02:31,993 INFO L273 TraceCheckUtils]: 6: Hoare triple {33548#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {33548#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 18:02:31,993 INFO L273 TraceCheckUtils]: 7: Hoare triple {33548#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {33555#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:31,994 INFO L273 TraceCheckUtils]: 8: Hoare triple {33555#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33555#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:31,995 INFO L273 TraceCheckUtils]: 9: Hoare triple {33555#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33562#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:31,995 INFO L273 TraceCheckUtils]: 10: Hoare triple {33562#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33562#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:31,996 INFO L273 TraceCheckUtils]: 11: Hoare triple {33562#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33569#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:31,997 INFO L273 TraceCheckUtils]: 12: Hoare triple {33569#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33569#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:31,997 INFO L273 TraceCheckUtils]: 13: Hoare triple {33569#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33576#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:31,998 INFO L273 TraceCheckUtils]: 14: Hoare triple {33576#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33576#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:31,999 INFO L273 TraceCheckUtils]: 15: Hoare triple {33576#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33583#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:31,999 INFO L273 TraceCheckUtils]: 16: Hoare triple {33583#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33583#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,000 INFO L273 TraceCheckUtils]: 17: Hoare triple {33583#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33590#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,001 INFO L273 TraceCheckUtils]: 18: Hoare triple {33590#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33590#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,001 INFO L273 TraceCheckUtils]: 19: Hoare triple {33590#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33597#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,002 INFO L273 TraceCheckUtils]: 20: Hoare triple {33597#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33597#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,003 INFO L273 TraceCheckUtils]: 21: Hoare triple {33597#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33604#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,003 INFO L273 TraceCheckUtils]: 22: Hoare triple {33604#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33604#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,004 INFO L273 TraceCheckUtils]: 23: Hoare triple {33604#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33611#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,005 INFO L273 TraceCheckUtils]: 24: Hoare triple {33611#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33611#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,005 INFO L273 TraceCheckUtils]: 25: Hoare triple {33611#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33618#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,006 INFO L273 TraceCheckUtils]: 26: Hoare triple {33618#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33618#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,007 INFO L273 TraceCheckUtils]: 27: Hoare triple {33618#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33625#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,007 INFO L273 TraceCheckUtils]: 28: Hoare triple {33625#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33625#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,008 INFO L273 TraceCheckUtils]: 29: Hoare triple {33625#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33632#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,009 INFO L273 TraceCheckUtils]: 30: Hoare triple {33632#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33632#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,009 INFO L273 TraceCheckUtils]: 31: Hoare triple {33632#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33639#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,010 INFO L273 TraceCheckUtils]: 32: Hoare triple {33639#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33639#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,011 INFO L273 TraceCheckUtils]: 33: Hoare triple {33639#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33646#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,011 INFO L273 TraceCheckUtils]: 34: Hoare triple {33646#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33646#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,012 INFO L273 TraceCheckUtils]: 35: Hoare triple {33646#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33653#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,013 INFO L273 TraceCheckUtils]: 36: Hoare triple {33653#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33653#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,013 INFO L273 TraceCheckUtils]: 37: Hoare triple {33653#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33660#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,014 INFO L273 TraceCheckUtils]: 38: Hoare triple {33660#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33660#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,015 INFO L273 TraceCheckUtils]: 39: Hoare triple {33660#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33667#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 18:02:32,015 INFO L273 TraceCheckUtils]: 40: Hoare triple {33667#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {33667#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 18:02:32,016 INFO L273 TraceCheckUtils]: 41: Hoare triple {33667#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {33674#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,017 INFO L273 TraceCheckUtils]: 42: Hoare triple {33674#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33674#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,017 INFO L273 TraceCheckUtils]: 43: Hoare triple {33674#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33681#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,018 INFO L273 TraceCheckUtils]: 44: Hoare triple {33681#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33681#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,019 INFO L273 TraceCheckUtils]: 45: Hoare triple {33681#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33688#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,019 INFO L273 TraceCheckUtils]: 46: Hoare triple {33688#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33688#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,020 INFO L273 TraceCheckUtils]: 47: Hoare triple {33688#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33695#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,021 INFO L273 TraceCheckUtils]: 48: Hoare triple {33695#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33695#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,021 INFO L273 TraceCheckUtils]: 49: Hoare triple {33695#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33702#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,022 INFO L273 TraceCheckUtils]: 50: Hoare triple {33702#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33702#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,023 INFO L273 TraceCheckUtils]: 51: Hoare triple {33702#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33709#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,023 INFO L273 TraceCheckUtils]: 52: Hoare triple {33709#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33709#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,024 INFO L273 TraceCheckUtils]: 53: Hoare triple {33709#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33716#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,025 INFO L273 TraceCheckUtils]: 54: Hoare triple {33716#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33716#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,025 INFO L273 TraceCheckUtils]: 55: Hoare triple {33716#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33723#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,026 INFO L273 TraceCheckUtils]: 56: Hoare triple {33723#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33723#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,027 INFO L273 TraceCheckUtils]: 57: Hoare triple {33723#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33730#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,027 INFO L273 TraceCheckUtils]: 58: Hoare triple {33730#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33730#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,028 INFO L273 TraceCheckUtils]: 59: Hoare triple {33730#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33737#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,029 INFO L273 TraceCheckUtils]: 60: Hoare triple {33737#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33737#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,029 INFO L273 TraceCheckUtils]: 61: Hoare triple {33737#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33744#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,030 INFO L273 TraceCheckUtils]: 62: Hoare triple {33744#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33744#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,031 INFO L273 TraceCheckUtils]: 63: Hoare triple {33744#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33751#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,032 INFO L273 TraceCheckUtils]: 64: Hoare triple {33751#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33751#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,032 INFO L273 TraceCheckUtils]: 65: Hoare triple {33751#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33758#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,033 INFO L273 TraceCheckUtils]: 66: Hoare triple {33758#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33758#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,034 INFO L273 TraceCheckUtils]: 67: Hoare triple {33758#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33765#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,034 INFO L273 TraceCheckUtils]: 68: Hoare triple {33765#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33765#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,035 INFO L273 TraceCheckUtils]: 69: Hoare triple {33765#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33772#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 18:02:32,036 INFO L273 TraceCheckUtils]: 70: Hoare triple {33772#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {33772#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 18:02:32,037 INFO L273 TraceCheckUtils]: 71: Hoare triple {33772#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {33779#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,037 INFO L273 TraceCheckUtils]: 72: Hoare triple {33779#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33779#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,038 INFO L273 TraceCheckUtils]: 73: Hoare triple {33779#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33786#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,039 INFO L273 TraceCheckUtils]: 74: Hoare triple {33786#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33786#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,039 INFO L273 TraceCheckUtils]: 75: Hoare triple {33786#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33793#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,040 INFO L273 TraceCheckUtils]: 76: Hoare triple {33793#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33793#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,041 INFO L273 TraceCheckUtils]: 77: Hoare triple {33793#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33800#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,041 INFO L273 TraceCheckUtils]: 78: Hoare triple {33800#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33800#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,042 INFO L273 TraceCheckUtils]: 79: Hoare triple {33800#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33807#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,043 INFO L273 TraceCheckUtils]: 80: Hoare triple {33807#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33807#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,043 INFO L273 TraceCheckUtils]: 81: Hoare triple {33807#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33814#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 18:02:32,044 INFO L273 TraceCheckUtils]: 82: Hoare triple {33814#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {33814#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 18:02:32,045 INFO L273 TraceCheckUtils]: 83: Hoare triple {33814#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {33821#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,045 INFO L273 TraceCheckUtils]: 84: Hoare triple {33821#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33821#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,046 INFO L273 TraceCheckUtils]: 85: Hoare triple {33821#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33828#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,047 INFO L273 TraceCheckUtils]: 86: Hoare triple {33828#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33828#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,047 INFO L273 TraceCheckUtils]: 87: Hoare triple {33828#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33835#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,048 INFO L273 TraceCheckUtils]: 88: Hoare triple {33835#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33835#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,049 INFO L273 TraceCheckUtils]: 89: Hoare triple {33835#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33842#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,049 INFO L273 TraceCheckUtils]: 90: Hoare triple {33842#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33842#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,050 INFO L273 TraceCheckUtils]: 91: Hoare triple {33842#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33849#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,051 INFO L273 TraceCheckUtils]: 92: Hoare triple {33849#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33849#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,051 INFO L273 TraceCheckUtils]: 93: Hoare triple {33849#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33856#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,052 INFO L273 TraceCheckUtils]: 94: Hoare triple {33856#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33856#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,053 INFO L273 TraceCheckUtils]: 95: Hoare triple {33856#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33863#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,053 INFO L273 TraceCheckUtils]: 96: Hoare triple {33863#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33863#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,054 INFO L273 TraceCheckUtils]: 97: Hoare triple {33863#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33870#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,055 INFO L273 TraceCheckUtils]: 98: Hoare triple {33870#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33870#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,055 INFO L273 TraceCheckUtils]: 99: Hoare triple {33870#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33877#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,056 INFO L273 TraceCheckUtils]: 100: Hoare triple {33877#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {33881#(and (= main_i 200) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:02:32,057 INFO L273 TraceCheckUtils]: 101: Hoare triple {33881#(and (= main_i 200) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {33526#(and (< 50 main_n) (<= main_i 204))} is VALID [2018-12-18 18:02:32,057 INFO L273 TraceCheckUtils]: 102: Hoare triple {33526#(and (< 50 main_n) (<= main_i 204))} assume !(i <= n * 4); {33473#false} is VALID [2018-12-18 18:02:32,080 INFO L134 CoverageAnalysis]: Checked inductivity of 2550 backedges. 0 proven. 2550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:02:32,080 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 18:02:39,273 INFO L273 TraceCheckUtils]: 102: Hoare triple {33888#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {33473#false} is VALID [2018-12-18 18:02:39,274 INFO L273 TraceCheckUtils]: 101: Hoare triple {33892#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {33888#(<= main_i (* 4 main_n))} is VALID [2018-12-18 18:02:39,275 INFO L273 TraceCheckUtils]: 100: Hoare triple {33896#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {33892#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 18:02:39,276 INFO L273 TraceCheckUtils]: 99: Hoare triple {33900#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {33896#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 18:02:39,276 INFO L273 TraceCheckUtils]: 98: Hoare triple {33900#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {33900#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 18:02:39,277 INFO L273 TraceCheckUtils]: 97: Hoare triple {33907#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {33900#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 18:02:39,278 INFO L273 TraceCheckUtils]: 96: Hoare triple {33907#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {33907#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 18:02:39,279 INFO L273 TraceCheckUtils]: 95: Hoare triple {33914#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {33907#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 18:02:39,280 INFO L273 TraceCheckUtils]: 94: Hoare triple {33914#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {33914#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 18:02:39,281 INFO L273 TraceCheckUtils]: 93: Hoare triple {33921#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {33914#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 18:02:39,281 INFO L273 TraceCheckUtils]: 92: Hoare triple {33921#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {33921#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 18:02:39,282 INFO L273 TraceCheckUtils]: 91: Hoare triple {33928#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {33921#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 18:02:39,283 INFO L273 TraceCheckUtils]: 90: Hoare triple {33928#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {33928#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,284 INFO L273 TraceCheckUtils]: 89: Hoare triple {33935#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {33928#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,284 INFO L273 TraceCheckUtils]: 88: Hoare triple {33935#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {33935#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 18:02:39,285 INFO L273 TraceCheckUtils]: 87: Hoare triple {33942#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {33935#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 18:02:39,286 INFO L273 TraceCheckUtils]: 86: Hoare triple {33942#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {33942#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,287 INFO L273 TraceCheckUtils]: 85: Hoare triple {33949#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {33942#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,287 INFO L273 TraceCheckUtils]: 84: Hoare triple {33949#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {33949#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,288 INFO L273 TraceCheckUtils]: 83: Hoare triple {33956#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {33949#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,289 INFO L273 TraceCheckUtils]: 82: Hoare triple {33956#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {33956#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,290 INFO L273 TraceCheckUtils]: 81: Hoare triple {33963#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {33956#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,290 INFO L273 TraceCheckUtils]: 80: Hoare triple {33963#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {33963#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 18:02:39,292 INFO L273 TraceCheckUtils]: 79: Hoare triple {33970#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {33963#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 18:02:39,292 INFO L273 TraceCheckUtils]: 78: Hoare triple {33970#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {33970#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,293 INFO L273 TraceCheckUtils]: 77: Hoare triple {33977#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {33970#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,294 INFO L273 TraceCheckUtils]: 76: Hoare triple {33977#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {33977#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,295 INFO L273 TraceCheckUtils]: 75: Hoare triple {33984#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {33977#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,295 INFO L273 TraceCheckUtils]: 74: Hoare triple {33984#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {33984#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 18:02:39,296 INFO L273 TraceCheckUtils]: 73: Hoare triple {33991#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {33984#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 18:02:39,297 INFO L273 TraceCheckUtils]: 72: Hoare triple {33991#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {33991#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,298 INFO L273 TraceCheckUtils]: 71: Hoare triple {33998#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {33991#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,298 INFO L273 TraceCheckUtils]: 70: Hoare triple {33998#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {33998#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 18:02:39,299 INFO L273 TraceCheckUtils]: 69: Hoare triple {34005#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {33998#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 18:02:39,300 INFO L273 TraceCheckUtils]: 68: Hoare triple {34005#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {34005#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 18:02:39,301 INFO L273 TraceCheckUtils]: 67: Hoare triple {34012#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {34005#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 18:02:39,301 INFO L273 TraceCheckUtils]: 66: Hoare triple {34012#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {34012#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 18:02:39,302 INFO L273 TraceCheckUtils]: 65: Hoare triple {34019#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {34012#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 18:02:39,303 INFO L273 TraceCheckUtils]: 64: Hoare triple {34019#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {34019#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 18:02:39,304 INFO L273 TraceCheckUtils]: 63: Hoare triple {34026#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {34019#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 18:02:39,304 INFO L273 TraceCheckUtils]: 62: Hoare triple {34026#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {34026#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 18:02:39,305 INFO L273 TraceCheckUtils]: 61: Hoare triple {34033#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {34026#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 18:02:39,306 INFO L273 TraceCheckUtils]: 60: Hoare triple {34033#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {34033#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 18:02:39,307 INFO L273 TraceCheckUtils]: 59: Hoare triple {34040#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34033#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 18:02:39,308 INFO L273 TraceCheckUtils]: 58: Hoare triple {34040#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {34040#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,309 INFO L273 TraceCheckUtils]: 57: Hoare triple {34047#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34040#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,309 INFO L273 TraceCheckUtils]: 56: Hoare triple {34047#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {34047#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,310 INFO L273 TraceCheckUtils]: 55: Hoare triple {34054#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34047#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,311 INFO L273 TraceCheckUtils]: 54: Hoare triple {34054#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {34054#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,312 INFO L273 TraceCheckUtils]: 53: Hoare triple {34061#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {34054#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,312 INFO L273 TraceCheckUtils]: 52: Hoare triple {34061#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {34061#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 18:02:39,313 INFO L273 TraceCheckUtils]: 51: Hoare triple {34068#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34061#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 18:02:39,314 INFO L273 TraceCheckUtils]: 50: Hoare triple {34068#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {34068#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,315 INFO L273 TraceCheckUtils]: 49: Hoare triple {34075#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {34068#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,315 INFO L273 TraceCheckUtils]: 48: Hoare triple {34075#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {34075#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 18:02:39,316 INFO L273 TraceCheckUtils]: 47: Hoare triple {34082#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {34075#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 18:02:39,317 INFO L273 TraceCheckUtils]: 46: Hoare triple {34082#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {34082#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 18:02:39,318 INFO L273 TraceCheckUtils]: 45: Hoare triple {34089#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {34082#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 18:02:39,318 INFO L273 TraceCheckUtils]: 44: Hoare triple {34089#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {34089#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 18:02:39,320 INFO L273 TraceCheckUtils]: 43: Hoare triple {34096#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34089#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 18:02:39,320 INFO L273 TraceCheckUtils]: 42: Hoare triple {34096#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {34096#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,321 INFO L273 TraceCheckUtils]: 41: Hoare triple {34103#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34096#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,322 INFO L273 TraceCheckUtils]: 40: Hoare triple {34103#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {34103#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,323 INFO L273 TraceCheckUtils]: 39: Hoare triple {34110#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {34103#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,323 INFO L273 TraceCheckUtils]: 38: Hoare triple {34110#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {34110#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 18:02:39,324 INFO L273 TraceCheckUtils]: 37: Hoare triple {34117#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34110#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 18:02:39,325 INFO L273 TraceCheckUtils]: 36: Hoare triple {34117#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {34117#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,326 INFO L273 TraceCheckUtils]: 35: Hoare triple {34124#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {34117#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,326 INFO L273 TraceCheckUtils]: 34: Hoare triple {34124#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {34124#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 18:02:39,327 INFO L273 TraceCheckUtils]: 33: Hoare triple {34131#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {34124#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 18:02:39,328 INFO L273 TraceCheckUtils]: 32: Hoare triple {34131#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {34131#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 18:02:39,329 INFO L273 TraceCheckUtils]: 31: Hoare triple {34138#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {34131#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 18:02:39,329 INFO L273 TraceCheckUtils]: 30: Hoare triple {34138#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {34138#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 18:02:39,330 INFO L273 TraceCheckUtils]: 29: Hoare triple {34145#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {34138#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 18:02:39,331 INFO L273 TraceCheckUtils]: 28: Hoare triple {34145#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {34145#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 18:02:39,332 INFO L273 TraceCheckUtils]: 27: Hoare triple {34152#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {34145#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 18:02:39,333 INFO L273 TraceCheckUtils]: 26: Hoare triple {34152#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {34152#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 18:02:39,334 INFO L273 TraceCheckUtils]: 25: Hoare triple {34159#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {34152#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 18:02:39,334 INFO L273 TraceCheckUtils]: 24: Hoare triple {34159#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {34159#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 18:02:39,335 INFO L273 TraceCheckUtils]: 23: Hoare triple {34166#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {34159#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 18:02:39,336 INFO L273 TraceCheckUtils]: 22: Hoare triple {34166#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {34166#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 18:02:39,337 INFO L273 TraceCheckUtils]: 21: Hoare triple {34173#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {34166#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 18:02:39,337 INFO L273 TraceCheckUtils]: 20: Hoare triple {34173#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {34173#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 18:02:39,338 INFO L273 TraceCheckUtils]: 19: Hoare triple {34180#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {34173#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 18:02:39,339 INFO L273 TraceCheckUtils]: 18: Hoare triple {34180#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {34180#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 18:02:39,340 INFO L273 TraceCheckUtils]: 17: Hoare triple {34187#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34180#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 18:02:39,340 INFO L273 TraceCheckUtils]: 16: Hoare triple {34187#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {34187#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,341 INFO L273 TraceCheckUtils]: 15: Hoare triple {34194#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {34187#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,342 INFO L273 TraceCheckUtils]: 14: Hoare triple {34194#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {34194#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,343 INFO L273 TraceCheckUtils]: 13: Hoare triple {34201#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {34194#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2018-12-18 18:02:39,343 INFO L273 TraceCheckUtils]: 12: Hoare triple {34201#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {34201#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2018-12-18 18:02:39,344 INFO L273 TraceCheckUtils]: 11: Hoare triple {34208#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {34201#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2018-12-18 18:02:39,345 INFO L273 TraceCheckUtils]: 10: Hoare triple {34208#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {34208#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2018-12-18 18:02:39,346 INFO L273 TraceCheckUtils]: 9: Hoare triple {34215#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {34208#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2018-12-18 18:02:39,347 INFO L273 TraceCheckUtils]: 8: Hoare triple {34215#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume i <= n * 4; {34215#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2018-12-18 18:02:39,348 INFO L273 TraceCheckUtils]: 7: Hoare triple {34222#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume a[i] != 23;i := i + 4; {34215#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2018-12-18 18:02:39,348 INFO L273 TraceCheckUtils]: 6: Hoare triple {34222#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume i <= n * 4; {34222#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2018-12-18 18:02:39,349 INFO L273 TraceCheckUtils]: 5: Hoare triple {34229#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume a[i] != 23;i := i + 4; {34222#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2018-12-18 18:02:39,350 INFO L273 TraceCheckUtils]: 4: Hoare triple {34229#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume i <= n * 4; {34229#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2018-12-18 18:02:39,351 INFO L273 TraceCheckUtils]: 3: Hoare triple {34236#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume a[i] != 23;i := i + 4; {34229#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2018-12-18 18:02:39,351 INFO L273 TraceCheckUtils]: 2: Hoare triple {34236#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume i <= n * 4; {34236#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2018-12-18 18:02:39,352 INFO L273 TraceCheckUtils]: 1: Hoare triple {34243#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} assume a[i] != 23;i := i + 4; {34236#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2018-12-18 18:02:39,353 INFO L273 TraceCheckUtils]: 0: Hoare triple {33472#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {34243#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} is VALID [2018-12-18 18:02:39,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2550 backedges. 0 proven. 2550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:02:39,411 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 18:02:39,411 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 158 [2018-12-18 18:02:39,411 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 18:02:39,412 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 103 [2018-12-18 18:02:39,412 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 18:02:39,412 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 107 states. [2018-12-18 18:02:39,691 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 205 edges. 205 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 18:02:39,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 107 states [2018-12-18 18:02:39,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2018-12-18 18:02:39,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3082, Invalid=22358, Unknown=0, NotChecked=0, Total=25440 [2018-12-18 18:02:39,693 INFO L87 Difference]: Start difference. First operand 104 states and 104 transitions. Second operand 107 states. [2018-12-18 18:03:00,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:03:00,973 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2018-12-18 18:03:00,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2018-12-18 18:03:00,974 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 103 [2018-12-18 18:03:00,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 18:03:00,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-12-18 18:03:00,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 108 transitions. [2018-12-18 18:03:00,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-12-18 18:03:00,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 108 transitions. [2018-12-18 18:03:00,977 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 55 states and 108 transitions. [2018-12-18 18:03:01,103 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 108 edges. 108 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 18:03:01,105 INFO L225 Difference]: With dead ends: 108 [2018-12-18 18:03:01,105 INFO L226 Difference]: Without dead ends: 107 [2018-12-18 18:03:01,106 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5720 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=3082, Invalid=22358, Unknown=0, NotChecked=0, Total=25440 [2018-12-18 18:03:01,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-12-18 18:03:01,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2018-12-18 18:03:01,234 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 18:03:01,234 INFO L82 GeneralOperation]: Start isEquivalent. First operand 107 states. Second operand 106 states. [2018-12-18 18:03:01,235 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 106 states. [2018-12-18 18:03:01,235 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 106 states. [2018-12-18 18:03:01,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:03:01,236 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2018-12-18 18:03:01,237 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2018-12-18 18:03:01,237 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 18:03:01,237 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 18:03:01,237 INFO L74 IsIncluded]: Start isIncluded. First operand 106 states. Second operand 107 states. [2018-12-18 18:03:01,237 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 107 states. [2018-12-18 18:03:01,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:03:01,239 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2018-12-18 18:03:01,239 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2018-12-18 18:03:01,239 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 18:03:01,239 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 18:03:01,239 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 18:03:01,239 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 18:03:01,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-12-18 18:03:01,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2018-12-18 18:03:01,240 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 103 [2018-12-18 18:03:01,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 18:03:01,241 INFO L480 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2018-12-18 18:03:01,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has 107 states. [2018-12-18 18:03:01,241 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2018-12-18 18:03:01,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-12-18 18:03:01,242 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 18:03:01,242 INFO L402 BasicCegarLoop]: trace histogram [52, 51, 1, 1] [2018-12-18 18:03:01,242 INFO L423 AbstractCegarLoop]: === Iteration 52 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 18:03:01,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 18:03:01,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1799123078, now seen corresponding path program 51 times [2018-12-18 18:03:01,242 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 18:03:01,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 18:03:01,243 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 18:03:01,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 18:03:01,243 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 18:03:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 18:03:04,403 INFO L273 TraceCheckUtils]: 0: Hoare triple {34779#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {34781#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 0)))} is VALID [2018-12-18 18:03:04,404 INFO L273 TraceCheckUtils]: 1: Hoare triple {34781#(and (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 0)))} assume a[i] != 23;i := i + 4; {34782#(and (or (<= main_n 51) (<= main_i 4)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2018-12-18 18:03:04,405 INFO L273 TraceCheckUtils]: 2: Hoare triple {34782#(and (or (<= main_n 51) (<= main_i 4)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume i <= n * 4; {34782#(and (or (<= main_n 51) (<= main_i 4)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} is VALID [2018-12-18 18:03:04,406 INFO L273 TraceCheckUtils]: 3: Hoare triple {34782#(and (or (<= main_n 51) (<= main_i 4)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))))} assume a[i] != 23;i := i + 4; {34783#(and (or (<= main_i 8) (<= main_n 51)) (or (< 51 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,407 INFO L273 TraceCheckUtils]: 4: Hoare triple {34783#(and (or (<= main_i 8) (<= main_n 51)) (or (< 51 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34783#(and (or (<= main_i 8) (<= main_n 51)) (or (< 51 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,408 INFO L273 TraceCheckUtils]: 5: Hoare triple {34783#(and (or (<= main_i 8) (<= main_n 51)) (or (< 51 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34784#(and (or (< 51 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 12)))} is VALID [2018-12-18 18:03:04,408 INFO L273 TraceCheckUtils]: 6: Hoare triple {34784#(and (or (< 51 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 12)))} assume i <= n * 4; {34784#(and (or (< 51 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 12)))} is VALID [2018-12-18 18:03:04,409 INFO L273 TraceCheckUtils]: 7: Hoare triple {34784#(and (or (< 51 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {34785#(and (or (< 51 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 16)))} is VALID [2018-12-18 18:03:04,410 INFO L273 TraceCheckUtils]: 8: Hoare triple {34785#(and (or (< 51 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 16)))} assume i <= n * 4; {34785#(and (or (< 51 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 16)))} is VALID [2018-12-18 18:03:04,411 INFO L273 TraceCheckUtils]: 9: Hoare triple {34785#(and (or (< 51 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {34786#(and (or (<= main_n 51) (<= main_i 20)) (or (< 51 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,412 INFO L273 TraceCheckUtils]: 10: Hoare triple {34786#(and (or (<= main_n 51) (<= main_i 20)) (or (< 51 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34786#(and (or (<= main_n 51) (<= main_i 20)) (or (< 51 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,413 INFO L273 TraceCheckUtils]: 11: Hoare triple {34786#(and (or (<= main_n 51) (<= main_i 20)) (or (< 51 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34787#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 24)))} is VALID [2018-12-18 18:03:04,414 INFO L273 TraceCheckUtils]: 12: Hoare triple {34787#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 24)))} assume i <= n * 4; {34787#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 24)))} is VALID [2018-12-18 18:03:04,415 INFO L273 TraceCheckUtils]: 13: Hoare triple {34787#(and (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 24)))} assume a[i] != 23;i := i + 4; {34788#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 28)))} is VALID [2018-12-18 18:03:04,416 INFO L273 TraceCheckUtils]: 14: Hoare triple {34788#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 28)))} assume i <= n * 4; {34788#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 28)))} is VALID [2018-12-18 18:03:04,417 INFO L273 TraceCheckUtils]: 15: Hoare triple {34788#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {34789#(and (or (<= main_i 32) (<= main_n 51)) (or (< 51 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,418 INFO L273 TraceCheckUtils]: 16: Hoare triple {34789#(and (or (<= main_i 32) (<= main_n 51)) (or (< 51 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34789#(and (or (<= main_i 32) (<= main_n 51)) (or (< 51 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,419 INFO L273 TraceCheckUtils]: 17: Hoare triple {34789#(and (or (<= main_i 32) (<= main_n 51)) (or (< 51 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34790#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 51 main_n)) (or (<= main_i 36) (<= main_n 51)))} is VALID [2018-12-18 18:03:04,420 INFO L273 TraceCheckUtils]: 18: Hoare triple {34790#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 51 main_n)) (or (<= main_i 36) (<= main_n 51)))} assume i <= n * 4; {34790#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 51 main_n)) (or (<= main_i 36) (<= main_n 51)))} is VALID [2018-12-18 18:03:04,421 INFO L273 TraceCheckUtils]: 19: Hoare triple {34790#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 51 main_n)) (or (<= main_i 36) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34791#(and (or (<= main_i 40) (<= main_n 51)) (or (< 51 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,421 INFO L273 TraceCheckUtils]: 20: Hoare triple {34791#(and (or (<= main_i 40) (<= main_n 51)) (or (< 51 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34791#(and (or (<= main_i 40) (<= main_n 51)) (or (< 51 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,422 INFO L273 TraceCheckUtils]: 21: Hoare triple {34791#(and (or (<= main_i 40) (<= main_n 51)) (or (< 51 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34792#(and (or (<= main_n 51) (<= main_i 44)) (or (< 51 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,423 INFO L273 TraceCheckUtils]: 22: Hoare triple {34792#(and (or (<= main_n 51) (<= main_i 44)) (or (< 51 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34792#(and (or (<= main_n 51) (<= main_i 44)) (or (< 51 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,424 INFO L273 TraceCheckUtils]: 23: Hoare triple {34792#(and (or (<= main_n 51) (<= main_i 44)) (or (< 51 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34793#(and (or (<= main_n 51) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2018-12-18 18:03:04,425 INFO L273 TraceCheckUtils]: 24: Hoare triple {34793#(and (or (<= main_n 51) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34793#(and (or (<= main_n 51) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2018-12-18 18:03:04,426 INFO L273 TraceCheckUtils]: 25: Hoare triple {34793#(and (or (<= main_n 51) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34794#(and (or (<= main_i 52) (<= main_n 51)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2018-12-18 18:03:04,427 INFO L273 TraceCheckUtils]: 26: Hoare triple {34794#(and (or (<= main_i 52) (<= main_n 51)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34794#(and (or (<= main_i 52) (<= main_n 51)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2018-12-18 18:03:04,428 INFO L273 TraceCheckUtils]: 27: Hoare triple {34794#(and (or (<= main_i 52) (<= main_n 51)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34795#(and (or (<= main_n 51) (<= main_i 56)) (or (< 51 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,429 INFO L273 TraceCheckUtils]: 28: Hoare triple {34795#(and (or (<= main_n 51) (<= main_i 56)) (or (< 51 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34795#(and (or (<= main_n 51) (<= main_i 56)) (or (< 51 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,430 INFO L273 TraceCheckUtils]: 29: Hoare triple {34795#(and (or (<= main_n 51) (<= main_i 56)) (or (< 51 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34796#(and (or (< 51 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 60)))} is VALID [2018-12-18 18:03:04,431 INFO L273 TraceCheckUtils]: 30: Hoare triple {34796#(and (or (< 51 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 60)))} assume i <= n * 4; {34796#(and (or (< 51 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 60)))} is VALID [2018-12-18 18:03:04,432 INFO L273 TraceCheckUtils]: 31: Hoare triple {34796#(and (or (< 51 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 60)))} assume a[i] != 23;i := i + 4; {34797#(and (or (<= main_n 51) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2018-12-18 18:03:04,432 INFO L273 TraceCheckUtils]: 32: Hoare triple {34797#(and (or (<= main_n 51) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34797#(and (or (<= main_n 51) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2018-12-18 18:03:04,434 INFO L273 TraceCheckUtils]: 33: Hoare triple {34797#(and (or (<= main_n 51) (<= main_i 64)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34798#(and (or (<= main_n 51) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2018-12-18 18:03:04,434 INFO L273 TraceCheckUtils]: 34: Hoare triple {34798#(and (or (<= main_n 51) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34798#(and (or (<= main_n 51) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2018-12-18 18:03:04,435 INFO L273 TraceCheckUtils]: 35: Hoare triple {34798#(and (or (<= main_n 51) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34799#(and (or (<= main_n 51) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2018-12-18 18:03:04,436 INFO L273 TraceCheckUtils]: 36: Hoare triple {34799#(and (or (<= main_n 51) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34799#(and (or (<= main_n 51) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2018-12-18 18:03:04,437 INFO L273 TraceCheckUtils]: 37: Hoare triple {34799#(and (or (<= main_n 51) (<= main_i 72)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34800#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 76) (<= main_n 51)))} is VALID [2018-12-18 18:03:04,438 INFO L273 TraceCheckUtils]: 38: Hoare triple {34800#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 76) (<= main_n 51)))} assume i <= n * 4; {34800#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 76) (<= main_n 51)))} is VALID [2018-12-18 18:03:04,439 INFO L273 TraceCheckUtils]: 39: Hoare triple {34800#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 76) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34801#(and (or (< 51 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 80)))} is VALID [2018-12-18 18:03:04,440 INFO L273 TraceCheckUtils]: 40: Hoare triple {34801#(and (or (< 51 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 80)))} assume i <= n * 4; {34801#(and (or (< 51 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 80)))} is VALID [2018-12-18 18:03:04,441 INFO L273 TraceCheckUtils]: 41: Hoare triple {34801#(and (or (< 51 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {34802#(and (or (<= main_i 84) (<= main_n 51)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 51 main_n)))} is VALID [2018-12-18 18:03:04,442 INFO L273 TraceCheckUtils]: 42: Hoare triple {34802#(and (or (<= main_i 84) (<= main_n 51)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 51 main_n)))} assume i <= n * 4; {34802#(and (or (<= main_i 84) (<= main_n 51)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 51 main_n)))} is VALID [2018-12-18 18:03:04,443 INFO L273 TraceCheckUtils]: 43: Hoare triple {34802#(and (or (<= main_i 84) (<= main_n 51)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34803#(and (or (<= main_i 88) (<= main_n 51)) (or (< 51 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,444 INFO L273 TraceCheckUtils]: 44: Hoare triple {34803#(and (or (<= main_i 88) (<= main_n 51)) (or (< 51 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34803#(and (or (<= main_i 88) (<= main_n 51)) (or (< 51 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,445 INFO L273 TraceCheckUtils]: 45: Hoare triple {34803#(and (or (<= main_i 88) (<= main_n 51)) (or (< 51 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34804#(and (or (<= main_i 92) (<= main_n 51)) (or (< 51 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,446 INFO L273 TraceCheckUtils]: 46: Hoare triple {34804#(and (or (<= main_i 92) (<= main_n 51)) (or (< 51 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34804#(and (or (<= main_i 92) (<= main_n 51)) (or (< 51 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,447 INFO L273 TraceCheckUtils]: 47: Hoare triple {34804#(and (or (<= main_i 92) (<= main_n 51)) (or (< 51 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34805#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 96) (<= main_n 51)))} is VALID [2018-12-18 18:03:04,447 INFO L273 TraceCheckUtils]: 48: Hoare triple {34805#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 96) (<= main_n 51)))} assume i <= n * 4; {34805#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 96) (<= main_n 51)))} is VALID [2018-12-18 18:03:04,448 INFO L273 TraceCheckUtils]: 49: Hoare triple {34805#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_i 96) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34806#(and (or (<= main_i 100) (<= main_n 51)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2018-12-18 18:03:04,449 INFO L273 TraceCheckUtils]: 50: Hoare triple {34806#(and (or (<= main_i 100) (<= main_n 51)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34806#(and (or (<= main_i 100) (<= main_n 51)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2018-12-18 18:03:04,450 INFO L273 TraceCheckUtils]: 51: Hoare triple {34806#(and (or (<= main_i 100) (<= main_n 51)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34807#(and (or (<= main_i 104) (<= main_n 51)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2018-12-18 18:03:04,451 INFO L273 TraceCheckUtils]: 52: Hoare triple {34807#(and (or (<= main_i 104) (<= main_n 51)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34807#(and (or (<= main_i 104) (<= main_n 51)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2018-12-18 18:03:04,452 INFO L273 TraceCheckUtils]: 53: Hoare triple {34807#(and (or (<= main_i 104) (<= main_n 51)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34808#(and (or (<= main_n 51) (<= main_i 108)) (or (< 51 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,453 INFO L273 TraceCheckUtils]: 54: Hoare triple {34808#(and (or (<= main_n 51) (<= main_i 108)) (or (< 51 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34808#(and (or (<= main_n 51) (<= main_i 108)) (or (< 51 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,454 INFO L273 TraceCheckUtils]: 55: Hoare triple {34808#(and (or (<= main_n 51) (<= main_i 108)) (or (< 51 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34809#(and (or (<= main_n 51) (<= main_i 112)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2018-12-18 18:03:04,455 INFO L273 TraceCheckUtils]: 56: Hoare triple {34809#(and (or (<= main_n 51) (<= main_i 112)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume i <= n * 4; {34809#(and (or (<= main_n 51) (<= main_i 112)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} is VALID [2018-12-18 18:03:04,456 INFO L273 TraceCheckUtils]: 57: Hoare triple {34809#(and (or (<= main_n 51) (<= main_i 112)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))))} assume a[i] != 23;i := i + 4; {34810#(and (or (<= main_n 51) (<= main_i 116)) (or (< 51 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,457 INFO L273 TraceCheckUtils]: 58: Hoare triple {34810#(and (or (<= main_n 51) (<= main_i 116)) (or (< 51 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34810#(and (or (<= main_n 51) (<= main_i 116)) (or (< 51 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,458 INFO L273 TraceCheckUtils]: 59: Hoare triple {34810#(and (or (<= main_n 51) (<= main_i 116)) (or (< 51 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34811#(and (or (< 51 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 51)))} is VALID [2018-12-18 18:03:04,459 INFO L273 TraceCheckUtils]: 60: Hoare triple {34811#(and (or (< 51 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 51)))} assume i <= n * 4; {34811#(and (or (< 51 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 51)))} is VALID [2018-12-18 18:03:04,460 INFO L273 TraceCheckUtils]: 61: Hoare triple {34811#(and (or (< 51 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34812#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 124)))} is VALID [2018-12-18 18:03:04,460 INFO L273 TraceCheckUtils]: 62: Hoare triple {34812#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 124)))} assume i <= n * 4; {34812#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 124)))} is VALID [2018-12-18 18:03:04,461 INFO L273 TraceCheckUtils]: 63: Hoare triple {34812#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 124)))} assume a[i] != 23;i := i + 4; {34813#(and (or (<= main_n 51) (<= main_i 128)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2018-12-18 18:03:04,462 INFO L273 TraceCheckUtils]: 64: Hoare triple {34813#(and (or (<= main_n 51) (<= main_i 128)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume i <= n * 4; {34813#(and (or (<= main_n 51) (<= main_i 128)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2018-12-18 18:03:04,463 INFO L273 TraceCheckUtils]: 65: Hoare triple {34813#(and (or (<= main_n 51) (<= main_i 128)) (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume a[i] != 23;i := i + 4; {34814#(and (or (<= main_i 132) (<= main_n 51)) (or (< 51 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,464 INFO L273 TraceCheckUtils]: 66: Hoare triple {34814#(and (or (<= main_i 132) (<= main_n 51)) (or (< 51 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34814#(and (or (<= main_i 132) (<= main_n 51)) (or (< 51 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,465 INFO L273 TraceCheckUtils]: 67: Hoare triple {34814#(and (or (<= main_i 132) (<= main_n 51)) (or (< 51 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34815#(and (or (< 51 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 51)))} is VALID [2018-12-18 18:03:04,466 INFO L273 TraceCheckUtils]: 68: Hoare triple {34815#(and (or (< 51 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 51)))} assume i <= n * 4; {34815#(and (or (< 51 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 51)))} is VALID [2018-12-18 18:03:04,467 INFO L273 TraceCheckUtils]: 69: Hoare triple {34815#(and (or (< 51 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34816#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 51) (<= main_i 140)))} is VALID [2018-12-18 18:03:04,468 INFO L273 TraceCheckUtils]: 70: Hoare triple {34816#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 51) (<= main_i 140)))} assume i <= n * 4; {34816#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 51) (<= main_i 140)))} is VALID [2018-12-18 18:03:04,469 INFO L273 TraceCheckUtils]: 71: Hoare triple {34816#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 51) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {34817#(and (or (<= main_n 51) (<= main_i 144)) (or (< 51 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,469 INFO L273 TraceCheckUtils]: 72: Hoare triple {34817#(and (or (<= main_n 51) (<= main_i 144)) (or (< 51 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34817#(and (or (<= main_n 51) (<= main_i 144)) (or (< 51 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,470 INFO L273 TraceCheckUtils]: 73: Hoare triple {34817#(and (or (<= main_n 51) (<= main_i 144)) (or (< 51 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34818#(and (or (< 51 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 148)))} is VALID [2018-12-18 18:03:04,471 INFO L273 TraceCheckUtils]: 74: Hoare triple {34818#(and (or (< 51 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 148)))} assume i <= n * 4; {34818#(and (or (< 51 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 148)))} is VALID [2018-12-18 18:03:04,472 INFO L273 TraceCheckUtils]: 75: Hoare triple {34818#(and (or (< 51 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 148)))} assume a[i] != 23;i := i + 4; {34819#(and (or (<= main_n 51) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2018-12-18 18:03:04,473 INFO L273 TraceCheckUtils]: 76: Hoare triple {34819#(and (or (<= main_n 51) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34819#(and (or (<= main_n 51) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2018-12-18 18:03:04,474 INFO L273 TraceCheckUtils]: 77: Hoare triple {34819#(and (or (<= main_n 51) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34820#(and (or (< 51 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 51)))} is VALID [2018-12-18 18:03:04,475 INFO L273 TraceCheckUtils]: 78: Hoare triple {34820#(and (or (< 51 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 51)))} assume i <= n * 4; {34820#(and (or (< 51 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 51)))} is VALID [2018-12-18 18:03:04,476 INFO L273 TraceCheckUtils]: 79: Hoare triple {34820#(and (or (< 51 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34821#(and (or (<= main_n 51) (<= main_i 160)) (or (< 51 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,477 INFO L273 TraceCheckUtils]: 80: Hoare triple {34821#(and (or (<= main_n 51) (<= main_i 160)) (or (< 51 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34821#(and (or (<= main_n 51) (<= main_i 160)) (or (< 51 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,478 INFO L273 TraceCheckUtils]: 81: Hoare triple {34821#(and (or (<= main_n 51) (<= main_i 160)) (or (< 51 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34822#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 164)))} is VALID [2018-12-18 18:03:04,478 INFO L273 TraceCheckUtils]: 82: Hoare triple {34822#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 164)))} assume i <= n * 4; {34822#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 164)))} is VALID [2018-12-18 18:03:04,479 INFO L273 TraceCheckUtils]: 83: Hoare triple {34822#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)) (or (<= main_n 51) (<= main_i 164)))} assume a[i] != 23;i := i + 4; {34823#(and (or (<= main_n 51) (<= main_i 168)) (or (< 51 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,480 INFO L273 TraceCheckUtils]: 84: Hoare triple {34823#(and (or (<= main_n 51) (<= main_i 168)) (or (< 51 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {34823#(and (or (<= main_n 51) (<= main_i 168)) (or (< 51 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:04,481 INFO L273 TraceCheckUtils]: 85: Hoare triple {34823#(and (or (<= main_n 51) (<= main_i 168)) (or (< 51 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {34824#(and (or (< 51 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 172)))} is VALID [2018-12-18 18:03:04,482 INFO L273 TraceCheckUtils]: 86: Hoare triple {34824#(and (or (< 51 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 172)))} assume i <= n * 4; {34824#(and (or (< 51 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 172)))} is VALID [2018-12-18 18:03:04,483 INFO L273 TraceCheckUtils]: 87: Hoare triple {34824#(and (or (< 51 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 172)))} assume a[i] != 23;i := i + 4; {34825#(and (or (< 51 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 51)))} is VALID [2018-12-18 18:03:04,484 INFO L273 TraceCheckUtils]: 88: Hoare triple {34825#(and (or (< 51 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 51)))} assume i <= n * 4; {34825#(and (or (< 51 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 51)))} is VALID [2018-12-18 18:03:04,485 INFO L273 TraceCheckUtils]: 89: Hoare triple {34825#(and (or (< 51 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34826#(and (or (<= main_n 51) (<= main_i 180)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 51 main_n)))} is VALID [2018-12-18 18:03:04,486 INFO L273 TraceCheckUtils]: 90: Hoare triple {34826#(and (or (<= main_n 51) (<= main_i 180)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 51 main_n)))} assume i <= n * 4; {34826#(and (or (<= main_n 51) (<= main_i 180)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 51 main_n)))} is VALID [2018-12-18 18:03:04,487 INFO L273 TraceCheckUtils]: 91: Hoare triple {34826#(and (or (<= main_n 51) (<= main_i 180)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34827#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 51 main_n)) (or (<= main_i 184) (<= main_n 51)))} is VALID [2018-12-18 18:03:04,488 INFO L273 TraceCheckUtils]: 92: Hoare triple {34827#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 51 main_n)) (or (<= main_i 184) (<= main_n 51)))} assume i <= n * 4; {34827#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 51 main_n)) (or (<= main_i 184) (<= main_n 51)))} is VALID [2018-12-18 18:03:04,489 INFO L273 TraceCheckUtils]: 93: Hoare triple {34827#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 51 main_n)) (or (<= main_i 184) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34828#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))) (or (<= main_i 188) (<= main_n 51)))} is VALID [2018-12-18 18:03:04,489 INFO L273 TraceCheckUtils]: 94: Hoare triple {34828#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))) (or (<= main_i 188) (<= main_n 51)))} assume i <= n * 4; {34828#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))) (or (<= main_i 188) (<= main_n 51)))} is VALID [2018-12-18 18:03:04,491 INFO L273 TraceCheckUtils]: 95: Hoare triple {34828#(and (or (< 51 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))) (or (<= main_i 188) (<= main_n 51)))} assume a[i] != 23;i := i + 4; {34829#(and (or (<= main_i 192) (<= main_n 51)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2018-12-18 18:03:04,491 INFO L273 TraceCheckUtils]: 96: Hoare triple {34829#(and (or (<= main_i 192) (<= main_n 51)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume i <= n * 4; {34829#(and (or (<= main_i 192) (<= main_n 51)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} is VALID [2018-12-18 18:03:04,492 INFO L273 TraceCheckUtils]: 97: Hoare triple {34829#(and (or (<= main_i 192) (<= main_n 51)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 51 main_n)))} assume a[i] != 23;i := i + 4; {34830#(and (or (< 51 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 196)))} is VALID [2018-12-18 18:03:04,493 INFO L273 TraceCheckUtils]: 98: Hoare triple {34830#(and (or (< 51 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 196)))} assume i <= n * 4; {34830#(and (or (< 51 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 196)))} is VALID [2018-12-18 18:03:04,494 INFO L273 TraceCheckUtils]: 99: Hoare triple {34830#(and (or (< 51 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 51) (<= main_i 196)))} assume a[i] != 23;i := i + 4; {34831#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 51 main_n)) (or (<= main_n 51) (<= main_i 200)))} is VALID [2018-12-18 18:03:04,495 INFO L273 TraceCheckUtils]: 100: Hoare triple {34831#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 51 main_n)) (or (<= main_n 51) (<= main_i 200)))} assume i <= n * 4; {34831#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 51 main_n)) (or (<= main_n 51) (<= main_i 200)))} is VALID [2018-12-18 18:03:04,496 INFO L273 TraceCheckUtils]: 101: Hoare triple {34831#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 51 main_n)) (or (<= main_n 51) (<= main_i 200)))} assume a[i] != 23;i := i + 4; {34832#(and (or (<= main_n 51) (<= main_i 204)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 51 main_n)))} is VALID [2018-12-18 18:03:04,497 INFO L273 TraceCheckUtils]: 102: Hoare triple {34832#(and (or (<= main_n 51) (<= main_i 204)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 51 main_n)))} assume i <= n * 4; {34833#(and (or (< 51 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 204))} is VALID [2018-12-18 18:03:04,498 INFO L273 TraceCheckUtils]: 103: Hoare triple {34833#(and (or (< 51 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))) (<= main_i 204))} assume a[i] != 23;i := i + 4; {34834#(and (<= main_i 208) (<= 52 main_n))} is VALID [2018-12-18 18:03:04,499 INFO L273 TraceCheckUtils]: 104: Hoare triple {34834#(and (<= main_i 208) (<= 52 main_n))} assume !(i <= n * 4); {34780#false} is VALID [2018-12-18 18:03:04,549 INFO L134 CoverageAnalysis]: Checked inductivity of 2652 backedges. 0 proven. 2652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:03:04,549 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 18:03:04,550 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 18:03:04,550 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 18:03:04,550 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 18:03:04,550 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 18:03:04,550 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 18:03:04,558 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-18 18:03:04,558 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-18 18:03:04,597 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-18 18:03:04,597 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 18:03:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 18:03:04,614 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 18:03:04,621 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 18:03:04,623 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 18:03:04,634 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 18:03:04,634 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 18:03:04,637 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 18:03:04,637 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_55]. (and (= (store v_main_a_55 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 18:03:04,637 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 18:03:08,901 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 18:03:08,903 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 18:03:08,909 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 18:03:08,909 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 18:03:08,912 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 18:03:08,912 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= 204 .cse0) (not (= 23 (select main_a 204))) (<= main_i 208) (= 23 (select main_a .cse0)))) [2018-12-18 18:03:08,912 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 204 .cse0) (<= main_i 208) (not (= 204 .cse0)))) [2018-12-18 18:03:08,977 INFO L273 TraceCheckUtils]: 0: Hoare triple {34779#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {34838#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,978 INFO L273 TraceCheckUtils]: 1: Hoare triple {34838#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34842#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 18:03:08,978 INFO L273 TraceCheckUtils]: 2: Hoare triple {34842#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {34842#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 18:03:08,978 INFO L273 TraceCheckUtils]: 3: Hoare triple {34842#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {34849#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,979 INFO L273 TraceCheckUtils]: 4: Hoare triple {34849#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34849#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,979 INFO L273 TraceCheckUtils]: 5: Hoare triple {34849#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34856#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 18:03:08,980 INFO L273 TraceCheckUtils]: 6: Hoare triple {34856#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {34856#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 18:03:08,981 INFO L273 TraceCheckUtils]: 7: Hoare triple {34856#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {34863#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,981 INFO L273 TraceCheckUtils]: 8: Hoare triple {34863#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34863#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,982 INFO L273 TraceCheckUtils]: 9: Hoare triple {34863#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34870#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,983 INFO L273 TraceCheckUtils]: 10: Hoare triple {34870#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34870#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,984 INFO L273 TraceCheckUtils]: 11: Hoare triple {34870#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34877#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,984 INFO L273 TraceCheckUtils]: 12: Hoare triple {34877#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34877#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,985 INFO L273 TraceCheckUtils]: 13: Hoare triple {34877#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34884#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,986 INFO L273 TraceCheckUtils]: 14: Hoare triple {34884#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34884#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,986 INFO L273 TraceCheckUtils]: 15: Hoare triple {34884#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34891#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,987 INFO L273 TraceCheckUtils]: 16: Hoare triple {34891#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34891#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,988 INFO L273 TraceCheckUtils]: 17: Hoare triple {34891#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34898#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,989 INFO L273 TraceCheckUtils]: 18: Hoare triple {34898#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34898#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,989 INFO L273 TraceCheckUtils]: 19: Hoare triple {34898#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34905#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,990 INFO L273 TraceCheckUtils]: 20: Hoare triple {34905#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34905#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,991 INFO L273 TraceCheckUtils]: 21: Hoare triple {34905#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34912#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,991 INFO L273 TraceCheckUtils]: 22: Hoare triple {34912#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34912#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,992 INFO L273 TraceCheckUtils]: 23: Hoare triple {34912#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34919#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,993 INFO L273 TraceCheckUtils]: 24: Hoare triple {34919#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34919#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,993 INFO L273 TraceCheckUtils]: 25: Hoare triple {34919#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34926#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,994 INFO L273 TraceCheckUtils]: 26: Hoare triple {34926#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34926#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,995 INFO L273 TraceCheckUtils]: 27: Hoare triple {34926#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34933#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,995 INFO L273 TraceCheckUtils]: 28: Hoare triple {34933#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34933#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,996 INFO L273 TraceCheckUtils]: 29: Hoare triple {34933#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34940#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,997 INFO L273 TraceCheckUtils]: 30: Hoare triple {34940#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34940#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,998 INFO L273 TraceCheckUtils]: 31: Hoare triple {34940#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34947#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,998 INFO L273 TraceCheckUtils]: 32: Hoare triple {34947#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34947#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:08,999 INFO L273 TraceCheckUtils]: 33: Hoare triple {34947#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34954#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,000 INFO L273 TraceCheckUtils]: 34: Hoare triple {34954#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34954#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,000 INFO L273 TraceCheckUtils]: 35: Hoare triple {34954#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34961#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,001 INFO L273 TraceCheckUtils]: 36: Hoare triple {34961#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34961#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,002 INFO L273 TraceCheckUtils]: 37: Hoare triple {34961#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34968#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,002 INFO L273 TraceCheckUtils]: 38: Hoare triple {34968#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34968#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,003 INFO L273 TraceCheckUtils]: 39: Hoare triple {34968#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34975#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 18:03:09,004 INFO L273 TraceCheckUtils]: 40: Hoare triple {34975#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {34975#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 18:03:09,004 INFO L273 TraceCheckUtils]: 41: Hoare triple {34975#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {34982#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,005 INFO L273 TraceCheckUtils]: 42: Hoare triple {34982#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34982#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,006 INFO L273 TraceCheckUtils]: 43: Hoare triple {34982#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34989#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,007 INFO L273 TraceCheckUtils]: 44: Hoare triple {34989#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34989#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,007 INFO L273 TraceCheckUtils]: 45: Hoare triple {34989#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34996#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,008 INFO L273 TraceCheckUtils]: 46: Hoare triple {34996#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {34996#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,009 INFO L273 TraceCheckUtils]: 47: Hoare triple {34996#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35003#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,009 INFO L273 TraceCheckUtils]: 48: Hoare triple {35003#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35003#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,010 INFO L273 TraceCheckUtils]: 49: Hoare triple {35003#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35010#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,011 INFO L273 TraceCheckUtils]: 50: Hoare triple {35010#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35010#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,011 INFO L273 TraceCheckUtils]: 51: Hoare triple {35010#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35017#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,019 INFO L273 TraceCheckUtils]: 52: Hoare triple {35017#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35017#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,019 INFO L273 TraceCheckUtils]: 53: Hoare triple {35017#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35024#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,020 INFO L273 TraceCheckUtils]: 54: Hoare triple {35024#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35024#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,020 INFO L273 TraceCheckUtils]: 55: Hoare triple {35024#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35031#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,021 INFO L273 TraceCheckUtils]: 56: Hoare triple {35031#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35031#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,021 INFO L273 TraceCheckUtils]: 57: Hoare triple {35031#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35038#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,021 INFO L273 TraceCheckUtils]: 58: Hoare triple {35038#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35038#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,022 INFO L273 TraceCheckUtils]: 59: Hoare triple {35038#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35045#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,022 INFO L273 TraceCheckUtils]: 60: Hoare triple {35045#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35045#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,023 INFO L273 TraceCheckUtils]: 61: Hoare triple {35045#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35052#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,023 INFO L273 TraceCheckUtils]: 62: Hoare triple {35052#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35052#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,024 INFO L273 TraceCheckUtils]: 63: Hoare triple {35052#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35059#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,025 INFO L273 TraceCheckUtils]: 64: Hoare triple {35059#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35059#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,026 INFO L273 TraceCheckUtils]: 65: Hoare triple {35059#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35066#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,026 INFO L273 TraceCheckUtils]: 66: Hoare triple {35066#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35066#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,027 INFO L273 TraceCheckUtils]: 67: Hoare triple {35066#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35073#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,028 INFO L273 TraceCheckUtils]: 68: Hoare triple {35073#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35073#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,028 INFO L273 TraceCheckUtils]: 69: Hoare triple {35073#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35080#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 18:03:09,029 INFO L273 TraceCheckUtils]: 70: Hoare triple {35080#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {35080#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 18:03:09,030 INFO L273 TraceCheckUtils]: 71: Hoare triple {35080#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {35087#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,031 INFO L273 TraceCheckUtils]: 72: Hoare triple {35087#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35087#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,031 INFO L273 TraceCheckUtils]: 73: Hoare triple {35087#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35094#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,032 INFO L273 TraceCheckUtils]: 74: Hoare triple {35094#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35094#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,033 INFO L273 TraceCheckUtils]: 75: Hoare triple {35094#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35101#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,033 INFO L273 TraceCheckUtils]: 76: Hoare triple {35101#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35101#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,034 INFO L273 TraceCheckUtils]: 77: Hoare triple {35101#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35108#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,035 INFO L273 TraceCheckUtils]: 78: Hoare triple {35108#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35108#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,035 INFO L273 TraceCheckUtils]: 79: Hoare triple {35108#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35115#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,036 INFO L273 TraceCheckUtils]: 80: Hoare triple {35115#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35115#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,037 INFO L273 TraceCheckUtils]: 81: Hoare triple {35115#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35122#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 18:03:09,037 INFO L273 TraceCheckUtils]: 82: Hoare triple {35122#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {35122#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 18:03:09,038 INFO L273 TraceCheckUtils]: 83: Hoare triple {35122#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {35129#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,039 INFO L273 TraceCheckUtils]: 84: Hoare triple {35129#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35129#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,039 INFO L273 TraceCheckUtils]: 85: Hoare triple {35129#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35136#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,040 INFO L273 TraceCheckUtils]: 86: Hoare triple {35136#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35136#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,041 INFO L273 TraceCheckUtils]: 87: Hoare triple {35136#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35143#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,041 INFO L273 TraceCheckUtils]: 88: Hoare triple {35143#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35143#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,042 INFO L273 TraceCheckUtils]: 89: Hoare triple {35143#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35150#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,043 INFO L273 TraceCheckUtils]: 90: Hoare triple {35150#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35150#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,043 INFO L273 TraceCheckUtils]: 91: Hoare triple {35150#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35157#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,044 INFO L273 TraceCheckUtils]: 92: Hoare triple {35157#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35157#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,045 INFO L273 TraceCheckUtils]: 93: Hoare triple {35157#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35164#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,045 INFO L273 TraceCheckUtils]: 94: Hoare triple {35164#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35164#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,046 INFO L273 TraceCheckUtils]: 95: Hoare triple {35164#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35171#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,047 INFO L273 TraceCheckUtils]: 96: Hoare triple {35171#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35171#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,047 INFO L273 TraceCheckUtils]: 97: Hoare triple {35171#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35178#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,048 INFO L273 TraceCheckUtils]: 98: Hoare triple {35178#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35178#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,049 INFO L273 TraceCheckUtils]: 99: Hoare triple {35178#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35185#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,049 INFO L273 TraceCheckUtils]: 100: Hoare triple {35185#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35185#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,050 INFO L273 TraceCheckUtils]: 101: Hoare triple {35185#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {35192#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,051 INFO L273 TraceCheckUtils]: 102: Hoare triple {35192#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {35196#(and (<= main_i (* 4 main_n)) (= main_i 204) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:09,051 INFO L273 TraceCheckUtils]: 103: Hoare triple {35196#(and (<= main_i (* 4 main_n)) (= main_i 204) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {34834#(and (<= main_i 208) (<= 52 main_n))} is VALID [2018-12-18 18:03:09,052 INFO L273 TraceCheckUtils]: 104: Hoare triple {34834#(and (<= main_i 208) (<= 52 main_n))} assume !(i <= n * 4); {34780#false} is VALID [2018-12-18 18:03:09,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2652 backedges. 0 proven. 2652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:03:09,076 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 18:03:16,610 INFO L273 TraceCheckUtils]: 104: Hoare triple {35203#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {34780#false} is VALID [2018-12-18 18:03:16,611 INFO L273 TraceCheckUtils]: 103: Hoare triple {35207#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {35203#(<= main_i (* 4 main_n))} is VALID [2018-12-18 18:03:16,612 INFO L273 TraceCheckUtils]: 102: Hoare triple {35211#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {35207#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 18:03:16,613 INFO L273 TraceCheckUtils]: 101: Hoare triple {35215#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {35211#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 18:03:16,613 INFO L273 TraceCheckUtils]: 100: Hoare triple {35215#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {35215#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 18:03:16,614 INFO L273 TraceCheckUtils]: 99: Hoare triple {35222#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {35215#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 18:03:16,615 INFO L273 TraceCheckUtils]: 98: Hoare triple {35222#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {35222#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 18:03:16,616 INFO L273 TraceCheckUtils]: 97: Hoare triple {35229#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {35222#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 18:03:16,616 INFO L273 TraceCheckUtils]: 96: Hoare triple {35229#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {35229#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 18:03:16,618 INFO L273 TraceCheckUtils]: 95: Hoare triple {35236#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {35229#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 18:03:16,618 INFO L273 TraceCheckUtils]: 94: Hoare triple {35236#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {35236#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 18:03:16,619 INFO L273 TraceCheckUtils]: 93: Hoare triple {35243#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35236#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 18:03:16,620 INFO L273 TraceCheckUtils]: 92: Hoare triple {35243#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {35243#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,621 INFO L273 TraceCheckUtils]: 91: Hoare triple {35250#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {35243#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,622 INFO L273 TraceCheckUtils]: 90: Hoare triple {35250#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {35250#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 18:03:16,623 INFO L273 TraceCheckUtils]: 89: Hoare triple {35257#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35250#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 18:03:16,623 INFO L273 TraceCheckUtils]: 88: Hoare triple {35257#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {35257#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,624 INFO L273 TraceCheckUtils]: 87: Hoare triple {35264#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35257#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,625 INFO L273 TraceCheckUtils]: 86: Hoare triple {35264#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {35264#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,626 INFO L273 TraceCheckUtils]: 85: Hoare triple {35271#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35264#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,627 INFO L273 TraceCheckUtils]: 84: Hoare triple {35271#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {35271#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,628 INFO L273 TraceCheckUtils]: 83: Hoare triple {35278#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {35271#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,628 INFO L273 TraceCheckUtils]: 82: Hoare triple {35278#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {35278#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 18:03:16,630 INFO L273 TraceCheckUtils]: 81: Hoare triple {35285#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35278#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 18:03:16,630 INFO L273 TraceCheckUtils]: 80: Hoare triple {35285#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {35285#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,631 INFO L273 TraceCheckUtils]: 79: Hoare triple {35292#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35285#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,632 INFO L273 TraceCheckUtils]: 78: Hoare triple {35292#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {35292#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,633 INFO L273 TraceCheckUtils]: 77: Hoare triple {35299#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {35292#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,633 INFO L273 TraceCheckUtils]: 76: Hoare triple {35299#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {35299#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 18:03:16,635 INFO L273 TraceCheckUtils]: 75: Hoare triple {35306#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35299#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 18:03:16,635 INFO L273 TraceCheckUtils]: 74: Hoare triple {35306#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {35306#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,636 INFO L273 TraceCheckUtils]: 73: Hoare triple {35313#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {35306#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,637 INFO L273 TraceCheckUtils]: 72: Hoare triple {35313#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {35313#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 18:03:16,638 INFO L273 TraceCheckUtils]: 71: Hoare triple {35320#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {35313#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 18:03:16,639 INFO L273 TraceCheckUtils]: 70: Hoare triple {35320#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {35320#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 18:03:16,640 INFO L273 TraceCheckUtils]: 69: Hoare triple {35327#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {35320#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 18:03:16,640 INFO L273 TraceCheckUtils]: 68: Hoare triple {35327#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {35327#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 18:03:16,642 INFO L273 TraceCheckUtils]: 67: Hoare triple {35334#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {35327#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 18:03:16,642 INFO L273 TraceCheckUtils]: 66: Hoare triple {35334#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {35334#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 18:03:16,643 INFO L273 TraceCheckUtils]: 65: Hoare triple {35341#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {35334#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 18:03:16,644 INFO L273 TraceCheckUtils]: 64: Hoare triple {35341#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {35341#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 18:03:16,645 INFO L273 TraceCheckUtils]: 63: Hoare triple {35348#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {35341#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 18:03:16,645 INFO L273 TraceCheckUtils]: 62: Hoare triple {35348#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {35348#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 18:03:16,647 INFO L273 TraceCheckUtils]: 61: Hoare triple {35355#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35348#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 18:03:16,647 INFO L273 TraceCheckUtils]: 60: Hoare triple {35355#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {35355#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,648 INFO L273 TraceCheckUtils]: 59: Hoare triple {35362#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35355#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,649 INFO L273 TraceCheckUtils]: 58: Hoare triple {35362#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {35362#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,650 INFO L273 TraceCheckUtils]: 57: Hoare triple {35369#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35362#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,651 INFO L273 TraceCheckUtils]: 56: Hoare triple {35369#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {35369#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,652 INFO L273 TraceCheckUtils]: 55: Hoare triple {35376#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {35369#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,652 INFO L273 TraceCheckUtils]: 54: Hoare triple {35376#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {35376#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 18:03:16,653 INFO L273 TraceCheckUtils]: 53: Hoare triple {35383#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35376#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 18:03:16,654 INFO L273 TraceCheckUtils]: 52: Hoare triple {35383#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {35383#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,655 INFO L273 TraceCheckUtils]: 51: Hoare triple {35390#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {35383#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,656 INFO L273 TraceCheckUtils]: 50: Hoare triple {35390#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {35390#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 18:03:16,657 INFO L273 TraceCheckUtils]: 49: Hoare triple {35397#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {35390#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 18:03:16,657 INFO L273 TraceCheckUtils]: 48: Hoare triple {35397#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {35397#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 18:03:16,659 INFO L273 TraceCheckUtils]: 47: Hoare triple {35404#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {35397#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 18:03:16,659 INFO L273 TraceCheckUtils]: 46: Hoare triple {35404#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {35404#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 18:03:16,660 INFO L273 TraceCheckUtils]: 45: Hoare triple {35411#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35404#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 18:03:16,661 INFO L273 TraceCheckUtils]: 44: Hoare triple {35411#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {35411#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,662 INFO L273 TraceCheckUtils]: 43: Hoare triple {35418#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35411#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,663 INFO L273 TraceCheckUtils]: 42: Hoare triple {35418#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {35418#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,664 INFO L273 TraceCheckUtils]: 41: Hoare triple {35425#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {35418#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,664 INFO L273 TraceCheckUtils]: 40: Hoare triple {35425#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {35425#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 18:03:16,665 INFO L273 TraceCheckUtils]: 39: Hoare triple {35432#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35425#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 18:03:16,666 INFO L273 TraceCheckUtils]: 38: Hoare triple {35432#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {35432#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,667 INFO L273 TraceCheckUtils]: 37: Hoare triple {35439#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {35432#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,668 INFO L273 TraceCheckUtils]: 36: Hoare triple {35439#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {35439#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 18:03:16,669 INFO L273 TraceCheckUtils]: 35: Hoare triple {35446#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {35439#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 18:03:16,669 INFO L273 TraceCheckUtils]: 34: Hoare triple {35446#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {35446#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 18:03:16,670 INFO L273 TraceCheckUtils]: 33: Hoare triple {35453#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {35446#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 18:03:16,671 INFO L273 TraceCheckUtils]: 32: Hoare triple {35453#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {35453#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 18:03:16,672 INFO L273 TraceCheckUtils]: 31: Hoare triple {35460#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {35453#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 18:03:16,672 INFO L273 TraceCheckUtils]: 30: Hoare triple {35460#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {35460#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 18:03:16,674 INFO L273 TraceCheckUtils]: 29: Hoare triple {35467#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {35460#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 18:03:16,674 INFO L273 TraceCheckUtils]: 28: Hoare triple {35467#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {35467#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 18:03:16,675 INFO L273 TraceCheckUtils]: 27: Hoare triple {35474#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {35467#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 18:03:16,676 INFO L273 TraceCheckUtils]: 26: Hoare triple {35474#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {35474#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 18:03:16,677 INFO L273 TraceCheckUtils]: 25: Hoare triple {35481#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {35474#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 18:03:16,677 INFO L273 TraceCheckUtils]: 24: Hoare triple {35481#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {35481#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 18:03:16,678 INFO L273 TraceCheckUtils]: 23: Hoare triple {35488#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {35481#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 18:03:16,679 INFO L273 TraceCheckUtils]: 22: Hoare triple {35488#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {35488#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 18:03:16,680 INFO L273 TraceCheckUtils]: 21: Hoare triple {35495#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {35488#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 18:03:16,681 INFO L273 TraceCheckUtils]: 20: Hoare triple {35495#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {35495#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 18:03:16,682 INFO L273 TraceCheckUtils]: 19: Hoare triple {35502#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35495#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 18:03:16,682 INFO L273 TraceCheckUtils]: 18: Hoare triple {35502#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {35502#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,684 INFO L273 TraceCheckUtils]: 17: Hoare triple {35509#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {35502#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,684 INFO L273 TraceCheckUtils]: 16: Hoare triple {35509#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {35509#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,685 INFO L273 TraceCheckUtils]: 15: Hoare triple {35516#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {35509#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2018-12-18 18:03:16,686 INFO L273 TraceCheckUtils]: 14: Hoare triple {35516#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {35516#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2018-12-18 18:03:16,687 INFO L273 TraceCheckUtils]: 13: Hoare triple {35523#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {35516#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2018-12-18 18:03:16,688 INFO L273 TraceCheckUtils]: 12: Hoare triple {35523#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {35523#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2018-12-18 18:03:16,689 INFO L273 TraceCheckUtils]: 11: Hoare triple {35530#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {35523#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2018-12-18 18:03:16,689 INFO L273 TraceCheckUtils]: 10: Hoare triple {35530#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume i <= n * 4; {35530#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2018-12-18 18:03:16,691 INFO L273 TraceCheckUtils]: 9: Hoare triple {35537#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume a[i] != 23;i := i + 4; {35530#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2018-12-18 18:03:16,691 INFO L273 TraceCheckUtils]: 8: Hoare triple {35537#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume i <= n * 4; {35537#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2018-12-18 18:03:16,692 INFO L273 TraceCheckUtils]: 7: Hoare triple {35544#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume a[i] != 23;i := i + 4; {35537#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2018-12-18 18:03:16,693 INFO L273 TraceCheckUtils]: 6: Hoare triple {35544#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume i <= n * 4; {35544#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2018-12-18 18:03:16,694 INFO L273 TraceCheckUtils]: 5: Hoare triple {35551#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume a[i] != 23;i := i + 4; {35544#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2018-12-18 18:03:16,695 INFO L273 TraceCheckUtils]: 4: Hoare triple {35551#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume i <= n * 4; {35551#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2018-12-18 18:03:16,696 INFO L273 TraceCheckUtils]: 3: Hoare triple {35558#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} assume a[i] != 23;i := i + 4; {35551#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2018-12-18 18:03:16,696 INFO L273 TraceCheckUtils]: 2: Hoare triple {35558#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} assume i <= n * 4; {35558#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} is VALID [2018-12-18 18:03:16,697 INFO L273 TraceCheckUtils]: 1: Hoare triple {35565#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} assume a[i] != 23;i := i + 4; {35558#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} is VALID [2018-12-18 18:03:16,698 INFO L273 TraceCheckUtils]: 0: Hoare triple {34779#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {35565#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} is VALID [2018-12-18 18:03:16,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2652 backedges. 0 proven. 2652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:03:16,756 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 18:03:16,757 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 54] total 161 [2018-12-18 18:03:16,757 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 18:03:16,757 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 105 [2018-12-18 18:03:16,758 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 18:03:16,758 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 109 states. [2018-12-18 18:03:17,036 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 209 edges. 209 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 18:03:17,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 109 states [2018-12-18 18:03:17,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2018-12-18 18:03:17,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3194, Invalid=23212, Unknown=0, NotChecked=0, Total=26406 [2018-12-18 18:03:17,038 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand 109 states. [2018-12-18 18:03:37,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:03:37,051 INFO L93 Difference]: Finished difference Result 110 states and 110 transitions. [2018-12-18 18:03:37,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-12-18 18:03:37,051 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 105 [2018-12-18 18:03:37,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 18:03:37,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-12-18 18:03:37,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 110 transitions. [2018-12-18 18:03:37,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-12-18 18:03:37,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 110 transitions. [2018-12-18 18:03:37,054 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 56 states and 110 transitions. [2018-12-18 18:03:37,171 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 110 edges. 110 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 18:03:37,173 INFO L225 Difference]: With dead ends: 110 [2018-12-18 18:03:37,173 INFO L226 Difference]: Without dead ends: 109 [2018-12-18 18:03:37,174 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5936 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=3194, Invalid=23212, Unknown=0, NotChecked=0, Total=26406 [2018-12-18 18:03:37,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-12-18 18:03:37,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2018-12-18 18:03:37,302 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 18:03:37,302 INFO L82 GeneralOperation]: Start isEquivalent. First operand 109 states. Second operand 108 states. [2018-12-18 18:03:37,302 INFO L74 IsIncluded]: Start isIncluded. First operand 109 states. Second operand 108 states. [2018-12-18 18:03:37,302 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 108 states. [2018-12-18 18:03:37,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:03:37,304 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2018-12-18 18:03:37,304 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2018-12-18 18:03:37,304 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 18:03:37,305 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 18:03:37,305 INFO L74 IsIncluded]: Start isIncluded. First operand 108 states. Second operand 109 states. [2018-12-18 18:03:37,305 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 109 states. [2018-12-18 18:03:37,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:03:37,306 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2018-12-18 18:03:37,307 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2018-12-18 18:03:37,307 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 18:03:37,307 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 18:03:37,307 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 18:03:37,307 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 18:03:37,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-12-18 18:03:37,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 108 transitions. [2018-12-18 18:03:37,309 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 108 transitions. Word has length 105 [2018-12-18 18:03:37,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 18:03:37,309 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 108 transitions. [2018-12-18 18:03:37,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has 109 states. [2018-12-18 18:03:37,309 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 108 transitions. [2018-12-18 18:03:37,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-12-18 18:03:37,310 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 18:03:37,310 INFO L402 BasicCegarLoop]: trace histogram [53, 52, 1, 1] [2018-12-18 18:03:37,310 INFO L423 AbstractCegarLoop]: === Iteration 53 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 18:03:37,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 18:03:37,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1914541240, now seen corresponding path program 52 times [2018-12-18 18:03:37,310 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 18:03:37,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 18:03:37,311 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 18:03:37,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 18:03:37,311 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 18:03:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 18:03:40,526 INFO L273 TraceCheckUtils]: 0: Hoare triple {36111#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {36113#(and (or (<= main_i 0) (<= main_n 52)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2018-12-18 18:03:40,527 INFO L273 TraceCheckUtils]: 1: Hoare triple {36113#(and (or (<= main_i 0) (<= main_n 52)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36114#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 52) (<= main_i 4)))} is VALID [2018-12-18 18:03:40,528 INFO L273 TraceCheckUtils]: 2: Hoare triple {36114#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 52) (<= main_i 4)))} assume i <= n * 4; {36114#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 52) (<= main_i 4)))} is VALID [2018-12-18 18:03:40,529 INFO L273 TraceCheckUtils]: 3: Hoare triple {36114#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_n 52) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {36115#(and (or (< 52 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,530 INFO L273 TraceCheckUtils]: 4: Hoare triple {36115#(and (or (< 52 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 52)))} assume i <= n * 4; {36115#(and (or (< 52 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,531 INFO L273 TraceCheckUtils]: 5: Hoare triple {36115#(and (or (< 52 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 8) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36116#(and (or (< 52 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 12)))} is VALID [2018-12-18 18:03:40,531 INFO L273 TraceCheckUtils]: 6: Hoare triple {36116#(and (or (< 52 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 12)))} assume i <= n * 4; {36116#(and (or (< 52 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 12)))} is VALID [2018-12-18 18:03:40,533 INFO L273 TraceCheckUtils]: 7: Hoare triple {36116#(and (or (< 52 main_n) (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {36117#(and (or (< 52 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 16)))} is VALID [2018-12-18 18:03:40,533 INFO L273 TraceCheckUtils]: 8: Hoare triple {36117#(and (or (< 52 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 16)))} assume i <= n * 4; {36117#(and (or (< 52 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 16)))} is VALID [2018-12-18 18:03:40,534 INFO L273 TraceCheckUtils]: 9: Hoare triple {36117#(and (or (< 52 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 16)))} assume a[i] != 23;i := i + 4; {36118#(and (or (<= main_i 20) (<= main_n 52)) (or (< 52 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,535 INFO L273 TraceCheckUtils]: 10: Hoare triple {36118#(and (or (<= main_i 20) (<= main_n 52)) (or (< 52 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36118#(and (or (<= main_i 20) (<= main_n 52)) (or (< 52 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,536 INFO L273 TraceCheckUtils]: 11: Hoare triple {36118#(and (or (<= main_i 20) (<= main_n 52)) (or (< 52 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36119#(and (or (<= main_i 24) (<= main_n 52)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2018-12-18 18:03:40,537 INFO L273 TraceCheckUtils]: 12: Hoare triple {36119#(and (or (<= main_i 24) (<= main_n 52)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36119#(and (or (<= main_i 24) (<= main_n 52)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2018-12-18 18:03:40,538 INFO L273 TraceCheckUtils]: 13: Hoare triple {36119#(and (or (<= main_i 24) (<= main_n 52)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36120#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 28)))} is VALID [2018-12-18 18:03:40,539 INFO L273 TraceCheckUtils]: 14: Hoare triple {36120#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 28)))} assume i <= n * 4; {36120#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 28)))} is VALID [2018-12-18 18:03:40,540 INFO L273 TraceCheckUtils]: 15: Hoare triple {36120#(and (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 28)))} assume a[i] != 23;i := i + 4; {36121#(and (or (<= main_i 32) (<= main_n 52)) (or (< 52 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,540 INFO L273 TraceCheckUtils]: 16: Hoare triple {36121#(and (or (<= main_i 32) (<= main_n 52)) (or (< 52 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36121#(and (or (<= main_i 32) (<= main_n 52)) (or (< 52 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,541 INFO L273 TraceCheckUtils]: 17: Hoare triple {36121#(and (or (<= main_i 32) (<= main_n 52)) (or (< 52 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36122#(and (or (<= main_i 36) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 52 main_n)))} is VALID [2018-12-18 18:03:40,542 INFO L273 TraceCheckUtils]: 18: Hoare triple {36122#(and (or (<= main_i 36) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 52 main_n)))} assume i <= n * 4; {36122#(and (or (<= main_i 36) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 52 main_n)))} is VALID [2018-12-18 18:03:40,543 INFO L273 TraceCheckUtils]: 19: Hoare triple {36122#(and (or (<= main_i 36) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36123#(and (or (<= main_i 40) (<= main_n 52)) (or (< 52 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,544 INFO L273 TraceCheckUtils]: 20: Hoare triple {36123#(and (or (<= main_i 40) (<= main_n 52)) (or (< 52 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36123#(and (or (<= main_i 40) (<= main_n 52)) (or (< 52 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,545 INFO L273 TraceCheckUtils]: 21: Hoare triple {36123#(and (or (<= main_i 40) (<= main_n 52)) (or (< 52 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36124#(and (or (< 52 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 44)))} is VALID [2018-12-18 18:03:40,546 INFO L273 TraceCheckUtils]: 22: Hoare triple {36124#(and (or (< 52 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 44)))} assume i <= n * 4; {36124#(and (or (< 52 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 44)))} is VALID [2018-12-18 18:03:40,547 INFO L273 TraceCheckUtils]: 23: Hoare triple {36124#(and (or (< 52 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 52) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {36125#(and (or (<= main_n 52) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2018-12-18 18:03:40,547 INFO L273 TraceCheckUtils]: 24: Hoare triple {36125#(and (or (<= main_n 52) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36125#(and (or (<= main_n 52) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2018-12-18 18:03:40,548 INFO L273 TraceCheckUtils]: 25: Hoare triple {36125#(and (or (<= main_n 52) (<= main_i 48)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36126#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 52) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,549 INFO L273 TraceCheckUtils]: 26: Hoare triple {36126#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 52) (<= main_n 52)))} assume i <= n * 4; {36126#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 52) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,550 INFO L273 TraceCheckUtils]: 27: Hoare triple {36126#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 52) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36127#(and (or (<= main_i 56) (<= main_n 52)) (or (< 52 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,551 INFO L273 TraceCheckUtils]: 28: Hoare triple {36127#(and (or (<= main_i 56) (<= main_n 52)) (or (< 52 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36127#(and (or (<= main_i 56) (<= main_n 52)) (or (< 52 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,552 INFO L273 TraceCheckUtils]: 29: Hoare triple {36127#(and (or (<= main_i 56) (<= main_n 52)) (or (< 52 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36128#(and (or (< 52 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,553 INFO L273 TraceCheckUtils]: 30: Hoare triple {36128#(and (or (< 52 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 52)))} assume i <= n * 4; {36128#(and (or (< 52 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,554 INFO L273 TraceCheckUtils]: 31: Hoare triple {36128#(and (or (< 52 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36129#(and (or (<= main_i 64) (<= main_n 52)) (or (< 52 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,554 INFO L273 TraceCheckUtils]: 32: Hoare triple {36129#(and (or (<= main_i 64) (<= main_n 52)) (or (< 52 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36129#(and (or (<= main_i 64) (<= main_n 52)) (or (< 52 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,555 INFO L273 TraceCheckUtils]: 33: Hoare triple {36129#(and (or (<= main_i 64) (<= main_n 52)) (or (< 52 main_n) (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36130#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 68)))} is VALID [2018-12-18 18:03:40,556 INFO L273 TraceCheckUtils]: 34: Hoare triple {36130#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 68)))} assume i <= n * 4; {36130#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 68)))} is VALID [2018-12-18 18:03:40,557 INFO L273 TraceCheckUtils]: 35: Hoare triple {36130#(and (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_n 52) (<= main_i 68)))} assume a[i] != 23;i := i + 4; {36131#(and (or (<= main_i 72) (<= main_n 52)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2018-12-18 18:03:40,558 INFO L273 TraceCheckUtils]: 36: Hoare triple {36131#(and (or (<= main_i 72) (<= main_n 52)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36131#(and (or (<= main_i 72) (<= main_n 52)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2018-12-18 18:03:40,559 INFO L273 TraceCheckUtils]: 37: Hoare triple {36131#(and (or (<= main_i 72) (<= main_n 52)) (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36132#(and (or (<= main_i 76) (<= main_n 52)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2018-12-18 18:03:40,560 INFO L273 TraceCheckUtils]: 38: Hoare triple {36132#(and (or (<= main_i 76) (<= main_n 52)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36132#(and (or (<= main_i 76) (<= main_n 52)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2018-12-18 18:03:40,561 INFO L273 TraceCheckUtils]: 39: Hoare triple {36132#(and (or (<= main_i 76) (<= main_n 52)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36133#(and (or (<= main_n 52) (<= main_i 80)) (or (< 52 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,562 INFO L273 TraceCheckUtils]: 40: Hoare triple {36133#(and (or (<= main_n 52) (<= main_i 80)) (or (< 52 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36133#(and (or (<= main_n 52) (<= main_i 80)) (or (< 52 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,563 INFO L273 TraceCheckUtils]: 41: Hoare triple {36133#(and (or (<= main_n 52) (<= main_i 80)) (or (< 52 main_n) (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36134#(and (or (<= main_i 84) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 52 main_n)))} is VALID [2018-12-18 18:03:40,563 INFO L273 TraceCheckUtils]: 42: Hoare triple {36134#(and (or (<= main_i 84) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 52 main_n)))} assume i <= n * 4; {36134#(and (or (<= main_i 84) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 52 main_n)))} is VALID [2018-12-18 18:03:40,564 INFO L273 TraceCheckUtils]: 43: Hoare triple {36134#(and (or (<= main_i 84) (<= main_n 52)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36135#(and (or (< 52 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,565 INFO L273 TraceCheckUtils]: 44: Hoare triple {36135#(and (or (< 52 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 52)))} assume i <= n * 4; {36135#(and (or (< 52 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,566 INFO L273 TraceCheckUtils]: 45: Hoare triple {36135#(and (or (< 52 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36136#(and (or (< 52 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,567 INFO L273 TraceCheckUtils]: 46: Hoare triple {36136#(and (or (< 52 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 52)))} assume i <= n * 4; {36136#(and (or (< 52 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,568 INFO L273 TraceCheckUtils]: 47: Hoare triple {36136#(and (or (< 52 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36137#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 96) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,569 INFO L273 TraceCheckUtils]: 48: Hoare triple {36137#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 96) (<= main_n 52)))} assume i <= n * 4; {36137#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 96) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,570 INFO L273 TraceCheckUtils]: 49: Hoare triple {36137#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 96) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36138#(and (or (<= main_i 100) (<= main_n 52)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2018-12-18 18:03:40,570 INFO L273 TraceCheckUtils]: 50: Hoare triple {36138#(and (or (<= main_i 100) (<= main_n 52)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36138#(and (or (<= main_i 100) (<= main_n 52)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2018-12-18 18:03:40,571 INFO L273 TraceCheckUtils]: 51: Hoare triple {36138#(and (or (<= main_i 100) (<= main_n 52)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36139#(and (or (<= main_i 104) (<= main_n 52)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2018-12-18 18:03:40,572 INFO L273 TraceCheckUtils]: 52: Hoare triple {36139#(and (or (<= main_i 104) (<= main_n 52)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36139#(and (or (<= main_i 104) (<= main_n 52)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2018-12-18 18:03:40,573 INFO L273 TraceCheckUtils]: 53: Hoare triple {36139#(and (or (<= main_i 104) (<= main_n 52)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36140#(and (or (<= main_n 52) (<= main_i 108)) (or (< 52 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,574 INFO L273 TraceCheckUtils]: 54: Hoare triple {36140#(and (or (<= main_n 52) (<= main_i 108)) (or (< 52 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36140#(and (or (<= main_n 52) (<= main_i 108)) (or (< 52 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,575 INFO L273 TraceCheckUtils]: 55: Hoare triple {36140#(and (or (<= main_n 52) (<= main_i 108)) (or (< 52 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36141#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 52) (<= main_i 112)))} is VALID [2018-12-18 18:03:40,576 INFO L273 TraceCheckUtils]: 56: Hoare triple {36141#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 52) (<= main_i 112)))} assume i <= n * 4; {36141#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 52) (<= main_i 112)))} is VALID [2018-12-18 18:03:40,577 INFO L273 TraceCheckUtils]: 57: Hoare triple {36141#(and (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 52) (<= main_i 112)))} assume a[i] != 23;i := i + 4; {36142#(and (or (<= main_i 116) (<= main_n 52)) (or (< 52 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,578 INFO L273 TraceCheckUtils]: 58: Hoare triple {36142#(and (or (<= main_i 116) (<= main_n 52)) (or (< 52 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36142#(and (or (<= main_i 116) (<= main_n 52)) (or (< 52 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,579 INFO L273 TraceCheckUtils]: 59: Hoare triple {36142#(and (or (<= main_i 116) (<= main_n 52)) (or (< 52 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36143#(and (or (<= main_i 120) (<= main_n 52)) (or (< 52 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,579 INFO L273 TraceCheckUtils]: 60: Hoare triple {36143#(and (or (<= main_i 120) (<= main_n 52)) (or (< 52 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36143#(and (or (<= main_i 120) (<= main_n 52)) (or (< 52 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,581 INFO L273 TraceCheckUtils]: 61: Hoare triple {36143#(and (or (<= main_i 120) (<= main_n 52)) (or (< 52 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36144#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 124) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,581 INFO L273 TraceCheckUtils]: 62: Hoare triple {36144#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 124) (<= main_n 52)))} assume i <= n * 4; {36144#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 124) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,582 INFO L273 TraceCheckUtils]: 63: Hoare triple {36144#(and (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 124) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36145#(and (or (<= main_i 128) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2018-12-18 18:03:40,583 INFO L273 TraceCheckUtils]: 64: Hoare triple {36145#(and (or (<= main_i 128) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume i <= n * 4; {36145#(and (or (<= main_i 128) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} is VALID [2018-12-18 18:03:40,584 INFO L273 TraceCheckUtils]: 65: Hoare triple {36145#(and (or (<= main_i 128) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i))))} assume a[i] != 23;i := i + 4; {36146#(and (or (< 52 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,585 INFO L273 TraceCheckUtils]: 66: Hoare triple {36146#(and (or (< 52 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 52)))} assume i <= n * 4; {36146#(and (or (< 52 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,586 INFO L273 TraceCheckUtils]: 67: Hoare triple {36146#(and (or (< 52 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 132) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36147#(and (or (< 52 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,587 INFO L273 TraceCheckUtils]: 68: Hoare triple {36147#(and (or (< 52 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 52)))} assume i <= n * 4; {36147#(and (or (< 52 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,588 INFO L273 TraceCheckUtils]: 69: Hoare triple {36147#(and (or (< 52 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36148#(and (or (<= main_n 52) (<= main_i 140)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} is VALID [2018-12-18 18:03:40,589 INFO L273 TraceCheckUtils]: 70: Hoare triple {36148#(and (or (<= main_n 52) (<= main_i 140)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} assume i <= n * 4; {36148#(and (or (<= main_n 52) (<= main_i 140)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} is VALID [2018-12-18 18:03:40,590 INFO L273 TraceCheckUtils]: 71: Hoare triple {36148#(and (or (<= main_n 52) (<= main_i 140)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} assume a[i] != 23;i := i + 4; {36149#(and (or (<= main_n 52) (<= main_i 144)) (or (< 52 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,590 INFO L273 TraceCheckUtils]: 72: Hoare triple {36149#(and (or (<= main_n 52) (<= main_i 144)) (or (< 52 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36149#(and (or (<= main_n 52) (<= main_i 144)) (or (< 52 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,591 INFO L273 TraceCheckUtils]: 73: Hoare triple {36149#(and (or (<= main_n 52) (<= main_i 144)) (or (< 52 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36150#(and (or (<= main_n 52) (<= main_i 148)) (or (< 52 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,592 INFO L273 TraceCheckUtils]: 74: Hoare triple {36150#(and (or (<= main_n 52) (<= main_i 148)) (or (< 52 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36150#(and (or (<= main_n 52) (<= main_i 148)) (or (< 52 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,593 INFO L273 TraceCheckUtils]: 75: Hoare triple {36150#(and (or (<= main_n 52) (<= main_i 148)) (or (< 52 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36151#(and (or (<= main_n 52) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2018-12-18 18:03:40,594 INFO L273 TraceCheckUtils]: 76: Hoare triple {36151#(and (or (<= main_n 52) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36151#(and (or (<= main_n 52) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2018-12-18 18:03:40,595 INFO L273 TraceCheckUtils]: 77: Hoare triple {36151#(and (or (<= main_n 52) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36152#(and (or (<= main_i 156) (<= main_n 52)) (or (< 52 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,596 INFO L273 TraceCheckUtils]: 78: Hoare triple {36152#(and (or (<= main_i 156) (<= main_n 52)) (or (< 52 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36152#(and (or (<= main_i 156) (<= main_n 52)) (or (< 52 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,597 INFO L273 TraceCheckUtils]: 79: Hoare triple {36152#(and (or (<= main_i 156) (<= main_n 52)) (or (< 52 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36153#(and (or (<= main_n 52) (<= main_i 160)) (or (< 52 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,598 INFO L273 TraceCheckUtils]: 80: Hoare triple {36153#(and (or (<= main_n 52) (<= main_i 160)) (or (< 52 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36153#(and (or (<= main_n 52) (<= main_i 160)) (or (< 52 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,599 INFO L273 TraceCheckUtils]: 81: Hoare triple {36153#(and (or (<= main_n 52) (<= main_i 160)) (or (< 52 main_n) (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36154#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 164) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,599 INFO L273 TraceCheckUtils]: 82: Hoare triple {36154#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 164) (<= main_n 52)))} assume i <= n * 4; {36154#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 164) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,600 INFO L273 TraceCheckUtils]: 83: Hoare triple {36154#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 164) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36155#(and (or (<= main_n 52) (<= main_i 168)) (or (< 52 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,601 INFO L273 TraceCheckUtils]: 84: Hoare triple {36155#(and (or (<= main_n 52) (<= main_i 168)) (or (< 52 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36155#(and (or (<= main_n 52) (<= main_i 168)) (or (< 52 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,602 INFO L273 TraceCheckUtils]: 85: Hoare triple {36155#(and (or (<= main_n 52) (<= main_i 168)) (or (< 52 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36156#(and (or (< 52 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 172) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,603 INFO L273 TraceCheckUtils]: 86: Hoare triple {36156#(and (or (< 52 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 172) (<= main_n 52)))} assume i <= n * 4; {36156#(and (or (< 52 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 172) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,604 INFO L273 TraceCheckUtils]: 87: Hoare triple {36156#(and (or (< 52 main_n) (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 172) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36157#(and (or (<= main_i 176) (<= main_n 52)) (or (< 52 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,605 INFO L273 TraceCheckUtils]: 88: Hoare triple {36157#(and (or (<= main_i 176) (<= main_n 52)) (or (< 52 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36157#(and (or (<= main_i 176) (<= main_n 52)) (or (< 52 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,606 INFO L273 TraceCheckUtils]: 89: Hoare triple {36157#(and (or (<= main_i 176) (<= main_n 52)) (or (< 52 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 52 main_n)) (or (<= main_i 180) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,607 INFO L273 TraceCheckUtils]: 90: Hoare triple {36158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 52 main_n)) (or (<= main_i 180) (<= main_n 52)))} assume i <= n * 4; {36158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 52 main_n)) (or (<= main_i 180) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,608 INFO L273 TraceCheckUtils]: 91: Hoare triple {36158#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 52 main_n)) (or (<= main_i 180) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36159#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 52 main_n)) (or (<= main_i 184) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,608 INFO L273 TraceCheckUtils]: 92: Hoare triple {36159#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 52 main_n)) (or (<= main_i 184) (<= main_n 52)))} assume i <= n * 4; {36159#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 52 main_n)) (or (<= main_i 184) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,610 INFO L273 TraceCheckUtils]: 93: Hoare triple {36159#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 52 main_n)) (or (<= main_i 184) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36160#(and (or (<= main_i 188) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))))} is VALID [2018-12-18 18:03:40,610 INFO L273 TraceCheckUtils]: 94: Hoare triple {36160#(and (or (<= main_i 188) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))))} assume i <= n * 4; {36160#(and (or (<= main_i 188) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))))} is VALID [2018-12-18 18:03:40,611 INFO L273 TraceCheckUtils]: 95: Hoare triple {36160#(and (or (<= main_i 188) (<= main_n 52)) (or (< 52 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i))))} assume a[i] != 23;i := i + 4; {36161#(and (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 192) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,612 INFO L273 TraceCheckUtils]: 96: Hoare triple {36161#(and (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 192) (<= main_n 52)))} assume i <= n * 4; {36161#(and (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 192) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,613 INFO L273 TraceCheckUtils]: 97: Hoare triple {36161#(and (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)) (or (<= main_i 192) (<= main_n 52)))} assume a[i] != 23;i := i + 4; {36162#(and (or (<= main_n 52) (<= main_i 196)) (or (< 52 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,614 INFO L273 TraceCheckUtils]: 98: Hoare triple {36162#(and (or (<= main_n 52) (<= main_i 196)) (or (< 52 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {36162#(and (or (<= main_n 52) (<= main_i 196)) (or (< 52 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:03:40,615 INFO L273 TraceCheckUtils]: 99: Hoare triple {36162#(and (or (<= main_n 52) (<= main_i 196)) (or (< 52 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {36163#(and (or (<= main_n 52) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 52 main_n)))} is VALID [2018-12-18 18:03:40,616 INFO L273 TraceCheckUtils]: 100: Hoare triple {36163#(and (or (<= main_n 52) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 52 main_n)))} assume i <= n * 4; {36163#(and (or (<= main_n 52) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 52 main_n)))} is VALID [2018-12-18 18:03:40,617 INFO L273 TraceCheckUtils]: 101: Hoare triple {36163#(and (or (<= main_n 52) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36164#(and (or (<= main_i 204) (<= main_n 52)) (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2018-12-18 18:03:40,618 INFO L273 TraceCheckUtils]: 102: Hoare triple {36164#(and (or (<= main_i 204) (<= main_n 52)) (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume i <= n * 4; {36164#(and (or (<= main_i 204) (<= main_n 52)) (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} is VALID [2018-12-18 18:03:40,619 INFO L273 TraceCheckUtils]: 103: Hoare triple {36164#(and (or (<= main_i 204) (<= main_n 52)) (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 52 main_n)))} assume a[i] != 23;i := i + 4; {36165#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 52 main_n)) (or (<= main_i 208) (<= main_n 52)))} is VALID [2018-12-18 18:03:40,620 INFO L273 TraceCheckUtils]: 104: Hoare triple {36165#(and (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 52 main_n)) (or (<= main_i 208) (<= main_n 52)))} assume i <= n * 4; {36166#(and (<= main_i 208) (or (< 52 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2018-12-18 18:03:40,621 INFO L273 TraceCheckUtils]: 105: Hoare triple {36166#(and (<= main_i 208) (or (< 52 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {36167#(and (<= main_i 212) (<= 53 main_n))} is VALID [2018-12-18 18:03:40,621 INFO L273 TraceCheckUtils]: 106: Hoare triple {36167#(and (<= main_i 212) (<= 53 main_n))} assume !(i <= n * 4); {36112#false} is VALID [2018-12-18 18:03:40,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2756 backedges. 0 proven. 2756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:03:40,676 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 18:03:40,677 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 18:03:40,677 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 18:03:40,677 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 18:03:40,677 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 18:03:40,677 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 18:03:40,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 18:03:40,685 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-18 18:03:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 18:03:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 18:03:40,734 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 18:03:40,753 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 18:03:40,756 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 18:03:40,765 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 18:03:40,765 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 18:03:40,767 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 18:03:40,767 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_56]. (and (= (store v_main_a_56 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 18:03:40,767 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 18:03:45,156 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 18:03:45,158 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 18:03:45,164 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 18:03:45,164 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 18:03:45,167 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 18:03:45,167 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= (select main_a 208) 23)) (<= main_i 212) (= 23 (select main_a .cse0)) (<= 208 .cse0))) [2018-12-18 18:03:45,167 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 208 .cse0)) (<= main_i 212) (<= 208 .cse0))) [2018-12-18 18:03:45,233 INFO L273 TraceCheckUtils]: 0: Hoare triple {36111#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {36171#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,234 INFO L273 TraceCheckUtils]: 1: Hoare triple {36171#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36175#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 18:03:45,234 INFO L273 TraceCheckUtils]: 2: Hoare triple {36175#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {36175#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 18:03:45,235 INFO L273 TraceCheckUtils]: 3: Hoare triple {36175#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {36182#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,235 INFO L273 TraceCheckUtils]: 4: Hoare triple {36182#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36182#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,236 INFO L273 TraceCheckUtils]: 5: Hoare triple {36182#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36189#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 18:03:45,237 INFO L273 TraceCheckUtils]: 6: Hoare triple {36189#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {36189#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 18:03:45,238 INFO L273 TraceCheckUtils]: 7: Hoare triple {36189#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {36196#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,238 INFO L273 TraceCheckUtils]: 8: Hoare triple {36196#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36196#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,239 INFO L273 TraceCheckUtils]: 9: Hoare triple {36196#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36203#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,240 INFO L273 TraceCheckUtils]: 10: Hoare triple {36203#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36203#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,240 INFO L273 TraceCheckUtils]: 11: Hoare triple {36203#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36210#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,241 INFO L273 TraceCheckUtils]: 12: Hoare triple {36210#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36210#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,242 INFO L273 TraceCheckUtils]: 13: Hoare triple {36210#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36217#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,242 INFO L273 TraceCheckUtils]: 14: Hoare triple {36217#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36217#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,243 INFO L273 TraceCheckUtils]: 15: Hoare triple {36217#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36224#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,244 INFO L273 TraceCheckUtils]: 16: Hoare triple {36224#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36224#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,244 INFO L273 TraceCheckUtils]: 17: Hoare triple {36224#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36231#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,245 INFO L273 TraceCheckUtils]: 18: Hoare triple {36231#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36231#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,246 INFO L273 TraceCheckUtils]: 19: Hoare triple {36231#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36238#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,246 INFO L273 TraceCheckUtils]: 20: Hoare triple {36238#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36238#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,247 INFO L273 TraceCheckUtils]: 21: Hoare triple {36238#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36245#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,248 INFO L273 TraceCheckUtils]: 22: Hoare triple {36245#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36245#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,248 INFO L273 TraceCheckUtils]: 23: Hoare triple {36245#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36252#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,249 INFO L273 TraceCheckUtils]: 24: Hoare triple {36252#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36252#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,250 INFO L273 TraceCheckUtils]: 25: Hoare triple {36252#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36259#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,250 INFO L273 TraceCheckUtils]: 26: Hoare triple {36259#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36259#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,251 INFO L273 TraceCheckUtils]: 27: Hoare triple {36259#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36266#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,252 INFO L273 TraceCheckUtils]: 28: Hoare triple {36266#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36266#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,252 INFO L273 TraceCheckUtils]: 29: Hoare triple {36266#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36273#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,253 INFO L273 TraceCheckUtils]: 30: Hoare triple {36273#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36273#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,254 INFO L273 TraceCheckUtils]: 31: Hoare triple {36273#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36280#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,254 INFO L273 TraceCheckUtils]: 32: Hoare triple {36280#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36280#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,255 INFO L273 TraceCheckUtils]: 33: Hoare triple {36280#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36287#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,256 INFO L273 TraceCheckUtils]: 34: Hoare triple {36287#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36287#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,256 INFO L273 TraceCheckUtils]: 35: Hoare triple {36287#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36294#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,257 INFO L273 TraceCheckUtils]: 36: Hoare triple {36294#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36294#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,258 INFO L273 TraceCheckUtils]: 37: Hoare triple {36294#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36301#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,258 INFO L273 TraceCheckUtils]: 38: Hoare triple {36301#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36301#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,259 INFO L273 TraceCheckUtils]: 39: Hoare triple {36301#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36308#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 18:03:45,260 INFO L273 TraceCheckUtils]: 40: Hoare triple {36308#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {36308#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 18:03:45,260 INFO L273 TraceCheckUtils]: 41: Hoare triple {36308#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {36315#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,261 INFO L273 TraceCheckUtils]: 42: Hoare triple {36315#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36315#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,262 INFO L273 TraceCheckUtils]: 43: Hoare triple {36315#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36322#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,262 INFO L273 TraceCheckUtils]: 44: Hoare triple {36322#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36322#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,263 INFO L273 TraceCheckUtils]: 45: Hoare triple {36322#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36329#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,264 INFO L273 TraceCheckUtils]: 46: Hoare triple {36329#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36329#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,264 INFO L273 TraceCheckUtils]: 47: Hoare triple {36329#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36336#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,265 INFO L273 TraceCheckUtils]: 48: Hoare triple {36336#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36336#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,266 INFO L273 TraceCheckUtils]: 49: Hoare triple {36336#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36343#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,266 INFO L273 TraceCheckUtils]: 50: Hoare triple {36343#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36343#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,267 INFO L273 TraceCheckUtils]: 51: Hoare triple {36343#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36350#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,268 INFO L273 TraceCheckUtils]: 52: Hoare triple {36350#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36350#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,268 INFO L273 TraceCheckUtils]: 53: Hoare triple {36350#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36357#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,269 INFO L273 TraceCheckUtils]: 54: Hoare triple {36357#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36357#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,270 INFO L273 TraceCheckUtils]: 55: Hoare triple {36357#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36364#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,270 INFO L273 TraceCheckUtils]: 56: Hoare triple {36364#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36364#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,271 INFO L273 TraceCheckUtils]: 57: Hoare triple {36364#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36371#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,272 INFO L273 TraceCheckUtils]: 58: Hoare triple {36371#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36371#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,272 INFO L273 TraceCheckUtils]: 59: Hoare triple {36371#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36378#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,273 INFO L273 TraceCheckUtils]: 60: Hoare triple {36378#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36378#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,274 INFO L273 TraceCheckUtils]: 61: Hoare triple {36378#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36385#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,274 INFO L273 TraceCheckUtils]: 62: Hoare triple {36385#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36385#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,275 INFO L273 TraceCheckUtils]: 63: Hoare triple {36385#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36392#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,276 INFO L273 TraceCheckUtils]: 64: Hoare triple {36392#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36392#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,277 INFO L273 TraceCheckUtils]: 65: Hoare triple {36392#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36399#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,277 INFO L273 TraceCheckUtils]: 66: Hoare triple {36399#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36399#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,278 INFO L273 TraceCheckUtils]: 67: Hoare triple {36399#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36406#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,279 INFO L273 TraceCheckUtils]: 68: Hoare triple {36406#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36406#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,279 INFO L273 TraceCheckUtils]: 69: Hoare triple {36406#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36413#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 18:03:45,280 INFO L273 TraceCheckUtils]: 70: Hoare triple {36413#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {36413#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 18:03:45,281 INFO L273 TraceCheckUtils]: 71: Hoare triple {36413#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {36420#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,282 INFO L273 TraceCheckUtils]: 72: Hoare triple {36420#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36420#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,282 INFO L273 TraceCheckUtils]: 73: Hoare triple {36420#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36427#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,283 INFO L273 TraceCheckUtils]: 74: Hoare triple {36427#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36427#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,284 INFO L273 TraceCheckUtils]: 75: Hoare triple {36427#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36434#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,284 INFO L273 TraceCheckUtils]: 76: Hoare triple {36434#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36434#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,285 INFO L273 TraceCheckUtils]: 77: Hoare triple {36434#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36441#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,286 INFO L273 TraceCheckUtils]: 78: Hoare triple {36441#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36441#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,286 INFO L273 TraceCheckUtils]: 79: Hoare triple {36441#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36448#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,287 INFO L273 TraceCheckUtils]: 80: Hoare triple {36448#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36448#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,288 INFO L273 TraceCheckUtils]: 81: Hoare triple {36448#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36455#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 18:03:45,288 INFO L273 TraceCheckUtils]: 82: Hoare triple {36455#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {36455#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 18:03:45,289 INFO L273 TraceCheckUtils]: 83: Hoare triple {36455#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {36462#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,290 INFO L273 TraceCheckUtils]: 84: Hoare triple {36462#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36462#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,290 INFO L273 TraceCheckUtils]: 85: Hoare triple {36462#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36469#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,291 INFO L273 TraceCheckUtils]: 86: Hoare triple {36469#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36469#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,292 INFO L273 TraceCheckUtils]: 87: Hoare triple {36469#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36476#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,292 INFO L273 TraceCheckUtils]: 88: Hoare triple {36476#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36476#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,293 INFO L273 TraceCheckUtils]: 89: Hoare triple {36476#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36483#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,294 INFO L273 TraceCheckUtils]: 90: Hoare triple {36483#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36483#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,294 INFO L273 TraceCheckUtils]: 91: Hoare triple {36483#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36490#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,295 INFO L273 TraceCheckUtils]: 92: Hoare triple {36490#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36490#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,296 INFO L273 TraceCheckUtils]: 93: Hoare triple {36490#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36497#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,296 INFO L273 TraceCheckUtils]: 94: Hoare triple {36497#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36497#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,297 INFO L273 TraceCheckUtils]: 95: Hoare triple {36497#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36504#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,298 INFO L273 TraceCheckUtils]: 96: Hoare triple {36504#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36504#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,298 INFO L273 TraceCheckUtils]: 97: Hoare triple {36504#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36511#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,299 INFO L273 TraceCheckUtils]: 98: Hoare triple {36511#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36511#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,300 INFO L273 TraceCheckUtils]: 99: Hoare triple {36511#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36518#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,300 INFO L273 TraceCheckUtils]: 100: Hoare triple {36518#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36518#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,301 INFO L273 TraceCheckUtils]: 101: Hoare triple {36518#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36525#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,302 INFO L273 TraceCheckUtils]: 102: Hoare triple {36525#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36525#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,302 INFO L273 TraceCheckUtils]: 103: Hoare triple {36525#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36532#(and (= main_i 208) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,303 INFO L273 TraceCheckUtils]: 104: Hoare triple {36532#(and (= main_i 208) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {36536#(and (= main_i 208) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:03:45,304 INFO L273 TraceCheckUtils]: 105: Hoare triple {36536#(and (= main_i 208) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {36167#(and (<= main_i 212) (<= 53 main_n))} is VALID [2018-12-18 18:03:45,305 INFO L273 TraceCheckUtils]: 106: Hoare triple {36167#(and (<= main_i 212) (<= 53 main_n))} assume !(i <= n * 4); {36112#false} is VALID [2018-12-18 18:03:45,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2756 backedges. 0 proven. 2756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:03:45,331 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 18:03:53,403 INFO L273 TraceCheckUtils]: 106: Hoare triple {36543#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {36112#false} is VALID [2018-12-18 18:03:53,404 INFO L273 TraceCheckUtils]: 105: Hoare triple {36547#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {36543#(<= main_i (* 4 main_n))} is VALID [2018-12-18 18:03:53,404 INFO L273 TraceCheckUtils]: 104: Hoare triple {36551#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {36547#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 18:03:53,405 INFO L273 TraceCheckUtils]: 103: Hoare triple {36555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {36551#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 18:03:53,405 INFO L273 TraceCheckUtils]: 102: Hoare triple {36555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {36555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 18:03:53,406 INFO L273 TraceCheckUtils]: 101: Hoare triple {36562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {36555#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 18:03:53,406 INFO L273 TraceCheckUtils]: 100: Hoare triple {36562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {36562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 18:03:53,408 INFO L273 TraceCheckUtils]: 99: Hoare triple {36569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {36562#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 18:03:53,408 INFO L273 TraceCheckUtils]: 98: Hoare triple {36569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {36569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 18:03:53,409 INFO L273 TraceCheckUtils]: 97: Hoare triple {36576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {36569#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 18:03:53,410 INFO L273 TraceCheckUtils]: 96: Hoare triple {36576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {36576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 18:03:53,411 INFO L273 TraceCheckUtils]: 95: Hoare triple {36583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36576#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 18:03:53,411 INFO L273 TraceCheckUtils]: 94: Hoare triple {36583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {36583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,412 INFO L273 TraceCheckUtils]: 93: Hoare triple {36590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {36583#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,413 INFO L273 TraceCheckUtils]: 92: Hoare triple {36590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {36590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 18:03:53,414 INFO L273 TraceCheckUtils]: 91: Hoare triple {36597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36590#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 18:03:53,414 INFO L273 TraceCheckUtils]: 90: Hoare triple {36597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {36597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,415 INFO L273 TraceCheckUtils]: 89: Hoare triple {36604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36597#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,416 INFO L273 TraceCheckUtils]: 88: Hoare triple {36604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {36604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,417 INFO L273 TraceCheckUtils]: 87: Hoare triple {36611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36604#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,417 INFO L273 TraceCheckUtils]: 86: Hoare triple {36611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {36611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,418 INFO L273 TraceCheckUtils]: 85: Hoare triple {36618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {36611#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,419 INFO L273 TraceCheckUtils]: 84: Hoare triple {36618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {36618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 18:03:53,420 INFO L273 TraceCheckUtils]: 83: Hoare triple {36625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36618#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 18:03:53,421 INFO L273 TraceCheckUtils]: 82: Hoare triple {36625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {36625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,422 INFO L273 TraceCheckUtils]: 81: Hoare triple {36632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36625#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,422 INFO L273 TraceCheckUtils]: 80: Hoare triple {36632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {36632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,423 INFO L273 TraceCheckUtils]: 79: Hoare triple {36639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {36632#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,424 INFO L273 TraceCheckUtils]: 78: Hoare triple {36639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {36639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 18:03:53,425 INFO L273 TraceCheckUtils]: 77: Hoare triple {36646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36639#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 18:03:53,425 INFO L273 TraceCheckUtils]: 76: Hoare triple {36646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {36646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,426 INFO L273 TraceCheckUtils]: 75: Hoare triple {36653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {36646#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,427 INFO L273 TraceCheckUtils]: 74: Hoare triple {36653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {36653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 18:03:53,428 INFO L273 TraceCheckUtils]: 73: Hoare triple {36660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {36653#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 18:03:53,428 INFO L273 TraceCheckUtils]: 72: Hoare triple {36660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {36660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 18:03:53,429 INFO L273 TraceCheckUtils]: 71: Hoare triple {36667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {36660#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 18:03:53,430 INFO L273 TraceCheckUtils]: 70: Hoare triple {36667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {36667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 18:03:53,431 INFO L273 TraceCheckUtils]: 69: Hoare triple {36674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {36667#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 18:03:53,431 INFO L273 TraceCheckUtils]: 68: Hoare triple {36674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {36674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 18:03:53,432 INFO L273 TraceCheckUtils]: 67: Hoare triple {36681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {36674#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 18:03:53,433 INFO L273 TraceCheckUtils]: 66: Hoare triple {36681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {36681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 18:03:53,434 INFO L273 TraceCheckUtils]: 65: Hoare triple {36688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {36681#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 18:03:53,435 INFO L273 TraceCheckUtils]: 64: Hoare triple {36688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {36688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 18:03:53,436 INFO L273 TraceCheckUtils]: 63: Hoare triple {36695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36688#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 18:03:53,436 INFO L273 TraceCheckUtils]: 62: Hoare triple {36695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {36695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,437 INFO L273 TraceCheckUtils]: 61: Hoare triple {36702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36695#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,438 INFO L273 TraceCheckUtils]: 60: Hoare triple {36702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {36702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,439 INFO L273 TraceCheckUtils]: 59: Hoare triple {36709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36702#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,439 INFO L273 TraceCheckUtils]: 58: Hoare triple {36709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {36709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,440 INFO L273 TraceCheckUtils]: 57: Hoare triple {36716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {36709#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,441 INFO L273 TraceCheckUtils]: 56: Hoare triple {36716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {36716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 18:03:53,442 INFO L273 TraceCheckUtils]: 55: Hoare triple {36723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36716#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 18:03:53,442 INFO L273 TraceCheckUtils]: 54: Hoare triple {36723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {36723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,443 INFO L273 TraceCheckUtils]: 53: Hoare triple {36730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {36723#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,444 INFO L273 TraceCheckUtils]: 52: Hoare triple {36730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {36730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 18:03:53,445 INFO L273 TraceCheckUtils]: 51: Hoare triple {36737#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {36730#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 18:03:53,445 INFO L273 TraceCheckUtils]: 50: Hoare triple {36737#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {36737#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 18:03:53,446 INFO L273 TraceCheckUtils]: 49: Hoare triple {36744#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {36737#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 18:03:53,447 INFO L273 TraceCheckUtils]: 48: Hoare triple {36744#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {36744#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 18:03:53,448 INFO L273 TraceCheckUtils]: 47: Hoare triple {36751#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36744#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 18:03:53,449 INFO L273 TraceCheckUtils]: 46: Hoare triple {36751#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {36751#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,450 INFO L273 TraceCheckUtils]: 45: Hoare triple {36758#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36751#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,450 INFO L273 TraceCheckUtils]: 44: Hoare triple {36758#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {36758#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,451 INFO L273 TraceCheckUtils]: 43: Hoare triple {36765#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {36758#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,452 INFO L273 TraceCheckUtils]: 42: Hoare triple {36765#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {36765#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 18:03:53,453 INFO L273 TraceCheckUtils]: 41: Hoare triple {36772#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36765#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 18:03:53,453 INFO L273 TraceCheckUtils]: 40: Hoare triple {36772#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {36772#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,454 INFO L273 TraceCheckUtils]: 39: Hoare triple {36779#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {36772#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,455 INFO L273 TraceCheckUtils]: 38: Hoare triple {36779#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {36779#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 18:03:53,456 INFO L273 TraceCheckUtils]: 37: Hoare triple {36786#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {36779#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 18:03:53,456 INFO L273 TraceCheckUtils]: 36: Hoare triple {36786#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {36786#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 18:03:53,457 INFO L273 TraceCheckUtils]: 35: Hoare triple {36793#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {36786#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 18:03:53,458 INFO L273 TraceCheckUtils]: 34: Hoare triple {36793#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {36793#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 18:03:53,459 INFO L273 TraceCheckUtils]: 33: Hoare triple {36800#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {36793#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 18:03:53,459 INFO L273 TraceCheckUtils]: 32: Hoare triple {36800#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {36800#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 18:03:53,460 INFO L273 TraceCheckUtils]: 31: Hoare triple {36807#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {36800#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 18:03:53,461 INFO L273 TraceCheckUtils]: 30: Hoare triple {36807#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {36807#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 18:03:53,462 INFO L273 TraceCheckUtils]: 29: Hoare triple {36814#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {36807#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 18:03:53,463 INFO L273 TraceCheckUtils]: 28: Hoare triple {36814#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {36814#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 18:03:53,464 INFO L273 TraceCheckUtils]: 27: Hoare triple {36821#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {36814#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 18:03:53,464 INFO L273 TraceCheckUtils]: 26: Hoare triple {36821#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {36821#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 18:03:53,465 INFO L273 TraceCheckUtils]: 25: Hoare triple {36828#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {36821#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 18:03:53,466 INFO L273 TraceCheckUtils]: 24: Hoare triple {36828#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {36828#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 18:03:53,467 INFO L273 TraceCheckUtils]: 23: Hoare triple {36835#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {36828#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 18:03:53,467 INFO L273 TraceCheckUtils]: 22: Hoare triple {36835#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {36835#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 18:03:53,468 INFO L273 TraceCheckUtils]: 21: Hoare triple {36842#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36835#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 18:03:53,469 INFO L273 TraceCheckUtils]: 20: Hoare triple {36842#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {36842#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,470 INFO L273 TraceCheckUtils]: 19: Hoare triple {36849#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {36842#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,470 INFO L273 TraceCheckUtils]: 18: Hoare triple {36849#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {36849#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,471 INFO L273 TraceCheckUtils]: 17: Hoare triple {36856#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {36849#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2018-12-18 18:03:53,472 INFO L273 TraceCheckUtils]: 16: Hoare triple {36856#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {36856#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2018-12-18 18:03:53,473 INFO L273 TraceCheckUtils]: 15: Hoare triple {36863#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {36856#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2018-12-18 18:03:53,474 INFO L273 TraceCheckUtils]: 14: Hoare triple {36863#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {36863#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2018-12-18 18:03:53,475 INFO L273 TraceCheckUtils]: 13: Hoare triple {36870#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {36863#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2018-12-18 18:03:53,475 INFO L273 TraceCheckUtils]: 12: Hoare triple {36870#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume i <= n * 4; {36870#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2018-12-18 18:03:53,477 INFO L273 TraceCheckUtils]: 11: Hoare triple {36877#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume a[i] != 23;i := i + 4; {36870#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2018-12-18 18:03:53,477 INFO L273 TraceCheckUtils]: 10: Hoare triple {36877#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume i <= n * 4; {36877#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2018-12-18 18:03:53,478 INFO L273 TraceCheckUtils]: 9: Hoare triple {36884#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume a[i] != 23;i := i + 4; {36877#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2018-12-18 18:03:53,479 INFO L273 TraceCheckUtils]: 8: Hoare triple {36884#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume i <= n * 4; {36884#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2018-12-18 18:03:53,480 INFO L273 TraceCheckUtils]: 7: Hoare triple {36891#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume a[i] != 23;i := i + 4; {36884#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2018-12-18 18:03:53,480 INFO L273 TraceCheckUtils]: 6: Hoare triple {36891#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume i <= n * 4; {36891#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2018-12-18 18:03:53,481 INFO L273 TraceCheckUtils]: 5: Hoare triple {36898#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} assume a[i] != 23;i := i + 4; {36891#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2018-12-18 18:03:53,482 INFO L273 TraceCheckUtils]: 4: Hoare triple {36898#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} assume i <= n * 4; {36898#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} is VALID [2018-12-18 18:03:53,483 INFO L273 TraceCheckUtils]: 3: Hoare triple {36905#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} assume a[i] != 23;i := i + 4; {36898#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} is VALID [2018-12-18 18:03:53,484 INFO L273 TraceCheckUtils]: 2: Hoare triple {36905#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} assume i <= n * 4; {36905#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} is VALID [2018-12-18 18:03:53,485 INFO L273 TraceCheckUtils]: 1: Hoare triple {36912#(or (= (select main_a (+ main_i 208)) 23) (< (+ main_i 211) (* 4 main_n)) (< (* 4 main_n) (+ main_i 208)))} assume a[i] != 23;i := i + 4; {36905#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} is VALID [2018-12-18 18:03:53,485 INFO L273 TraceCheckUtils]: 0: Hoare triple {36111#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {36912#(or (= (select main_a (+ main_i 208)) 23) (< (+ main_i 211) (* 4 main_n)) (< (* 4 main_n) (+ main_i 208)))} is VALID [2018-12-18 18:03:53,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2756 backedges. 0 proven. 2756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:03:53,550 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 18:03:53,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55, 55] total 164 [2018-12-18 18:03:53,551 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 18:03:53,551 INFO L78 Accepts]: Start accepts. Automaton has 111 states. Word has length 107 [2018-12-18 18:03:53,551 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 18:03:53,551 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 111 states. [2018-12-18 18:03:53,812 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 213 edges. 213 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 18:03:53,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 111 states [2018-12-18 18:03:53,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2018-12-18 18:03:53,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3308, Invalid=24082, Unknown=0, NotChecked=0, Total=27390 [2018-12-18 18:03:53,814 INFO L87 Difference]: Start difference. First operand 108 states and 108 transitions. Second operand 111 states. [2018-12-18 18:04:08,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:04:08,633 INFO L93 Difference]: Finished difference Result 112 states and 112 transitions. [2018-12-18 18:04:08,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-12-18 18:04:08,633 INFO L78 Accepts]: Start accepts. Automaton has 111 states. Word has length 107 [2018-12-18 18:04:08,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 18:04:08,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-12-18 18:04:08,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 112 transitions. [2018-12-18 18:04:08,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-12-18 18:04:08,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 112 transitions. [2018-12-18 18:04:08,634 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 57 states and 112 transitions. [2018-12-18 18:04:08,756 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 112 edges. 112 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 18:04:08,758 INFO L225 Difference]: With dead ends: 112 [2018-12-18 18:04:08,759 INFO L226 Difference]: Without dead ends: 111 [2018-12-18 18:04:08,760 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6156 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=3308, Invalid=24082, Unknown=0, NotChecked=0, Total=27390 [2018-12-18 18:04:08,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-12-18 18:04:08,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2018-12-18 18:04:08,878 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 18:04:08,878 INFO L82 GeneralOperation]: Start isEquivalent. First operand 111 states. Second operand 110 states. [2018-12-18 18:04:08,878 INFO L74 IsIncluded]: Start isIncluded. First operand 111 states. Second operand 110 states. [2018-12-18 18:04:08,879 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 110 states. [2018-12-18 18:04:08,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:04:08,881 INFO L93 Difference]: Finished difference Result 111 states and 111 transitions. [2018-12-18 18:04:08,881 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2018-12-18 18:04:08,881 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 18:04:08,881 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 18:04:08,881 INFO L74 IsIncluded]: Start isIncluded. First operand 110 states. Second operand 111 states. [2018-12-18 18:04:08,881 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 111 states. [2018-12-18 18:04:08,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:04:08,883 INFO L93 Difference]: Finished difference Result 111 states and 111 transitions. [2018-12-18 18:04:08,883 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2018-12-18 18:04:08,883 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 18:04:08,883 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 18:04:08,883 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 18:04:08,883 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 18:04:08,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-12-18 18:04:08,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 110 transitions. [2018-12-18 18:04:08,885 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 110 transitions. Word has length 107 [2018-12-18 18:04:08,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 18:04:08,885 INFO L480 AbstractCegarLoop]: Abstraction has 110 states and 110 transitions. [2018-12-18 18:04:08,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has 111 states. [2018-12-18 18:04:08,885 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 110 transitions. [2018-12-18 18:04:08,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-12-18 18:04:08,886 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 18:04:08,886 INFO L402 BasicCegarLoop]: trace histogram [54, 53, 1, 1] [2018-12-18 18:04:08,886 INFO L423 AbstractCegarLoop]: === Iteration 54 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 18:04:08,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 18:04:08,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1628127862, now seen corresponding path program 53 times [2018-12-18 18:04:08,887 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 18:04:08,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 18:04:08,887 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 18:04:08,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 18:04:08,887 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 18:04:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 18:04:12,250 INFO L273 TraceCheckUtils]: 0: Hoare triple {37468#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {37470#(and (or (<= main_n 53) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,251 INFO L273 TraceCheckUtils]: 1: Hoare triple {37470#(and (or (<= main_n 53) (<= main_i 0)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37471#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 4)))} is VALID [2018-12-18 18:04:12,252 INFO L273 TraceCheckUtils]: 2: Hoare triple {37471#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 4)))} assume i <= n * 4; {37471#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 4)))} is VALID [2018-12-18 18:04:12,253 INFO L273 TraceCheckUtils]: 3: Hoare triple {37471#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 4)))} assume a[i] != 23;i := i + 4; {37472#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 8) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,254 INFO L273 TraceCheckUtils]: 4: Hoare triple {37472#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 8) (<= main_n 53)))} assume i <= n * 4; {37472#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 8) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,255 INFO L273 TraceCheckUtils]: 5: Hoare triple {37472#(and (or (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 8) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37473#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 12)))} is VALID [2018-12-18 18:04:12,256 INFO L273 TraceCheckUtils]: 6: Hoare triple {37473#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 12)))} assume i <= n * 4; {37473#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 12)))} is VALID [2018-12-18 18:04:12,257 INFO L273 TraceCheckUtils]: 7: Hoare triple {37473#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {37474#(and (or (<= main_n 53) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,258 INFO L273 TraceCheckUtils]: 8: Hoare triple {37474#(and (or (<= main_n 53) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37474#(and (or (<= main_n 53) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,259 INFO L273 TraceCheckUtils]: 9: Hoare triple {37474#(and (or (<= main_n 53) (<= main_i 16)) (or (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37475#(and (or (<= main_n 53) (<= main_i 20)) (or (< 53 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:12,260 INFO L273 TraceCheckUtils]: 10: Hoare triple {37475#(and (or (<= main_n 53) (<= main_i 20)) (or (< 53 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {37475#(and (or (<= main_n 53) (<= main_i 20)) (or (< 53 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:12,261 INFO L273 TraceCheckUtils]: 11: Hoare triple {37475#(and (or (<= main_n 53) (<= main_i 20)) (or (< 53 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {37476#(and (or (<= main_n 53) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,262 INFO L273 TraceCheckUtils]: 12: Hoare triple {37476#(and (or (<= main_n 53) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37476#(and (or (<= main_n 53) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,263 INFO L273 TraceCheckUtils]: 13: Hoare triple {37476#(and (or (<= main_n 53) (<= main_i 24)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37477#(and (or (<= main_n 53) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,263 INFO L273 TraceCheckUtils]: 14: Hoare triple {37477#(and (or (<= main_n 53) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37477#(and (or (<= main_n 53) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,265 INFO L273 TraceCheckUtils]: 15: Hoare triple {37477#(and (or (<= main_n 53) (<= main_i 28)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37478#(and (or (<= main_i 32) (<= main_n 53)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,265 INFO L273 TraceCheckUtils]: 16: Hoare triple {37478#(and (or (<= main_i 32) (<= main_n 53)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37478#(and (or (<= main_i 32) (<= main_n 53)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,266 INFO L273 TraceCheckUtils]: 17: Hoare triple {37478#(and (or (<= main_i 32) (<= main_n 53)) (or (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37479#(and (or (<= main_i 36) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,267 INFO L273 TraceCheckUtils]: 18: Hoare triple {37479#(and (or (<= main_i 36) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 53 main_n)))} assume i <= n * 4; {37479#(and (or (<= main_i 36) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,268 INFO L273 TraceCheckUtils]: 19: Hoare triple {37479#(and (or (<= main_i 36) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37480#(and (or (<= main_i 40) (<= main_n 53)) (or (< 53 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:12,269 INFO L273 TraceCheckUtils]: 20: Hoare triple {37480#(and (or (<= main_i 40) (<= main_n 53)) (or (< 53 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {37480#(and (or (<= main_i 40) (<= main_n 53)) (or (< 53 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:12,270 INFO L273 TraceCheckUtils]: 21: Hoare triple {37480#(and (or (<= main_i 40) (<= main_n 53)) (or (< 53 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {37481#(and (or (<= main_n 53) (<= main_i 44)) (or (< 53 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:12,271 INFO L273 TraceCheckUtils]: 22: Hoare triple {37481#(and (or (<= main_n 53) (<= main_i 44)) (or (< 53 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {37481#(and (or (<= main_n 53) (<= main_i 44)) (or (< 53 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:12,272 INFO L273 TraceCheckUtils]: 23: Hoare triple {37481#(and (or (<= main_n 53) (<= main_i 44)) (or (< 53 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {37482#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 48)))} is VALID [2018-12-18 18:04:12,273 INFO L273 TraceCheckUtils]: 24: Hoare triple {37482#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 48)))} assume i <= n * 4; {37482#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 48)))} is VALID [2018-12-18 18:04:12,274 INFO L273 TraceCheckUtils]: 25: Hoare triple {37482#(and (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 48)))} assume a[i] != 23;i := i + 4; {37483#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 52) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,275 INFO L273 TraceCheckUtils]: 26: Hoare triple {37483#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 52) (<= main_n 53)))} assume i <= n * 4; {37483#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 52) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,276 INFO L273 TraceCheckUtils]: 27: Hoare triple {37483#(and (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 52) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37484#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 56)))} is VALID [2018-12-18 18:04:12,277 INFO L273 TraceCheckUtils]: 28: Hoare triple {37484#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 56)))} assume i <= n * 4; {37484#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 56)))} is VALID [2018-12-18 18:04:12,278 INFO L273 TraceCheckUtils]: 29: Hoare triple {37484#(and (or (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 56)))} assume a[i] != 23;i := i + 4; {37485#(and (or (<= main_n 53) (<= main_i 60)) (or (< 53 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:12,279 INFO L273 TraceCheckUtils]: 30: Hoare triple {37485#(and (or (<= main_n 53) (<= main_i 60)) (or (< 53 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {37485#(and (or (<= main_n 53) (<= main_i 60)) (or (< 53 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:12,280 INFO L273 TraceCheckUtils]: 31: Hoare triple {37485#(and (or (<= main_n 53) (<= main_i 60)) (or (< 53 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {37486#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 64) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,281 INFO L273 TraceCheckUtils]: 32: Hoare triple {37486#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 64) (<= main_n 53)))} assume i <= n * 4; {37486#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 64) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,282 INFO L273 TraceCheckUtils]: 33: Hoare triple {37486#(and (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 64) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37487#(and (or (<= main_n 53) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,282 INFO L273 TraceCheckUtils]: 34: Hoare triple {37487#(and (or (<= main_n 53) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37487#(and (or (<= main_n 53) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,284 INFO L273 TraceCheckUtils]: 35: Hoare triple {37487#(and (or (<= main_n 53) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37488#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 72)))} is VALID [2018-12-18 18:04:12,284 INFO L273 TraceCheckUtils]: 36: Hoare triple {37488#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 72)))} assume i <= n * 4; {37488#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 72)))} is VALID [2018-12-18 18:04:12,286 INFO L273 TraceCheckUtils]: 37: Hoare triple {37488#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 72)))} assume a[i] != 23;i := i + 4; {37489#(and (or (<= main_i 76) (<= main_n 53)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,286 INFO L273 TraceCheckUtils]: 38: Hoare triple {37489#(and (or (<= main_i 76) (<= main_n 53)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37489#(and (or (<= main_i 76) (<= main_n 53)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,288 INFO L273 TraceCheckUtils]: 39: Hoare triple {37489#(and (or (<= main_i 76) (<= main_n 53)) (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37490#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 80)))} is VALID [2018-12-18 18:04:12,289 INFO L273 TraceCheckUtils]: 40: Hoare triple {37490#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 80)))} assume i <= n * 4; {37490#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 80)))} is VALID [2018-12-18 18:04:12,290 INFO L273 TraceCheckUtils]: 41: Hoare triple {37490#(and (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 80)))} assume a[i] != 23;i := i + 4; {37491#(and (or (<= main_i 84) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,291 INFO L273 TraceCheckUtils]: 42: Hoare triple {37491#(and (or (<= main_i 84) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 53 main_n)))} assume i <= n * 4; {37491#(and (or (<= main_i 84) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,292 INFO L273 TraceCheckUtils]: 43: Hoare triple {37491#(and (or (<= main_i 84) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37492#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 88) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,293 INFO L273 TraceCheckUtils]: 44: Hoare triple {37492#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 88) (<= main_n 53)))} assume i <= n * 4; {37492#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 88) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,294 INFO L273 TraceCheckUtils]: 45: Hoare triple {37492#(and (or (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 88) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37493#(and (or (< 53 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,295 INFO L273 TraceCheckUtils]: 46: Hoare triple {37493#(and (or (< 53 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 53)))} assume i <= n * 4; {37493#(and (or (< 53 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,296 INFO L273 TraceCheckUtils]: 47: Hoare triple {37493#(and (or (< 53 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 92) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37494#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 96) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,297 INFO L273 TraceCheckUtils]: 48: Hoare triple {37494#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 96) (<= main_n 53)))} assume i <= n * 4; {37494#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 96) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,298 INFO L273 TraceCheckUtils]: 49: Hoare triple {37494#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 96) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37495#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 100) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,299 INFO L273 TraceCheckUtils]: 50: Hoare triple {37495#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 100) (<= main_n 53)))} assume i <= n * 4; {37495#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 100) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,300 INFO L273 TraceCheckUtils]: 51: Hoare triple {37495#(and (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 100) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37496#(and (or (<= main_i 104) (<= main_n 53)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,301 INFO L273 TraceCheckUtils]: 52: Hoare triple {37496#(and (or (<= main_i 104) (<= main_n 53)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37496#(and (or (<= main_i 104) (<= main_n 53)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,302 INFO L273 TraceCheckUtils]: 53: Hoare triple {37496#(and (or (<= main_i 104) (<= main_n 53)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37497#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 108)))} is VALID [2018-12-18 18:04:12,303 INFO L273 TraceCheckUtils]: 54: Hoare triple {37497#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 108)))} assume i <= n * 4; {37497#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 108)))} is VALID [2018-12-18 18:04:12,304 INFO L273 TraceCheckUtils]: 55: Hoare triple {37497#(and (or (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 108)))} assume a[i] != 23;i := i + 4; {37498#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 112)))} is VALID [2018-12-18 18:04:12,304 INFO L273 TraceCheckUtils]: 56: Hoare triple {37498#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 112)))} assume i <= n * 4; {37498#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 112)))} is VALID [2018-12-18 18:04:12,306 INFO L273 TraceCheckUtils]: 57: Hoare triple {37498#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 112)))} assume a[i] != 23;i := i + 4; {37499#(and (or (<= main_n 53) (<= main_i 116)) (or (< 53 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:12,306 INFO L273 TraceCheckUtils]: 58: Hoare triple {37499#(and (or (<= main_n 53) (<= main_i 116)) (or (< 53 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {37499#(and (or (<= main_n 53) (<= main_i 116)) (or (< 53 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:12,307 INFO L273 TraceCheckUtils]: 59: Hoare triple {37499#(and (or (<= main_n 53) (<= main_i 116)) (or (< 53 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {37500#(and (or (< 53 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,308 INFO L273 TraceCheckUtils]: 60: Hoare triple {37500#(and (or (< 53 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 53)))} assume i <= n * 4; {37500#(and (or (< 53 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,309 INFO L273 TraceCheckUtils]: 61: Hoare triple {37500#(and (or (< 53 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37501#(and (or (<= main_n 53) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,310 INFO L273 TraceCheckUtils]: 62: Hoare triple {37501#(and (or (<= main_n 53) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37501#(and (or (<= main_n 53) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,311 INFO L273 TraceCheckUtils]: 63: Hoare triple {37501#(and (or (<= main_n 53) (<= main_i 124)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37502#(and (or (<= main_n 53) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,312 INFO L273 TraceCheckUtils]: 64: Hoare triple {37502#(and (or (<= main_n 53) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 53 main_n)))} assume i <= n * 4; {37502#(and (or (<= main_n 53) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,313 INFO L273 TraceCheckUtils]: 65: Hoare triple {37502#(and (or (<= main_n 53) (<= main_i 128)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37503#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 132) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,314 INFO L273 TraceCheckUtils]: 66: Hoare triple {37503#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 132) (<= main_n 53)))} assume i <= n * 4; {37503#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 132) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,315 INFO L273 TraceCheckUtils]: 67: Hoare triple {37503#(and (or (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 132) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37504#(and (or (< 53 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,316 INFO L273 TraceCheckUtils]: 68: Hoare triple {37504#(and (or (< 53 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 53)))} assume i <= n * 4; {37504#(and (or (< 53 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,317 INFO L273 TraceCheckUtils]: 69: Hoare triple {37504#(and (or (< 53 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 136) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37505#(and (or (< 53 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 53) (<= main_i 140)))} is VALID [2018-12-18 18:04:12,318 INFO L273 TraceCheckUtils]: 70: Hoare triple {37505#(and (or (< 53 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 53) (<= main_i 140)))} assume i <= n * 4; {37505#(and (or (< 53 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 53) (<= main_i 140)))} is VALID [2018-12-18 18:04:12,319 INFO L273 TraceCheckUtils]: 71: Hoare triple {37505#(and (or (< 53 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))) (or (<= main_n 53) (<= main_i 140)))} assume a[i] != 23;i := i + 4; {37506#(and (or (< 53 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 144)))} is VALID [2018-12-18 18:04:12,320 INFO L273 TraceCheckUtils]: 72: Hoare triple {37506#(and (or (< 53 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 144)))} assume i <= n * 4; {37506#(and (or (< 53 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 144)))} is VALID [2018-12-18 18:04:12,321 INFO L273 TraceCheckUtils]: 73: Hoare triple {37506#(and (or (< 53 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 144)))} assume a[i] != 23;i := i + 4; {37507#(and (or (< 53 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 148)))} is VALID [2018-12-18 18:04:12,321 INFO L273 TraceCheckUtils]: 74: Hoare triple {37507#(and (or (< 53 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 148)))} assume i <= n * 4; {37507#(and (or (< 53 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 148)))} is VALID [2018-12-18 18:04:12,322 INFO L273 TraceCheckUtils]: 75: Hoare triple {37507#(and (or (< 53 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 53) (<= main_i 148)))} assume a[i] != 23;i := i + 4; {37508#(and (or (<= main_n 53) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,323 INFO L273 TraceCheckUtils]: 76: Hoare triple {37508#(and (or (<= main_n 53) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37508#(and (or (<= main_n 53) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,324 INFO L273 TraceCheckUtils]: 77: Hoare triple {37508#(and (or (<= main_n 53) (<= main_i 152)) (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37509#(and (or (< 53 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,325 INFO L273 TraceCheckUtils]: 78: Hoare triple {37509#(and (or (< 53 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 53)))} assume i <= n * 4; {37509#(and (or (< 53 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,326 INFO L273 TraceCheckUtils]: 79: Hoare triple {37509#(and (or (< 53 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37510#(and (or (<= main_n 53) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,327 INFO L273 TraceCheckUtils]: 80: Hoare triple {37510#(and (or (<= main_n 53) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37510#(and (or (<= main_n 53) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,328 INFO L273 TraceCheckUtils]: 81: Hoare triple {37510#(and (or (<= main_n 53) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37511#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 164) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,328 INFO L273 TraceCheckUtils]: 82: Hoare triple {37511#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 164) (<= main_n 53)))} assume i <= n * 4; {37511#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 164) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,329 INFO L273 TraceCheckUtils]: 83: Hoare triple {37511#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_i 164) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37512#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 168)))} is VALID [2018-12-18 18:04:12,330 INFO L273 TraceCheckUtils]: 84: Hoare triple {37512#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 168)))} assume i <= n * 4; {37512#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 168)))} is VALID [2018-12-18 18:04:12,331 INFO L273 TraceCheckUtils]: 85: Hoare triple {37512#(and (or (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 168)))} assume a[i] != 23;i := i + 4; {37513#(and (or (<= main_n 53) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,332 INFO L273 TraceCheckUtils]: 86: Hoare triple {37513#(and (or (<= main_n 53) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37513#(and (or (<= main_n 53) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,333 INFO L273 TraceCheckUtils]: 87: Hoare triple {37513#(and (or (<= main_n 53) (<= main_i 172)) (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37514#(and (or (<= main_i 176) (<= main_n 53)) (or (< 53 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:12,334 INFO L273 TraceCheckUtils]: 88: Hoare triple {37514#(and (or (<= main_i 176) (<= main_n 53)) (or (< 53 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {37514#(and (or (<= main_i 176) (<= main_n 53)) (or (< 53 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:12,335 INFO L273 TraceCheckUtils]: 89: Hoare triple {37514#(and (or (<= main_i 176) (<= main_n 53)) (or (< 53 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {37515#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 180)))} is VALID [2018-12-18 18:04:12,336 INFO L273 TraceCheckUtils]: 90: Hoare triple {37515#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 180)))} assume i <= n * 4; {37515#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 180)))} is VALID [2018-12-18 18:04:12,337 INFO L273 TraceCheckUtils]: 91: Hoare triple {37515#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 53 main_n)) (or (<= main_n 53) (<= main_i 180)))} assume a[i] != 23;i := i + 4; {37516#(and (or (<= main_i 184) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,337 INFO L273 TraceCheckUtils]: 92: Hoare triple {37516#(and (or (<= main_i 184) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 53 main_n)))} assume i <= n * 4; {37516#(and (or (<= main_i 184) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,338 INFO L273 TraceCheckUtils]: 93: Hoare triple {37516#(and (or (<= main_i 184) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37517#(and (or (<= main_i 188) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,339 INFO L273 TraceCheckUtils]: 94: Hoare triple {37517#(and (or (<= main_i 188) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 53 main_n)))} assume i <= n * 4; {37517#(and (or (<= main_i 188) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,340 INFO L273 TraceCheckUtils]: 95: Hoare triple {37517#(and (or (<= main_i 188) (<= main_n 53)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37518#(and (or (<= main_i 192) (<= main_n 53)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,341 INFO L273 TraceCheckUtils]: 96: Hoare triple {37518#(and (or (<= main_i 192) (<= main_n 53)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37518#(and (or (<= main_i 192) (<= main_n 53)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,342 INFO L273 TraceCheckUtils]: 97: Hoare triple {37518#(and (or (<= main_i 192) (<= main_n 53)) (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37519#(and (or (<= main_n 53) (<= main_i 196)) (or (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,343 INFO L273 TraceCheckUtils]: 98: Hoare triple {37519#(and (or (<= main_n 53) (<= main_i 196)) (or (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume i <= n * 4; {37519#(and (or (<= main_n 53) (<= main_i 196)) (or (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,344 INFO L273 TraceCheckUtils]: 99: Hoare triple {37519#(and (or (<= main_n 53) (<= main_i 196)) (or (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37520#(and (or (<= main_n 53) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,344 INFO L273 TraceCheckUtils]: 100: Hoare triple {37520#(and (or (<= main_n 53) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 53 main_n)))} assume i <= n * 4; {37520#(and (or (<= main_n 53) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,346 INFO L273 TraceCheckUtils]: 101: Hoare triple {37520#(and (or (<= main_n 53) (<= main_i 200)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 53 main_n)))} assume a[i] != 23;i := i + 4; {37521#(and (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 204)))} is VALID [2018-12-18 18:04:12,346 INFO L273 TraceCheckUtils]: 102: Hoare triple {37521#(and (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 204)))} assume i <= n * 4; {37521#(and (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 204)))} is VALID [2018-12-18 18:04:12,347 INFO L273 TraceCheckUtils]: 103: Hoare triple {37521#(and (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 53 main_n)) (or (<= main_n 53) (<= main_i 204)))} assume a[i] != 23;i := i + 4; {37522#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 208 main_i)) (< 53 main_n)) (or (<= main_i 208) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,348 INFO L273 TraceCheckUtils]: 104: Hoare triple {37522#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 208 main_i)) (< 53 main_n)) (or (<= main_i 208) (<= main_n 53)))} assume i <= n * 4; {37522#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 208 main_i)) (< 53 main_n)) (or (<= main_i 208) (<= main_n 53)))} is VALID [2018-12-18 18:04:12,349 INFO L273 TraceCheckUtils]: 105: Hoare triple {37522#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 208 main_i)) (< 53 main_n)) (or (<= main_i 208) (<= main_n 53)))} assume a[i] != 23;i := i + 4; {37523#(and (or (<= main_i 212) (<= main_n 53)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 53 main_n)))} is VALID [2018-12-18 18:04:12,350 INFO L273 TraceCheckUtils]: 106: Hoare triple {37523#(and (or (<= main_i 212) (<= main_n 53)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 53 main_n)))} assume i <= n * 4; {37524#(and (<= main_i 212) (or (< 53 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2018-12-18 18:04:12,351 INFO L273 TraceCheckUtils]: 107: Hoare triple {37524#(and (<= main_i 212) (or (< 53 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {37525#(and (<= main_i 216) (<= 54 main_n))} is VALID [2018-12-18 18:04:12,352 INFO L273 TraceCheckUtils]: 108: Hoare triple {37525#(and (<= main_i 216) (<= 54 main_n))} assume !(i <= n * 4); {37469#false} is VALID [2018-12-18 18:04:12,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 2862 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:04:12,411 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 18:04:12,411 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 18:04:12,411 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 18:04:12,411 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 18:04:12,411 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 18:04:12,411 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 18:04:12,421 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-18 18:04:12,421 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-18 18:04:12,506 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 54 check-sat command(s) [2018-12-18 18:04:12,506 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 18:04:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 18:04:12,525 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 18:04:12,534 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 18:04:12,537 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 18:04:12,545 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 18:04:12,545 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 18:04:12,547 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 18:04:12,547 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_57]. (and (= main_a (store v_main_a_57 (* 4 main_n) 23)) (= main_i 0)) [2018-12-18 18:04:12,547 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 18:04:17,092 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 18:04:17,095 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 18:04:17,100 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 18:04:17,100 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 18:04:17,103 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 18:04:17,104 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (<= main_i 216) (not (= (select main_a 212) 23)) (= 23 (select main_a .cse0)) (<= 212 .cse0))) [2018-12-18 18:04:17,104 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 216) (not (= 212 .cse0)) (<= 212 .cse0))) [2018-12-18 18:04:17,167 INFO L273 TraceCheckUtils]: 0: Hoare triple {37468#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {37529#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,168 INFO L273 TraceCheckUtils]: 1: Hoare triple {37529#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37533#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 18:04:17,168 INFO L273 TraceCheckUtils]: 2: Hoare triple {37533#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {37533#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 18:04:17,169 INFO L273 TraceCheckUtils]: 3: Hoare triple {37533#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {37540#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,169 INFO L273 TraceCheckUtils]: 4: Hoare triple {37540#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37540#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,170 INFO L273 TraceCheckUtils]: 5: Hoare triple {37540#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37547#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 18:04:17,171 INFO L273 TraceCheckUtils]: 6: Hoare triple {37547#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {37547#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 18:04:17,171 INFO L273 TraceCheckUtils]: 7: Hoare triple {37547#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {37554#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,172 INFO L273 TraceCheckUtils]: 8: Hoare triple {37554#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37554#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,173 INFO L273 TraceCheckUtils]: 9: Hoare triple {37554#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37561#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,173 INFO L273 TraceCheckUtils]: 10: Hoare triple {37561#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37561#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,174 INFO L273 TraceCheckUtils]: 11: Hoare triple {37561#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37568#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,175 INFO L273 TraceCheckUtils]: 12: Hoare triple {37568#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37568#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,175 INFO L273 TraceCheckUtils]: 13: Hoare triple {37568#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37575#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,176 INFO L273 TraceCheckUtils]: 14: Hoare triple {37575#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37575#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,177 INFO L273 TraceCheckUtils]: 15: Hoare triple {37575#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37582#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,177 INFO L273 TraceCheckUtils]: 16: Hoare triple {37582#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37582#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,178 INFO L273 TraceCheckUtils]: 17: Hoare triple {37582#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37589#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,179 INFO L273 TraceCheckUtils]: 18: Hoare triple {37589#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37589#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,179 INFO L273 TraceCheckUtils]: 19: Hoare triple {37589#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37596#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,180 INFO L273 TraceCheckUtils]: 20: Hoare triple {37596#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37596#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,181 INFO L273 TraceCheckUtils]: 21: Hoare triple {37596#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37603#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,181 INFO L273 TraceCheckUtils]: 22: Hoare triple {37603#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37603#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,182 INFO L273 TraceCheckUtils]: 23: Hoare triple {37603#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37610#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,183 INFO L273 TraceCheckUtils]: 24: Hoare triple {37610#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37610#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,184 INFO L273 TraceCheckUtils]: 25: Hoare triple {37610#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37617#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,184 INFO L273 TraceCheckUtils]: 26: Hoare triple {37617#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37617#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,185 INFO L273 TraceCheckUtils]: 27: Hoare triple {37617#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37624#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,186 INFO L273 TraceCheckUtils]: 28: Hoare triple {37624#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37624#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,187 INFO L273 TraceCheckUtils]: 29: Hoare triple {37624#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37631#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,187 INFO L273 TraceCheckUtils]: 30: Hoare triple {37631#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37631#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,188 INFO L273 TraceCheckUtils]: 31: Hoare triple {37631#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37638#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,189 INFO L273 TraceCheckUtils]: 32: Hoare triple {37638#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37638#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,190 INFO L273 TraceCheckUtils]: 33: Hoare triple {37638#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37645#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,190 INFO L273 TraceCheckUtils]: 34: Hoare triple {37645#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37645#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,191 INFO L273 TraceCheckUtils]: 35: Hoare triple {37645#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37652#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,192 INFO L273 TraceCheckUtils]: 36: Hoare triple {37652#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37652#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,193 INFO L273 TraceCheckUtils]: 37: Hoare triple {37652#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37659#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,193 INFO L273 TraceCheckUtils]: 38: Hoare triple {37659#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37659#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,194 INFO L273 TraceCheckUtils]: 39: Hoare triple {37659#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37666#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 18:04:17,195 INFO L273 TraceCheckUtils]: 40: Hoare triple {37666#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {37666#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 18:04:17,195 INFO L273 TraceCheckUtils]: 41: Hoare triple {37666#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {37673#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,196 INFO L273 TraceCheckUtils]: 42: Hoare triple {37673#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37673#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,197 INFO L273 TraceCheckUtils]: 43: Hoare triple {37673#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37680#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,198 INFO L273 TraceCheckUtils]: 44: Hoare triple {37680#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37680#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,199 INFO L273 TraceCheckUtils]: 45: Hoare triple {37680#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37687#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,199 INFO L273 TraceCheckUtils]: 46: Hoare triple {37687#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37687#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,200 INFO L273 TraceCheckUtils]: 47: Hoare triple {37687#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37694#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,201 INFO L273 TraceCheckUtils]: 48: Hoare triple {37694#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37694#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,202 INFO L273 TraceCheckUtils]: 49: Hoare triple {37694#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37701#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,202 INFO L273 TraceCheckUtils]: 50: Hoare triple {37701#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37701#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,203 INFO L273 TraceCheckUtils]: 51: Hoare triple {37701#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37708#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,204 INFO L273 TraceCheckUtils]: 52: Hoare triple {37708#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37708#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,205 INFO L273 TraceCheckUtils]: 53: Hoare triple {37708#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37715#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,205 INFO L273 TraceCheckUtils]: 54: Hoare triple {37715#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37715#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,206 INFO L273 TraceCheckUtils]: 55: Hoare triple {37715#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37722#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,207 INFO L273 TraceCheckUtils]: 56: Hoare triple {37722#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37722#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,208 INFO L273 TraceCheckUtils]: 57: Hoare triple {37722#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37729#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,208 INFO L273 TraceCheckUtils]: 58: Hoare triple {37729#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37729#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,209 INFO L273 TraceCheckUtils]: 59: Hoare triple {37729#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37736#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,210 INFO L273 TraceCheckUtils]: 60: Hoare triple {37736#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37736#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,210 INFO L273 TraceCheckUtils]: 61: Hoare triple {37736#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37743#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,211 INFO L273 TraceCheckUtils]: 62: Hoare triple {37743#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37743#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,212 INFO L273 TraceCheckUtils]: 63: Hoare triple {37743#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37750#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,212 INFO L273 TraceCheckUtils]: 64: Hoare triple {37750#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37750#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,213 INFO L273 TraceCheckUtils]: 65: Hoare triple {37750#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37757#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,214 INFO L273 TraceCheckUtils]: 66: Hoare triple {37757#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37757#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,214 INFO L273 TraceCheckUtils]: 67: Hoare triple {37757#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37764#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,215 INFO L273 TraceCheckUtils]: 68: Hoare triple {37764#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37764#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,216 INFO L273 TraceCheckUtils]: 69: Hoare triple {37764#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37771#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 18:04:17,217 INFO L273 TraceCheckUtils]: 70: Hoare triple {37771#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {37771#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 18:04:17,217 INFO L273 TraceCheckUtils]: 71: Hoare triple {37771#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {37778#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,218 INFO L273 TraceCheckUtils]: 72: Hoare triple {37778#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37778#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,219 INFO L273 TraceCheckUtils]: 73: Hoare triple {37778#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37785#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,219 INFO L273 TraceCheckUtils]: 74: Hoare triple {37785#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37785#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,220 INFO L273 TraceCheckUtils]: 75: Hoare triple {37785#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37792#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,221 INFO L273 TraceCheckUtils]: 76: Hoare triple {37792#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37792#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,221 INFO L273 TraceCheckUtils]: 77: Hoare triple {37792#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37799#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,222 INFO L273 TraceCheckUtils]: 78: Hoare triple {37799#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37799#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,223 INFO L273 TraceCheckUtils]: 79: Hoare triple {37799#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37806#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,223 INFO L273 TraceCheckUtils]: 80: Hoare triple {37806#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37806#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,224 INFO L273 TraceCheckUtils]: 81: Hoare triple {37806#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37813#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 18:04:17,225 INFO L273 TraceCheckUtils]: 82: Hoare triple {37813#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {37813#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 18:04:17,225 INFO L273 TraceCheckUtils]: 83: Hoare triple {37813#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {37820#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,226 INFO L273 TraceCheckUtils]: 84: Hoare triple {37820#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37820#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,227 INFO L273 TraceCheckUtils]: 85: Hoare triple {37820#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37827#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,227 INFO L273 TraceCheckUtils]: 86: Hoare triple {37827#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37827#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,228 INFO L273 TraceCheckUtils]: 87: Hoare triple {37827#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37834#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,229 INFO L273 TraceCheckUtils]: 88: Hoare triple {37834#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37834#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,230 INFO L273 TraceCheckUtils]: 89: Hoare triple {37834#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37841#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,230 INFO L273 TraceCheckUtils]: 90: Hoare triple {37841#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37841#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,231 INFO L273 TraceCheckUtils]: 91: Hoare triple {37841#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37848#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,232 INFO L273 TraceCheckUtils]: 92: Hoare triple {37848#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37848#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,232 INFO L273 TraceCheckUtils]: 93: Hoare triple {37848#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37855#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,233 INFO L273 TraceCheckUtils]: 94: Hoare triple {37855#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37855#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,234 INFO L273 TraceCheckUtils]: 95: Hoare triple {37855#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37862#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,234 INFO L273 TraceCheckUtils]: 96: Hoare triple {37862#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37862#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,235 INFO L273 TraceCheckUtils]: 97: Hoare triple {37862#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37869#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,235 INFO L273 TraceCheckUtils]: 98: Hoare triple {37869#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37869#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,236 INFO L273 TraceCheckUtils]: 99: Hoare triple {37869#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37876#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,237 INFO L273 TraceCheckUtils]: 100: Hoare triple {37876#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37876#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,237 INFO L273 TraceCheckUtils]: 101: Hoare triple {37876#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37883#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,238 INFO L273 TraceCheckUtils]: 102: Hoare triple {37883#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37883#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,239 INFO L273 TraceCheckUtils]: 103: Hoare triple {37883#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37890#(and (= main_i 208) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,239 INFO L273 TraceCheckUtils]: 104: Hoare triple {37890#(and (= main_i 208) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37890#(and (= main_i 208) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,240 INFO L273 TraceCheckUtils]: 105: Hoare triple {37890#(and (= main_i 208) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37897#(and (= main_i 212) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,241 INFO L273 TraceCheckUtils]: 106: Hoare triple {37897#(and (= main_i 212) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {37901#(and (= main_i 212) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:17,242 INFO L273 TraceCheckUtils]: 107: Hoare triple {37901#(and (= main_i 212) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {37525#(and (<= main_i 216) (<= 54 main_n))} is VALID [2018-12-18 18:04:17,242 INFO L273 TraceCheckUtils]: 108: Hoare triple {37525#(and (<= main_i 216) (<= 54 main_n))} assume !(i <= n * 4); {37469#false} is VALID [2018-12-18 18:04:17,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 2862 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:04:17,269 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 18:04:25,441 INFO L273 TraceCheckUtils]: 108: Hoare triple {37908#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {37469#false} is VALID [2018-12-18 18:04:25,442 INFO L273 TraceCheckUtils]: 107: Hoare triple {37912#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} assume a[i] != 23;i := i + 4; {37908#(<= main_i (* 4 main_n))} is VALID [2018-12-18 18:04:25,442 INFO L273 TraceCheckUtils]: 106: Hoare triple {37916#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} assume i <= n * 4; {37912#(or (< (+ main_i 3) (* 4 main_n)) (= (select main_a main_i) 23))} is VALID [2018-12-18 18:04:25,443 INFO L273 TraceCheckUtils]: 105: Hoare triple {37920#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume a[i] != 23;i := i + 4; {37916#(or (< (+ main_i 3) (* 4 main_n)) (< (* 4 main_n) main_i) (= (select main_a main_i) 23))} is VALID [2018-12-18 18:04:25,443 INFO L273 TraceCheckUtils]: 104: Hoare triple {37920#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} assume i <= n * 4; {37920#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 18:04:25,444 INFO L273 TraceCheckUtils]: 103: Hoare triple {37927#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume a[i] != 23;i := i + 4; {37920#(or (< (+ main_i 7) (* 4 main_n)) (< (* 4 main_n) (+ main_i 4)) (= 23 (select main_a (+ main_i 4))))} is VALID [2018-12-18 18:04:25,444 INFO L273 TraceCheckUtils]: 102: Hoare triple {37927#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} assume i <= n * 4; {37927#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 18:04:25,445 INFO L273 TraceCheckUtils]: 101: Hoare triple {37934#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume a[i] != 23;i := i + 4; {37927#(or (= (select main_a (+ main_i 8)) 23) (< (+ main_i 11) (* 4 main_n)) (< (* 4 main_n) (+ main_i 8)))} is VALID [2018-12-18 18:04:25,445 INFO L273 TraceCheckUtils]: 100: Hoare triple {37934#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} assume i <= n * 4; {37934#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 18:04:25,446 INFO L273 TraceCheckUtils]: 99: Hoare triple {37941#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume a[i] != 23;i := i + 4; {37934#(or (< (+ main_i 15) (* 4 main_n)) (< (* 4 main_n) (+ main_i 12)) (= 23 (select main_a (+ main_i 12))))} is VALID [2018-12-18 18:04:25,447 INFO L273 TraceCheckUtils]: 98: Hoare triple {37941#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} assume i <= n * 4; {37941#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 18:04:25,448 INFO L273 TraceCheckUtils]: 97: Hoare triple {37948#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {37941#(or (< (* 4 main_n) (+ main_i 16)) (< (+ main_i 19) (* 4 main_n)) (= (select main_a (+ main_i 16)) 23))} is VALID [2018-12-18 18:04:25,448 INFO L273 TraceCheckUtils]: 96: Hoare triple {37948#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} assume i <= n * 4; {37948#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,449 INFO L273 TraceCheckUtils]: 95: Hoare triple {37955#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume a[i] != 23;i := i + 4; {37948#(or (< (* 4 main_n) (+ main_i 20)) (= (select main_a (+ main_i 20)) 23) (< (+ main_i 23) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,450 INFO L273 TraceCheckUtils]: 94: Hoare triple {37955#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} assume i <= n * 4; {37955#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 18:04:25,451 INFO L273 TraceCheckUtils]: 93: Hoare triple {37962#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {37955#(or (< (* 4 main_n) (+ main_i 24)) (< (+ main_i 27) (* 4 main_n)) (= (select main_a (+ main_i 24)) 23))} is VALID [2018-12-18 18:04:25,452 INFO L273 TraceCheckUtils]: 92: Hoare triple {37962#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} assume i <= n * 4; {37962#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,453 INFO L273 TraceCheckUtils]: 91: Hoare triple {37969#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {37962#(or (= 23 (select main_a (+ main_i 28))) (< (* 4 main_n) (+ main_i 28)) (< (+ main_i 31) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,453 INFO L273 TraceCheckUtils]: 90: Hoare triple {37969#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} assume i <= n * 4; {37969#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,454 INFO L273 TraceCheckUtils]: 89: Hoare triple {37976#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {37969#(or (= 23 (select main_a (+ main_i 32))) (< (* 4 main_n) (+ main_i 32)) (< (+ main_i 35) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,455 INFO L273 TraceCheckUtils]: 88: Hoare triple {37976#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} assume i <= n * 4; {37976#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,456 INFO L273 TraceCheckUtils]: 87: Hoare triple {37983#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume a[i] != 23;i := i + 4; {37976#(or (= (select main_a (+ main_i 36)) 23) (< (* 4 main_n) (+ main_i 36)) (< (+ main_i 39) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,456 INFO L273 TraceCheckUtils]: 86: Hoare triple {37983#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} assume i <= n * 4; {37983#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 18:04:25,458 INFO L273 TraceCheckUtils]: 85: Hoare triple {37990#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {37983#(or (< (+ main_i 43) (* 4 main_n)) (= (select main_a (+ main_i 40)) 23) (< (* 4 main_n) (+ main_i 40)))} is VALID [2018-12-18 18:04:25,458 INFO L273 TraceCheckUtils]: 84: Hoare triple {37990#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} assume i <= n * 4; {37990#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,459 INFO L273 TraceCheckUtils]: 83: Hoare triple {37997#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {37990#(or (< (* 4 main_n) (+ main_i 44)) (= 23 (select main_a (+ main_i 44))) (< (+ main_i 47) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,460 INFO L273 TraceCheckUtils]: 82: Hoare triple {37997#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} assume i <= n * 4; {37997#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,461 INFO L273 TraceCheckUtils]: 81: Hoare triple {38004#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume a[i] != 23;i := i + 4; {37997#(or (< (* 4 main_n) (+ main_i 48)) (= 23 (select main_a (+ main_i 48))) (< (+ main_i 51) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,461 INFO L273 TraceCheckUtils]: 80: Hoare triple {38004#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} assume i <= n * 4; {38004#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 18:04:25,463 INFO L273 TraceCheckUtils]: 79: Hoare triple {38011#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38004#(or (= (select main_a (+ main_i 52)) 23) (< (+ main_i 55) (* 4 main_n)) (< (* 4 main_n) (+ main_i 52)))} is VALID [2018-12-18 18:04:25,463 INFO L273 TraceCheckUtils]: 78: Hoare triple {38011#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} assume i <= n * 4; {38011#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,464 INFO L273 TraceCheckUtils]: 77: Hoare triple {38018#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume a[i] != 23;i := i + 4; {38011#(or (= (select main_a (+ main_i 56)) 23) (< (* 4 main_n) (+ main_i 56)) (< (+ main_i 59) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,465 INFO L273 TraceCheckUtils]: 76: Hoare triple {38018#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} assume i <= n * 4; {38018#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 18:04:25,466 INFO L273 TraceCheckUtils]: 75: Hoare triple {38025#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume a[i] != 23;i := i + 4; {38018#(or (< (+ main_i 63) (* 4 main_n)) (< (* 4 main_n) (+ main_i 60)) (= (select main_a (+ main_i 60)) 23))} is VALID [2018-12-18 18:04:25,466 INFO L273 TraceCheckUtils]: 74: Hoare triple {38025#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} assume i <= n * 4; {38025#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 18:04:25,468 INFO L273 TraceCheckUtils]: 73: Hoare triple {38032#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume a[i] != 23;i := i + 4; {38025#(or (< (+ main_i 67) (* 4 main_n)) (= (select main_a (+ main_i 64)) 23) (< (* 4 main_n) (+ main_i 64)))} is VALID [2018-12-18 18:04:25,468 INFO L273 TraceCheckUtils]: 72: Hoare triple {38032#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} assume i <= n * 4; {38032#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 18:04:25,469 INFO L273 TraceCheckUtils]: 71: Hoare triple {38039#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume a[i] != 23;i := i + 4; {38032#(or (< (+ main_i 71) (* 4 main_n)) (= 23 (select main_a (+ main_i 68))) (< (* 4 main_n) (+ main_i 68)))} is VALID [2018-12-18 18:04:25,470 INFO L273 TraceCheckUtils]: 70: Hoare triple {38039#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} assume i <= n * 4; {38039#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 18:04:25,471 INFO L273 TraceCheckUtils]: 69: Hoare triple {38046#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume a[i] != 23;i := i + 4; {38039#(or (< (+ main_i 75) (* 4 main_n)) (< (* 4 main_n) (+ main_i 72)) (= 23 (select main_a (+ main_i 72))))} is VALID [2018-12-18 18:04:25,471 INFO L273 TraceCheckUtils]: 68: Hoare triple {38046#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} assume i <= n * 4; {38046#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 18:04:25,472 INFO L273 TraceCheckUtils]: 67: Hoare triple {38053#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume a[i] != 23;i := i + 4; {38046#(or (< (+ main_i 79) (* 4 main_n)) (< (* 4 main_n) (+ main_i 76)) (= 23 (select main_a (+ main_i 76))))} is VALID [2018-12-18 18:04:25,473 INFO L273 TraceCheckUtils]: 66: Hoare triple {38053#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} assume i <= n * 4; {38053#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 18:04:25,474 INFO L273 TraceCheckUtils]: 65: Hoare triple {38060#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38053#(or (= 23 (select main_a (+ main_i 80))) (< (+ main_i 83) (* 4 main_n)) (< (* 4 main_n) (+ main_i 80)))} is VALID [2018-12-18 18:04:25,475 INFO L273 TraceCheckUtils]: 64: Hoare triple {38060#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} assume i <= n * 4; {38060#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,476 INFO L273 TraceCheckUtils]: 63: Hoare triple {38067#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38060#(or (< (* 4 main_n) (+ main_i 84)) (= (select main_a (+ main_i 84)) 23) (< (+ main_i 87) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,476 INFO L273 TraceCheckUtils]: 62: Hoare triple {38067#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} assume i <= n * 4; {38067#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,477 INFO L273 TraceCheckUtils]: 61: Hoare triple {38074#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38067#(or (= 23 (select main_a (+ main_i 88))) (< (* 4 main_n) (+ main_i 88)) (< (+ main_i 91) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,478 INFO L273 TraceCheckUtils]: 60: Hoare triple {38074#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} assume i <= n * 4; {38074#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,479 INFO L273 TraceCheckUtils]: 59: Hoare triple {38081#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume a[i] != 23;i := i + 4; {38074#(or (< (* 4 main_n) (+ main_i 92)) (= (select main_a (+ main_i 92)) 23) (< (+ main_i 95) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,480 INFO L273 TraceCheckUtils]: 58: Hoare triple {38081#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} assume i <= n * 4; {38081#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 18:04:25,481 INFO L273 TraceCheckUtils]: 57: Hoare triple {38088#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38081#(or (= 23 (select main_a (+ main_i 96))) (< (+ main_i 99) (* 4 main_n)) (< (* 4 main_n) (+ main_i 96)))} is VALID [2018-12-18 18:04:25,481 INFO L273 TraceCheckUtils]: 56: Hoare triple {38088#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} assume i <= n * 4; {38088#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,482 INFO L273 TraceCheckUtils]: 55: Hoare triple {38095#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume a[i] != 23;i := i + 4; {38088#(or (= (select main_a (+ main_i 100)) 23) (< (* 4 main_n) (+ main_i 100)) (< (+ main_i 103) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,483 INFO L273 TraceCheckUtils]: 54: Hoare triple {38095#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} assume i <= n * 4; {38095#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 18:04:25,491 INFO L273 TraceCheckUtils]: 53: Hoare triple {38102#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume a[i] != 23;i := i + 4; {38095#(or (= 23 (select main_a (+ main_i 104))) (< (+ main_i 107) (* 4 main_n)) (< (* 4 main_n) (+ main_i 104)))} is VALID [2018-12-18 18:04:25,492 INFO L273 TraceCheckUtils]: 52: Hoare triple {38102#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} assume i <= n * 4; {38102#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 18:04:25,492 INFO L273 TraceCheckUtils]: 51: Hoare triple {38109#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume a[i] != 23;i := i + 4; {38102#(or (< (+ main_i 111) (* 4 main_n)) (= 23 (select main_a (+ main_i 108))) (< (* 4 main_n) (+ main_i 108)))} is VALID [2018-12-18 18:04:25,493 INFO L273 TraceCheckUtils]: 50: Hoare triple {38109#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} assume i <= n * 4; {38109#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 18:04:25,494 INFO L273 TraceCheckUtils]: 49: Hoare triple {38116#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38109#(or (< (+ main_i 115) (* 4 main_n)) (= (select main_a (+ main_i 112)) 23) (< (* 4 main_n) (+ main_i 112)))} is VALID [2018-12-18 18:04:25,495 INFO L273 TraceCheckUtils]: 48: Hoare triple {38116#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} assume i <= n * 4; {38116#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,496 INFO L273 TraceCheckUtils]: 47: Hoare triple {38123#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38116#(or (= 23 (select main_a (+ main_i 116))) (< (* 4 main_n) (+ main_i 116)) (< (+ main_i 119) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,496 INFO L273 TraceCheckUtils]: 46: Hoare triple {38123#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} assume i <= n * 4; {38123#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,497 INFO L273 TraceCheckUtils]: 45: Hoare triple {38130#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume a[i] != 23;i := i + 4; {38123#(or (= (select main_a (+ main_i 120)) 23) (< (* 4 main_n) (+ main_i 120)) (< (+ main_i 123) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,498 INFO L273 TraceCheckUtils]: 44: Hoare triple {38130#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} assume i <= n * 4; {38130#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 18:04:25,499 INFO L273 TraceCheckUtils]: 43: Hoare triple {38137#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38130#(or (= 23 (select main_a (+ main_i 124))) (< (+ main_i 127) (* 4 main_n)) (< (* 4 main_n) (+ main_i 124)))} is VALID [2018-12-18 18:04:25,499 INFO L273 TraceCheckUtils]: 42: Hoare triple {38137#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} assume i <= n * 4; {38137#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,500 INFO L273 TraceCheckUtils]: 41: Hoare triple {38144#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume a[i] != 23;i := i + 4; {38137#(or (< (* 4 main_n) (+ main_i 128)) (= (select main_a (+ main_i 128)) 23) (< (+ main_i 131) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,501 INFO L273 TraceCheckUtils]: 40: Hoare triple {38144#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} assume i <= n * 4; {38144#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 18:04:25,502 INFO L273 TraceCheckUtils]: 39: Hoare triple {38151#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume a[i] != 23;i := i + 4; {38144#(or (< (* 4 main_n) (+ main_i 132)) (< (+ main_i 135) (* 4 main_n)) (= (select main_a (+ main_i 132)) 23))} is VALID [2018-12-18 18:04:25,503 INFO L273 TraceCheckUtils]: 38: Hoare triple {38151#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} assume i <= n * 4; {38151#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 18:04:25,504 INFO L273 TraceCheckUtils]: 37: Hoare triple {38158#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume a[i] != 23;i := i + 4; {38151#(or (< (+ main_i 139) (* 4 main_n)) (= (select main_a (+ main_i 136)) 23) (< (* 4 main_n) (+ main_i 136)))} is VALID [2018-12-18 18:04:25,504 INFO L273 TraceCheckUtils]: 36: Hoare triple {38158#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} assume i <= n * 4; {38158#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 18:04:25,505 INFO L273 TraceCheckUtils]: 35: Hoare triple {38165#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume a[i] != 23;i := i + 4; {38158#(or (< (* 4 main_n) (+ main_i 140)) (< (+ main_i 143) (* 4 main_n)) (= (select main_a (+ main_i 140)) 23))} is VALID [2018-12-18 18:04:25,506 INFO L273 TraceCheckUtils]: 34: Hoare triple {38165#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} assume i <= n * 4; {38165#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 18:04:25,507 INFO L273 TraceCheckUtils]: 33: Hoare triple {38172#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume a[i] != 23;i := i + 4; {38165#(or (= (select main_a (+ main_i 144)) 23) (< (+ main_i 147) (* 4 main_n)) (< (* 4 main_n) (+ main_i 144)))} is VALID [2018-12-18 18:04:25,507 INFO L273 TraceCheckUtils]: 32: Hoare triple {38172#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} assume i <= n * 4; {38172#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 18:04:25,508 INFO L273 TraceCheckUtils]: 31: Hoare triple {38179#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume a[i] != 23;i := i + 4; {38172#(or (< (+ main_i 151) (* 4 main_n)) (< (* 4 main_n) (+ main_i 148)) (= (select main_a (+ main_i 148)) 23))} is VALID [2018-12-18 18:04:25,509 INFO L273 TraceCheckUtils]: 30: Hoare triple {38179#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} assume i <= n * 4; {38179#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 18:04:25,510 INFO L273 TraceCheckUtils]: 29: Hoare triple {38186#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume a[i] != 23;i := i + 4; {38179#(or (= 23 (select main_a (+ main_i 152))) (< (+ main_i 155) (* 4 main_n)) (< (* 4 main_n) (+ main_i 152)))} is VALID [2018-12-18 18:04:25,511 INFO L273 TraceCheckUtils]: 28: Hoare triple {38186#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} assume i <= n * 4; {38186#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 18:04:25,512 INFO L273 TraceCheckUtils]: 27: Hoare triple {38193#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume a[i] != 23;i := i + 4; {38186#(or (< (+ main_i 159) (* 4 main_n)) (= (select main_a (+ main_i 156)) 23) (< (* 4 main_n) (+ main_i 156)))} is VALID [2018-12-18 18:04:25,512 INFO L273 TraceCheckUtils]: 26: Hoare triple {38193#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} assume i <= n * 4; {38193#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 18:04:25,513 INFO L273 TraceCheckUtils]: 25: Hoare triple {38200#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume a[i] != 23;i := i + 4; {38193#(or (< (+ main_i 163) (* 4 main_n)) (= (select main_a (+ main_i 160)) 23) (< (* 4 main_n) (+ main_i 160)))} is VALID [2018-12-18 18:04:25,514 INFO L273 TraceCheckUtils]: 24: Hoare triple {38200#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} assume i <= n * 4; {38200#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 18:04:25,515 INFO L273 TraceCheckUtils]: 23: Hoare triple {38207#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38200#(or (< (* 4 main_n) (+ main_i 164)) (< (+ main_i 167) (* 4 main_n)) (= (select main_a (+ main_i 164)) 23))} is VALID [2018-12-18 18:04:25,515 INFO L273 TraceCheckUtils]: 22: Hoare triple {38207#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} assume i <= n * 4; {38207#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,516 INFO L273 TraceCheckUtils]: 21: Hoare triple {38214#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38207#(or (= (select main_a (+ main_i 168)) 23) (< (* 4 main_n) (+ main_i 168)) (< (+ main_i 171) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,517 INFO L273 TraceCheckUtils]: 20: Hoare triple {38214#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} assume i <= n * 4; {38214#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,518 INFO L273 TraceCheckUtils]: 19: Hoare triple {38221#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume a[i] != 23;i := i + 4; {38214#(or (< (* 4 main_n) (+ main_i 172)) (= (select main_a (+ main_i 172)) 23) (< (+ main_i 175) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,518 INFO L273 TraceCheckUtils]: 18: Hoare triple {38221#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} assume i <= n * 4; {38221#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2018-12-18 18:04:25,520 INFO L273 TraceCheckUtils]: 17: Hoare triple {38228#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume a[i] != 23;i := i + 4; {38221#(or (= (select main_a (+ main_i 176)) 23) (< (+ main_i 179) (* 4 main_n)) (< (* 4 main_n) (+ main_i 176)))} is VALID [2018-12-18 18:04:25,520 INFO L273 TraceCheckUtils]: 16: Hoare triple {38228#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} assume i <= n * 4; {38228#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2018-12-18 18:04:25,521 INFO L273 TraceCheckUtils]: 15: Hoare triple {38235#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume a[i] != 23;i := i + 4; {38228#(or (< (+ main_i 183) (* 4 main_n)) (= (select main_a (+ main_i 180)) 23) (< (* 4 main_n) (+ main_i 180)))} is VALID [2018-12-18 18:04:25,522 INFO L273 TraceCheckUtils]: 14: Hoare triple {38235#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} assume i <= n * 4; {38235#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2018-12-18 18:04:25,523 INFO L273 TraceCheckUtils]: 13: Hoare triple {38242#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume a[i] != 23;i := i + 4; {38235#(or (= (select main_a (+ main_i 184)) 23) (< (+ main_i 187) (* 4 main_n)) (< (* 4 main_n) (+ main_i 184)))} is VALID [2018-12-18 18:04:25,523 INFO L273 TraceCheckUtils]: 12: Hoare triple {38242#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} assume i <= n * 4; {38242#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2018-12-18 18:04:25,524 INFO L273 TraceCheckUtils]: 11: Hoare triple {38249#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume a[i] != 23;i := i + 4; {38242#(or (< (+ main_i 191) (* 4 main_n)) (< (* 4 main_n) (+ main_i 188)) (= 23 (select main_a (+ main_i 188))))} is VALID [2018-12-18 18:04:25,525 INFO L273 TraceCheckUtils]: 10: Hoare triple {38249#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} assume i <= n * 4; {38249#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2018-12-18 18:04:25,526 INFO L273 TraceCheckUtils]: 9: Hoare triple {38256#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume a[i] != 23;i := i + 4; {38249#(or (= 23 (select main_a (+ main_i 192))) (< (+ main_i 195) (* 4 main_n)) (< (* 4 main_n) (+ main_i 192)))} is VALID [2018-12-18 18:04:25,526 INFO L273 TraceCheckUtils]: 8: Hoare triple {38256#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} assume i <= n * 4; {38256#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2018-12-18 18:04:25,527 INFO L273 TraceCheckUtils]: 7: Hoare triple {38263#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} assume a[i] != 23;i := i + 4; {38256#(or (= 23 (select main_a (+ main_i 196))) (< (+ main_i 199) (* 4 main_n)) (< (* 4 main_n) (+ main_i 196)))} is VALID [2018-12-18 18:04:25,528 INFO L273 TraceCheckUtils]: 6: Hoare triple {38263#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} assume i <= n * 4; {38263#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} is VALID [2018-12-18 18:04:25,529 INFO L273 TraceCheckUtils]: 5: Hoare triple {38270#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} assume a[i] != 23;i := i + 4; {38263#(or (< (* 4 main_n) (+ main_i 200)) (< (+ main_i 203) (* 4 main_n)) (= 23 (select main_a (+ main_i 200))))} is VALID [2018-12-18 18:04:25,529 INFO L273 TraceCheckUtils]: 4: Hoare triple {38270#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} assume i <= n * 4; {38270#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} is VALID [2018-12-18 18:04:25,530 INFO L273 TraceCheckUtils]: 3: Hoare triple {38277#(or (= (select main_a (+ main_i 208)) 23) (< (+ main_i 211) (* 4 main_n)) (< (* 4 main_n) (+ main_i 208)))} assume a[i] != 23;i := i + 4; {38270#(or (< (+ main_i 207) (* 4 main_n)) (< (* 4 main_n) (+ main_i 204)) (= (select main_a (+ main_i 204)) 23))} is VALID [2018-12-18 18:04:25,531 INFO L273 TraceCheckUtils]: 2: Hoare triple {38277#(or (= (select main_a (+ main_i 208)) 23) (< (+ main_i 211) (* 4 main_n)) (< (* 4 main_n) (+ main_i 208)))} assume i <= n * 4; {38277#(or (= (select main_a (+ main_i 208)) 23) (< (+ main_i 211) (* 4 main_n)) (< (* 4 main_n) (+ main_i 208)))} is VALID [2018-12-18 18:04:25,532 INFO L273 TraceCheckUtils]: 1: Hoare triple {38284#(or (< (* 4 main_n) (+ main_i 212)) (= 23 (select main_a (+ main_i 212))) (< (+ main_i 215) (* 4 main_n)))} assume a[i] != 23;i := i + 4; {38277#(or (= (select main_a (+ main_i 208)) 23) (< (+ main_i 211) (* 4 main_n)) (< (* 4 main_n) (+ main_i 208)))} is VALID [2018-12-18 18:04:25,533 INFO L273 TraceCheckUtils]: 0: Hoare triple {37468#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {38284#(or (< (* 4 main_n) (+ main_i 212)) (= 23 (select main_a (+ main_i 212))) (< (+ main_i 215) (* 4 main_n)))} is VALID [2018-12-18 18:04:25,577 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 2862 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:04:25,597 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 18:04:25,597 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56, 56] total 167 [2018-12-18 18:04:25,597 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 18:04:25,597 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 109 [2018-12-18 18:04:25,597 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 18:04:25,598 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 113 states. [2018-12-18 18:04:25,870 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 217 edges. 217 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 18:04:25,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 113 states [2018-12-18 18:04:25,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2018-12-18 18:04:25,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3424, Invalid=24968, Unknown=0, NotChecked=0, Total=28392 [2018-12-18 18:04:25,872 INFO L87 Difference]: Start difference. First operand 110 states and 110 transitions. Second operand 113 states. [2018-12-18 18:04:43,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:04:43,511 INFO L93 Difference]: Finished difference Result 114 states and 114 transitions. [2018-12-18 18:04:43,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2018-12-18 18:04:43,512 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 109 [2018-12-18 18:04:43,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 18:04:43,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-12-18 18:04:43,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 114 transitions. [2018-12-18 18:04:43,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-12-18 18:04:43,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 114 transitions. [2018-12-18 18:04:43,515 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 58 states and 114 transitions. [2018-12-18 18:04:43,641 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 114 edges. 114 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 18:04:43,643 INFO L225 Difference]: With dead ends: 114 [2018-12-18 18:04:43,643 INFO L226 Difference]: Without dead ends: 113 [2018-12-18 18:04:43,643 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6380 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=3424, Invalid=24968, Unknown=0, NotChecked=0, Total=28392 [2018-12-18 18:04:43,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-12-18 18:04:43,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 112. [2018-12-18 18:04:43,761 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 18:04:43,761 INFO L82 GeneralOperation]: Start isEquivalent. First operand 113 states. Second operand 112 states. [2018-12-18 18:04:43,761 INFO L74 IsIncluded]: Start isIncluded. First operand 113 states. Second operand 112 states. [2018-12-18 18:04:43,761 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 112 states. [2018-12-18 18:04:43,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:04:43,763 INFO L93 Difference]: Finished difference Result 113 states and 113 transitions. [2018-12-18 18:04:43,763 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2018-12-18 18:04:43,763 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 18:04:43,764 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 18:04:43,764 INFO L74 IsIncluded]: Start isIncluded. First operand 112 states. Second operand 113 states. [2018-12-18 18:04:43,764 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 113 states. [2018-12-18 18:04:43,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:04:43,765 INFO L93 Difference]: Finished difference Result 113 states and 113 transitions. [2018-12-18 18:04:43,765 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2018-12-18 18:04:43,765 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 18:04:43,765 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 18:04:43,765 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 18:04:43,765 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 18:04:43,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-12-18 18:04:43,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 112 transitions. [2018-12-18 18:04:43,767 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 112 transitions. Word has length 109 [2018-12-18 18:04:43,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 18:04:43,767 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 112 transitions. [2018-12-18 18:04:43,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has 113 states. [2018-12-18 18:04:43,767 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 112 transitions. [2018-12-18 18:04:43,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-12-18 18:04:43,767 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 18:04:43,767 INFO L402 BasicCegarLoop]: trace histogram [55, 54, 1, 1] [2018-12-18 18:04:43,767 INFO L423 AbstractCegarLoop]: === Iteration 55 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 18:04:43,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 18:04:43,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1262778548, now seen corresponding path program 54 times [2018-12-18 18:04:43,768 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 18:04:43,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 18:04:43,768 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-18 18:04:43,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 18:04:43,768 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 18:04:43,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 18:04:47,214 INFO L273 TraceCheckUtils]: 0: Hoare triple {38850#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {38852#(and (or (<= main_i 0) (<= main_n 54)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,216 INFO L273 TraceCheckUtils]: 1: Hoare triple {38852#(and (or (<= main_i 0) (<= main_n 54)) (or (and (<= 0 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38853#(and (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,216 INFO L273 TraceCheckUtils]: 2: Hoare triple {38853#(and (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 54)))} assume i <= n * 4; {38853#(and (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,217 INFO L273 TraceCheckUtils]: 3: Hoare triple {38853#(and (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 4 main_i))) (or (<= main_i 4) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38854#(and (or (<= main_i 8) (<= main_n 54)) (or (< 54 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,218 INFO L273 TraceCheckUtils]: 4: Hoare triple {38854#(and (or (<= main_i 8) (<= main_n 54)) (or (< 54 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38854#(and (or (<= main_i 8) (<= main_n 54)) (or (< 54 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,219 INFO L273 TraceCheckUtils]: 5: Hoare triple {38854#(and (or (<= main_i 8) (<= main_n 54)) (or (< 54 main_n) (and (<= 8 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38855#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_n 54) (<= main_i 12)))} is VALID [2018-12-18 18:04:47,220 INFO L273 TraceCheckUtils]: 6: Hoare triple {38855#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_n 54) (<= main_i 12)))} assume i <= n * 4; {38855#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_n 54) (<= main_i 12)))} is VALID [2018-12-18 18:04:47,221 INFO L273 TraceCheckUtils]: 7: Hoare triple {38855#(and (or (and (<= 12 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_n 54) (<= main_i 12)))} assume a[i] != 23;i := i + 4; {38856#(and (or (<= main_i 16) (<= main_n 54)) (or (< 54 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,222 INFO L273 TraceCheckUtils]: 8: Hoare triple {38856#(and (or (<= main_i 16) (<= main_n 54)) (or (< 54 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38856#(and (or (<= main_i 16) (<= main_n 54)) (or (< 54 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,223 INFO L273 TraceCheckUtils]: 9: Hoare triple {38856#(and (or (<= main_i 16) (<= main_n 54)) (or (< 54 main_n) (and (<= 16 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38857#(and (or (<= main_i 20) (<= main_n 54)) (or (< 54 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,223 INFO L273 TraceCheckUtils]: 10: Hoare triple {38857#(and (or (<= main_i 20) (<= main_n 54)) (or (< 54 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38857#(and (or (<= main_i 20) (<= main_n 54)) (or (< 54 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,225 INFO L273 TraceCheckUtils]: 11: Hoare triple {38857#(and (or (<= main_i 20) (<= main_n 54)) (or (< 54 main_n) (and (<= 20 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38858#(and (or (<= main_i 24) (<= main_n 54)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,225 INFO L273 TraceCheckUtils]: 12: Hoare triple {38858#(and (or (<= main_i 24) (<= main_n 54)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume i <= n * 4; {38858#(and (or (<= main_i 24) (<= main_n 54)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,226 INFO L273 TraceCheckUtils]: 13: Hoare triple {38858#(and (or (<= main_i 24) (<= main_n 54)) (or (and (<= 24 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38859#(and (or (<= main_i 28) (<= main_n 54)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,227 INFO L273 TraceCheckUtils]: 14: Hoare triple {38859#(and (or (<= main_i 28) (<= main_n 54)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume i <= n * 4; {38859#(and (or (<= main_i 28) (<= main_n 54)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,228 INFO L273 TraceCheckUtils]: 15: Hoare triple {38859#(and (or (<= main_i 28) (<= main_n 54)) (or (and (<= 28 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38860#(and (or (<= main_i 32) (<= main_n 54)) (or (< 54 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,229 INFO L273 TraceCheckUtils]: 16: Hoare triple {38860#(and (or (<= main_i 32) (<= main_n 54)) (or (< 54 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38860#(and (or (<= main_i 32) (<= main_n 54)) (or (< 54 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,230 INFO L273 TraceCheckUtils]: 17: Hoare triple {38860#(and (or (<= main_i 32) (<= main_n 54)) (or (< 54 main_n) (and (<= 32 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38861#(and (or (<= main_i 36) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,231 INFO L273 TraceCheckUtils]: 18: Hoare triple {38861#(and (or (<= main_i 36) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 54 main_n)))} assume i <= n * 4; {38861#(and (or (<= main_i 36) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,232 INFO L273 TraceCheckUtils]: 19: Hoare triple {38861#(and (or (<= main_i 36) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 36 main_i)) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38862#(and (or (<= main_i 40) (<= main_n 54)) (or (< 54 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,232 INFO L273 TraceCheckUtils]: 20: Hoare triple {38862#(and (or (<= main_i 40) (<= main_n 54)) (or (< 54 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38862#(and (or (<= main_i 40) (<= main_n 54)) (or (< 54 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,233 INFO L273 TraceCheckUtils]: 21: Hoare triple {38862#(and (or (<= main_i 40) (<= main_n 54)) (or (< 54 main_n) (and (<= 40 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38863#(and (or (< 54 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 54) (<= main_i 44)))} is VALID [2018-12-18 18:04:47,234 INFO L273 TraceCheckUtils]: 22: Hoare triple {38863#(and (or (< 54 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 54) (<= main_i 44)))} assume i <= n * 4; {38863#(and (or (< 54 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 54) (<= main_i 44)))} is VALID [2018-12-18 18:04:47,235 INFO L273 TraceCheckUtils]: 23: Hoare triple {38863#(and (or (< 54 main_n) (and (<= 44 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 54) (<= main_i 44)))} assume a[i] != 23;i := i + 4; {38864#(and (or (<= main_i 48) (<= main_n 54)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,236 INFO L273 TraceCheckUtils]: 24: Hoare triple {38864#(and (or (<= main_i 48) (<= main_n 54)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume i <= n * 4; {38864#(and (or (<= main_i 48) (<= main_n 54)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,237 INFO L273 TraceCheckUtils]: 25: Hoare triple {38864#(and (or (<= main_i 48) (<= main_n 54)) (or (and (<= 48 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38865#(and (or (<= main_i 52) (<= main_n 54)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,238 INFO L273 TraceCheckUtils]: 26: Hoare triple {38865#(and (or (<= main_i 52) (<= main_n 54)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume i <= n * 4; {38865#(and (or (<= main_i 52) (<= main_n 54)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,239 INFO L273 TraceCheckUtils]: 27: Hoare triple {38865#(and (or (<= main_i 52) (<= main_n 54)) (or (and (<= 52 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38866#(and (or (<= main_i 56) (<= main_n 54)) (or (< 54 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,239 INFO L273 TraceCheckUtils]: 28: Hoare triple {38866#(and (or (<= main_i 56) (<= main_n 54)) (or (< 54 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38866#(and (or (<= main_i 56) (<= main_n 54)) (or (< 54 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,240 INFO L273 TraceCheckUtils]: 29: Hoare triple {38866#(and (or (<= main_i 56) (<= main_n 54)) (or (< 54 main_n) (and (<= 56 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38867#(and (or (< 54 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,241 INFO L273 TraceCheckUtils]: 30: Hoare triple {38867#(and (or (< 54 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 54)))} assume i <= n * 4; {38867#(and (or (< 54 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,242 INFO L273 TraceCheckUtils]: 31: Hoare triple {38867#(and (or (< 54 main_n) (and (<= 60 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 60) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38868#(and (or (<= main_i 64) (<= main_n 54)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,243 INFO L273 TraceCheckUtils]: 32: Hoare triple {38868#(and (or (<= main_i 64) (<= main_n 54)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume i <= n * 4; {38868#(and (or (<= main_i 64) (<= main_n 54)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,244 INFO L273 TraceCheckUtils]: 33: Hoare triple {38868#(and (or (<= main_i 64) (<= main_n 54)) (or (and (<= 64 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38869#(and (or (<= main_n 54) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,245 INFO L273 TraceCheckUtils]: 34: Hoare triple {38869#(and (or (<= main_n 54) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume i <= n * 4; {38869#(and (or (<= main_n 54) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,246 INFO L273 TraceCheckUtils]: 35: Hoare triple {38869#(and (or (<= main_n 54) (<= main_i 68)) (or (and (<= 68 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38870#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 72) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,246 INFO L273 TraceCheckUtils]: 36: Hoare triple {38870#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 72) (<= main_n 54)))} assume i <= n * 4; {38870#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 72) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,247 INFO L273 TraceCheckUtils]: 37: Hoare triple {38870#(and (or (and (<= 72 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 72) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38871#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 76) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,248 INFO L273 TraceCheckUtils]: 38: Hoare triple {38871#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 76) (<= main_n 54)))} assume i <= n * 4; {38871#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 76) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,249 INFO L273 TraceCheckUtils]: 39: Hoare triple {38871#(and (or (and (<= 76 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 76) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38872#(and (or (<= main_i 80) (<= main_n 54)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,250 INFO L273 TraceCheckUtils]: 40: Hoare triple {38872#(and (or (<= main_i 80) (<= main_n 54)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume i <= n * 4; {38872#(and (or (<= main_i 80) (<= main_n 54)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,251 INFO L273 TraceCheckUtils]: 41: Hoare triple {38872#(and (or (<= main_i 80) (<= main_n 54)) (or (and (<= 80 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38873#(and (or (<= main_i 84) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,252 INFO L273 TraceCheckUtils]: 42: Hoare triple {38873#(and (or (<= main_i 84) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 54 main_n)))} assume i <= n * 4; {38873#(and (or (<= main_i 84) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,253 INFO L273 TraceCheckUtils]: 43: Hoare triple {38873#(and (or (<= main_i 84) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 84 main_i)) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38874#(and (or (< 54 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,253 INFO L273 TraceCheckUtils]: 44: Hoare triple {38874#(and (or (< 54 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 54)))} assume i <= n * 4; {38874#(and (or (< 54 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,255 INFO L273 TraceCheckUtils]: 45: Hoare triple {38874#(and (or (< 54 main_n) (and (<= 88 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 88) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38875#(and (or (<= main_i 92) (<= main_n 54)) (or (< 54 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,255 INFO L273 TraceCheckUtils]: 46: Hoare triple {38875#(and (or (<= main_i 92) (<= main_n 54)) (or (< 54 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38875#(and (or (<= main_i 92) (<= main_n 54)) (or (< 54 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,256 INFO L273 TraceCheckUtils]: 47: Hoare triple {38875#(and (or (<= main_i 92) (<= main_n 54)) (or (< 54 main_n) (and (<= 92 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38876#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 96) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,257 INFO L273 TraceCheckUtils]: 48: Hoare triple {38876#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 96) (<= main_n 54)))} assume i <= n * 4; {38876#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 96) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,258 INFO L273 TraceCheckUtils]: 49: Hoare triple {38876#(and (or (and (<= 96 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 96) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38877#(and (or (<= main_i 100) (<= main_n 54)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,259 INFO L273 TraceCheckUtils]: 50: Hoare triple {38877#(and (or (<= main_i 100) (<= main_n 54)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume i <= n * 4; {38877#(and (or (<= main_i 100) (<= main_n 54)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,260 INFO L273 TraceCheckUtils]: 51: Hoare triple {38877#(and (or (<= main_i 100) (<= main_n 54)) (or (and (<= 100 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38878#(and (or (<= main_i 104) (<= main_n 54)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,261 INFO L273 TraceCheckUtils]: 52: Hoare triple {38878#(and (or (<= main_i 104) (<= main_n 54)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume i <= n * 4; {38878#(and (or (<= main_i 104) (<= main_n 54)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,262 INFO L273 TraceCheckUtils]: 53: Hoare triple {38878#(and (or (<= main_i 104) (<= main_n 54)) (or (and (<= 104 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38879#(and (or (< 54 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 108) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,262 INFO L273 TraceCheckUtils]: 54: Hoare triple {38879#(and (or (< 54 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 108) (<= main_n 54)))} assume i <= n * 4; {38879#(and (or (< 54 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 108) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,263 INFO L273 TraceCheckUtils]: 55: Hoare triple {38879#(and (or (< 54 main_n) (and (<= 108 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 108) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38880#(and (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 54) (<= main_i 112)))} is VALID [2018-12-18 18:04:47,264 INFO L273 TraceCheckUtils]: 56: Hoare triple {38880#(and (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 54) (<= main_i 112)))} assume i <= n * 4; {38880#(and (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 54) (<= main_i 112)))} is VALID [2018-12-18 18:04:47,265 INFO L273 TraceCheckUtils]: 57: Hoare triple {38880#(and (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 112 main_i))) (or (<= main_n 54) (<= main_i 112)))} assume a[i] != 23;i := i + 4; {38881#(and (or (<= main_i 116) (<= main_n 54)) (or (< 54 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,266 INFO L273 TraceCheckUtils]: 58: Hoare triple {38881#(and (or (<= main_i 116) (<= main_n 54)) (or (< 54 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38881#(and (or (<= main_i 116) (<= main_n 54)) (or (< 54 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,267 INFO L273 TraceCheckUtils]: 59: Hoare triple {38881#(and (or (<= main_i 116) (<= main_n 54)) (or (< 54 main_n) (and (<= 116 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38882#(and (or (< 54 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,268 INFO L273 TraceCheckUtils]: 60: Hoare triple {38882#(and (or (< 54 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 54)))} assume i <= n * 4; {38882#(and (or (< 54 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,269 INFO L273 TraceCheckUtils]: 61: Hoare triple {38882#(and (or (< 54 main_n) (and (<= 120 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 120) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38883#(and (or (<= main_i 124) (<= main_n 54)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,269 INFO L273 TraceCheckUtils]: 62: Hoare triple {38883#(and (or (<= main_i 124) (<= main_n 54)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume i <= n * 4; {38883#(and (or (<= main_i 124) (<= main_n 54)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,270 INFO L273 TraceCheckUtils]: 63: Hoare triple {38883#(and (or (<= main_i 124) (<= main_n 54)) (or (and (<= 124 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38884#(and (or (<= main_i 128) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,271 INFO L273 TraceCheckUtils]: 64: Hoare triple {38884#(and (or (<= main_i 128) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 54 main_n)))} assume i <= n * 4; {38884#(and (or (<= main_i 128) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,272 INFO L273 TraceCheckUtils]: 65: Hoare triple {38884#(and (or (<= main_i 128) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 128 main_i)) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38885#(and (or (<= main_i 132) (<= main_n 54)) (or (< 54 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,273 INFO L273 TraceCheckUtils]: 66: Hoare triple {38885#(and (or (<= main_i 132) (<= main_n 54)) (or (< 54 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38885#(and (or (<= main_i 132) (<= main_n 54)) (or (< 54 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,274 INFO L273 TraceCheckUtils]: 67: Hoare triple {38885#(and (or (<= main_i 132) (<= main_n 54)) (or (< 54 main_n) (and (<= 132 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38886#(and (or (<= main_i 136) (<= main_n 54)) (or (< 54 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,275 INFO L273 TraceCheckUtils]: 68: Hoare triple {38886#(and (or (<= main_i 136) (<= main_n 54)) (or (< 54 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38886#(and (or (<= main_i 136) (<= main_n 54)) (or (< 54 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,276 INFO L273 TraceCheckUtils]: 69: Hoare triple {38886#(and (or (<= main_i 136) (<= main_n 54)) (or (< 54 main_n) (and (<= 136 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38887#(and (or (<= main_i 140) (<= main_n 54)) (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} is VALID [2018-12-18 18:04:47,276 INFO L273 TraceCheckUtils]: 70: Hoare triple {38887#(and (or (<= main_i 140) (<= main_n 54)) (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} assume i <= n * 4; {38887#(and (or (<= main_i 140) (<= main_n 54)) (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} is VALID [2018-12-18 18:04:47,278 INFO L273 TraceCheckUtils]: 71: Hoare triple {38887#(and (or (<= main_i 140) (<= main_n 54)) (or (< 54 main_n) (and (= 23 (select main_a (* 4 main_n))) (<= 140 main_i))))} assume a[i] != 23;i := i + 4; {38888#(and (or (<= main_n 54) (<= main_i 144)) (or (< 54 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,278 INFO L273 TraceCheckUtils]: 72: Hoare triple {38888#(and (or (<= main_n 54) (<= main_i 144)) (or (< 54 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38888#(and (or (<= main_n 54) (<= main_i 144)) (or (< 54 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,279 INFO L273 TraceCheckUtils]: 73: Hoare triple {38888#(and (or (<= main_n 54) (<= main_i 144)) (or (< 54 main_n) (and (<= 144 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38889#(and (or (<= main_i 148) (<= main_n 54)) (or (< 54 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,280 INFO L273 TraceCheckUtils]: 74: Hoare triple {38889#(and (or (<= main_i 148) (<= main_n 54)) (or (< 54 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume i <= n * 4; {38889#(and (or (<= main_i 148) (<= main_n 54)) (or (< 54 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} is VALID [2018-12-18 18:04:47,281 INFO L273 TraceCheckUtils]: 75: Hoare triple {38889#(and (or (<= main_i 148) (<= main_n 54)) (or (< 54 main_n) (and (<= 148 main_i) (= 23 (select main_a (* 4 main_n))))))} assume a[i] != 23;i := i + 4; {38890#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 152) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,282 INFO L273 TraceCheckUtils]: 76: Hoare triple {38890#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 152) (<= main_n 54)))} assume i <= n * 4; {38890#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 152) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,283 INFO L273 TraceCheckUtils]: 77: Hoare triple {38890#(and (or (and (<= 152 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 152) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38891#(and (or (< 54 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,284 INFO L273 TraceCheckUtils]: 78: Hoare triple {38891#(and (or (< 54 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 54)))} assume i <= n * 4; {38891#(and (or (< 54 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,285 INFO L273 TraceCheckUtils]: 79: Hoare triple {38891#(and (or (< 54 main_n) (and (<= 156 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 156) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38892#(and (or (<= main_n 54) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,286 INFO L273 TraceCheckUtils]: 80: Hoare triple {38892#(and (or (<= main_n 54) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume i <= n * 4; {38892#(and (or (<= main_n 54) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,287 INFO L273 TraceCheckUtils]: 81: Hoare triple {38892#(and (or (<= main_n 54) (<= main_i 160)) (or (and (<= 160 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38893#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 164) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,288 INFO L273 TraceCheckUtils]: 82: Hoare triple {38893#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 164) (<= main_n 54)))} assume i <= n * 4; {38893#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 164) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,289 INFO L273 TraceCheckUtils]: 83: Hoare triple {38893#(and (or (and (<= 164 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 164) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38894#(and (or (< 54 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 168) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,289 INFO L273 TraceCheckUtils]: 84: Hoare triple {38894#(and (or (< 54 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 168) (<= main_n 54)))} assume i <= n * 4; {38894#(and (or (< 54 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 168) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,290 INFO L273 TraceCheckUtils]: 85: Hoare triple {38894#(and (or (< 54 main_n) (and (<= 168 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 168) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38895#(and (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 172) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,291 INFO L273 TraceCheckUtils]: 86: Hoare triple {38895#(and (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 172) (<= main_n 54)))} assume i <= n * 4; {38895#(and (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 172) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,292 INFO L273 TraceCheckUtils]: 87: Hoare triple {38895#(and (or (and (<= 172 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 172) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38896#(and (or (< 54 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,293 INFO L273 TraceCheckUtils]: 88: Hoare triple {38896#(and (or (< 54 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 54)))} assume i <= n * 4; {38896#(and (or (< 54 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,294 INFO L273 TraceCheckUtils]: 89: Hoare triple {38896#(and (or (< 54 main_n) (and (<= 176 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_i 176) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38897#(and (or (<= main_i 180) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,295 INFO L273 TraceCheckUtils]: 90: Hoare triple {38897#(and (or (<= main_i 180) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 54 main_n)))} assume i <= n * 4; {38897#(and (or (<= main_i 180) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,296 INFO L273 TraceCheckUtils]: 91: Hoare triple {38897#(and (or (<= main_i 180) (<= main_n 54)) (or (and (= 23 (select main_a (* 4 main_n))) (<= 180 main_i)) (< 54 main_n)))} assume a[i] != 23;i := i + 4; {38898#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 54 main_n)) (or (<= main_i 184) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,297 INFO L273 TraceCheckUtils]: 92: Hoare triple {38898#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 54 main_n)) (or (<= main_i 184) (<= main_n 54)))} assume i <= n * 4; {38898#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 54 main_n)) (or (<= main_i 184) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,298 INFO L273 TraceCheckUtils]: 93: Hoare triple {38898#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 184 main_i)) (< 54 main_n)) (or (<= main_i 184) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38899#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 54 main_n)) (or (<= main_i 188) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,299 INFO L273 TraceCheckUtils]: 94: Hoare triple {38899#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 54 main_n)) (or (<= main_i 188) (<= main_n 54)))} assume i <= n * 4; {38899#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 54 main_n)) (or (<= main_i 188) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,300 INFO L273 TraceCheckUtils]: 95: Hoare triple {38899#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 188 main_i)) (< 54 main_n)) (or (<= main_i 188) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38900#(and (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 192) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,301 INFO L273 TraceCheckUtils]: 96: Hoare triple {38900#(and (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 192) (<= main_n 54)))} assume i <= n * 4; {38900#(and (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 192) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,302 INFO L273 TraceCheckUtils]: 97: Hoare triple {38900#(and (or (and (<= 192 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 192) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38901#(and (or (< 54 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 54) (<= main_i 196)))} is VALID [2018-12-18 18:04:47,304 INFO L273 TraceCheckUtils]: 98: Hoare triple {38901#(and (or (< 54 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 54) (<= main_i 196)))} assume i <= n * 4; {38901#(and (or (< 54 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 54) (<= main_i 196)))} is VALID [2018-12-18 18:04:47,305 INFO L273 TraceCheckUtils]: 99: Hoare triple {38901#(and (or (< 54 main_n) (and (<= 196 main_i) (= 23 (select main_a (* 4 main_n))))) (or (<= main_n 54) (<= main_i 196)))} assume a[i] != 23;i := i + 4; {38902#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 54 main_n)) (or (<= main_i 200) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,306 INFO L273 TraceCheckUtils]: 100: Hoare triple {38902#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 54 main_n)) (or (<= main_i 200) (<= main_n 54)))} assume i <= n * 4; {38902#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 54 main_n)) (or (<= main_i 200) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,307 INFO L273 TraceCheckUtils]: 101: Hoare triple {38902#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 200 main_i)) (< 54 main_n)) (or (<= main_i 200) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38903#(and (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 204) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,307 INFO L273 TraceCheckUtils]: 102: Hoare triple {38903#(and (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 204) (<= main_n 54)))} assume i <= n * 4; {38903#(and (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 204) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,308 INFO L273 TraceCheckUtils]: 103: Hoare triple {38903#(and (or (and (<= 204 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 204) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38904#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 208 main_i)) (< 54 main_n)) (or (<= main_i 208) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,308 INFO L273 TraceCheckUtils]: 104: Hoare triple {38904#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 208 main_i)) (< 54 main_n)) (or (<= main_i 208) (<= main_n 54)))} assume i <= n * 4; {38904#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 208 main_i)) (< 54 main_n)) (or (<= main_i 208) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,309 INFO L273 TraceCheckUtils]: 105: Hoare triple {38904#(and (or (and (= 23 (select main_a (* 4 main_n))) (<= 208 main_i)) (< 54 main_n)) (or (<= main_i 208) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38905#(and (or (and (<= 212 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 212) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,310 INFO L273 TraceCheckUtils]: 106: Hoare triple {38905#(and (or (and (<= 212 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 212) (<= main_n 54)))} assume i <= n * 4; {38905#(and (or (and (<= 212 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 212) (<= main_n 54)))} is VALID [2018-12-18 18:04:47,311 INFO L273 TraceCheckUtils]: 107: Hoare triple {38905#(and (or (and (<= 212 main_i) (= 23 (select main_a (* 4 main_n)))) (< 54 main_n)) (or (<= main_i 212) (<= main_n 54)))} assume a[i] != 23;i := i + 4; {38906#(and (or (<= main_i 216) (<= main_n 54)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 54 main_n)))} is VALID [2018-12-18 18:04:47,312 INFO L273 TraceCheckUtils]: 108: Hoare triple {38906#(and (or (<= main_i 216) (<= main_n 54)) (or (and (or (not (= (* 4 main_n) main_i)) (= 23 (select main_a main_i))) (<= (* 4 main_n) main_i)) (< 54 main_n)))} assume i <= n * 4; {38907#(and (<= main_i 216) (or (< 54 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} is VALID [2018-12-18 18:04:47,313 INFO L273 TraceCheckUtils]: 109: Hoare triple {38907#(and (<= main_i 216) (or (< 54 main_n) (and (<= (* 4 main_n) main_i) (<= main_i (* 4 main_n)) (= 23 (select main_a main_i)))))} assume a[i] != 23;i := i + 4; {38908#(and (<= main_i 220) (<= 55 main_n))} is VALID [2018-12-18 18:04:47,314 INFO L273 TraceCheckUtils]: 110: Hoare triple {38908#(and (<= main_i 220) (<= 55 main_n))} assume !(i <= n * 4); {38851#false} is VALID [2018-12-18 18:04:47,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2970 backedges. 0 proven. 2970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:04:47,373 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 18:04:47,373 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 18:04:47,373 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-18 18:04:47,373 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-18 18:04:47,373 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 18:04:47,374 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 18:04:47,382 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-18 18:04:47,382 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-18 18:04:47,416 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-18 18:04:47,416 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-18 18:04:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 18:04:47,434 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 18:04:47,441 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 18:04:47,452 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 18:04:47,455 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 18:04:47,455 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-18 18:04:47,458 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 18:04:47,458 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_main_a_58]. (and (= (store v_main_a_58 (* 4 main_n) 23) main_a) (= main_i 0)) [2018-12-18 18:04:47,458 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2018-12-18 18:04:52,131 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-18 18:04:52,134 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 18:04:52,140 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 18:04:52,141 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2018-12-18 18:04:52,143 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 18:04:52,144 WARN L384 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 216))) (<= main_i 220) (<= 216 .cse0) (= 23 (select main_a .cse0)))) [2018-12-18 18:04:52,144 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 216 .cse0)) (<= main_i 220) (<= 216 .cse0))) [2018-12-18 18:04:52,210 INFO L273 TraceCheckUtils]: 0: Hoare triple {38850#true} assume n >= 0;a := a[n * 4 := 23];i := 0; {38912#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,211 INFO L273 TraceCheckUtils]: 1: Hoare triple {38912#(and (= main_i 0) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {38916#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 18:04:52,211 INFO L273 TraceCheckUtils]: 2: Hoare triple {38916#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume i <= n * 4; {38916#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} is VALID [2018-12-18 18:04:52,212 INFO L273 TraceCheckUtils]: 3: Hoare triple {38916#(and (= 23 (select main_a (* 4 main_n))) (= main_i 4))} assume a[i] != 23;i := i + 4; {38923#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,212 INFO L273 TraceCheckUtils]: 4: Hoare triple {38923#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {38923#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,213 INFO L273 TraceCheckUtils]: 5: Hoare triple {38923#(and (= main_i 8) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {38930#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 18:04:52,213 INFO L273 TraceCheckUtils]: 6: Hoare triple {38930#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume i <= n * 4; {38930#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} is VALID [2018-12-18 18:04:52,214 INFO L273 TraceCheckUtils]: 7: Hoare triple {38930#(and (= 23 (select main_a (* 4 main_n))) (= main_i 12))} assume a[i] != 23;i := i + 4; {38937#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,215 INFO L273 TraceCheckUtils]: 8: Hoare triple {38937#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {38937#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,215 INFO L273 TraceCheckUtils]: 9: Hoare triple {38937#(and (= main_i 16) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {38944#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,216 INFO L273 TraceCheckUtils]: 10: Hoare triple {38944#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {38944#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,217 INFO L273 TraceCheckUtils]: 11: Hoare triple {38944#(and (= main_i 20) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {38951#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,217 INFO L273 TraceCheckUtils]: 12: Hoare triple {38951#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {38951#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,218 INFO L273 TraceCheckUtils]: 13: Hoare triple {38951#(and (= main_i 24) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {38958#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,219 INFO L273 TraceCheckUtils]: 14: Hoare triple {38958#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {38958#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,219 INFO L273 TraceCheckUtils]: 15: Hoare triple {38958#(and (= main_i 28) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {38965#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,220 INFO L273 TraceCheckUtils]: 16: Hoare triple {38965#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {38965#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,221 INFO L273 TraceCheckUtils]: 17: Hoare triple {38965#(and (= main_i 32) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {38972#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,221 INFO L273 TraceCheckUtils]: 18: Hoare triple {38972#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {38972#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,222 INFO L273 TraceCheckUtils]: 19: Hoare triple {38972#(and (= main_i 36) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {38979#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,223 INFO L273 TraceCheckUtils]: 20: Hoare triple {38979#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {38979#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,223 INFO L273 TraceCheckUtils]: 21: Hoare triple {38979#(and (= main_i 40) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {38986#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,224 INFO L273 TraceCheckUtils]: 22: Hoare triple {38986#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {38986#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,224 INFO L273 TraceCheckUtils]: 23: Hoare triple {38986#(and (= main_i 44) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {38993#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,225 INFO L273 TraceCheckUtils]: 24: Hoare triple {38993#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {38993#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,226 INFO L273 TraceCheckUtils]: 25: Hoare triple {38993#(and (= main_i 48) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39000#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,226 INFO L273 TraceCheckUtils]: 26: Hoare triple {39000#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39000#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,227 INFO L273 TraceCheckUtils]: 27: Hoare triple {39000#(and (= main_i 52) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39007#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,228 INFO L273 TraceCheckUtils]: 28: Hoare triple {39007#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39007#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,228 INFO L273 TraceCheckUtils]: 29: Hoare triple {39007#(and (= main_i 56) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39014#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,229 INFO L273 TraceCheckUtils]: 30: Hoare triple {39014#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39014#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,230 INFO L273 TraceCheckUtils]: 31: Hoare triple {39014#(and (= main_i 60) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39021#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,230 INFO L273 TraceCheckUtils]: 32: Hoare triple {39021#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39021#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,231 INFO L273 TraceCheckUtils]: 33: Hoare triple {39021#(and (= main_i 64) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39028#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,232 INFO L273 TraceCheckUtils]: 34: Hoare triple {39028#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39028#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,232 INFO L273 TraceCheckUtils]: 35: Hoare triple {39028#(and (= main_i 68) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39035#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,233 INFO L273 TraceCheckUtils]: 36: Hoare triple {39035#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39035#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,234 INFO L273 TraceCheckUtils]: 37: Hoare triple {39035#(and (= main_i 72) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39042#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,235 INFO L273 TraceCheckUtils]: 38: Hoare triple {39042#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39042#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,235 INFO L273 TraceCheckUtils]: 39: Hoare triple {39042#(and (= main_i 76) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39049#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 18:04:52,236 INFO L273 TraceCheckUtils]: 40: Hoare triple {39049#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume i <= n * 4; {39049#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} is VALID [2018-12-18 18:04:52,237 INFO L273 TraceCheckUtils]: 41: Hoare triple {39049#(and (= 23 (select main_a (* 4 main_n))) (= main_i 80))} assume a[i] != 23;i := i + 4; {39056#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,237 INFO L273 TraceCheckUtils]: 42: Hoare triple {39056#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39056#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,238 INFO L273 TraceCheckUtils]: 43: Hoare triple {39056#(and (= main_i 84) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39063#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,239 INFO L273 TraceCheckUtils]: 44: Hoare triple {39063#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39063#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,239 INFO L273 TraceCheckUtils]: 45: Hoare triple {39063#(and (= main_i 88) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39070#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,240 INFO L273 TraceCheckUtils]: 46: Hoare triple {39070#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39070#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,241 INFO L273 TraceCheckUtils]: 47: Hoare triple {39070#(and (= main_i 92) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39077#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,241 INFO L273 TraceCheckUtils]: 48: Hoare triple {39077#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39077#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,242 INFO L273 TraceCheckUtils]: 49: Hoare triple {39077#(and (= main_i 96) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39084#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,243 INFO L273 TraceCheckUtils]: 50: Hoare triple {39084#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39084#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,243 INFO L273 TraceCheckUtils]: 51: Hoare triple {39084#(and (= main_i 100) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39091#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,244 INFO L273 TraceCheckUtils]: 52: Hoare triple {39091#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39091#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,245 INFO L273 TraceCheckUtils]: 53: Hoare triple {39091#(and (= main_i 104) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39098#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,245 INFO L273 TraceCheckUtils]: 54: Hoare triple {39098#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39098#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,246 INFO L273 TraceCheckUtils]: 55: Hoare triple {39098#(and (= main_i 108) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39105#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,247 INFO L273 TraceCheckUtils]: 56: Hoare triple {39105#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39105#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,247 INFO L273 TraceCheckUtils]: 57: Hoare triple {39105#(and (= main_i 112) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39112#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,248 INFO L273 TraceCheckUtils]: 58: Hoare triple {39112#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39112#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,249 INFO L273 TraceCheckUtils]: 59: Hoare triple {39112#(and (= main_i 116) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39119#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,249 INFO L273 TraceCheckUtils]: 60: Hoare triple {39119#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39119#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,250 INFO L273 TraceCheckUtils]: 61: Hoare triple {39119#(and (= main_i 120) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39126#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,251 INFO L273 TraceCheckUtils]: 62: Hoare triple {39126#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39126#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,251 INFO L273 TraceCheckUtils]: 63: Hoare triple {39126#(and (= main_i 124) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39133#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,252 INFO L273 TraceCheckUtils]: 64: Hoare triple {39133#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39133#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,253 INFO L273 TraceCheckUtils]: 65: Hoare triple {39133#(and (= main_i 128) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39140#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,253 INFO L273 TraceCheckUtils]: 66: Hoare triple {39140#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39140#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,254 INFO L273 TraceCheckUtils]: 67: Hoare triple {39140#(and (= main_i 132) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39147#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,255 INFO L273 TraceCheckUtils]: 68: Hoare triple {39147#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39147#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,255 INFO L273 TraceCheckUtils]: 69: Hoare triple {39147#(and (= main_i 136) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39154#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 18:04:52,256 INFO L273 TraceCheckUtils]: 70: Hoare triple {39154#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume i <= n * 4; {39154#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} is VALID [2018-12-18 18:04:52,257 INFO L273 TraceCheckUtils]: 71: Hoare triple {39154#(and (= 23 (select main_a (* 4 main_n))) (= main_i 140))} assume a[i] != 23;i := i + 4; {39161#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,258 INFO L273 TraceCheckUtils]: 72: Hoare triple {39161#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39161#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,258 INFO L273 TraceCheckUtils]: 73: Hoare triple {39161#(and (= main_i 144) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39168#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,259 INFO L273 TraceCheckUtils]: 74: Hoare triple {39168#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39168#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,260 INFO L273 TraceCheckUtils]: 75: Hoare triple {39168#(and (= main_i 148) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39175#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,260 INFO L273 TraceCheckUtils]: 76: Hoare triple {39175#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39175#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,261 INFO L273 TraceCheckUtils]: 77: Hoare triple {39175#(and (= main_i 152) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39182#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,262 INFO L273 TraceCheckUtils]: 78: Hoare triple {39182#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39182#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,262 INFO L273 TraceCheckUtils]: 79: Hoare triple {39182#(and (= main_i 156) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39189#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,263 INFO L273 TraceCheckUtils]: 80: Hoare triple {39189#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39189#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,264 INFO L273 TraceCheckUtils]: 81: Hoare triple {39189#(and (= main_i 160) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39196#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 18:04:52,264 INFO L273 TraceCheckUtils]: 82: Hoare triple {39196#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume i <= n * 4; {39196#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} is VALID [2018-12-18 18:04:52,265 INFO L273 TraceCheckUtils]: 83: Hoare triple {39196#(and (= 23 (select main_a (* 4 main_n))) (= main_i 164))} assume a[i] != 23;i := i + 4; {39203#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,265 INFO L273 TraceCheckUtils]: 84: Hoare triple {39203#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39203#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,266 INFO L273 TraceCheckUtils]: 85: Hoare triple {39203#(and (= main_i 168) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39210#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,267 INFO L273 TraceCheckUtils]: 86: Hoare triple {39210#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39210#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,267 INFO L273 TraceCheckUtils]: 87: Hoare triple {39210#(and (= main_i 172) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39217#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,268 INFO L273 TraceCheckUtils]: 88: Hoare triple {39217#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39217#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,269 INFO L273 TraceCheckUtils]: 89: Hoare triple {39217#(and (= main_i 176) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39224#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,269 INFO L273 TraceCheckUtils]: 90: Hoare triple {39224#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39224#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,270 INFO L273 TraceCheckUtils]: 91: Hoare triple {39224#(and (= main_i 180) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39231#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,271 INFO L273 TraceCheckUtils]: 92: Hoare triple {39231#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39231#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,271 INFO L273 TraceCheckUtils]: 93: Hoare triple {39231#(and (= main_i 184) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39238#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,272 INFO L273 TraceCheckUtils]: 94: Hoare triple {39238#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39238#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,273 INFO L273 TraceCheckUtils]: 95: Hoare triple {39238#(and (= main_i 188) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39245#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,273 INFO L273 TraceCheckUtils]: 96: Hoare triple {39245#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39245#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,274 INFO L273 TraceCheckUtils]: 97: Hoare triple {39245#(and (= main_i 192) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39252#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,275 INFO L273 TraceCheckUtils]: 98: Hoare triple {39252#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39252#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,275 INFO L273 TraceCheckUtils]: 99: Hoare triple {39252#(and (= main_i 196) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39259#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,276 INFO L273 TraceCheckUtils]: 100: Hoare triple {39259#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39259#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,277 INFO L273 TraceCheckUtils]: 101: Hoare triple {39259#(and (= main_i 200) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39266#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,277 INFO L273 TraceCheckUtils]: 102: Hoare triple {39266#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39266#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,278 INFO L273 TraceCheckUtils]: 103: Hoare triple {39266#(and (= main_i 204) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39273#(and (= main_i 208) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,279 INFO L273 TraceCheckUtils]: 104: Hoare triple {39273#(and (= main_i 208) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39273#(and (= main_i 208) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,279 INFO L273 TraceCheckUtils]: 105: Hoare triple {39273#(and (= main_i 208) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39280#(and (= main_i 212) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,280 INFO L273 TraceCheckUtils]: 106: Hoare triple {39280#(and (= main_i 212) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39280#(and (= main_i 212) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,281 INFO L273 TraceCheckUtils]: 107: Hoare triple {39280#(and (= main_i 212) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {39287#(and (= main_i 216) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,281 INFO L273 TraceCheckUtils]: 108: Hoare triple {39287#(and (= main_i 216) (= 23 (select main_a (* 4 main_n))))} assume i <= n * 4; {39291#(and (= main_i 216) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} is VALID [2018-12-18 18:04:52,282 INFO L273 TraceCheckUtils]: 109: Hoare triple {39291#(and (= main_i 216) (<= main_i (* 4 main_n)) (= 23 (select main_a (* 4 main_n))))} assume a[i] != 23;i := i + 4; {38908#(and (<= main_i 220) (<= 55 main_n))} is VALID [2018-12-18 18:04:52,283 INFO L273 TraceCheckUtils]: 110: Hoare triple {38908#(and (<= main_i 220) (<= 55 main_n))} assume !(i <= n * 4); {38851#false} is VALID [2018-12-18 18:04:52,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2970 backedges. 0 proven. 2970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:04:52,310 INFO L316 TraceCheckSpWp]: Computing backward predicates...