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_array_oct.epf -i ../../../trunk/examples/programs/real-life/divisibilityWithArray.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-1de736e-m [2019-02-14 16:37:02,096 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-02-14 16:37:02,098 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-02-14 16:37:02,111 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-02-14 16:37:02,158 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_oct.epf [2019-02-14 16:37:02,170 INFO L110 SettingsManager]: Loading preferences was successful [2019-02-14 16:37:02,171 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-02-14 16:37:02,171 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-02-14 16:37:02,173 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-02-14 16:37:02,174 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-02-14 16:37:02,174 INFO L133 SettingsManager]: * User list type=DISABLED [2019-02-14 16:37:02,174 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-02-14 16:37:02,174 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-02-14 16:37:02,174 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-02-14 16:37:02,175 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2019-02-14 16:37:02,175 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2019-02-14 16:37:02,175 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-02-14 16:37:02,175 INFO L133 SettingsManager]: * Interval Domain=false [2019-02-14 16:37:02,176 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-02-14 16:37:02,176 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-02-14 16:37:02,177 INFO L133 SettingsManager]: * Use SBE=true [2019-02-14 16:37:02,178 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-02-14 16:37:02,178 INFO L133 SettingsManager]: * sizeof long=4 [2019-02-14 16:37:02,179 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-02-14 16:37:02,180 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-02-14 16:37:02,180 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-02-14 16:37:02,180 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-02-14 16:37:02,180 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-02-14 16:37:02,180 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-02-14 16:37:02,181 INFO L133 SettingsManager]: * sizeof long double=12 [2019-02-14 16:37:02,181 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-02-14 16:37:02,181 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-02-14 16:37:02,181 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-02-14 16:37:02,182 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-02-14 16:37:02,182 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-02-14 16:37:02,182 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-02-14 16:37:02,182 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-02-14 16:37:02,182 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-02-14 16:37:02,183 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-02-14 16:37:02,184 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-02-14 16:37:02,184 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-02-14 16:37:02,184 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-02-14 16:37:02,184 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-02-14 16:37:02,184 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-02-14 16:37:02,225 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-02-14 16:37:02,237 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-02-14 16:37:02,241 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-02-14 16:37:02,242 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-02-14 16:37:02,243 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-02-14 16:37:02,243 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/divisibilityWithArray.bpl [2019-02-14 16:37:02,244 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/divisibilityWithArray.bpl' [2019-02-14 16:37:02,282 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-02-14 16:37:02,285 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-02-14 16:37:02,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-02-14 16:37:02,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-02-14 16:37:02,286 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-02-14 16:37:02,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.02 04:37:02" (1/1) ... [2019-02-14 16:37:02,316 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.02 04:37:02" (1/1) ... [2019-02-14 16:37:02,323 WARN L165 Inliner]: Program contained no entry procedure! [2019-02-14 16:37:02,323 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-02-14 16:37:02,323 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-02-14 16:37:02,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-02-14 16:37:02,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-02-14 16:37:02,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-02-14 16:37:02,327 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-02-14 16:37:02,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.02 04:37:02" (1/1) ... [2019-02-14 16:37:02,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.02 04:37:02" (1/1) ... [2019-02-14 16:37:02,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.02 04:37:02" (1/1) ... [2019-02-14 16:37:02,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.02 04:37:02" (1/1) ... [2019-02-14 16:37:02,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.02 04:37:02" (1/1) ... [2019-02-14 16:37:02,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.02 04:37:02" (1/1) ... [2019-02-14 16:37:02,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.02 04:37:02" (1/1) ... [2019-02-14 16:37:02,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-02-14 16:37:02,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-02-14 16:37:02,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-02-14 16:37:02,350 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-02-14 16:37:02,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.02 04:37:02" (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 [2019-02-14 16:37:02,420 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-02-14 16:37:02,420 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-02-14 16:37:02,421 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-02-14 16:37:02,814 INFO L278 CfgBuilder]: Using library mode [2019-02-14 16:37:02,814 INFO L286 CfgBuilder]: Removed 0 assue(true) statements. [2019-02-14 16:37:02,815 INFO L202 PluginConnector]: Adding new model divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 04:37:02 BoogieIcfgContainer [2019-02-14 16:37:02,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-02-14 16:37:02,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-02-14 16:37:02,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-02-14 16:37:02,823 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-02-14 16:37:02,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.02 04:37:02" (1/2) ... [2019-02-14 16:37:02,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@689b36f8 and model type divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 04:37:02, skipping insertion in model container [2019-02-14 16:37:02,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divisibilityWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 04:37:02" (2/2) ... [2019-02-14 16:37:02,827 INFO L112 eAbstractionObserver]: Analyzing ICFG divisibilityWithArray.bpl [2019-02-14 16:37:02,838 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-02-14 16:37:02,849 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-02-14 16:37:02,865 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-02-14 16:37:02,896 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-02-14 16:37:02,896 INFO L383 AbstractCegarLoop]: Hoare is true [2019-02-14 16:37:02,896 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-02-14 16:37:02,896 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-02-14 16:37:02,896 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-02-14 16:37:02,897 INFO L387 AbstractCegarLoop]: Difference is false [2019-02-14 16:37:02,897 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-02-14 16:37:02,897 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-02-14 16:37:02,910 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-02-14 16:37:02,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-02-14 16:37:02,916 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:37:02,917 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-02-14 16:37:02,920 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:37:02,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:37:02,926 INFO L82 PathProgramCache]: Analyzing trace with hash 29920, now seen corresponding path program 1 times [2019-02-14 16:37:02,928 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:37:02,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:02,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:37:02,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:02,974 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:37:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:03,594 WARN L181 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 19 [2019-02-14 16:37:03,740 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 [2019-02-14 16:37:03,762 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 [2019-02-14 16:37:03,776 INFO L273 TraceCheckUtils]: 2: Hoare triple {12#(and (< 0 main_n) (<= main_i 4))} assume !(i <= n * 4); {10#false} is VALID [2019-02-14 16:37:03,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:03,781 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-02-14 16:37:03,781 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-02-14 16:37:03,782 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-02-14 16:37:03,787 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-02-14 16:37:03,789 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:37:03,793 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2019-02-14 16:37:03,838 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:03,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-02-14 16:37:03,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-02-14 16:37:03,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-02-14 16:37:03,855 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2019-02-14 16:37:04,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:04,145 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-02-14 16:37:04,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-02-14 16:37:04,145 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-02-14 16:37:04,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:37:04,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-02-14 16:37:04,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2019-02-14 16:37:04,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-02-14 16:37:04,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2019-02-14 16:37:04,154 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 14 transitions. [2019-02-14 16:37:04,186 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:04,196 INFO L225 Difference]: With dead ends: 14 [2019-02-14 16:37:04,197 INFO L226 Difference]: Without dead ends: 7 [2019-02-14 16:37:04,200 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 [2019-02-14 16:37:04,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-02-14 16:37:04,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2019-02-14 16:37:04,310 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:37:04,311 INFO L82 GeneralOperation]: Start isEquivalent. First operand 7 states. Second operand 6 states. [2019-02-14 16:37:04,311 INFO L74 IsIncluded]: Start isIncluded. First operand 7 states. Second operand 6 states. [2019-02-14 16:37:04,312 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 6 states. [2019-02-14 16:37:04,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:04,315 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-02-14 16:37:04,315 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-02-14 16:37:04,315 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:04,317 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:04,318 INFO L74 IsIncluded]: Start isIncluded. First operand 6 states. Second operand 7 states. [2019-02-14 16:37:04,318 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 7 states. [2019-02-14 16:37:04,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:04,320 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-02-14 16:37:04,320 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-02-14 16:37:04,321 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:04,321 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:04,321 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:37:04,322 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:37:04,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-02-14 16:37:04,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-02-14 16:37:04,329 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 3 [2019-02-14 16:37:04,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:37:04,329 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-02-14 16:37:04,329 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-02-14 16:37:04,332 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2019-02-14 16:37:04,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-02-14 16:37:04,333 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:37:04,333 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2019-02-14 16:37:04,333 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:37:04,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:37:04,334 INFO L82 PathProgramCache]: Analyzing trace with hash 28754210, now seen corresponding path program 1 times [2019-02-14 16:37:04,334 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:37:04,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:04,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:37:04,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:04,337 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:37:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:04,998 WARN L181 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 17 [2019-02-14 16:37:05,164 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 [2019-02-14 16:37:05,166 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 [2019-02-14 16:37:05,167 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 [2019-02-14 16:37:05,187 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 [2019-02-14 16:37:05,199 INFO L273 TraceCheckUtils]: 4: Hoare triple {59#(and (<= main_i 8) (< 1 main_n))} assume !(i <= n * 4); {55#false} is VALID [2019-02-14 16:37:05,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:05,200 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:05,201 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:37:05,202 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 6 with the following transitions: [2019-02-14 16:37:05,203 INFO L207 CegarAbsIntRunner]: [0], [4], [5], [6] [2019-02-14 16:37:05,253 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2019-02-14 16:37:05,254 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2019-02-14 16:37:08,812 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-02-14 16:37:08,814 INFO L272 AbstractInterpreter]: Visited 4 different actions 25 times. Merged at 3 different actions 21 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2019-02-14 16:37:08,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:37:08,820 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-02-14 16:37:08,820 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:08,820 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 [2019-02-14 16:37:08,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:37:08,837 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:37:08,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:08,854 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:37:08,888 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 [2019-02-14 16:37:08,892 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:08,911 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:08,911 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:37:08,914 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:08,914 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_5]. (and (= (store v_main_a_5 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:37:08,915 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:37:09,046 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 [2019-02-14 16:37:09,064 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:09,084 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:09,085 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:37:09,096 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 [2019-02-14 16:37:09,097 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 [2019-02-14 16:37:09,098 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 [2019-02-14 16:37:09,099 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 [2019-02-14 16:37:09,100 INFO L273 TraceCheckUtils]: 4: Hoare triple {59#(and (<= main_i 8) (< 1 main_n))} assume !(i <= n * 4); {55#false} is VALID [2019-02-14 16:37:09,100 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:09,101 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:37:09,401 WARN L181 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2019-02-14 16:37:09,556 INFO L273 TraceCheckUtils]: 4: Hoare triple {78#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {55#false} is VALID [2019-02-14 16:37:09,557 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 [2019-02-14 16:37:09,558 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 [2019-02-14 16:37:09,560 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 [2019-02-14 16:37:09,561 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 [2019-02-14 16:37:09,562 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:09,583 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:37:09,584 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2019-02-14 16:37:09,584 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:37:09,584 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 5 [2019-02-14 16:37:09,585 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:37:09,585 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2019-02-14 16:37:09,602 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:09,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-02-14 16:37:09,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-02-14 16:37:09,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2019-02-14 16:37:09,604 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 9 states. [2019-02-14 16:37:09,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:09,952 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-02-14 16:37:09,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-02-14 16:37:09,952 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 5 [2019-02-14 16:37:09,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:37:09,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-02-14 16:37:09,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10 transitions. [2019-02-14 16:37:09,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-02-14 16:37:09,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10 transitions. [2019-02-14 16:37:09,956 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 10 transitions. [2019-02-14 16:37:09,965 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:09,966 INFO L225 Difference]: With dead ends: 10 [2019-02-14 16:37:09,966 INFO L226 Difference]: Without dead ends: 9 [2019-02-14 16:37:09,968 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2019-02-14 16:37:09,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-02-14 16:37:09,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2019-02-14 16:37:09,975 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:37:09,975 INFO L82 GeneralOperation]: Start isEquivalent. First operand 9 states. Second operand 8 states. [2019-02-14 16:37:09,976 INFO L74 IsIncluded]: Start isIncluded. First operand 9 states. Second operand 8 states. [2019-02-14 16:37:09,976 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 8 states. [2019-02-14 16:37:09,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:09,977 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-02-14 16:37:09,978 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-02-14 16:37:09,978 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:09,978 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:09,978 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states. Second operand 9 states. [2019-02-14 16:37:09,978 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 9 states. [2019-02-14 16:37:09,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:09,979 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-02-14 16:37:09,979 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-02-14 16:37:09,980 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:09,980 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:09,980 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:37:09,980 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:37:09,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-02-14 16:37:09,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-02-14 16:37:09,981 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2019-02-14 16:37:09,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:37:09,981 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-02-14 16:37:09,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-02-14 16:37:09,982 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-02-14 16:37:09,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-02-14 16:37:09,982 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:37:09,982 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 1, 1] [2019-02-14 16:37:09,982 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:37:09,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:37:09,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1862993124, now seen corresponding path program 2 times [2019-02-14 16:37:09,983 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:37:09,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:09,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:37:09,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:09,984 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:37:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:10,344 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 [2019-02-14 16:37:10,346 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 [2019-02-14 16:37:10,347 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 [2019-02-14 16:37:10,348 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 [2019-02-14 16:37:10,350 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 [2019-02-14 16:37:10,351 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 [2019-02-14 16:37:10,352 INFO L273 TraceCheckUtils]: 6: Hoare triple {142#(and (< 2 main_n) (<= main_i 12))} assume !(i <= n * 4); {137#false} is VALID [2019-02-14 16:37:10,353 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:10,353 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:10,353 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:37:10,353 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:37:10,354 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:37:10,354 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:10,354 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 [2019-02-14 16:37:10,363 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:37:10,364 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:37:10,369 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-02-14 16:37:10,369 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:37:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:10,374 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:37:10,388 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 [2019-02-14 16:37:10,391 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:10,398 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:10,398 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:37:10,399 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:10,400 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_6]. (and (= (store v_main_a_6 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:37:10,400 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:37:10,514 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 [2019-02-14 16:37:10,524 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:10,529 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:10,530 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:37:10,540 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 [2019-02-14 16:37:10,546 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 [2019-02-14 16:37:10,547 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 [2019-02-14 16:37:10,548 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 [2019-02-14 16:37:10,548 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 [2019-02-14 16:37:10,549 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 [2019-02-14 16:37:10,550 INFO L273 TraceCheckUtils]: 6: Hoare triple {142#(and (< 2 main_n) (<= main_i 12))} assume !(i <= n * 4); {137#false} is VALID [2019-02-14 16:37:10,550 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:10,550 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:37:10,694 INFO L273 TraceCheckUtils]: 6: Hoare triple {168#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {137#false} is VALID [2019-02-14 16:37:10,695 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 [2019-02-14 16:37:10,696 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 [2019-02-14 16:37:10,697 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 [2019-02-14 16:37:10,698 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 [2019-02-14 16:37:10,700 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 [2019-02-14 16:37:10,705 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 [2019-02-14 16:37:10,705 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:10,723 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:37:10,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 14 [2019-02-14 16:37:10,724 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:37:10,724 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2019-02-14 16:37:10,724 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:37:10,724 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2019-02-14 16:37:10,738 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:10,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-02-14 16:37:10,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-02-14 16:37:10,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2019-02-14 16:37:10,740 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 11 states. [2019-02-14 16:37:10,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:10,908 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-02-14 16:37:10,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-02-14 16:37:10,909 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2019-02-14 16:37:10,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:37:10,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-02-14 16:37:10,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2019-02-14 16:37:10,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-02-14 16:37:10,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2019-02-14 16:37:10,912 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 12 transitions. [2019-02-14 16:37:10,922 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:10,923 INFO L225 Difference]: With dead ends: 12 [2019-02-14 16:37:10,923 INFO L226 Difference]: Without dead ends: 11 [2019-02-14 16:37:10,924 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2019-02-14 16:37:10,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-02-14 16:37:10,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2019-02-14 16:37:10,948 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:37:10,948 INFO L82 GeneralOperation]: Start isEquivalent. First operand 11 states. Second operand 10 states. [2019-02-14 16:37:10,949 INFO L74 IsIncluded]: Start isIncluded. First operand 11 states. Second operand 10 states. [2019-02-14 16:37:10,949 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 10 states. [2019-02-14 16:37:10,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:10,950 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2019-02-14 16:37:10,951 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-02-14 16:37:10,951 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:10,951 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:10,951 INFO L74 IsIncluded]: Start isIncluded. First operand 10 states. Second operand 11 states. [2019-02-14 16:37:10,951 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 11 states. [2019-02-14 16:37:10,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:10,952 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2019-02-14 16:37:10,953 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-02-14 16:37:10,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:10,953 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:10,953 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:37:10,953 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:37:10,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-02-14 16:37:10,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-02-14 16:37:10,954 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2019-02-14 16:37:10,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:37:10,955 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-02-14 16:37:10,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-02-14 16:37:10,955 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-02-14 16:37:10,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-02-14 16:37:10,955 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:37:10,955 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 1, 1] [2019-02-14 16:37:10,956 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:37:10,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:37:10,956 INFO L82 PathProgramCache]: Analyzing trace with hash -664969178, now seen corresponding path program 3 times [2019-02-14 16:37:10,956 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:37:10,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:10,957 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:37:10,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:10,958 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:37:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:11,278 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 [2019-02-14 16:37:11,279 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 [2019-02-14 16:37:11,281 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 [2019-02-14 16:37:11,282 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 [2019-02-14 16:37:11,283 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 [2019-02-14 16:37:11,284 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 [2019-02-14 16:37:11,286 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 [2019-02-14 16:37:11,287 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 [2019-02-14 16:37:11,288 INFO L273 TraceCheckUtils]: 8: Hoare triple {250#(and (<= main_i 16) (<= 4 main_n))} assume !(i <= n * 4); {244#false} is VALID [2019-02-14 16:37:11,289 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:11,289 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:11,290 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:37:11,290 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:37:11,290 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:37:11,291 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:11,291 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 [2019-02-14 16:37:11,300 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:37:11,301 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:37:11,310 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:37:11,311 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:37:11,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:11,314 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:37:11,385 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 [2019-02-14 16:37:11,386 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:11,390 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:11,390 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:37:11,393 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:11,393 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_7]. (and (= main_i 0) (= (store v_main_a_7 (* 4 main_n) 23) main_a)) [2019-02-14 16:37:11,394 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:37:11,533 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 [2019-02-14 16:37:11,534 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:11,555 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:11,555 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:37:11,567 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 [2019-02-14 16:37:11,568 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 [2019-02-14 16:37:11,568 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 [2019-02-14 16:37:11,569 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 [2019-02-14 16:37:11,574 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 [2019-02-14 16:37:11,575 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 [2019-02-14 16:37:11,575 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 [2019-02-14 16:37:11,576 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 [2019-02-14 16:37:11,576 INFO L273 TraceCheckUtils]: 8: Hoare triple {250#(and (<= main_i 16) (<= 4 main_n))} assume !(i <= n * 4); {244#false} is VALID [2019-02-14 16:37:11,577 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:11,577 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:37:11,792 INFO L273 TraceCheckUtils]: 8: Hoare triple {283#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {244#false} is VALID [2019-02-14 16:37:11,793 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 [2019-02-14 16:37:11,794 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 [2019-02-14 16:37:11,795 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 [2019-02-14 16:37:11,796 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 [2019-02-14 16:37:11,797 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 [2019-02-14 16:37:11,800 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 [2019-02-14 16:37:11,802 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 [2019-02-14 16:37:11,803 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 [2019-02-14 16:37:11,804 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:11,829 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:37:11,830 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 17 [2019-02-14 16:37:11,830 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:37:11,830 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 9 [2019-02-14 16:37:11,830 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:37:11,831 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2019-02-14 16:37:11,850 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:11,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-02-14 16:37:11,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-02-14 16:37:11,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2019-02-14 16:37:11,852 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 13 states. [2019-02-14 16:37:12,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:12,098 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-02-14 16:37:12,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-02-14 16:37:12,099 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 9 [2019-02-14 16:37:12,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:37:12,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-02-14 16:37:12,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 14 transitions. [2019-02-14 16:37:12,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-02-14 16:37:12,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 14 transitions. [2019-02-14 16:37:12,101 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 14 transitions. [2019-02-14 16:37:12,155 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:12,157 INFO L225 Difference]: With dead ends: 14 [2019-02-14 16:37:12,157 INFO L226 Difference]: Without dead ends: 13 [2019-02-14 16:37:12,158 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2019-02-14 16:37:12,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-02-14 16:37:12,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-02-14 16:37:12,172 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:37:12,172 INFO L82 GeneralOperation]: Start isEquivalent. First operand 13 states. Second operand 12 states. [2019-02-14 16:37:12,172 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand 12 states. [2019-02-14 16:37:12,172 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 12 states. [2019-02-14 16:37:12,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:12,174 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-02-14 16:37:12,174 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-02-14 16:37:12,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:12,174 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:12,174 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand 13 states. [2019-02-14 16:37:12,175 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 13 states. [2019-02-14 16:37:12,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:12,176 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-02-14 16:37:12,176 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-02-14 16:37:12,176 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:12,176 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:12,177 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:37:12,177 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:37:12,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-02-14 16:37:12,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-02-14 16:37:12,178 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2019-02-14 16:37:12,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:37:12,178 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-02-14 16:37:12,178 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-02-14 16:37:12,178 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-02-14 16:37:12,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-02-14 16:37:12,179 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:37:12,179 INFO L402 BasicCegarLoop]: trace histogram [5, 4, 1, 1] [2019-02-14 16:37:12,179 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:37:12,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:37:12,180 INFO L82 PathProgramCache]: Analyzing trace with hash 914748136, now seen corresponding path program 4 times [2019-02-14 16:37:12,180 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:37:12,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:12,181 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:37:12,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:12,181 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:37:12,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:12,574 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 [2019-02-14 16:37:12,576 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 [2019-02-14 16:37:12,578 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 [2019-02-14 16:37:12,579 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 [2019-02-14 16:37:12,580 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 [2019-02-14 16:37:12,582 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 [2019-02-14 16:37:12,583 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 [2019-02-14 16:37:12,584 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 [2019-02-14 16:37:12,586 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 [2019-02-14 16:37:12,588 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 [2019-02-14 16:37:12,589 INFO L273 TraceCheckUtils]: 10: Hoare triple {383#(and (<= main_i 20) (<= 5 main_n))} assume !(i <= n * 4); {376#false} is VALID [2019-02-14 16:37:12,592 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:12,593 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:12,593 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:37:12,593 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:37:12,593 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:37:12,593 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:12,594 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 [2019-02-14 16:37:12,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:37:12,603 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:37:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:12,618 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:37:12,745 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 [2019-02-14 16:37:12,767 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:12,785 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:12,785 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:37:12,791 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:12,791 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_8]. (and (= main_i 0) (= main_a (store v_main_a_8 (* 4 main_n) 23))) [2019-02-14 16:37:12,791 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:37:12,997 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 [2019-02-14 16:37:12,999 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:13,005 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:13,006 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:37:13,020 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 [2019-02-14 16:37:13,021 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 [2019-02-14 16:37:13,021 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 [2019-02-14 16:37:13,022 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 [2019-02-14 16:37:13,023 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 [2019-02-14 16:37:13,024 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 [2019-02-14 16:37:13,025 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 [2019-02-14 16:37:13,027 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 [2019-02-14 16:37:13,028 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 [2019-02-14 16:37:13,029 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 [2019-02-14 16:37:13,030 INFO L273 TraceCheckUtils]: 10: Hoare triple {383#(and (<= main_i 20) (<= 5 main_n))} assume !(i <= n * 4); {376#false} is VALID [2019-02-14 16:37:13,030 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:13,031 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:37:13,241 INFO L273 TraceCheckUtils]: 10: Hoare triple {423#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {376#false} is VALID [2019-02-14 16:37:13,244 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 [2019-02-14 16:37:13,245 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 [2019-02-14 16:37:13,246 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 [2019-02-14 16:37:13,246 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 [2019-02-14 16:37:13,247 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 [2019-02-14 16:37:13,247 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 [2019-02-14 16:37:13,249 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 [2019-02-14 16:37:13,249 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 [2019-02-14 16:37:13,251 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 [2019-02-14 16:37:13,252 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 [2019-02-14 16:37:13,253 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:13,272 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:37:13,272 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 20 [2019-02-14 16:37:13,272 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:37:13,273 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 11 [2019-02-14 16:37:13,273 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:37:13,273 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states. [2019-02-14 16:37:13,296 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:13,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-02-14 16:37:13,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-02-14 16:37:13,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2019-02-14 16:37:13,297 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 15 states. [2019-02-14 16:37:13,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:13,676 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-02-14 16:37:13,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-02-14 16:37:13,676 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 11 [2019-02-14 16:37:13,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:37:13,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-02-14 16:37:13,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 16 transitions. [2019-02-14 16:37:13,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-02-14 16:37:13,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 16 transitions. [2019-02-14 16:37:13,679 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 16 transitions. [2019-02-14 16:37:13,694 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:13,695 INFO L225 Difference]: With dead ends: 16 [2019-02-14 16:37:13,695 INFO L226 Difference]: Without dead ends: 15 [2019-02-14 16:37:13,696 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2019-02-14 16:37:13,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-02-14 16:37:13,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2019-02-14 16:37:13,709 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:37:13,709 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand 14 states. [2019-02-14 16:37:13,709 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 14 states. [2019-02-14 16:37:13,710 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 14 states. [2019-02-14 16:37:13,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:13,712 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-02-14 16:37:13,712 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-02-14 16:37:13,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:13,713 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:13,713 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand 15 states. [2019-02-14 16:37:13,713 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 15 states. [2019-02-14 16:37:13,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:13,714 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-02-14 16:37:13,714 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-02-14 16:37:13,714 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:13,714 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:13,715 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:37:13,715 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:37:13,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-02-14 16:37:13,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-02-14 16:37:13,716 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2019-02-14 16:37:13,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:37:13,716 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-02-14 16:37:13,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-02-14 16:37:13,716 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-02-14 16:37:13,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-02-14 16:37:13,717 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:37:13,717 INFO L402 BasicCegarLoop]: trace histogram [6, 5, 1, 1] [2019-02-14 16:37:13,717 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:37:13,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:37:13,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1395335894, now seen corresponding path program 5 times [2019-02-14 16:37:13,717 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:37:13,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:13,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:37:13,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:13,718 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:37:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:14,185 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 [2019-02-14 16:37:14,187 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 [2019-02-14 16:37:14,188 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 [2019-02-14 16:37:14,189 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 [2019-02-14 16:37:14,190 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 [2019-02-14 16:37:14,191 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 [2019-02-14 16:37:14,192 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 [2019-02-14 16:37:14,194 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 [2019-02-14 16:37:14,200 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 [2019-02-14 16:37:14,201 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 [2019-02-14 16:37:14,202 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 [2019-02-14 16:37:14,203 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 [2019-02-14 16:37:14,204 INFO L273 TraceCheckUtils]: 12: Hoare triple {541#(and (< 5 main_n) (<= main_i 24))} assume !(i <= n * 4); {533#false} is VALID [2019-02-14 16:37:14,205 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:14,205 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:14,205 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:37:14,206 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:37:14,206 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:37:14,206 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:14,206 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 [2019-02-14 16:37:14,224 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:37:14,225 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:37:14,250 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2019-02-14 16:37:14,250 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:37:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:14,258 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:37:14,266 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 [2019-02-14 16:37:14,270 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:14,283 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:14,283 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:37:14,285 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:14,285 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_9]. (and (= (store v_main_a_9 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:37:14,285 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:37:14,497 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 [2019-02-14 16:37:14,500 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:14,505 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:14,505 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:37:14,508 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:14,508 WARN L398 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)))) [2019-02-14 16:37:14,508 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 20 .cse0)) (<= main_i 24) (<= 20 .cse0))) [2019-02-14 16:37:14,521 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 [2019-02-14 16:37:14,522 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 [2019-02-14 16:37:14,522 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 [2019-02-14 16:37:14,523 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 [2019-02-14 16:37:14,523 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 [2019-02-14 16:37:14,524 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 [2019-02-14 16:37:14,525 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 [2019-02-14 16:37:14,525 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 [2019-02-14 16:37:14,526 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 [2019-02-14 16:37:14,527 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 [2019-02-14 16:37:14,543 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 [2019-02-14 16:37:14,544 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 [2019-02-14 16:37:14,545 INFO L273 TraceCheckUtils]: 12: Hoare triple {541#(and (< 5 main_n) (<= main_i 24))} assume !(i <= n * 4); {533#false} is VALID [2019-02-14 16:37:14,546 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:14,546 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:37:14,787 INFO L273 TraceCheckUtils]: 12: Hoare triple {588#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {533#false} is VALID [2019-02-14 16:37:14,788 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 [2019-02-14 16:37:14,790 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 [2019-02-14 16:37:14,794 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 [2019-02-14 16:37:14,794 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 [2019-02-14 16:37:14,795 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 [2019-02-14 16:37:14,795 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 [2019-02-14 16:37:14,796 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 [2019-02-14 16:37:14,797 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 [2019-02-14 16:37:14,797 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 [2019-02-14 16:37:14,798 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 [2019-02-14 16:37:14,799 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 [2019-02-14 16:37:14,800 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 [2019-02-14 16:37:14,801 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:14,821 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:37:14,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 23 [2019-02-14 16:37:14,821 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:37:14,821 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 13 [2019-02-14 16:37:14,822 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:37:14,822 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states. [2019-02-14 16:37:14,849 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:14,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-02-14 16:37:14,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-02-14 16:37:14,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2019-02-14 16:37:14,850 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 17 states. [2019-02-14 16:37:15,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:15,301 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-02-14 16:37:15,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-02-14 16:37:15,302 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 13 [2019-02-14 16:37:15,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:37:15,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-02-14 16:37:15,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 18 transitions. [2019-02-14 16:37:15,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-02-14 16:37:15,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 18 transitions. [2019-02-14 16:37:15,306 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 18 transitions. [2019-02-14 16:37:15,327 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:15,328 INFO L225 Difference]: With dead ends: 18 [2019-02-14 16:37:15,329 INFO L226 Difference]: Without dead ends: 17 [2019-02-14 16:37:15,330 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2019-02-14 16:37:15,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-02-14 16:37:15,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-02-14 16:37:15,346 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:37:15,346 INFO L82 GeneralOperation]: Start isEquivalent. First operand 17 states. Second operand 16 states. [2019-02-14 16:37:15,346 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand 16 states. [2019-02-14 16:37:15,346 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 16 states. [2019-02-14 16:37:15,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:15,348 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2019-02-14 16:37:15,348 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-02-14 16:37:15,348 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:15,348 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:15,348 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 17 states. [2019-02-14 16:37:15,349 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 17 states. [2019-02-14 16:37:15,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:15,350 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2019-02-14 16:37:15,350 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-02-14 16:37:15,350 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:15,350 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:15,350 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:37:15,351 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:37:15,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-02-14 16:37:15,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-02-14 16:37:15,352 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2019-02-14 16:37:15,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:37:15,352 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-02-14 16:37:15,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-02-14 16:37:15,352 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-02-14 16:37:15,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-02-14 16:37:15,353 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:37:15,353 INFO L402 BasicCegarLoop]: trace histogram [7, 6, 1, 1] [2019-02-14 16:37:15,353 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:37:15,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:37:15,353 INFO L82 PathProgramCache]: Analyzing trace with hash -887996692, now seen corresponding path program 6 times [2019-02-14 16:37:15,354 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:37:15,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:15,355 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:37:15,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:15,355 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:37:15,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:15,877 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 [2019-02-14 16:37:15,879 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 [2019-02-14 16:37:15,880 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 [2019-02-14 16:37:15,881 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 [2019-02-14 16:37:15,882 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 [2019-02-14 16:37:15,883 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 [2019-02-14 16:37:15,884 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 [2019-02-14 16:37:15,885 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 [2019-02-14 16:37:15,886 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 [2019-02-14 16:37:15,887 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 [2019-02-14 16:37:15,888 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 [2019-02-14 16:37:15,889 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 [2019-02-14 16:37:15,891 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 [2019-02-14 16:37:15,892 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 [2019-02-14 16:37:15,893 INFO L273 TraceCheckUtils]: 14: Hoare triple {724#(and (<= 7 main_n) (<= main_i 28))} assume !(i <= n * 4); {715#false} is VALID [2019-02-14 16:37:15,895 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:15,895 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:15,895 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:37:15,896 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:37:15,896 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:37:15,896 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:15,896 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 [2019-02-14 16:37:15,912 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:37:15,912 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:37:15,921 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:37:15,921 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:37:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:15,925 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:37:15,945 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 [2019-02-14 16:37:15,946 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:15,952 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:15,953 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:37:15,954 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:15,955 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_10]. (and (= main_i 0) (= main_a (store v_main_a_10 (* 4 main_n) 23))) [2019-02-14 16:37:15,955 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:37:16,198 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 [2019-02-14 16:37:16,201 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:16,207 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:16,208 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:37:16,210 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:16,210 WARN L398 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))) [2019-02-14 16:37:16,211 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 24 .cse0) (not (= 24 .cse0)) (<= main_i 28))) [2019-02-14 16:37:16,237 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 [2019-02-14 16:37:16,238 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 [2019-02-14 16:37:16,239 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 [2019-02-14 16:37:16,240 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 [2019-02-14 16:37:16,240 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 [2019-02-14 16:37:16,242 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 [2019-02-14 16:37:16,246 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 [2019-02-14 16:37:16,246 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 [2019-02-14 16:37:16,247 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 [2019-02-14 16:37:16,247 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 [2019-02-14 16:37:16,248 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 [2019-02-14 16:37:16,248 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 [2019-02-14 16:37:16,249 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 [2019-02-14 16:37:16,250 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 [2019-02-14 16:37:16,250 INFO L273 TraceCheckUtils]: 14: Hoare triple {724#(and (<= 7 main_n) (<= main_i 28))} assume !(i <= n * 4); {715#false} is VALID [2019-02-14 16:37:16,251 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:16,251 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:37:16,568 INFO L273 TraceCheckUtils]: 14: Hoare triple {778#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {715#false} is VALID [2019-02-14 16:37:16,569 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 [2019-02-14 16:37:16,571 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 [2019-02-14 16:37:16,572 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 [2019-02-14 16:37:16,573 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 [2019-02-14 16:37:16,574 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 [2019-02-14 16:37:16,575 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 [2019-02-14 16:37:16,576 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 [2019-02-14 16:37:16,577 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 [2019-02-14 16:37:16,578 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 [2019-02-14 16:37:16,579 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 [2019-02-14 16:37:16,580 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 [2019-02-14 16:37:16,581 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 [2019-02-14 16:37:16,582 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 [2019-02-14 16:37:16,584 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 [2019-02-14 16:37:16,585 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:16,607 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:37:16,607 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 26 [2019-02-14 16:37:16,607 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:37:16,607 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 15 [2019-02-14 16:37:16,608 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:37:16,608 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 19 states. [2019-02-14 16:37:16,644 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:16,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-02-14 16:37:16,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-02-14 16:37:16,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2019-02-14 16:37:16,646 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 19 states. [2019-02-14 16:37:17,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:17,140 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2019-02-14 16:37:17,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-02-14 16:37:17,140 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 15 [2019-02-14 16:37:17,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:37:17,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-02-14 16:37:17,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 20 transitions. [2019-02-14 16:37:17,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-02-14 16:37:17,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 20 transitions. [2019-02-14 16:37:17,144 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states and 20 transitions. [2019-02-14 16:37:17,207 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:17,208 INFO L225 Difference]: With dead ends: 20 [2019-02-14 16:37:17,208 INFO L226 Difference]: Without dead ends: 19 [2019-02-14 16:37:17,208 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2019-02-14 16:37:17,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-02-14 16:37:17,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2019-02-14 16:37:17,225 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:37:17,225 INFO L82 GeneralOperation]: Start isEquivalent. First operand 19 states. Second operand 18 states. [2019-02-14 16:37:17,225 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 18 states. [2019-02-14 16:37:17,225 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 18 states. [2019-02-14 16:37:17,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:17,227 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-02-14 16:37:17,227 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-02-14 16:37:17,228 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:17,228 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:17,228 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand 19 states. [2019-02-14 16:37:17,228 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 19 states. [2019-02-14 16:37:17,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:17,229 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-02-14 16:37:17,230 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-02-14 16:37:17,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:17,230 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:17,230 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:37:17,230 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:37:17,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-02-14 16:37:17,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-02-14 16:37:17,231 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2019-02-14 16:37:17,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:37:17,232 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-02-14 16:37:17,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-02-14 16:37:17,232 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-02-14 16:37:17,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-02-14 16:37:17,232 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:37:17,233 INFO L402 BasicCegarLoop]: trace histogram [8, 7, 1, 1] [2019-02-14 16:37:17,233 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:37:17,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:37:17,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1333671982, now seen corresponding path program 7 times [2019-02-14 16:37:17,233 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:37:17,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:17,234 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:37:17,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:17,234 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:37:17,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:17,836 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 [2019-02-14 16:37:17,838 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 [2019-02-14 16:37:17,839 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 [2019-02-14 16:37:17,840 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 [2019-02-14 16:37:17,841 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 [2019-02-14 16:37:17,842 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 [2019-02-14 16:37:17,843 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 [2019-02-14 16:37:17,845 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 [2019-02-14 16:37:17,845 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 [2019-02-14 16:37:17,848 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 [2019-02-14 16:37:17,849 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 [2019-02-14 16:37:17,850 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 [2019-02-14 16:37:17,850 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 [2019-02-14 16:37:17,851 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 [2019-02-14 16:37:17,852 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 [2019-02-14 16:37:17,853 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 [2019-02-14 16:37:17,854 INFO L273 TraceCheckUtils]: 16: Hoare triple {932#(and (<= main_i 32) (<= 8 main_n))} assume !(i <= n * 4); {922#false} is VALID [2019-02-14 16:37:17,857 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:17,857 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:17,858 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:37:17,858 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:37:17,858 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:37:17,858 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:17,858 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 [2019-02-14 16:37:17,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:37:17,869 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:37:17,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:17,886 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:37:17,896 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 [2019-02-14 16:37:17,900 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:17,905 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:17,906 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:37:17,908 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:17,909 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_11]. (and (= (store v_main_a_11 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:37:17,909 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:37:18,449 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 [2019-02-14 16:37:18,458 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:18,462 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:18,462 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:37:18,465 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:18,465 WARN L398 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))) [2019-02-14 16:37:18,465 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 32) (not (= 28 .cse0)) (<= 28 .cse0))) [2019-02-14 16:37:18,479 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 [2019-02-14 16:37:18,480 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 [2019-02-14 16:37:18,481 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 [2019-02-14 16:37:18,482 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 [2019-02-14 16:37:18,483 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 [2019-02-14 16:37:18,491 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 [2019-02-14 16:37:18,492 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 [2019-02-14 16:37:18,492 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 [2019-02-14 16:37:18,493 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 [2019-02-14 16:37:18,493 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 [2019-02-14 16:37:18,494 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 [2019-02-14 16:37:18,494 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 [2019-02-14 16:37:18,495 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 [2019-02-14 16:37:18,495 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 [2019-02-14 16:37:18,496 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 [2019-02-14 16:37:18,497 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 [2019-02-14 16:37:18,498 INFO L273 TraceCheckUtils]: 16: Hoare triple {932#(and (<= main_i 32) (<= 8 main_n))} assume !(i <= n * 4); {922#false} is VALID [2019-02-14 16:37:18,500 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:18,500 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:37:18,942 INFO L273 TraceCheckUtils]: 16: Hoare triple {993#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {922#false} is VALID [2019-02-14 16:37:18,944 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 [2019-02-14 16:37:18,945 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 [2019-02-14 16:37:18,946 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 [2019-02-14 16:37:18,947 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 [2019-02-14 16:37:18,948 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 [2019-02-14 16:37:18,948 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 [2019-02-14 16:37:18,950 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 [2019-02-14 16:37:18,951 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 [2019-02-14 16:37:18,952 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 [2019-02-14 16:37:18,953 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 [2019-02-14 16:37:18,954 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 [2019-02-14 16:37:18,955 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 [2019-02-14 16:37:18,956 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 [2019-02-14 16:37:18,957 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 [2019-02-14 16:37:18,958 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 [2019-02-14 16:37:18,960 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 [2019-02-14 16:37:18,962 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:18,980 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:37:18,981 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 29 [2019-02-14 16:37:18,981 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:37:18,981 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 17 [2019-02-14 16:37:18,981 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:37:18,982 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 21 states. [2019-02-14 16:37:19,035 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:19,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-02-14 16:37:19,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-02-14 16:37:19,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=772, Unknown=0, NotChecked=0, Total=930 [2019-02-14 16:37:19,037 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 21 states. [2019-02-14 16:37:19,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:19,816 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2019-02-14 16:37:19,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-02-14 16:37:19,816 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 17 [2019-02-14 16:37:19,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:37:19,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-02-14 16:37:19,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 22 transitions. [2019-02-14 16:37:19,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-02-14 16:37:19,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 22 transitions. [2019-02-14 16:37:19,819 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 22 transitions. [2019-02-14 16:37:19,842 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:19,843 INFO L225 Difference]: With dead ends: 22 [2019-02-14 16:37:19,844 INFO L226 Difference]: Without dead ends: 21 [2019-02-14 16:37:19,844 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=158, Invalid=772, Unknown=0, NotChecked=0, Total=930 [2019-02-14 16:37:19,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-02-14 16:37:19,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2019-02-14 16:37:19,865 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:37:19,865 INFO L82 GeneralOperation]: Start isEquivalent. First operand 21 states. Second operand 20 states. [2019-02-14 16:37:19,865 INFO L74 IsIncluded]: Start isIncluded. First operand 21 states. Second operand 20 states. [2019-02-14 16:37:19,866 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 20 states. [2019-02-14 16:37:19,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:19,867 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2019-02-14 16:37:19,867 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-02-14 16:37:19,867 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:19,867 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:19,868 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand 21 states. [2019-02-14 16:37:19,868 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 21 states. [2019-02-14 16:37:19,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:19,869 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2019-02-14 16:37:19,869 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-02-14 16:37:19,869 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:19,870 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:19,870 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:37:19,870 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:37:19,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-02-14 16:37:19,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-02-14 16:37:19,871 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 17 [2019-02-14 16:37:19,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:37:19,871 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-02-14 16:37:19,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-02-14 16:37:19,872 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-02-14 16:37:19,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-02-14 16:37:19,872 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:37:19,872 INFO L402 BasicCegarLoop]: trace histogram [9, 8, 1, 1] [2019-02-14 16:37:19,873 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:37:19,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:37:19,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1758521584, now seen corresponding path program 8 times [2019-02-14 16:37:19,873 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:37:19,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:19,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:37:19,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:19,874 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:37:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:20,381 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 [2019-02-14 16:37:20,382 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 [2019-02-14 16:37:20,384 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 [2019-02-14 16:37:20,385 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 [2019-02-14 16:37:20,386 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 [2019-02-14 16:37:20,387 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 [2019-02-14 16:37:20,388 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 [2019-02-14 16:37:20,390 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 [2019-02-14 16:37:20,391 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 [2019-02-14 16:37:20,392 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 [2019-02-14 16:37:20,393 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 [2019-02-14 16:37:20,395 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 [2019-02-14 16:37:20,396 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 [2019-02-14 16:37:20,397 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 [2019-02-14 16:37:20,398 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 [2019-02-14 16:37:20,400 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 [2019-02-14 16:37:20,403 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 [2019-02-14 16:37:20,404 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 [2019-02-14 16:37:20,405 INFO L273 TraceCheckUtils]: 18: Hoare triple {1165#(and (<= main_i 36) (<= 9 main_n))} assume !(i <= n * 4); {1154#false} is VALID [2019-02-14 16:37:20,407 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:20,407 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:20,407 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:37:20,408 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:37:20,408 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:37:20,408 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:20,408 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 [2019-02-14 16:37:20,421 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:37:20,421 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:37:20,441 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2019-02-14 16:37:20,441 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:37:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:20,446 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:37:20,456 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 [2019-02-14 16:37:20,459 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:20,467 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:20,467 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:37:20,469 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:20,469 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_12]. (and (= (store v_main_a_12 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:37:20,469 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:37:20,781 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 [2019-02-14 16:37:20,782 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:20,788 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:20,789 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:37:20,791 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:20,792 WARN L398 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)))) [2019-02-14 16:37:20,792 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 36) (not (= 32 .cse0)) (<= 32 .cse0))) [2019-02-14 16:37:20,807 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 [2019-02-14 16:37:20,808 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 [2019-02-14 16:37:20,812 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 [2019-02-14 16:37:20,813 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 [2019-02-14 16:37:20,814 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 [2019-02-14 16:37:20,814 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 [2019-02-14 16:37:20,820 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 [2019-02-14 16:37:20,821 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 [2019-02-14 16:37:20,821 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 [2019-02-14 16:37:20,822 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 [2019-02-14 16:37:20,823 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 [2019-02-14 16:37:20,823 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 [2019-02-14 16:37:20,824 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 [2019-02-14 16:37:20,825 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 [2019-02-14 16:37:20,826 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 [2019-02-14 16:37:20,826 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 [2019-02-14 16:37:20,827 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 [2019-02-14 16:37:20,828 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 [2019-02-14 16:37:20,829 INFO L273 TraceCheckUtils]: 18: Hoare triple {1165#(and (<= main_i 36) (<= 9 main_n))} assume !(i <= n * 4); {1154#false} is VALID [2019-02-14 16:37:20,831 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:20,831 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:37:21,287 INFO L273 TraceCheckUtils]: 18: Hoare triple {1233#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {1154#false} is VALID [2019-02-14 16:37:21,288 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 [2019-02-14 16:37:21,289 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 [2019-02-14 16:37:21,290 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 [2019-02-14 16:37:21,290 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 [2019-02-14 16:37:21,292 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 [2019-02-14 16:37:21,292 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 [2019-02-14 16:37:21,293 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 [2019-02-14 16:37:21,294 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 [2019-02-14 16:37:21,295 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 [2019-02-14 16:37:21,296 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 [2019-02-14 16:37:21,297 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 [2019-02-14 16:37:21,298 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 [2019-02-14 16:37:21,299 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 [2019-02-14 16:37:21,299 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 [2019-02-14 16:37:21,301 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 [2019-02-14 16:37:21,301 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 [2019-02-14 16:37:21,302 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 [2019-02-14 16:37:21,303 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 [2019-02-14 16:37:21,306 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:21,325 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:37:21,325 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 32 [2019-02-14 16:37:21,325 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:37:21,326 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 19 [2019-02-14 16:37:21,326 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:37:21,326 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states. [2019-02-14 16:37:21,373 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:21,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-02-14 16:37:21,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-02-14 16:37:21,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=938, Unknown=0, NotChecked=0, Total=1122 [2019-02-14 16:37:21,375 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 23 states. [2019-02-14 16:37:22,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:22,078 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2019-02-14 16:37:22,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-02-14 16:37:22,079 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 19 [2019-02-14 16:37:22,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:37:22,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-02-14 16:37:22,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 24 transitions. [2019-02-14 16:37:22,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-02-14 16:37:22,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 24 transitions. [2019-02-14 16:37:22,082 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 24 transitions. [2019-02-14 16:37:22,104 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:22,105 INFO L225 Difference]: With dead ends: 24 [2019-02-14 16:37:22,105 INFO L226 Difference]: Without dead ends: 23 [2019-02-14 16:37:22,106 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=184, Invalid=938, Unknown=0, NotChecked=0, Total=1122 [2019-02-14 16:37:22,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-02-14 16:37:22,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2019-02-14 16:37:22,130 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:37:22,131 INFO L82 GeneralOperation]: Start isEquivalent. First operand 23 states. Second operand 22 states. [2019-02-14 16:37:22,131 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 22 states. [2019-02-14 16:37:22,131 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 22 states. [2019-02-14 16:37:22,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:22,132 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-02-14 16:37:22,133 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2019-02-14 16:37:22,133 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:22,133 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:22,133 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand 23 states. [2019-02-14 16:37:22,133 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 23 states. [2019-02-14 16:37:22,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:22,134 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-02-14 16:37:22,135 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2019-02-14 16:37:22,135 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:22,135 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:22,135 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:37:22,135 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:37:22,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-02-14 16:37:22,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2019-02-14 16:37:22,136 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 19 [2019-02-14 16:37:22,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:37:22,136 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2019-02-14 16:37:22,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-02-14 16:37:22,137 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2019-02-14 16:37:22,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-02-14 16:37:22,137 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:37:22,137 INFO L402 BasicCegarLoop]: trace histogram [10, 9, 1, 1] [2019-02-14 16:37:22,138 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:37:22,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:37:22,138 INFO L82 PathProgramCache]: Analyzing trace with hash 2017095986, now seen corresponding path program 9 times [2019-02-14 16:37:22,138 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:37:22,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:22,139 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:37:22,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:22,139 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:37:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:22,704 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 [2019-02-14 16:37:22,705 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 [2019-02-14 16:37:22,706 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 [2019-02-14 16:37:22,707 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 [2019-02-14 16:37:22,708 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 [2019-02-14 16:37:22,709 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 [2019-02-14 16:37:22,710 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 [2019-02-14 16:37:22,711 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 [2019-02-14 16:37:22,712 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 [2019-02-14 16:37:22,713 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 [2019-02-14 16:37:22,714 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 [2019-02-14 16:37:22,715 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 [2019-02-14 16:37:22,716 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 [2019-02-14 16:37:22,717 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 [2019-02-14 16:37:22,718 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 [2019-02-14 16:37:22,719 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 [2019-02-14 16:37:22,720 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 [2019-02-14 16:37:22,722 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 [2019-02-14 16:37:22,723 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 [2019-02-14 16:37:22,724 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 [2019-02-14 16:37:22,725 INFO L273 TraceCheckUtils]: 20: Hoare triple {1423#(and (<= main_i 40) (<= 10 main_n))} assume !(i <= n * 4); {1411#false} is VALID [2019-02-14 16:37:22,728 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:22,728 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:22,728 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:37:22,728 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:37:22,728 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:37:22,728 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:22,728 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 [2019-02-14 16:37:22,738 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:37:22,738 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:37:22,748 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:37:22,748 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:37:22,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:22,756 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:37:22,762 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 [2019-02-14 16:37:22,766 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:22,769 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:22,769 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:37:22,772 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:22,772 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_13]. (and (= main_a (store v_main_a_13 (* 4 main_n) 23)) (= main_i 0)) [2019-02-14 16:37:22,772 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:37:23,204 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 [2019-02-14 16:37:23,205 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:23,213 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:23,214 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:37:23,216 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:23,216 WARN L398 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))) [2019-02-14 16:37:23,216 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 40) (not (= 36 .cse0)) (<= 36 .cse0))) [2019-02-14 16:37:23,266 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 [2019-02-14 16:37:23,267 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 [2019-02-14 16:37:23,267 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 [2019-02-14 16:37:23,269 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 [2019-02-14 16:37:23,269 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 [2019-02-14 16:37:23,271 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 [2019-02-14 16:37:23,272 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 [2019-02-14 16:37:23,274 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 [2019-02-14 16:37:23,282 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 [2019-02-14 16:37:23,283 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 [2019-02-14 16:37:23,285 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 [2019-02-14 16:37:23,285 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 [2019-02-14 16:37:23,287 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 [2019-02-14 16:37:23,287 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 [2019-02-14 16:37:23,289 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 [2019-02-14 16:37:23,289 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 [2019-02-14 16:37:23,291 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 [2019-02-14 16:37:23,291 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 [2019-02-14 16:37:23,294 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 [2019-02-14 16:37:23,294 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 [2019-02-14 16:37:23,296 INFO L273 TraceCheckUtils]: 20: Hoare triple {1423#(and (<= main_i 40) (<= 10 main_n))} assume !(i <= n * 4); {1411#false} is VALID [2019-02-14 16:37:23,297 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:23,297 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:37:23,916 INFO L273 TraceCheckUtils]: 20: Hoare triple {1498#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {1411#false} is VALID [2019-02-14 16:37:23,917 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 [2019-02-14 16:37:23,918 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 [2019-02-14 16:37:23,919 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 [2019-02-14 16:37:23,920 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 [2019-02-14 16:37:23,921 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 [2019-02-14 16:37:23,922 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 [2019-02-14 16:37:23,923 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 [2019-02-14 16:37:23,924 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 [2019-02-14 16:37:23,925 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 [2019-02-14 16:37:23,925 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 [2019-02-14 16:37:23,926 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 [2019-02-14 16:37:23,927 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 [2019-02-14 16:37:23,928 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 [2019-02-14 16:37:23,929 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 [2019-02-14 16:37:23,930 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 [2019-02-14 16:37:23,930 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 [2019-02-14 16:37:23,932 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 [2019-02-14 16:37:23,932 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 [2019-02-14 16:37:23,933 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 [2019-02-14 16:37:23,934 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 [2019-02-14 16:37:23,937 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:23,956 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:37:23,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 35 [2019-02-14 16:37:23,957 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:37:23,957 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 21 [2019-02-14 16:37:23,957 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:37:23,957 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 25 states. [2019-02-14 16:37:24,006 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:24,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-02-14 16:37:24,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-02-14 16:37:24,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1120, Unknown=0, NotChecked=0, Total=1332 [2019-02-14 16:37:24,008 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 25 states. [2019-02-14 16:37:24,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:24,859 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2019-02-14 16:37:24,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-02-14 16:37:24,859 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 21 [2019-02-14 16:37:24,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:37:24,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-02-14 16:37:24,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 26 transitions. [2019-02-14 16:37:24,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-02-14 16:37:24,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 26 transitions. [2019-02-14 16:37:24,862 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states and 26 transitions. [2019-02-14 16:37:24,895 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:24,896 INFO L225 Difference]: With dead ends: 26 [2019-02-14 16:37:24,896 INFO L226 Difference]: Without dead ends: 25 [2019-02-14 16:37:24,897 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 [2019-02-14 16:37:24,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-02-14 16:37:24,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2019-02-14 16:37:24,938 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:37:24,938 INFO L82 GeneralOperation]: Start isEquivalent. First operand 25 states. Second operand 24 states. [2019-02-14 16:37:24,938 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand 24 states. [2019-02-14 16:37:24,938 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 24 states. [2019-02-14 16:37:24,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:24,940 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2019-02-14 16:37:24,940 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2019-02-14 16:37:24,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:24,941 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:24,941 INFO L74 IsIncluded]: Start isIncluded. First operand 24 states. Second operand 25 states. [2019-02-14 16:37:24,941 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 25 states. [2019-02-14 16:37:24,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:24,942 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2019-02-14 16:37:24,942 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2019-02-14 16:37:24,942 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:24,942 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:24,942 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:37:24,942 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:37:24,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-02-14 16:37:24,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2019-02-14 16:37:24,943 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 21 [2019-02-14 16:37:24,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:37:24,944 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2019-02-14 16:37:24,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-02-14 16:37:24,944 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2019-02-14 16:37:24,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-02-14 16:37:24,944 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:37:24,944 INFO L402 BasicCegarLoop]: trace histogram [11, 10, 1, 1] [2019-02-14 16:37:24,945 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:37:24,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:37:24,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1398993140, now seen corresponding path program 10 times [2019-02-14 16:37:24,945 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:37:24,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:24,946 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:37:24,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:24,946 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:37:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:25,544 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 [2019-02-14 16:37:25,546 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 [2019-02-14 16:37:25,547 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 [2019-02-14 16:37:25,548 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 [2019-02-14 16:37:25,549 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 [2019-02-14 16:37:25,550 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 [2019-02-14 16:37:25,551 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 [2019-02-14 16:37:25,552 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 [2019-02-14 16:37:25,553 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 [2019-02-14 16:37:25,554 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 [2019-02-14 16:37:25,555 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 [2019-02-14 16:37:25,556 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 [2019-02-14 16:37:25,557 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 [2019-02-14 16:37:25,558 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 [2019-02-14 16:37:25,559 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 [2019-02-14 16:37:25,561 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 [2019-02-14 16:37:25,561 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 [2019-02-14 16:37:25,563 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 [2019-02-14 16:37:25,563 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 [2019-02-14 16:37:25,565 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 [2019-02-14 16:37:25,566 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 [2019-02-14 16:37:25,567 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 [2019-02-14 16:37:25,568 INFO L273 TraceCheckUtils]: 22: Hoare triple {1706#(and (< 10 main_n) (<= main_i 44))} assume !(i <= n * 4); {1693#false} is VALID [2019-02-14 16:37:25,572 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:25,572 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:25,572 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:37:25,572 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:37:25,572 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:37:25,572 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:25,572 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 [2019-02-14 16:37:25,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:37:25,582 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:37:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:25,627 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:37:25,655 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 [2019-02-14 16:37:25,656 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:25,660 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:25,660 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:37:25,663 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:25,663 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_14]. (and (= (store v_main_a_14 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:37:25,663 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:37:26,021 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 [2019-02-14 16:37:26,023 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:26,029 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:26,030 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:37:26,033 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:26,033 WARN L398 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))) [2019-02-14 16:37:26,033 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 40 .cse0) (not (= 40 .cse0)) (<= main_i 44))) [2019-02-14 16:37:26,050 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 [2019-02-14 16:37:26,051 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 [2019-02-14 16:37:26,052 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 [2019-02-14 16:37:26,052 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 [2019-02-14 16:37:26,053 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 [2019-02-14 16:37:26,053 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 [2019-02-14 16:37:26,058 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 [2019-02-14 16:37:26,060 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 [2019-02-14 16:37:26,060 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 [2019-02-14 16:37:26,061 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 [2019-02-14 16:37:26,061 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 [2019-02-14 16:37:26,062 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 [2019-02-14 16:37:26,062 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 [2019-02-14 16:37:26,063 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 [2019-02-14 16:37:26,063 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 [2019-02-14 16:37:26,064 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 [2019-02-14 16:37:26,064 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 [2019-02-14 16:37:26,065 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 [2019-02-14 16:37:26,065 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 [2019-02-14 16:37:26,066 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 [2019-02-14 16:37:26,066 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 [2019-02-14 16:37:26,068 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 [2019-02-14 16:37:26,068 INFO L273 TraceCheckUtils]: 22: Hoare triple {1706#(and (< 10 main_n) (<= main_i 44))} assume !(i <= n * 4); {1693#false} is VALID [2019-02-14 16:37:26,071 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:26,071 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:37:26,731 INFO L273 TraceCheckUtils]: 22: Hoare triple {1788#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {1693#false} is VALID [2019-02-14 16:37:26,732 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 [2019-02-14 16:37:26,733 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 [2019-02-14 16:37:26,733 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 [2019-02-14 16:37:26,734 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 [2019-02-14 16:37:26,735 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 [2019-02-14 16:37:26,735 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 [2019-02-14 16:37:26,737 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 [2019-02-14 16:37:26,737 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 [2019-02-14 16:37:26,738 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 [2019-02-14 16:37:26,739 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 [2019-02-14 16:37:26,740 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 [2019-02-14 16:37:26,741 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 [2019-02-14 16:37:26,742 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 [2019-02-14 16:37:26,743 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 [2019-02-14 16:37:26,744 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 [2019-02-14 16:37:26,745 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 [2019-02-14 16:37:26,746 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 [2019-02-14 16:37:26,746 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 [2019-02-14 16:37:26,748 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 [2019-02-14 16:37:26,748 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 [2019-02-14 16:37:26,749 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 [2019-02-14 16:37:26,750 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 [2019-02-14 16:37:26,754 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:26,773 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:37:26,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 38 [2019-02-14 16:37:26,773 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:37:26,774 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 23 [2019-02-14 16:37:26,774 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:37:26,774 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 27 states. [2019-02-14 16:37:26,831 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:26,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-02-14 16:37:26,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-02-14 16:37:26,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=1318, Unknown=0, NotChecked=0, Total=1560 [2019-02-14 16:37:26,833 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 27 states. [2019-02-14 16:37:27,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:27,839 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2019-02-14 16:37:27,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-02-14 16:37:27,840 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 23 [2019-02-14 16:37:27,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:37:27,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-02-14 16:37:27,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 28 transitions. [2019-02-14 16:37:27,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-02-14 16:37:27,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 28 transitions. [2019-02-14 16:37:27,842 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states and 28 transitions. [2019-02-14 16:37:27,893 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:27,897 INFO L225 Difference]: With dead ends: 28 [2019-02-14 16:37:27,897 INFO L226 Difference]: Without dead ends: 27 [2019-02-14 16:37:27,898 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=242, Invalid=1318, Unknown=0, NotChecked=0, Total=1560 [2019-02-14 16:37:27,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-02-14 16:37:27,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2019-02-14 16:37:27,969 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:37:27,969 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand 26 states. [2019-02-14 16:37:27,969 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 26 states. [2019-02-14 16:37:27,970 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 26 states. [2019-02-14 16:37:27,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:27,971 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2019-02-14 16:37:27,971 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2019-02-14 16:37:27,971 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:27,971 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:27,971 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 27 states. [2019-02-14 16:37:27,971 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 27 states. [2019-02-14 16:37:27,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:27,972 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2019-02-14 16:37:27,972 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2019-02-14 16:37:27,973 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:27,974 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:27,974 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:37:27,975 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:37:27,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-02-14 16:37:27,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2019-02-14 16:37:27,976 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 23 [2019-02-14 16:37:27,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:37:27,976 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2019-02-14 16:37:27,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-02-14 16:37:27,976 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2019-02-14 16:37:27,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-02-14 16:37:27,977 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:37:27,977 INFO L402 BasicCegarLoop]: trace histogram [12, 11, 1, 1] [2019-02-14 16:37:27,977 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:37:27,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:37:27,978 INFO L82 PathProgramCache]: Analyzing trace with hash 107644982, now seen corresponding path program 11 times [2019-02-14 16:37:27,978 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:37:27,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:27,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:37:27,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:27,979 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:37:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:28,906 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 [2019-02-14 16:37:28,908 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 [2019-02-14 16:37:28,909 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 [2019-02-14 16:37:28,910 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 [2019-02-14 16:37:28,910 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 [2019-02-14 16:37:28,911 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 [2019-02-14 16:37:28,912 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 [2019-02-14 16:37:28,913 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 [2019-02-14 16:37:28,914 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 [2019-02-14 16:37:28,915 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 [2019-02-14 16:37:28,916 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 [2019-02-14 16:37:28,917 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 [2019-02-14 16:37:28,918 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 [2019-02-14 16:37:28,919 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 [2019-02-14 16:37:28,920 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 [2019-02-14 16:37:28,921 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 [2019-02-14 16:37:28,922 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 [2019-02-14 16:37:28,923 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 [2019-02-14 16:37:28,924 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 [2019-02-14 16:37:28,925 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 [2019-02-14 16:37:28,925 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 [2019-02-14 16:37:28,927 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 [2019-02-14 16:37:28,928 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 [2019-02-14 16:37:28,929 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 [2019-02-14 16:37:28,929 INFO L273 TraceCheckUtils]: 24: Hoare triple {2014#(and (< 11 main_n) (<= main_i 48))} assume !(i <= n * 4); {2000#false} is VALID [2019-02-14 16:37:28,933 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:28,933 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:28,933 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:37:28,933 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:37:28,934 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:37:28,934 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:28,934 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 [2019-02-14 16:37:28,942 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:37:28,942 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:37:28,954 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2019-02-14 16:37:28,954 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:37:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:28,962 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:37:28,976 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 [2019-02-14 16:37:28,978 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:28,985 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:28,985 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:37:28,987 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:28,987 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_15]. (and (= main_a (store v_main_a_15 (* 4 main_n) 23)) (= main_i 0)) [2019-02-14 16:37:28,987 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:37:29,371 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 [2019-02-14 16:37:29,374 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:29,378 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:29,378 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:37:29,381 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:29,381 WARN L398 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))) [2019-02-14 16:37:29,381 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 44 .cse0)) (<= 44 .cse0) (<= main_i 48))) [2019-02-14 16:37:29,400 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 [2019-02-14 16:37:29,401 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 [2019-02-14 16:37:29,401 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 [2019-02-14 16:37:29,402 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 [2019-02-14 16:37:29,402 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 [2019-02-14 16:37:29,403 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 [2019-02-14 16:37:29,403 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 [2019-02-14 16:37:29,404 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 [2019-02-14 16:37:29,404 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 [2019-02-14 16:37:29,405 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 [2019-02-14 16:37:29,406 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 [2019-02-14 16:37:29,407 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 [2019-02-14 16:37:29,407 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 [2019-02-14 16:37:29,408 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 [2019-02-14 16:37:29,409 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 [2019-02-14 16:37:29,410 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 [2019-02-14 16:37:29,411 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 [2019-02-14 16:37:29,412 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 [2019-02-14 16:37:29,412 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 [2019-02-14 16:37:29,413 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 [2019-02-14 16:37:29,414 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 [2019-02-14 16:37:29,415 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 [2019-02-14 16:37:29,416 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 [2019-02-14 16:37:29,417 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 [2019-02-14 16:37:29,418 INFO L273 TraceCheckUtils]: 24: Hoare triple {2014#(and (< 11 main_n) (<= main_i 48))} assume !(i <= n * 4); {2000#false} is VALID [2019-02-14 16:37:29,421 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:29,421 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:37:30,068 INFO L273 TraceCheckUtils]: 24: Hoare triple {2103#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {2000#false} is VALID [2019-02-14 16:37:30,070 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 [2019-02-14 16:37:30,071 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 [2019-02-14 16:37:30,072 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 [2019-02-14 16:37:30,072 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 [2019-02-14 16:37:30,073 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 [2019-02-14 16:37:30,074 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 [2019-02-14 16:37:30,075 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 [2019-02-14 16:37:30,076 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 [2019-02-14 16:37:30,077 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 [2019-02-14 16:37:30,077 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 [2019-02-14 16:37:30,078 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 [2019-02-14 16:37:30,079 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 [2019-02-14 16:37:30,080 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 [2019-02-14 16:37:30,081 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 [2019-02-14 16:37:30,082 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 [2019-02-14 16:37:30,083 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 [2019-02-14 16:37:30,084 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 [2019-02-14 16:37:30,084 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 [2019-02-14 16:37:30,085 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 [2019-02-14 16:37:30,086 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 [2019-02-14 16:37:30,087 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 [2019-02-14 16:37:30,088 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 [2019-02-14 16:37:30,089 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 [2019-02-14 16:37:30,090 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 [2019-02-14 16:37:30,093 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:30,112 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:37:30,112 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 41 [2019-02-14 16:37:30,112 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:37:30,113 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 25 [2019-02-14 16:37:30,113 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:37:30,113 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 29 states. [2019-02-14 16:37:30,169 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 49 edges. 49 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:30,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-02-14 16:37:30,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-02-14 16:37:30,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=274, Invalid=1532, Unknown=0, NotChecked=0, Total=1806 [2019-02-14 16:37:30,171 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 29 states. [2019-02-14 16:37:31,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:31,162 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2019-02-14 16:37:31,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-02-14 16:37:31,162 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 25 [2019-02-14 16:37:31,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:37:31,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-02-14 16:37:31,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 30 transitions. [2019-02-14 16:37:31,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-02-14 16:37:31,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 30 transitions. [2019-02-14 16:37:31,165 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 30 transitions. [2019-02-14 16:37:31,196 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:31,197 INFO L225 Difference]: With dead ends: 30 [2019-02-14 16:37:31,197 INFO L226 Difference]: Without dead ends: 29 [2019-02-14 16:37:31,198 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 [2019-02-14 16:37:31,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-02-14 16:37:31,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2019-02-14 16:37:31,273 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:37:31,274 INFO L82 GeneralOperation]: Start isEquivalent. First operand 29 states. Second operand 28 states. [2019-02-14 16:37:31,274 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand 28 states. [2019-02-14 16:37:31,274 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 28 states. [2019-02-14 16:37:31,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:31,275 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-02-14 16:37:31,276 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2019-02-14 16:37:31,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:31,276 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:31,277 INFO L74 IsIncluded]: Start isIncluded. First operand 28 states. Second operand 29 states. [2019-02-14 16:37:31,277 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 29 states. [2019-02-14 16:37:31,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:31,278 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-02-14 16:37:31,278 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2019-02-14 16:37:31,278 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:31,278 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:31,278 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:37:31,278 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:37:31,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-02-14 16:37:31,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2019-02-14 16:37:31,279 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 25 [2019-02-14 16:37:31,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:37:31,279 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2019-02-14 16:37:31,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-02-14 16:37:31,279 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2019-02-14 16:37:31,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-02-14 16:37:31,280 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:37:31,280 INFO L402 BasicCegarLoop]: trace histogram [13, 12, 1, 1] [2019-02-14 16:37:31,280 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:37:31,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:37:31,280 INFO L82 PathProgramCache]: Analyzing trace with hash 367613688, now seen corresponding path program 12 times [2019-02-14 16:37:31,281 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:37:31,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:31,281 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:37:31,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:31,282 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:37:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:32,107 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 [2019-02-14 16:37:32,109 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 [2019-02-14 16:37:32,109 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 [2019-02-14 16:37:32,111 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 [2019-02-14 16:37:32,111 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 [2019-02-14 16:37:32,113 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 [2019-02-14 16:37:32,114 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 [2019-02-14 16:37:32,115 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 [2019-02-14 16:37:32,116 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 [2019-02-14 16:37:32,117 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 [2019-02-14 16:37:32,118 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 [2019-02-14 16:37:32,119 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 [2019-02-14 16:37:32,120 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 [2019-02-14 16:37:32,121 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 [2019-02-14 16:37:32,137 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 [2019-02-14 16:37:32,138 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 [2019-02-14 16:37:32,139 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 [2019-02-14 16:37:32,140 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 [2019-02-14 16:37:32,140 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 [2019-02-14 16:37:32,141 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 [2019-02-14 16:37:32,142 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 [2019-02-14 16:37:32,143 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 [2019-02-14 16:37:32,144 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 [2019-02-14 16:37:32,145 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 [2019-02-14 16:37:32,146 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 [2019-02-14 16:37:32,156 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 [2019-02-14 16:37:32,158 INFO L273 TraceCheckUtils]: 26: Hoare triple {2347#(and (<= main_i 52) (<= 13 main_n))} assume !(i <= n * 4); {2332#false} is VALID [2019-02-14 16:37:32,161 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:32,162 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:32,162 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:37:32,162 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:37:32,162 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:37:32,162 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:32,162 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 [2019-02-14 16:37:32,171 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:37:32,171 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:37:32,179 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:37:32,180 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:37:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:32,187 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:37:32,192 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 [2019-02-14 16:37:32,193 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:32,198 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:32,198 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:37:32,200 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:32,201 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_16]. (and (= main_a (store v_main_a_16 (* 4 main_n) 23)) (= main_i 0)) [2019-02-14 16:37:32,201 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:37:32,634 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 [2019-02-14 16:37:32,637 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:32,643 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:32,643 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:37:32,647 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:32,647 WARN L398 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)))) [2019-02-14 16:37:32,648 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 52) (<= 48 .cse0) (not (= 48 .cse0)))) [2019-02-14 16:37:32,667 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 [2019-02-14 16:37:32,668 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 [2019-02-14 16:37:32,668 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 [2019-02-14 16:37:32,669 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 [2019-02-14 16:37:32,670 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 [2019-02-14 16:37:32,671 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 [2019-02-14 16:37:32,672 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 [2019-02-14 16:37:32,672 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 [2019-02-14 16:37:32,673 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 [2019-02-14 16:37:32,674 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 [2019-02-14 16:37:32,675 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 [2019-02-14 16:37:32,675 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 [2019-02-14 16:37:32,676 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 [2019-02-14 16:37:32,677 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 [2019-02-14 16:37:32,678 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 [2019-02-14 16:37:32,678 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 [2019-02-14 16:37:32,679 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 [2019-02-14 16:37:32,680 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 [2019-02-14 16:37:32,681 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 [2019-02-14 16:37:32,681 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 [2019-02-14 16:37:32,682 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 [2019-02-14 16:37:32,683 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 [2019-02-14 16:37:32,684 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 [2019-02-14 16:37:32,684 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 [2019-02-14 16:37:32,685 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 [2019-02-14 16:37:32,686 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 [2019-02-14 16:37:32,687 INFO L273 TraceCheckUtils]: 26: Hoare triple {2347#(and (<= main_i 52) (<= 13 main_n))} assume !(i <= n * 4); {2332#false} is VALID [2019-02-14 16:37:32,690 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:32,690 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:37:33,591 INFO L273 TraceCheckUtils]: 26: Hoare triple {2443#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {2332#false} is VALID [2019-02-14 16:37:33,592 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 [2019-02-14 16:37:33,593 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 [2019-02-14 16:37:33,594 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 [2019-02-14 16:37:33,595 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 [2019-02-14 16:37:33,596 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 [2019-02-14 16:37:33,596 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 [2019-02-14 16:37:33,597 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 [2019-02-14 16:37:33,598 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 [2019-02-14 16:37:33,599 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 [2019-02-14 16:37:33,600 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 [2019-02-14 16:37:33,601 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 [2019-02-14 16:37:33,601 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 [2019-02-14 16:37:33,603 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 [2019-02-14 16:37:33,603 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 [2019-02-14 16:37:33,604 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 [2019-02-14 16:37:33,605 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 [2019-02-14 16:37:33,606 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 [2019-02-14 16:37:33,607 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 [2019-02-14 16:37:33,608 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 [2019-02-14 16:37:33,608 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 [2019-02-14 16:37:33,610 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 [2019-02-14 16:37:33,610 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 [2019-02-14 16:37:33,611 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 [2019-02-14 16:37:33,612 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 [2019-02-14 16:37:33,613 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 [2019-02-14 16:37:33,614 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 [2019-02-14 16:37:33,618 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:33,637 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:37:33,637 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 44 [2019-02-14 16:37:33,637 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:37:33,638 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 27 [2019-02-14 16:37:33,638 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:37:33,638 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 31 states. [2019-02-14 16:37:33,702 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:33,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-02-14 16:37:33,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-02-14 16:37:33,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=1762, Unknown=0, NotChecked=0, Total=2070 [2019-02-14 16:37:33,703 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 31 states. [2019-02-14 16:37:35,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:35,077 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2019-02-14 16:37:35,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-02-14 16:37:35,078 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 27 [2019-02-14 16:37:35,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:37:35,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-02-14 16:37:35,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 32 transitions. [2019-02-14 16:37:35,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-02-14 16:37:35,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 32 transitions. [2019-02-14 16:37:35,080 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 32 transitions. [2019-02-14 16:37:35,113 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:35,114 INFO L225 Difference]: With dead ends: 32 [2019-02-14 16:37:35,114 INFO L226 Difference]: Without dead ends: 31 [2019-02-14 16:37:35,116 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 [2019-02-14 16:37:35,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-02-14 16:37:35,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2019-02-14 16:37:35,147 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:37:35,147 INFO L82 GeneralOperation]: Start isEquivalent. First operand 31 states. Second operand 30 states. [2019-02-14 16:37:35,147 INFO L74 IsIncluded]: Start isIncluded. First operand 31 states. Second operand 30 states. [2019-02-14 16:37:35,147 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 30 states. [2019-02-14 16:37:35,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:35,149 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2019-02-14 16:37:35,149 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2019-02-14 16:37:35,149 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:35,149 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:35,150 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 31 states. [2019-02-14 16:37:35,150 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 31 states. [2019-02-14 16:37:35,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:35,151 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2019-02-14 16:37:35,151 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2019-02-14 16:37:35,151 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:35,151 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:35,151 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:37:35,151 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:37:35,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-02-14 16:37:35,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2019-02-14 16:37:35,152 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 27 [2019-02-14 16:37:35,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:37:35,152 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2019-02-14 16:37:35,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-02-14 16:37:35,153 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2019-02-14 16:37:35,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-02-14 16:37:35,153 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:37:35,153 INFO L402 BasicCegarLoop]: trace histogram [14, 13, 1, 1] [2019-02-14 16:37:35,154 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:37:35,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:37:35,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1089436986, now seen corresponding path program 13 times [2019-02-14 16:37:35,154 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:37:35,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:35,155 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:37:35,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:35,155 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:37:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:35,614 WARN L181 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-14 16:37:36,538 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 [2019-02-14 16:37:36,540 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 [2019-02-14 16:37:36,540 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 [2019-02-14 16:37:36,542 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 [2019-02-14 16:37:36,542 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 [2019-02-14 16:37:36,544 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 [2019-02-14 16:37:36,544 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 [2019-02-14 16:37:36,546 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 [2019-02-14 16:37:36,546 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 [2019-02-14 16:37:36,548 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 [2019-02-14 16:37:36,548 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 [2019-02-14 16:37:36,550 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 [2019-02-14 16:37:36,550 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 [2019-02-14 16:37:36,552 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 [2019-02-14 16:37:36,552 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 [2019-02-14 16:37:36,553 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 [2019-02-14 16:37:36,554 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 [2019-02-14 16:37:36,555 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 [2019-02-14 16:37:36,556 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 [2019-02-14 16:37:36,557 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 [2019-02-14 16:37:36,558 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 [2019-02-14 16:37:36,559 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 [2019-02-14 16:37:36,560 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 [2019-02-14 16:37:36,561 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 [2019-02-14 16:37:36,562 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 [2019-02-14 16:37:36,563 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 [2019-02-14 16:37:36,565 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 [2019-02-14 16:37:36,566 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 [2019-02-14 16:37:36,566 INFO L273 TraceCheckUtils]: 28: Hoare triple {2705#(and (<= main_i 56) (< 13 main_n))} assume !(i <= n * 4); {2689#false} is VALID [2019-02-14 16:37:36,571 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:36,572 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:36,572 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:37:36,572 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:37:36,572 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:37:36,572 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:36,572 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 [2019-02-14 16:37:36,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:37:36,583 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:37:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:36,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:36,601 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:37:36,609 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 [2019-02-14 16:37:36,613 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:36,621 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:36,621 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:37:36,623 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:36,623 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_17]. (and (= main_i 0) (= main_a (store v_main_a_17 (* 4 main_n) 23))) [2019-02-14 16:37:36,623 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:37:37,122 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 [2019-02-14 16:37:37,123 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:37,130 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:37,130 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:37:37,133 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:37,133 WARN L398 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))) [2019-02-14 16:37:37,133 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 52 .cse0)) (<= main_i 56) (<= 52 .cse0))) [2019-02-14 16:37:37,155 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 [2019-02-14 16:37:37,156 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 [2019-02-14 16:37:37,157 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 [2019-02-14 16:37:37,157 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 [2019-02-14 16:37:37,158 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 [2019-02-14 16:37:37,159 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 [2019-02-14 16:37:37,159 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 [2019-02-14 16:37:37,160 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 [2019-02-14 16:37:37,161 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 [2019-02-14 16:37:37,162 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 [2019-02-14 16:37:37,163 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 [2019-02-14 16:37:37,163 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 [2019-02-14 16:37:37,164 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 [2019-02-14 16:37:37,165 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 [2019-02-14 16:37:37,166 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 [2019-02-14 16:37:37,166 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 [2019-02-14 16:37:37,167 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 [2019-02-14 16:37:37,168 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 [2019-02-14 16:37:37,169 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 [2019-02-14 16:37:37,169 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 [2019-02-14 16:37:37,170 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 [2019-02-14 16:37:37,171 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 [2019-02-14 16:37:37,172 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 [2019-02-14 16:37:37,172 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 [2019-02-14 16:37:37,173 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 [2019-02-14 16:37:37,174 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 [2019-02-14 16:37:37,175 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 [2019-02-14 16:37:37,176 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 [2019-02-14 16:37:37,177 INFO L273 TraceCheckUtils]: 28: Hoare triple {2705#(and (<= main_i 56) (< 13 main_n))} assume !(i <= n * 4); {2689#false} is VALID [2019-02-14 16:37:37,180 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:37,180 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:37:37,991 INFO L273 TraceCheckUtils]: 28: Hoare triple {2808#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {2689#false} is VALID [2019-02-14 16:37:37,992 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 [2019-02-14 16:37:37,993 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 [2019-02-14 16:37:37,994 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 [2019-02-14 16:37:37,995 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 [2019-02-14 16:37:37,996 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 [2019-02-14 16:37:37,996 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 [2019-02-14 16:37:37,998 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 [2019-02-14 16:37:37,998 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 [2019-02-14 16:37:37,999 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 [2019-02-14 16:37:38,000 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 [2019-02-14 16:37:38,001 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 [2019-02-14 16:37:38,002 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 [2019-02-14 16:37:38,003 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 [2019-02-14 16:37:38,003 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 [2019-02-14 16:37:38,004 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 [2019-02-14 16:37:38,005 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 [2019-02-14 16:37:38,006 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 [2019-02-14 16:37:38,007 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 [2019-02-14 16:37:38,008 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 [2019-02-14 16:37:38,008 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 [2019-02-14 16:37:38,009 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 [2019-02-14 16:37:38,010 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 [2019-02-14 16:37:38,011 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 [2019-02-14 16:37:38,012 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 [2019-02-14 16:37:38,013 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 [2019-02-14 16:37:38,013 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 [2019-02-14 16:37:38,015 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 [2019-02-14 16:37:38,016 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 [2019-02-14 16:37:38,020 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:38,037 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:37:38,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 47 [2019-02-14 16:37:38,037 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:37:38,038 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 29 [2019-02-14 16:37:38,038 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:37:38,038 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 33 states. [2019-02-14 16:37:38,105 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 57 edges. 57 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:38,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-02-14 16:37:38,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-02-14 16:37:38,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=344, Invalid=2008, Unknown=0, NotChecked=0, Total=2352 [2019-02-14 16:37:38,107 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 33 states. [2019-02-14 16:37:39,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:39,661 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2019-02-14 16:37:39,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-02-14 16:37:39,661 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 29 [2019-02-14 16:37:39,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:37:39,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-02-14 16:37:39,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 34 transitions. [2019-02-14 16:37:39,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-02-14 16:37:39,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 34 transitions. [2019-02-14 16:37:39,663 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 18 states and 34 transitions. [2019-02-14 16:37:39,697 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:39,698 INFO L225 Difference]: With dead ends: 34 [2019-02-14 16:37:39,699 INFO L226 Difference]: Without dead ends: 33 [2019-02-14 16:37:39,700 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=344, Invalid=2008, Unknown=0, NotChecked=0, Total=2352 [2019-02-14 16:37:39,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-02-14 16:37:39,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2019-02-14 16:37:39,730 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:37:39,730 INFO L82 GeneralOperation]: Start isEquivalent. First operand 33 states. Second operand 32 states. [2019-02-14 16:37:39,730 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand 32 states. [2019-02-14 16:37:39,730 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 32 states. [2019-02-14 16:37:39,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:39,731 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2019-02-14 16:37:39,731 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2019-02-14 16:37:39,731 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:39,732 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:39,732 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand 33 states. [2019-02-14 16:37:39,732 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 33 states. [2019-02-14 16:37:39,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:39,733 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2019-02-14 16:37:39,733 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2019-02-14 16:37:39,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:39,733 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:39,734 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:37:39,734 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:37:39,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-02-14 16:37:39,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2019-02-14 16:37:39,734 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 29 [2019-02-14 16:37:39,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:37:39,735 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2019-02-14 16:37:39,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-02-14 16:37:39,735 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2019-02-14 16:37:39,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-02-14 16:37:39,735 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:37:39,735 INFO L402 BasicCegarLoop]: trace histogram [15, 14, 1, 1] [2019-02-14 16:37:39,735 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:37:39,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:37:39,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1023075588, now seen corresponding path program 14 times [2019-02-14 16:37:39,736 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:37:39,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:39,737 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:37:39,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:39,737 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:37:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:40,121 WARN L181 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-14 16:37:40,760 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 [2019-02-14 16:37:40,778 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 [2019-02-14 16:37:40,781 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 [2019-02-14 16:37:40,782 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 [2019-02-14 16:37:40,782 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 [2019-02-14 16:37:40,783 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 [2019-02-14 16:37:40,783 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 [2019-02-14 16:37:40,784 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 [2019-02-14 16:37:40,785 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 [2019-02-14 16:37:40,786 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 [2019-02-14 16:37:40,787 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 [2019-02-14 16:37:40,788 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 [2019-02-14 16:37:40,788 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 [2019-02-14 16:37:40,790 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 [2019-02-14 16:37:40,790 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 [2019-02-14 16:37:40,791 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 [2019-02-14 16:37:40,792 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 [2019-02-14 16:37:40,793 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 [2019-02-14 16:37:40,794 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 [2019-02-14 16:37:40,795 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 [2019-02-14 16:37:40,796 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 [2019-02-14 16:37:40,797 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 [2019-02-14 16:37:40,798 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 [2019-02-14 16:37:40,799 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 [2019-02-14 16:37:40,800 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 [2019-02-14 16:37:40,801 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 [2019-02-14 16:37:40,802 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 [2019-02-14 16:37:40,804 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 [2019-02-14 16:37:40,805 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 [2019-02-14 16:37:40,806 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 [2019-02-14 16:37:40,807 INFO L273 TraceCheckUtils]: 30: Hoare triple {3088#(and (<= main_i 60) (<= 15 main_n))} assume !(i <= n * 4); {3071#false} is VALID [2019-02-14 16:37:40,814 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:40,814 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:40,814 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:37:40,814 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:37:40,814 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:37:40,814 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:40,814 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 [2019-02-14 16:37:40,823 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:37:40,823 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:37:40,848 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2019-02-14 16:37:40,848 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:37:40,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:40,861 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:37:40,880 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 [2019-02-14 16:37:40,882 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:40,890 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:40,890 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:37:40,893 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:40,893 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_18]. (and (= main_i 0) (= (store v_main_a_18 (* 4 main_n) 23) main_a)) [2019-02-14 16:37:40,893 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:37:41,430 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 [2019-02-14 16:37:41,432 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:41,438 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:41,438 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:37:41,441 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:41,441 WARN L398 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)))) [2019-02-14 16:37:41,441 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 56 .cse0) (<= main_i 60) (not (= 56 .cse0)))) [2019-02-14 16:37:41,463 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 [2019-02-14 16:37:41,464 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 [2019-02-14 16:37:41,464 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 [2019-02-14 16:37:41,464 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 [2019-02-14 16:37:41,465 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 [2019-02-14 16:37:41,465 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 [2019-02-14 16:37:41,466 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 [2019-02-14 16:37:41,466 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 [2019-02-14 16:37:41,467 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 [2019-02-14 16:37:41,468 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 [2019-02-14 16:37:41,468 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 [2019-02-14 16:37:41,469 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 [2019-02-14 16:37:41,470 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 [2019-02-14 16:37:41,471 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 [2019-02-14 16:37:41,471 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 [2019-02-14 16:37:41,472 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 [2019-02-14 16:37:41,473 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 [2019-02-14 16:37:41,473 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 [2019-02-14 16:37:41,474 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 [2019-02-14 16:37:41,475 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 [2019-02-14 16:37:41,475 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 [2019-02-14 16:37:41,476 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 [2019-02-14 16:37:41,477 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 [2019-02-14 16:37:41,478 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 [2019-02-14 16:37:41,478 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 [2019-02-14 16:37:41,479 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 [2019-02-14 16:37:41,480 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 [2019-02-14 16:37:41,480 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 [2019-02-14 16:37:41,481 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 [2019-02-14 16:37:41,482 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 [2019-02-14 16:37:41,483 INFO L273 TraceCheckUtils]: 30: Hoare triple {3088#(and (<= main_i 60) (<= 15 main_n))} assume !(i <= n * 4); {3071#false} is VALID [2019-02-14 16:37:41,486 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:41,487 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:37:42,418 INFO L273 TraceCheckUtils]: 30: Hoare triple {3198#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {3071#false} is VALID [2019-02-14 16:37:42,419 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 [2019-02-14 16:37:42,420 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 [2019-02-14 16:37:42,421 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 [2019-02-14 16:37:42,422 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 [2019-02-14 16:37:42,423 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 [2019-02-14 16:37:42,423 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 [2019-02-14 16:37:42,424 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 [2019-02-14 16:37:42,425 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 [2019-02-14 16:37:42,426 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 [2019-02-14 16:37:42,426 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 [2019-02-14 16:37:42,427 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 [2019-02-14 16:37:42,428 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 [2019-02-14 16:37:42,429 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 [2019-02-14 16:37:42,430 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 [2019-02-14 16:37:42,431 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 [2019-02-14 16:37:42,431 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 [2019-02-14 16:37:42,432 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 [2019-02-14 16:37:42,433 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 [2019-02-14 16:37:42,434 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 [2019-02-14 16:37:42,435 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 [2019-02-14 16:37:42,436 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 [2019-02-14 16:37:42,436 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 [2019-02-14 16:37:42,437 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 [2019-02-14 16:37:42,438 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 [2019-02-14 16:37:42,439 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 [2019-02-14 16:37:42,439 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 [2019-02-14 16:37:42,441 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 [2019-02-14 16:37:42,441 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 [2019-02-14 16:37:42,442 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 [2019-02-14 16:37:42,443 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 [2019-02-14 16:37:42,448 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:42,467 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:37:42,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 50 [2019-02-14 16:37:42,467 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:37:42,467 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 31 [2019-02-14 16:37:42,467 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:37:42,468 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 35 states. [2019-02-14 16:37:42,538 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:42,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-02-14 16:37:42,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-02-14 16:37:42,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=382, Invalid=2270, Unknown=0, NotChecked=0, Total=2652 [2019-02-14 16:37:42,540 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 35 states. [2019-02-14 16:37:44,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:44,240 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2019-02-14 16:37:44,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-02-14 16:37:44,240 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 31 [2019-02-14 16:37:44,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:37:44,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-02-14 16:37:44,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 36 transitions. [2019-02-14 16:37:44,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-02-14 16:37:44,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 36 transitions. [2019-02-14 16:37:44,243 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 19 states and 36 transitions. [2019-02-14 16:37:44,279 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:44,280 INFO L225 Difference]: With dead ends: 36 [2019-02-14 16:37:44,280 INFO L226 Difference]: Without dead ends: 35 [2019-02-14 16:37:44,281 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=382, Invalid=2270, Unknown=0, NotChecked=0, Total=2652 [2019-02-14 16:37:44,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-02-14 16:37:44,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2019-02-14 16:37:44,340 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:37:44,340 INFO L82 GeneralOperation]: Start isEquivalent. First operand 35 states. Second operand 34 states. [2019-02-14 16:37:44,340 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 34 states. [2019-02-14 16:37:44,340 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 34 states. [2019-02-14 16:37:44,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:44,341 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2019-02-14 16:37:44,341 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2019-02-14 16:37:44,341 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:44,341 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:44,341 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 35 states. [2019-02-14 16:37:44,341 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 35 states. [2019-02-14 16:37:44,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:44,342 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2019-02-14 16:37:44,342 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2019-02-14 16:37:44,342 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:44,342 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:44,343 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:37:44,343 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:37:44,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-02-14 16:37:44,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2019-02-14 16:37:44,343 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 31 [2019-02-14 16:37:44,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:37:44,343 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2019-02-14 16:37:44,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-02-14 16:37:44,344 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2019-02-14 16:37:44,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-02-14 16:37:44,344 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:37:44,344 INFO L402 BasicCegarLoop]: trace histogram [16, 15, 1, 1] [2019-02-14 16:37:44,344 INFO L423 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:37:44,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:37:44,345 INFO L82 PathProgramCache]: Analyzing trace with hash 371871806, now seen corresponding path program 15 times [2019-02-14 16:37:44,345 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:37:44,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:44,345 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:37:44,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:44,345 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:37:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:44,784 WARN L181 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-14 16:37:45,572 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 [2019-02-14 16:37:45,573 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 [2019-02-14 16:37:45,574 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 [2019-02-14 16:37:45,575 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 [2019-02-14 16:37:45,576 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 [2019-02-14 16:37:45,577 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 [2019-02-14 16:37:45,578 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 [2019-02-14 16:37:45,579 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 [2019-02-14 16:37:45,580 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 [2019-02-14 16:37:45,581 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 [2019-02-14 16:37:45,582 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 [2019-02-14 16:37:45,583 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 [2019-02-14 16:37:45,583 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 [2019-02-14 16:37:45,584 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 [2019-02-14 16:37:45,585 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 [2019-02-14 16:37:45,586 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 [2019-02-14 16:37:45,587 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 [2019-02-14 16:37:45,588 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 [2019-02-14 16:37:45,589 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 [2019-02-14 16:37:45,608 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 [2019-02-14 16:37:45,621 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 [2019-02-14 16:37:45,636 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 [2019-02-14 16:37:45,650 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 [2019-02-14 16:37:45,658 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 [2019-02-14 16:37:45,659 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 [2019-02-14 16:37:45,660 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 [2019-02-14 16:37:45,661 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 [2019-02-14 16:37:45,661 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 [2019-02-14 16:37:45,662 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 [2019-02-14 16:37:45,663 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 [2019-02-14 16:37:45,663 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 [2019-02-14 16:37:45,682 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 [2019-02-14 16:37:45,691 INFO L273 TraceCheckUtils]: 32: Hoare triple {3496#(and (<= main_i 64) (< 15 main_n))} assume !(i <= n * 4); {3478#false} is VALID [2019-02-14 16:37:45,697 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:45,698 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:45,698 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:37:45,698 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:37:45,698 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:37:45,698 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:45,698 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 [2019-02-14 16:37:45,707 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:37:45,708 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:37:45,717 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:37:45,717 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:37:45,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:45,735 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:37:45,752 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 [2019-02-14 16:37:45,755 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:45,762 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:45,762 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:37:45,764 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:45,765 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_19]. (and (= (store v_main_a_19 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:37:45,765 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:37:46,558 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 [2019-02-14 16:37:46,560 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:46,567 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:46,567 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:37:46,570 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:46,570 WARN L398 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)))) [2019-02-14 16:37:46,570 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 60 .cse0)) (<= main_i 64) (<= 60 .cse0))) [2019-02-14 16:37:46,593 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 [2019-02-14 16:37:46,593 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 [2019-02-14 16:37:46,594 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 [2019-02-14 16:37:46,594 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 [2019-02-14 16:37:46,595 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 [2019-02-14 16:37:46,595 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 [2019-02-14 16:37:46,595 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 [2019-02-14 16:37:46,596 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 [2019-02-14 16:37:46,597 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 [2019-02-14 16:37:46,597 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 [2019-02-14 16:37:46,598 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 [2019-02-14 16:37:46,599 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 [2019-02-14 16:37:46,599 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 [2019-02-14 16:37:46,600 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 [2019-02-14 16:37:46,601 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 [2019-02-14 16:37:46,601 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 [2019-02-14 16:37:46,602 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 [2019-02-14 16:37:46,603 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 [2019-02-14 16:37:46,604 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 [2019-02-14 16:37:46,604 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 [2019-02-14 16:37:46,605 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 [2019-02-14 16:37:46,606 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 [2019-02-14 16:37:46,606 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 [2019-02-14 16:37:46,607 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 [2019-02-14 16:37:46,608 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 [2019-02-14 16:37:46,608 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 [2019-02-14 16:37:46,609 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 [2019-02-14 16:37:46,610 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 [2019-02-14 16:37:46,610 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 [2019-02-14 16:37:46,611 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 [2019-02-14 16:37:46,612 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 [2019-02-14 16:37:46,613 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 [2019-02-14 16:37:46,614 INFO L273 TraceCheckUtils]: 32: Hoare triple {3496#(and (<= main_i 64) (< 15 main_n))} assume !(i <= n * 4); {3478#false} is VALID [2019-02-14 16:37:46,618 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:46,618 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:37:47,711 INFO L273 TraceCheckUtils]: 32: Hoare triple {3613#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {3478#false} is VALID [2019-02-14 16:37:47,712 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 [2019-02-14 16:37:47,713 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 [2019-02-14 16:37:47,714 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 [2019-02-14 16:37:47,715 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 [2019-02-14 16:37:47,716 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 [2019-02-14 16:37:47,716 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 [2019-02-14 16:37:47,718 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 [2019-02-14 16:37:47,718 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 [2019-02-14 16:37:47,719 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 [2019-02-14 16:37:47,720 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 [2019-02-14 16:37:47,721 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 [2019-02-14 16:37:47,721 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 [2019-02-14 16:37:47,722 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 [2019-02-14 16:37:47,723 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 [2019-02-14 16:37:47,724 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 [2019-02-14 16:37:47,724 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 [2019-02-14 16:37:47,726 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 [2019-02-14 16:37:47,726 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 [2019-02-14 16:37:47,727 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 [2019-02-14 16:37:47,728 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 [2019-02-14 16:37:47,729 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 [2019-02-14 16:37:47,729 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 [2019-02-14 16:37:47,730 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 [2019-02-14 16:37:47,731 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 [2019-02-14 16:37:47,732 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 [2019-02-14 16:37:47,732 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 [2019-02-14 16:37:47,734 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 [2019-02-14 16:37:47,734 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 [2019-02-14 16:37:47,735 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 [2019-02-14 16:37:47,736 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 [2019-02-14 16:37:47,737 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 [2019-02-14 16:37:47,739 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 [2019-02-14 16:37:47,745 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:47,765 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:37:47,765 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 53 [2019-02-14 16:37:47,766 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:37:47,766 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 33 [2019-02-14 16:37:47,766 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:37:47,766 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 37 states. [2019-02-14 16:37:47,839 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:47,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2019-02-14 16:37:47,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2019-02-14 16:37:47,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=422, Invalid=2548, Unknown=0, NotChecked=0, Total=2970 [2019-02-14 16:37:47,842 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 37 states. [2019-02-14 16:37:49,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:49,745 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2019-02-14 16:37:49,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-02-14 16:37:49,745 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 33 [2019-02-14 16:37:49,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:37:49,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-02-14 16:37:49,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 38 transitions. [2019-02-14 16:37:49,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-02-14 16:37:49,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 38 transitions. [2019-02-14 16:37:49,748 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states and 38 transitions. [2019-02-14 16:37:49,786 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:49,787 INFO L225 Difference]: With dead ends: 38 [2019-02-14 16:37:49,787 INFO L226 Difference]: Without dead ends: 37 [2019-02-14 16:37:49,789 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=422, Invalid=2548, Unknown=0, NotChecked=0, Total=2970 [2019-02-14 16:37:49,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-02-14 16:37:49,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2019-02-14 16:37:49,825 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:37:49,825 INFO L82 GeneralOperation]: Start isEquivalent. First operand 37 states. Second operand 36 states. [2019-02-14 16:37:49,825 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand 36 states. [2019-02-14 16:37:49,825 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 36 states. [2019-02-14 16:37:49,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:49,826 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2019-02-14 16:37:49,826 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2019-02-14 16:37:49,827 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:49,827 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:49,827 INFO L74 IsIncluded]: Start isIncluded. First operand 36 states. Second operand 37 states. [2019-02-14 16:37:49,827 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 37 states. [2019-02-14 16:37:49,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:49,828 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2019-02-14 16:37:49,828 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2019-02-14 16:37:49,829 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:49,829 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:49,829 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:37:49,829 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:37:49,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-02-14 16:37:49,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2019-02-14 16:37:49,830 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 33 [2019-02-14 16:37:49,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:37:49,830 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2019-02-14 16:37:49,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has 37 states. [2019-02-14 16:37:49,830 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2019-02-14 16:37:49,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-02-14 16:37:49,830 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:37:49,831 INFO L402 BasicCegarLoop]: trace histogram [17, 16, 1, 1] [2019-02-14 16:37:49,831 INFO L423 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:37:49,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:37:49,831 INFO L82 PathProgramCache]: Analyzing trace with hash 886521088, now seen corresponding path program 16 times [2019-02-14 16:37:49,831 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:37:49,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:49,832 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:37:49,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:49,832 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:37:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:50,581 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 [2019-02-14 16:37:50,582 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 [2019-02-14 16:37:50,583 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 [2019-02-14 16:37:50,584 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 [2019-02-14 16:37:50,585 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 [2019-02-14 16:37:50,586 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 [2019-02-14 16:37:50,587 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 [2019-02-14 16:37:50,588 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 [2019-02-14 16:37:50,589 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 [2019-02-14 16:37:50,590 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 [2019-02-14 16:37:50,591 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 [2019-02-14 16:37:50,592 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 [2019-02-14 16:37:50,592 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 [2019-02-14 16:37:50,593 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 [2019-02-14 16:37:50,594 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 [2019-02-14 16:37:50,595 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 [2019-02-14 16:37:50,596 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 [2019-02-14 16:37:50,597 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 [2019-02-14 16:37:50,598 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 [2019-02-14 16:37:50,599 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 [2019-02-14 16:37:50,600 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 [2019-02-14 16:37:50,601 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 [2019-02-14 16:37:50,601 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 [2019-02-14 16:37:50,602 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 [2019-02-14 16:37:50,603 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 [2019-02-14 16:37:50,604 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 [2019-02-14 16:37:50,605 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 [2019-02-14 16:37:50,606 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 [2019-02-14 16:37:50,607 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 [2019-02-14 16:37:50,608 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 [2019-02-14 16:37:50,609 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 [2019-02-14 16:37:50,610 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 [2019-02-14 16:37:50,611 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 [2019-02-14 16:37:50,612 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 [2019-02-14 16:37:50,613 INFO L273 TraceCheckUtils]: 34: Hoare triple {3929#(and (<= 17 main_n) (<= main_i 68))} assume !(i <= n * 4); {3910#false} is VALID [2019-02-14 16:37:50,619 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:50,620 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:50,620 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:37:50,620 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:37:50,620 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:37:50,620 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:50,620 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 [2019-02-14 16:37:50,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:37:50,629 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:37:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:50,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:50,649 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:37:50,685 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 [2019-02-14 16:37:50,687 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:50,694 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:50,694 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:37:50,696 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:50,696 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_20]. (and (= (store v_main_a_20 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:37:50,696 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:37:51,373 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 [2019-02-14 16:37:51,376 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:51,382 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:51,383 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:37:51,385 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:51,385 WARN L398 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))) [2019-02-14 16:37:51,385 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 64 .cse0)) (<= 64 .cse0) (<= main_i 68))) [2019-02-14 16:37:51,409 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 [2019-02-14 16:37:51,410 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 [2019-02-14 16:37:51,410 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 [2019-02-14 16:37:51,411 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 [2019-02-14 16:37:51,411 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 [2019-02-14 16:37:51,412 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 [2019-02-14 16:37:51,413 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 [2019-02-14 16:37:51,413 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 [2019-02-14 16:37:51,414 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 [2019-02-14 16:37:51,415 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 [2019-02-14 16:37:51,415 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 [2019-02-14 16:37:51,416 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 [2019-02-14 16:37:51,417 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 [2019-02-14 16:37:51,417 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 [2019-02-14 16:37:51,418 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 [2019-02-14 16:37:51,419 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 [2019-02-14 16:37:51,419 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 [2019-02-14 16:37:51,420 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 [2019-02-14 16:37:51,421 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 [2019-02-14 16:37:51,422 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 [2019-02-14 16:37:51,422 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 [2019-02-14 16:37:51,423 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 [2019-02-14 16:37:51,424 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 [2019-02-14 16:37:51,424 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 [2019-02-14 16:37:51,425 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 [2019-02-14 16:37:51,426 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 [2019-02-14 16:37:51,427 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 [2019-02-14 16:37:51,427 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 [2019-02-14 16:37:51,428 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 [2019-02-14 16:37:51,429 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 [2019-02-14 16:37:51,429 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 [2019-02-14 16:37:51,430 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 [2019-02-14 16:37:51,431 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 [2019-02-14 16:37:51,432 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 [2019-02-14 16:37:51,433 INFO L273 TraceCheckUtils]: 34: Hoare triple {3929#(and (<= 17 main_n) (<= main_i 68))} assume !(i <= n * 4); {3910#false} is VALID [2019-02-14 16:37:51,438 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:51,438 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:37:52,633 INFO L273 TraceCheckUtils]: 34: Hoare triple {4053#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {3910#false} is VALID [2019-02-14 16:37:52,634 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 [2019-02-14 16:37:52,634 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 [2019-02-14 16:37:52,635 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 [2019-02-14 16:37:52,636 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 [2019-02-14 16:37:52,637 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 [2019-02-14 16:37:52,638 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 [2019-02-14 16:37:52,639 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 [2019-02-14 16:37:52,639 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 [2019-02-14 16:37:52,640 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 [2019-02-14 16:37:52,641 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 [2019-02-14 16:37:52,642 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 [2019-02-14 16:37:52,642 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 [2019-02-14 16:37:52,644 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 [2019-02-14 16:37:52,644 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 [2019-02-14 16:37:52,645 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 [2019-02-14 16:37:52,646 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 [2019-02-14 16:37:52,647 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 [2019-02-14 16:37:52,647 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 [2019-02-14 16:37:52,648 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 [2019-02-14 16:37:52,649 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 [2019-02-14 16:37:52,650 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 [2019-02-14 16:37:52,651 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 [2019-02-14 16:37:52,652 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 [2019-02-14 16:37:52,652 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 [2019-02-14 16:37:52,653 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 [2019-02-14 16:37:52,654 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 [2019-02-14 16:37:52,655 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 [2019-02-14 16:37:52,655 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 [2019-02-14 16:37:52,656 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 [2019-02-14 16:37:52,657 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 [2019-02-14 16:37:52,658 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 [2019-02-14 16:37:52,659 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 [2019-02-14 16:37:52,660 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 [2019-02-14 16:37:52,661 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 [2019-02-14 16:37:52,667 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:52,685 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:37:52,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 56 [2019-02-14 16:37:52,685 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:37:52,685 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 35 [2019-02-14 16:37:52,686 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:37:52,686 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 39 states. [2019-02-14 16:37:52,765 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 69 edges. 69 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:52,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-02-14 16:37:52,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-02-14 16:37:52,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=464, Invalid=2842, Unknown=0, NotChecked=0, Total=3306 [2019-02-14 16:37:52,767 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 39 states. [2019-02-14 16:37:54,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:54,702 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2019-02-14 16:37:54,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-02-14 16:37:54,703 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 35 [2019-02-14 16:37:54,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:37:54,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-02-14 16:37:54,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 40 transitions. [2019-02-14 16:37:54,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-02-14 16:37:54,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 40 transitions. [2019-02-14 16:37:54,706 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 21 states and 40 transitions. [2019-02-14 16:37:54,747 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 40 edges. 40 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:54,748 INFO L225 Difference]: With dead ends: 40 [2019-02-14 16:37:54,748 INFO L226 Difference]: Without dead ends: 39 [2019-02-14 16:37:54,750 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=464, Invalid=2842, Unknown=0, NotChecked=0, Total=3306 [2019-02-14 16:37:54,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-02-14 16:37:54,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2019-02-14 16:37:54,808 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:37:54,808 INFO L82 GeneralOperation]: Start isEquivalent. First operand 39 states. Second operand 38 states. [2019-02-14 16:37:54,808 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 38 states. [2019-02-14 16:37:54,808 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 38 states. [2019-02-14 16:37:54,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:54,809 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2019-02-14 16:37:54,809 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2019-02-14 16:37:54,809 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:54,809 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:54,810 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 39 states. [2019-02-14 16:37:54,810 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 39 states. [2019-02-14 16:37:54,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:37:54,811 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2019-02-14 16:37:54,811 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2019-02-14 16:37:54,811 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:37:54,811 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:37:54,811 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:37:54,811 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:37:54,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-02-14 16:37:54,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2019-02-14 16:37:54,812 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 35 [2019-02-14 16:37:54,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:37:54,812 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2019-02-14 16:37:54,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-02-14 16:37:54,812 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2019-02-14 16:37:54,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-02-14 16:37:54,813 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:37:54,813 INFO L402 BasicCegarLoop]: trace histogram [18, 17, 1, 1] [2019-02-14 16:37:54,813 INFO L423 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:37:54,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:37:54,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1543242050, now seen corresponding path program 17 times [2019-02-14 16:37:54,813 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:37:54,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:54,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:37:54,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:37:54,814 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:37:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:55,706 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 [2019-02-14 16:37:55,708 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 [2019-02-14 16:37:55,708 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 [2019-02-14 16:37:55,709 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 [2019-02-14 16:37:55,710 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 [2019-02-14 16:37:55,711 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 [2019-02-14 16:37:55,712 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 [2019-02-14 16:37:55,713 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 [2019-02-14 16:37:55,714 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 [2019-02-14 16:37:55,715 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 [2019-02-14 16:37:55,716 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 [2019-02-14 16:37:55,717 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 [2019-02-14 16:37:55,718 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 [2019-02-14 16:37:55,719 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 [2019-02-14 16:37:55,719 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 [2019-02-14 16:37:55,721 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 [2019-02-14 16:37:55,721 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 [2019-02-14 16:37:55,722 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 [2019-02-14 16:37:55,723 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 [2019-02-14 16:37:55,724 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 [2019-02-14 16:37:55,725 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 [2019-02-14 16:37:55,726 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 [2019-02-14 16:37:55,727 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 [2019-02-14 16:37:55,728 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 [2019-02-14 16:37:55,729 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 [2019-02-14 16:37:55,730 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 [2019-02-14 16:37:55,730 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 [2019-02-14 16:37:55,731 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 [2019-02-14 16:37:55,732 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 [2019-02-14 16:37:55,733 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 [2019-02-14 16:37:55,734 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 [2019-02-14 16:37:55,735 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 [2019-02-14 16:37:55,736 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 [2019-02-14 16:37:55,737 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 [2019-02-14 16:37:55,738 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 [2019-02-14 16:37:55,739 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 [2019-02-14 16:37:55,740 INFO L273 TraceCheckUtils]: 36: Hoare triple {4387#(and (< 17 main_n) (<= main_i 72))} assume !(i <= n * 4); {4367#false} is VALID [2019-02-14 16:37:55,755 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:55,755 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:55,755 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:37:55,755 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:37:55,755 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:37:55,755 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:37:55,756 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 [2019-02-14 16:37:55,763 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:37:55,764 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:37:55,803 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2019-02-14 16:37:55,803 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:37:55,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:37:55,812 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:37:55,832 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 [2019-02-14 16:37:55,834 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:55,838 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:55,838 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:37:55,841 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:55,841 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_21]. (and (= (store v_main_a_21 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:37:55,841 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:37:56,516 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 [2019-02-14 16:37:56,517 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:37:56,522 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:37:56,522 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:37:56,525 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:37:56,525 WARN L398 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)))) [2019-02-14 16:37:56,525 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 68 .cse0)) (<= main_i 72) (<= 68 .cse0))) [2019-02-14 16:37:56,551 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 [2019-02-14 16:37:56,552 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 [2019-02-14 16:37:56,552 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 [2019-02-14 16:37:56,553 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 [2019-02-14 16:37:56,553 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 [2019-02-14 16:37:56,554 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 [2019-02-14 16:37:56,555 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 [2019-02-14 16:37:56,555 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 [2019-02-14 16:37:56,556 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 [2019-02-14 16:37:56,557 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 [2019-02-14 16:37:56,557 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 [2019-02-14 16:37:56,558 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 [2019-02-14 16:37:56,559 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 [2019-02-14 16:37:56,560 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 [2019-02-14 16:37:56,560 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 [2019-02-14 16:37:56,561 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 [2019-02-14 16:37:56,562 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 [2019-02-14 16:37:56,563 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 [2019-02-14 16:37:56,564 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 [2019-02-14 16:37:56,564 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 [2019-02-14 16:37:56,565 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 [2019-02-14 16:37:56,566 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 [2019-02-14 16:37:56,567 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 [2019-02-14 16:37:56,567 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 [2019-02-14 16:37:56,568 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 [2019-02-14 16:37:56,569 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 [2019-02-14 16:37:56,569 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 [2019-02-14 16:37:56,570 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 [2019-02-14 16:37:56,571 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 [2019-02-14 16:37:56,571 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 [2019-02-14 16:37:56,572 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 [2019-02-14 16:37:56,573 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 [2019-02-14 16:37:56,574 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 [2019-02-14 16:37:56,574 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 [2019-02-14 16:37:56,575 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 [2019-02-14 16:37:56,576 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 [2019-02-14 16:37:56,577 INFO L273 TraceCheckUtils]: 36: Hoare triple {4387#(and (< 17 main_n) (<= main_i 72))} assume !(i <= n * 4); {4367#false} is VALID [2019-02-14 16:37:56,581 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:56,581 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:37:57,800 INFO L273 TraceCheckUtils]: 36: Hoare triple {4518#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {4367#false} is VALID [2019-02-14 16:37:57,801 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 [2019-02-14 16:37:57,802 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 [2019-02-14 16:37:57,802 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 [2019-02-14 16:37:57,803 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 [2019-02-14 16:37:57,803 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 [2019-02-14 16:37:57,804 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 [2019-02-14 16:37:57,805 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 [2019-02-14 16:37:57,805 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 [2019-02-14 16:37:57,806 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 [2019-02-14 16:37:57,807 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 [2019-02-14 16:37:57,808 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 [2019-02-14 16:37:57,808 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 [2019-02-14 16:37:57,809 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 [2019-02-14 16:37:57,810 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 [2019-02-14 16:37:57,811 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 [2019-02-14 16:37:57,812 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 [2019-02-14 16:37:57,813 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 [2019-02-14 16:37:57,813 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 [2019-02-14 16:37:57,814 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 [2019-02-14 16:37:57,815 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 [2019-02-14 16:37:57,816 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 [2019-02-14 16:37:57,816 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 [2019-02-14 16:37:57,818 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 [2019-02-14 16:37:57,818 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 [2019-02-14 16:37:57,819 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 [2019-02-14 16:37:57,820 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 [2019-02-14 16:37:57,821 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 [2019-02-14 16:37:57,821 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 [2019-02-14 16:37:57,822 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 [2019-02-14 16:37:57,823 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 [2019-02-14 16:37:57,824 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 [2019-02-14 16:37:57,824 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 [2019-02-14 16:37:57,826 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 [2019-02-14 16:37:57,826 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 [2019-02-14 16:37:57,827 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 [2019-02-14 16:37:57,828 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 [2019-02-14 16:37:57,835 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:37:57,853 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:37:57,853 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 59 [2019-02-14 16:37:57,853 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:37:57,854 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 37 [2019-02-14 16:37:57,854 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:37:57,854 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 41 states. [2019-02-14 16:37:57,972 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 73 edges. 73 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:37:57,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2019-02-14 16:37:57,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2019-02-14 16:37:57,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=508, Invalid=3152, Unknown=0, NotChecked=0, Total=3660 [2019-02-14 16:37:57,974 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 41 states. [2019-02-14 16:38:00,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:38:00,318 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2019-02-14 16:38:00,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-02-14 16:38:00,319 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 37 [2019-02-14 16:38:00,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:38:00,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-02-14 16:38:00,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 42 transitions. [2019-02-14 16:38:00,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-02-14 16:38:00,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 42 transitions. [2019-02-14 16:38:00,320 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 22 states and 42 transitions. [2019-02-14 16:38:00,363 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:38:00,364 INFO L225 Difference]: With dead ends: 42 [2019-02-14 16:38:00,364 INFO L226 Difference]: Without dead ends: 41 [2019-02-14 16:38:00,366 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 836 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=508, Invalid=3152, Unknown=0, NotChecked=0, Total=3660 [2019-02-14 16:38:00,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-02-14 16:38:00,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2019-02-14 16:38:00,415 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:38:00,415 INFO L82 GeneralOperation]: Start isEquivalent. First operand 41 states. Second operand 40 states. [2019-02-14 16:38:00,415 INFO L74 IsIncluded]: Start isIncluded. First operand 41 states. Second operand 40 states. [2019-02-14 16:38:00,416 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 40 states. [2019-02-14 16:38:00,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:38:00,417 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2019-02-14 16:38:00,417 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2019-02-14 16:38:00,417 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:38:00,418 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:38:00,418 INFO L74 IsIncluded]: Start isIncluded. First operand 40 states. Second operand 41 states. [2019-02-14 16:38:00,418 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 41 states. [2019-02-14 16:38:00,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:38:00,419 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2019-02-14 16:38:00,419 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2019-02-14 16:38:00,419 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:38:00,419 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:38:00,419 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:38:00,420 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:38:00,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-02-14 16:38:00,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2019-02-14 16:38:00,421 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 37 [2019-02-14 16:38:00,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:38:00,421 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2019-02-14 16:38:00,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has 41 states. [2019-02-14 16:38:00,421 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2019-02-14 16:38:00,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-02-14 16:38:00,422 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:38:00,422 INFO L402 BasicCegarLoop]: trace histogram [19, 18, 1, 1] [2019-02-14 16:38:00,422 INFO L423 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:38:00,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:38:00,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1291894020, now seen corresponding path program 18 times [2019-02-14 16:38:00,422 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:38:00,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:38:00,423 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:38:00,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:38:00,424 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:38:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:38:00,783 WARN L181 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-14 16:38:01,576 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 [2019-02-14 16:38:01,578 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 [2019-02-14 16:38:01,578 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 [2019-02-14 16:38:01,579 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 [2019-02-14 16:38:01,580 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 [2019-02-14 16:38:01,581 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 [2019-02-14 16:38:01,582 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 [2019-02-14 16:38:01,583 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 [2019-02-14 16:38:01,584 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 [2019-02-14 16:38:01,585 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 [2019-02-14 16:38:01,586 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 [2019-02-14 16:38:01,587 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 [2019-02-14 16:38:01,588 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 [2019-02-14 16:38:01,589 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 [2019-02-14 16:38:01,589 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 [2019-02-14 16:38:01,590 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 [2019-02-14 16:38:01,591 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 [2019-02-14 16:38:01,592 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 [2019-02-14 16:38:01,593 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 [2019-02-14 16:38:01,594 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 [2019-02-14 16:38:01,595 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 [2019-02-14 16:38:01,596 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 [2019-02-14 16:38:01,597 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 [2019-02-14 16:38:01,598 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 [2019-02-14 16:38:01,598 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 [2019-02-14 16:38:01,599 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 [2019-02-14 16:38:01,600 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 [2019-02-14 16:38:01,601 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 [2019-02-14 16:38:01,602 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 [2019-02-14 16:38:01,603 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 [2019-02-14 16:38:01,604 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 [2019-02-14 16:38:01,605 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 [2019-02-14 16:38:01,606 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 [2019-02-14 16:38:01,607 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 [2019-02-14 16:38:01,607 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 [2019-02-14 16:38:01,609 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 [2019-02-14 16:38:01,610 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 [2019-02-14 16:38:01,611 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 [2019-02-14 16:38:01,611 INFO L273 TraceCheckUtils]: 38: Hoare triple {4870#(and (<= main_i 76) (<= 19 main_n))} assume !(i <= n * 4); {4849#false} is VALID [2019-02-14 16:38:01,620 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:38:01,620 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:38:01,620 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:38:01,620 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:38:01,620 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:38:01,621 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:38:01,621 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 [2019-02-14 16:38:01,630 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:38:01,630 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:38:01,640 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:38:01,641 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:38:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:38:01,658 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:38:01,666 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 [2019-02-14 16:38:01,672 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:38:01,676 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:38:01,676 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:38:01,678 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:38:01,678 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_22]. (and (= (store v_main_a_22 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:38:01,678 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:38:02,447 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 [2019-02-14 16:38:02,449 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:38:02,455 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:38:02,455 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:38:02,457 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:38:02,458 WARN L398 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)))) [2019-02-14 16:38:02,458 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 76) (<= 72 .cse0) (not (= 72 .cse0)))) [2019-02-14 16:38:02,485 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 [2019-02-14 16:38:02,485 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 [2019-02-14 16:38:02,486 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 [2019-02-14 16:38:02,486 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 [2019-02-14 16:38:02,487 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 [2019-02-14 16:38:02,487 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 [2019-02-14 16:38:02,488 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 [2019-02-14 16:38:02,489 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 [2019-02-14 16:38:02,489 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 [2019-02-14 16:38:02,490 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 [2019-02-14 16:38:02,491 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 [2019-02-14 16:38:02,491 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 [2019-02-14 16:38:02,492 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 [2019-02-14 16:38:02,493 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 [2019-02-14 16:38:02,493 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 [2019-02-14 16:38:02,494 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 [2019-02-14 16:38:02,495 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 [2019-02-14 16:38:02,496 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 [2019-02-14 16:38:02,496 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 [2019-02-14 16:38:02,497 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 [2019-02-14 16:38:02,498 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 [2019-02-14 16:38:02,498 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 [2019-02-14 16:38:02,499 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 [2019-02-14 16:38:02,500 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 [2019-02-14 16:38:02,500 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 [2019-02-14 16:38:02,501 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 [2019-02-14 16:38:02,502 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 [2019-02-14 16:38:02,502 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 [2019-02-14 16:38:02,503 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 [2019-02-14 16:38:02,504 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 [2019-02-14 16:38:02,504 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 [2019-02-14 16:38:02,505 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 [2019-02-14 16:38:02,506 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 [2019-02-14 16:38:02,507 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 [2019-02-14 16:38:02,507 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 [2019-02-14 16:38:02,508 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 [2019-02-14 16:38:02,509 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 [2019-02-14 16:38:02,510 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 [2019-02-14 16:38:02,510 INFO L273 TraceCheckUtils]: 38: Hoare triple {4870#(and (<= main_i 76) (<= 19 main_n))} assume !(i <= n * 4); {4849#false} is VALID [2019-02-14 16:38:02,515 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:38:02,515 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:38:03,817 INFO L273 TraceCheckUtils]: 38: Hoare triple {5008#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {4849#false} is VALID [2019-02-14 16:38:03,818 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 [2019-02-14 16:38:03,819 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 [2019-02-14 16:38:03,819 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 [2019-02-14 16:38:03,820 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 [2019-02-14 16:38:03,820 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 [2019-02-14 16:38:03,821 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 [2019-02-14 16:38:03,822 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 [2019-02-14 16:38:03,822 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 [2019-02-14 16:38:03,823 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 [2019-02-14 16:38:03,824 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 [2019-02-14 16:38:03,825 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 [2019-02-14 16:38:03,826 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 [2019-02-14 16:38:03,827 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 [2019-02-14 16:38:03,827 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 [2019-02-14 16:38:03,828 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 [2019-02-14 16:38:03,829 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 [2019-02-14 16:38:03,830 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 [2019-02-14 16:38:03,830 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 [2019-02-14 16:38:03,832 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 [2019-02-14 16:38:03,832 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 [2019-02-14 16:38:03,833 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 [2019-02-14 16:38:03,834 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 [2019-02-14 16:38:03,835 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 [2019-02-14 16:38:03,835 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 [2019-02-14 16:38:03,836 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 [2019-02-14 16:38:03,837 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 [2019-02-14 16:38:03,838 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 [2019-02-14 16:38:03,839 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 [2019-02-14 16:38:03,840 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 [2019-02-14 16:38:03,840 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 [2019-02-14 16:38:03,841 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 [2019-02-14 16:38:03,842 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 [2019-02-14 16:38:03,843 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 [2019-02-14 16:38:03,843 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 [2019-02-14 16:38:03,844 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 [2019-02-14 16:38:03,845 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 [2019-02-14 16:38:03,846 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 [2019-02-14 16:38:03,847 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 [2019-02-14 16:38:03,854 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:38:03,873 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:38:03,873 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 62 [2019-02-14 16:38:03,873 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:38:03,873 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 39 [2019-02-14 16:38:03,873 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:38:03,874 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 43 states. [2019-02-14 16:38:03,977 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 77 edges. 77 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:38:03,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2019-02-14 16:38:03,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2019-02-14 16:38:03,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=554, Invalid=3478, Unknown=0, NotChecked=0, Total=4032 [2019-02-14 16:38:03,979 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 43 states. [2019-02-14 16:38:06,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:38:06,876 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2019-02-14 16:38:06,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-02-14 16:38:06,877 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 39 [2019-02-14 16:38:06,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:38:06,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-02-14 16:38:06,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 44 transitions. [2019-02-14 16:38:06,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-02-14 16:38:06,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 44 transitions. [2019-02-14 16:38:06,880 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states and 44 transitions. [2019-02-14 16:38:06,938 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:38:06,939 INFO L225 Difference]: With dead ends: 44 [2019-02-14 16:38:06,939 INFO L226 Difference]: Without dead ends: 43 [2019-02-14 16:38:06,941 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 920 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=554, Invalid=3478, Unknown=0, NotChecked=0, Total=4032 [2019-02-14 16:38:06,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-02-14 16:38:06,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2019-02-14 16:38:06,979 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:38:06,979 INFO L82 GeneralOperation]: Start isEquivalent. First operand 43 states. Second operand 42 states. [2019-02-14 16:38:06,980 INFO L74 IsIncluded]: Start isIncluded. First operand 43 states. Second operand 42 states. [2019-02-14 16:38:06,980 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 42 states. [2019-02-14 16:38:06,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:38:06,981 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2019-02-14 16:38:06,981 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2019-02-14 16:38:06,982 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:38:06,982 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:38:06,982 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 43 states. [2019-02-14 16:38:06,982 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 43 states. [2019-02-14 16:38:06,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:38:06,983 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2019-02-14 16:38:06,983 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2019-02-14 16:38:06,984 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:38:06,984 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:38:06,984 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:38:06,984 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:38:06,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-02-14 16:38:06,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2019-02-14 16:38:06,985 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 39 [2019-02-14 16:38:06,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:38:06,985 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2019-02-14 16:38:06,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has 43 states. [2019-02-14 16:38:06,986 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2019-02-14 16:38:06,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-02-14 16:38:06,986 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:38:06,986 INFO L402 BasicCegarLoop]: trace histogram [20, 19, 1, 1] [2019-02-14 16:38:06,986 INFO L423 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:38:06,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:38:06,987 INFO L82 PathProgramCache]: Analyzing trace with hash 264605766, now seen corresponding path program 19 times [2019-02-14 16:38:06,987 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:38:06,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:38:06,988 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:38:06,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:38:06,988 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:38:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:38:07,302 WARN L181 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-14 16:38:08,451 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 [2019-02-14 16:38:08,452 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 [2019-02-14 16:38:08,453 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 [2019-02-14 16:38:08,454 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 [2019-02-14 16:38:08,455 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 [2019-02-14 16:38:08,456 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 [2019-02-14 16:38:08,456 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 [2019-02-14 16:38:08,457 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 [2019-02-14 16:38:08,458 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 [2019-02-14 16:38:08,459 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 [2019-02-14 16:38:08,460 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 [2019-02-14 16:38:08,461 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 [2019-02-14 16:38:08,462 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 [2019-02-14 16:38:08,463 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 [2019-02-14 16:38:08,464 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 [2019-02-14 16:38:08,465 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 [2019-02-14 16:38:08,465 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 [2019-02-14 16:38:08,466 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 [2019-02-14 16:38:08,467 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 [2019-02-14 16:38:08,468 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 [2019-02-14 16:38:08,469 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 [2019-02-14 16:38:08,470 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 [2019-02-14 16:38:08,471 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 [2019-02-14 16:38:08,472 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 [2019-02-14 16:38:08,473 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 [2019-02-14 16:38:08,474 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 [2019-02-14 16:38:08,475 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 [2019-02-14 16:38:08,476 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 [2019-02-14 16:38:08,477 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 [2019-02-14 16:38:08,478 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 [2019-02-14 16:38:08,479 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 [2019-02-14 16:38:08,480 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 [2019-02-14 16:38:08,480 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 [2019-02-14 16:38:08,482 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 [2019-02-14 16:38:08,482 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 [2019-02-14 16:38:08,484 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 [2019-02-14 16:38:08,484 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 [2019-02-14 16:38:08,486 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 [2019-02-14 16:38:08,487 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 [2019-02-14 16:38:08,488 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 [2019-02-14 16:38:08,488 INFO L273 TraceCheckUtils]: 40: Hoare triple {5378#(and (<= 20 main_n) (<= main_i 80))} assume !(i <= n * 4); {5356#false} is VALID [2019-02-14 16:38:08,497 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:38:08,497 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:38:08,497 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:38:08,498 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:38:08,498 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:38:08,498 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:38:08,498 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 [2019-02-14 16:38:08,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:38:08,508 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:38:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:38:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:38:08,531 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:38:08,551 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 [2019-02-14 16:38:08,553 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:38:08,561 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:38:08,561 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:38:08,562 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:38:08,563 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_23]. (and (= main_i 0) (= (store v_main_a_23 (* 4 main_n) 23) main_a)) [2019-02-14 16:38:08,563 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:38:09,645 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 [2019-02-14 16:38:09,647 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:38:09,652 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:38:09,652 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:38:09,654 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:38:09,655 WARN L398 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))) [2019-02-14 16:38:09,655 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 76 .cse0) (not (= 76 .cse0)) (<= main_i 80))) [2019-02-14 16:38:09,682 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 [2019-02-14 16:38:09,683 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 [2019-02-14 16:38:09,683 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 [2019-02-14 16:38:09,684 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 [2019-02-14 16:38:09,685 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 [2019-02-14 16:38:09,685 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 [2019-02-14 16:38:09,686 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 [2019-02-14 16:38:09,687 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 [2019-02-14 16:38:09,688 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 [2019-02-14 16:38:09,688 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 [2019-02-14 16:38:09,689 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 [2019-02-14 16:38:09,690 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 [2019-02-14 16:38:09,691 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 [2019-02-14 16:38:09,691 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 [2019-02-14 16:38:09,692 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 [2019-02-14 16:38:09,693 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 [2019-02-14 16:38:09,694 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 [2019-02-14 16:38:09,694 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 [2019-02-14 16:38:09,695 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 [2019-02-14 16:38:09,696 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 [2019-02-14 16:38:09,697 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 [2019-02-14 16:38:09,697 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 [2019-02-14 16:38:09,698 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 [2019-02-14 16:38:09,699 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 [2019-02-14 16:38:09,700 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 [2019-02-14 16:38:09,700 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 [2019-02-14 16:38:09,701 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 [2019-02-14 16:38:09,702 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 [2019-02-14 16:38:09,702 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 [2019-02-14 16:38:09,703 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 [2019-02-14 16:38:09,704 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 [2019-02-14 16:38:09,705 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 [2019-02-14 16:38:09,705 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 [2019-02-14 16:38:09,706 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 [2019-02-14 16:38:09,707 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 [2019-02-14 16:38:09,708 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 [2019-02-14 16:38:09,708 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 [2019-02-14 16:38:09,709 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 [2019-02-14 16:38:09,710 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 [2019-02-14 16:38:09,711 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 [2019-02-14 16:38:09,712 INFO L273 TraceCheckUtils]: 40: Hoare triple {5378#(and (<= 20 main_n) (<= main_i 80))} assume !(i <= n * 4); {5356#false} is VALID [2019-02-14 16:38:09,718 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:38:09,718 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:38:11,166 INFO L273 TraceCheckUtils]: 40: Hoare triple {5523#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {5356#false} is VALID [2019-02-14 16:38:11,167 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 [2019-02-14 16:38:11,168 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 [2019-02-14 16:38:11,169 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 [2019-02-14 16:38:11,169 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 [2019-02-14 16:38:11,170 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 [2019-02-14 16:38:11,171 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 [2019-02-14 16:38:11,172 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 [2019-02-14 16:38:11,173 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 [2019-02-14 16:38:11,174 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 [2019-02-14 16:38:11,174 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 [2019-02-14 16:38:11,175 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 [2019-02-14 16:38:11,176 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 [2019-02-14 16:38:11,177 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 [2019-02-14 16:38:11,177 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 [2019-02-14 16:38:11,179 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 [2019-02-14 16:38:11,179 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 [2019-02-14 16:38:11,180 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 [2019-02-14 16:38:11,181 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 [2019-02-14 16:38:11,182 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 [2019-02-14 16:38:11,182 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 [2019-02-14 16:38:11,183 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 [2019-02-14 16:38:11,184 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 [2019-02-14 16:38:11,185 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 [2019-02-14 16:38:11,185 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 [2019-02-14 16:38:11,187 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 [2019-02-14 16:38:11,187 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 [2019-02-14 16:38:11,188 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 [2019-02-14 16:38:11,189 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 [2019-02-14 16:38:11,190 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 [2019-02-14 16:38:11,190 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 [2019-02-14 16:38:11,191 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 [2019-02-14 16:38:11,192 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 [2019-02-14 16:38:11,193 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 [2019-02-14 16:38:11,193 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 [2019-02-14 16:38:11,195 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 [2019-02-14 16:38:11,195 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 [2019-02-14 16:38:11,196 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 [2019-02-14 16:38:11,197 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 [2019-02-14 16:38:11,198 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 [2019-02-14 16:38:11,199 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 [2019-02-14 16:38:11,206 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:38:11,226 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:38:11,226 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 65 [2019-02-14 16:38:11,226 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:38:11,226 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 41 [2019-02-14 16:38:11,227 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:38:11,227 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 45 states. [2019-02-14 16:38:11,365 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 81 edges. 81 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:38:11,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2019-02-14 16:38:11,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2019-02-14 16:38:11,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=602, Invalid=3820, Unknown=0, NotChecked=0, Total=4422 [2019-02-14 16:38:11,367 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand 45 states. [2019-02-14 16:38:14,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:38:14,806 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2019-02-14 16:38:14,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-02-14 16:38:14,806 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 41 [2019-02-14 16:38:14,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:38:14,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-02-14 16:38:14,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 46 transitions. [2019-02-14 16:38:14,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-02-14 16:38:14,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 46 transitions. [2019-02-14 16:38:14,808 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 24 states and 46 transitions. [2019-02-14 16:38:14,855 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:38:14,856 INFO L225 Difference]: With dead ends: 46 [2019-02-14 16:38:14,856 INFO L226 Difference]: Without dead ends: 45 [2019-02-14 16:38:14,857 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 [2019-02-14 16:38:14,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-02-14 16:38:14,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2019-02-14 16:38:14,895 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:38:14,895 INFO L82 GeneralOperation]: Start isEquivalent. First operand 45 states. Second operand 44 states. [2019-02-14 16:38:14,896 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 44 states. [2019-02-14 16:38:14,896 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 44 states. [2019-02-14 16:38:14,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:38:14,897 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2019-02-14 16:38:14,897 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2019-02-14 16:38:14,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:38:14,897 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:38:14,898 INFO L74 IsIncluded]: Start isIncluded. First operand 44 states. Second operand 45 states. [2019-02-14 16:38:14,898 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 45 states. [2019-02-14 16:38:14,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:38:14,899 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2019-02-14 16:38:14,899 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2019-02-14 16:38:14,899 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:38:14,899 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:38:14,899 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:38:14,899 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:38:14,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-02-14 16:38:14,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2019-02-14 16:38:14,900 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 41 [2019-02-14 16:38:14,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:38:14,901 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2019-02-14 16:38:14,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has 45 states. [2019-02-14 16:38:14,901 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2019-02-14 16:38:14,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-02-14 16:38:14,901 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:38:14,901 INFO L402 BasicCegarLoop]: trace histogram [21, 20, 1, 1] [2019-02-14 16:38:14,902 INFO L423 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:38:14,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:38:14,902 INFO L82 PathProgramCache]: Analyzing trace with hash 883071752, now seen corresponding path program 20 times [2019-02-14 16:38:14,902 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:38:14,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:38:14,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:38:14,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:38:14,903 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:38:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:38:15,891 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 [2019-02-14 16:38:15,892 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 [2019-02-14 16:38:15,893 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 [2019-02-14 16:38:15,894 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 [2019-02-14 16:38:15,895 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 [2019-02-14 16:38:15,896 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 [2019-02-14 16:38:15,897 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 [2019-02-14 16:38:15,898 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 [2019-02-14 16:38:15,899 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 [2019-02-14 16:38:15,900 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 [2019-02-14 16:38:15,900 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 [2019-02-14 16:38:15,901 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 [2019-02-14 16:38:15,902 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 [2019-02-14 16:38:15,903 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 [2019-02-14 16:38:15,904 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 [2019-02-14 16:38:15,905 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 [2019-02-14 16:38:15,906 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 [2019-02-14 16:38:15,907 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 [2019-02-14 16:38:15,908 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 [2019-02-14 16:38:15,909 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 [2019-02-14 16:38:15,910 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 [2019-02-14 16:38:15,911 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 [2019-02-14 16:38:15,911 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 [2019-02-14 16:38:15,912 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 [2019-02-14 16:38:15,913 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 [2019-02-14 16:38:15,914 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 [2019-02-14 16:38:15,915 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 [2019-02-14 16:38:15,916 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 [2019-02-14 16:38:15,917 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 [2019-02-14 16:38:15,935 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 [2019-02-14 16:38:15,936 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 [2019-02-14 16:38:15,937 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 [2019-02-14 16:38:15,937 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 [2019-02-14 16:38:15,938 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 [2019-02-14 16:38:15,938 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 [2019-02-14 16:38:15,939 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 [2019-02-14 16:38:15,940 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 [2019-02-14 16:38:15,941 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 [2019-02-14 16:38:15,941 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 [2019-02-14 16:38:15,943 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 [2019-02-14 16:38:15,944 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 [2019-02-14 16:38:15,945 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 [2019-02-14 16:38:15,946 INFO L273 TraceCheckUtils]: 42: Hoare triple {5911#(and (<= main_i 84) (<= 21 main_n))} assume !(i <= n * 4); {5888#false} is VALID [2019-02-14 16:38:15,955 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:38:15,955 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:38:15,955 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:38:15,955 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:38:15,956 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:38:15,956 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:38:15,956 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 [2019-02-14 16:38:15,964 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:38:15,964 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:38:15,988 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2019-02-14 16:38:15,988 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:38:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:38:15,996 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:38:16,015 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 [2019-02-14 16:38:16,017 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:38:16,024 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:38:16,025 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:38:16,027 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:38:16,027 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_24]. (and (= main_a (store v_main_a_24 (* 4 main_n) 23)) (= main_i 0)) [2019-02-14 16:38:16,027 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:38:17,169 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 [2019-02-14 16:38:17,171 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:38:17,178 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:38:17,178 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:38:17,181 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:38:17,181 WARN L398 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))) [2019-02-14 16:38:17,181 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 84) (not (= 80 .cse0)) (<= 80 .cse0))) [2019-02-14 16:38:17,208 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 [2019-02-14 16:38:17,209 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 [2019-02-14 16:38:17,209 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 [2019-02-14 16:38:17,210 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 [2019-02-14 16:38:17,210 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 [2019-02-14 16:38:17,211 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 [2019-02-14 16:38:17,212 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 [2019-02-14 16:38:17,212 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 [2019-02-14 16:38:17,213 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 [2019-02-14 16:38:17,214 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 [2019-02-14 16:38:17,215 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 [2019-02-14 16:38:17,215 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 [2019-02-14 16:38:17,216 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 [2019-02-14 16:38:17,217 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 [2019-02-14 16:38:17,217 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 [2019-02-14 16:38:17,218 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 [2019-02-14 16:38:17,219 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 [2019-02-14 16:38:17,220 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 [2019-02-14 16:38:17,220 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 [2019-02-14 16:38:17,221 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 [2019-02-14 16:38:17,222 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 [2019-02-14 16:38:17,222 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 [2019-02-14 16:38:17,223 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 [2019-02-14 16:38:17,224 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 [2019-02-14 16:38:17,225 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 [2019-02-14 16:38:17,225 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 [2019-02-14 16:38:17,226 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 [2019-02-14 16:38:17,227 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 [2019-02-14 16:38:17,227 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 [2019-02-14 16:38:17,228 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 [2019-02-14 16:38:17,229 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 [2019-02-14 16:38:17,230 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 [2019-02-14 16:38:17,230 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 [2019-02-14 16:38:17,231 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 [2019-02-14 16:38:17,232 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 [2019-02-14 16:38:17,232 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 [2019-02-14 16:38:17,233 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 [2019-02-14 16:38:17,234 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 [2019-02-14 16:38:17,234 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 [2019-02-14 16:38:17,235 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 [2019-02-14 16:38:17,236 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 [2019-02-14 16:38:17,237 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 [2019-02-14 16:38:17,238 INFO L273 TraceCheckUtils]: 42: Hoare triple {5911#(and (<= main_i 84) (<= 21 main_n))} assume !(i <= n * 4); {5888#false} is VALID [2019-02-14 16:38:17,244 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:38:17,244 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:38:19,072 INFO L273 TraceCheckUtils]: 42: Hoare triple {6063#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {5888#false} is VALID [2019-02-14 16:38:19,073 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 [2019-02-14 16:38:19,074 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 [2019-02-14 16:38:19,075 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 [2019-02-14 16:38:19,076 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 [2019-02-14 16:38:19,077 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 [2019-02-14 16:38:19,077 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 [2019-02-14 16:38:19,079 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 [2019-02-14 16:38:19,079 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 [2019-02-14 16:38:19,080 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 [2019-02-14 16:38:19,081 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 [2019-02-14 16:38:19,082 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 [2019-02-14 16:38:19,083 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 [2019-02-14 16:38:19,084 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 [2019-02-14 16:38:19,084 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 [2019-02-14 16:38:19,085 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 [2019-02-14 16:38:19,086 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 [2019-02-14 16:38:19,087 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 [2019-02-14 16:38:19,087 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 [2019-02-14 16:38:19,088 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 [2019-02-14 16:38:19,089 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 [2019-02-14 16:38:19,090 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 [2019-02-14 16:38:19,091 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 [2019-02-14 16:38:19,092 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 [2019-02-14 16:38:19,092 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 [2019-02-14 16:38:19,093 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 [2019-02-14 16:38:19,094 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 [2019-02-14 16:38:19,095 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 [2019-02-14 16:38:19,095 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 [2019-02-14 16:38:19,096 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 [2019-02-14 16:38:19,097 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 [2019-02-14 16:38:19,098 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 [2019-02-14 16:38:19,099 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 [2019-02-14 16:38:19,100 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 [2019-02-14 16:38:19,100 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 [2019-02-14 16:38:19,101 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 [2019-02-14 16:38:19,102 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 [2019-02-14 16:38:19,103 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 [2019-02-14 16:38:19,103 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 [2019-02-14 16:38:19,104 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 [2019-02-14 16:38:19,105 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 [2019-02-14 16:38:19,106 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 [2019-02-14 16:38:19,107 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 [2019-02-14 16:38:19,116 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:38:19,134 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:38:19,134 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 68 [2019-02-14 16:38:19,134 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:38:19,134 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 43 [2019-02-14 16:38:19,135 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:38:19,135 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 47 states. [2019-02-14 16:38:19,233 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 85 edges. 85 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:38:19,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2019-02-14 16:38:19,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2019-02-14 16:38:19,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=652, Invalid=4178, Unknown=0, NotChecked=0, Total=4830 [2019-02-14 16:38:19,234 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 47 states. [2019-02-14 16:38:21,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:38:21,805 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2019-02-14 16:38:21,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-02-14 16:38:21,805 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 43 [2019-02-14 16:38:21,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:38:21,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-02-14 16:38:21,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 48 transitions. [2019-02-14 16:38:21,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-02-14 16:38:21,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 48 transitions. [2019-02-14 16:38:21,808 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 25 states and 48 transitions. [2019-02-14 16:38:21,898 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 48 edges. 48 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:38:21,899 INFO L225 Difference]: With dead ends: 48 [2019-02-14 16:38:21,899 INFO L226 Difference]: Without dead ends: 47 [2019-02-14 16:38:21,900 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1100 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=652, Invalid=4178, Unknown=0, NotChecked=0, Total=4830 [2019-02-14 16:38:21,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-02-14 16:38:22,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2019-02-14 16:38:22,045 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:38:22,045 INFO L82 GeneralOperation]: Start isEquivalent. First operand 47 states. Second operand 46 states. [2019-02-14 16:38:22,045 INFO L74 IsIncluded]: Start isIncluded. First operand 47 states. Second operand 46 states. [2019-02-14 16:38:22,045 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 46 states. [2019-02-14 16:38:22,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:38:22,047 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2019-02-14 16:38:22,047 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2019-02-14 16:38:22,047 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:38:22,047 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:38:22,048 INFO L74 IsIncluded]: Start isIncluded. First operand 46 states. Second operand 47 states. [2019-02-14 16:38:22,048 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 47 states. [2019-02-14 16:38:22,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:38:22,049 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2019-02-14 16:38:22,049 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2019-02-14 16:38:22,049 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:38:22,049 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:38:22,049 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:38:22,049 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:38:22,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-02-14 16:38:22,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2019-02-14 16:38:22,050 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 43 [2019-02-14 16:38:22,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:38:22,051 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2019-02-14 16:38:22,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has 47 states. [2019-02-14 16:38:22,051 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2019-02-14 16:38:22,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-02-14 16:38:22,051 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:38:22,052 INFO L402 BasicCegarLoop]: trace histogram [22, 21, 1, 1] [2019-02-14 16:38:22,052 INFO L423 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:38:22,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:38:22,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1771569846, now seen corresponding path program 21 times [2019-02-14 16:38:22,052 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:38:22,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:38:22,053 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:38:22,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:38:22,053 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:38:22,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:38:22,385 WARN L181 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-14 16:38:23,285 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 [2019-02-14 16:38:23,286 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 [2019-02-14 16:38:23,287 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 [2019-02-14 16:38:23,288 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 [2019-02-14 16:38:23,288 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 [2019-02-14 16:38:23,290 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 [2019-02-14 16:38:23,290 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 [2019-02-14 16:38:23,291 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 [2019-02-14 16:38:23,292 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 [2019-02-14 16:38:23,293 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 [2019-02-14 16:38:23,294 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 [2019-02-14 16:38:23,295 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 [2019-02-14 16:38:23,296 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 [2019-02-14 16:38:23,297 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 [2019-02-14 16:38:23,297 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 [2019-02-14 16:38:23,299 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 [2019-02-14 16:38:23,299 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 [2019-02-14 16:38:23,300 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 [2019-02-14 16:38:23,301 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 [2019-02-14 16:38:23,302 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 [2019-02-14 16:38:23,303 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 [2019-02-14 16:38:23,304 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 [2019-02-14 16:38:23,305 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 [2019-02-14 16:38:23,306 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 [2019-02-14 16:38:23,307 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 [2019-02-14 16:38:23,308 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 [2019-02-14 16:38:23,308 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 [2019-02-14 16:38:23,310 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 [2019-02-14 16:38:23,310 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 [2019-02-14 16:38:23,311 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 [2019-02-14 16:38:23,312 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 [2019-02-14 16:38:23,313 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 [2019-02-14 16:38:23,314 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 [2019-02-14 16:38:23,315 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 [2019-02-14 16:38:23,316 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 [2019-02-14 16:38:23,317 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 [2019-02-14 16:38:23,318 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 [2019-02-14 16:38:23,319 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 [2019-02-14 16:38:23,319 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 [2019-02-14 16:38:23,320 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 [2019-02-14 16:38:23,321 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 [2019-02-14 16:38:23,322 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 [2019-02-14 16:38:23,323 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 [2019-02-14 16:38:23,324 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 [2019-02-14 16:38:23,325 INFO L273 TraceCheckUtils]: 44: Hoare triple {6469#(and (<= main_i 88) (<= 22 main_n))} assume !(i <= n * 4); {6445#false} is VALID [2019-02-14 16:38:23,335 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:38:23,335 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:38:23,335 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:38:23,335 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:38:23,335 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:38:23,335 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:38:23,336 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 [2019-02-14 16:38:23,343 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:38:23,343 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:38:23,361 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:38:23,361 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:38:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:38:23,372 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:38:23,379 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 [2019-02-14 16:38:23,383 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:38:23,390 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:38:23,390 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:38:23,394 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:38:23,394 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_25]. (and (= main_i 0) (= main_a (store v_main_a_25 (* 4 main_n) 23))) [2019-02-14 16:38:23,395 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:38:24,702 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 [2019-02-14 16:38:24,708 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:38:24,718 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:38:24,718 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:38:24,720 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:38:24,720 WARN L398 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))) [2019-02-14 16:38:24,721 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 88) (not (= 84 .cse0)) (<= 84 .cse0))) [2019-02-14 16:38:24,811 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 [2019-02-14 16:38:24,812 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 [2019-02-14 16:38:24,812 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 [2019-02-14 16:38:24,814 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 [2019-02-14 16:38:24,814 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 [2019-02-14 16:38:24,816 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 [2019-02-14 16:38:24,816 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 [2019-02-14 16:38:24,817 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 [2019-02-14 16:38:24,817 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 [2019-02-14 16:38:24,818 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 [2019-02-14 16:38:24,818 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 [2019-02-14 16:38:24,819 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 [2019-02-14 16:38:24,820 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 [2019-02-14 16:38:24,820 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 [2019-02-14 16:38:24,821 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 [2019-02-14 16:38:24,822 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 [2019-02-14 16:38:24,822 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 [2019-02-14 16:38:24,823 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 [2019-02-14 16:38:24,824 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 [2019-02-14 16:38:24,825 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 [2019-02-14 16:38:24,825 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 [2019-02-14 16:38:24,826 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 [2019-02-14 16:38:24,827 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 [2019-02-14 16:38:24,827 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 [2019-02-14 16:38:24,828 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 [2019-02-14 16:38:24,829 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 [2019-02-14 16:38:24,829 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 [2019-02-14 16:38:24,830 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 [2019-02-14 16:38:24,831 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 [2019-02-14 16:38:24,831 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 [2019-02-14 16:38:24,832 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 [2019-02-14 16:38:24,833 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 [2019-02-14 16:38:24,833 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 [2019-02-14 16:38:24,834 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 [2019-02-14 16:38:24,835 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 [2019-02-14 16:38:24,836 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 [2019-02-14 16:38:24,836 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 [2019-02-14 16:38:24,837 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 [2019-02-14 16:38:24,838 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 [2019-02-14 16:38:24,838 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 [2019-02-14 16:38:24,839 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 [2019-02-14 16:38:24,840 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 [2019-02-14 16:38:24,840 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 [2019-02-14 16:38:24,841 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 [2019-02-14 16:38:24,842 INFO L273 TraceCheckUtils]: 44: Hoare triple {6469#(and (<= main_i 88) (<= 22 main_n))} assume !(i <= n * 4); {6445#false} is VALID [2019-02-14 16:38:24,849 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:38:24,849 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:38:26,483 INFO L273 TraceCheckUtils]: 44: Hoare triple {6628#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {6445#false} is VALID [2019-02-14 16:38:26,484 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 [2019-02-14 16:38:26,484 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 [2019-02-14 16:38:26,485 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 [2019-02-14 16:38:26,486 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 [2019-02-14 16:38:26,487 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 [2019-02-14 16:38:26,488 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 [2019-02-14 16:38:26,489 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 [2019-02-14 16:38:26,489 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 [2019-02-14 16:38:26,490 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 [2019-02-14 16:38:26,491 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 [2019-02-14 16:38:26,492 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 [2019-02-14 16:38:26,492 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 [2019-02-14 16:38:26,493 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 [2019-02-14 16:38:26,505 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 [2019-02-14 16:38:26,506 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 [2019-02-14 16:38:26,507 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 [2019-02-14 16:38:26,507 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 [2019-02-14 16:38:26,508 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 [2019-02-14 16:38:26,508 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 [2019-02-14 16:38:26,509 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 [2019-02-14 16:38:26,509 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 [2019-02-14 16:38:26,510 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 [2019-02-14 16:38:26,511 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 [2019-02-14 16:38:26,511 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 [2019-02-14 16:38:26,512 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 [2019-02-14 16:38:26,513 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 [2019-02-14 16:38:26,514 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 [2019-02-14 16:38:26,514 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 [2019-02-14 16:38:26,515 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 [2019-02-14 16:38:26,516 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 [2019-02-14 16:38:26,517 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 [2019-02-14 16:38:26,517 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 [2019-02-14 16:38:26,519 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 [2019-02-14 16:38:26,519 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 [2019-02-14 16:38:26,520 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 [2019-02-14 16:38:26,521 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 [2019-02-14 16:38:26,522 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 [2019-02-14 16:38:26,522 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 [2019-02-14 16:38:26,523 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 [2019-02-14 16:38:26,524 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 [2019-02-14 16:38:26,525 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 [2019-02-14 16:38:26,525 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 [2019-02-14 16:38:26,527 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 [2019-02-14 16:38:26,528 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 [2019-02-14 16:38:26,537 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:38:26,556 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:38:26,556 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 71 [2019-02-14 16:38:26,556 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:38:26,557 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 45 [2019-02-14 16:38:26,557 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:38:26,557 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 49 states. [2019-02-14 16:38:26,658 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 89 edges. 89 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:38:26,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 49 states [2019-02-14 16:38:26,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2019-02-14 16:38:26,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=704, Invalid=4552, Unknown=0, NotChecked=0, Total=5256 [2019-02-14 16:38:26,659 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 49 states. [2019-02-14 16:38:30,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:38:30,486 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2019-02-14 16:38:30,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-02-14 16:38:30,487 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 45 [2019-02-14 16:38:30,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:38:30,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-02-14 16:38:30,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 50 transitions. [2019-02-14 16:38:30,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-02-14 16:38:30,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 50 transitions. [2019-02-14 16:38:30,489 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 26 states and 50 transitions. [2019-02-14 16:38:30,541 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 50 edges. 50 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:38:30,542 INFO L225 Difference]: With dead ends: 50 [2019-02-14 16:38:30,542 INFO L226 Difference]: Without dead ends: 49 [2019-02-14 16:38:30,543 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1196 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=704, Invalid=4552, Unknown=0, NotChecked=0, Total=5256 [2019-02-14 16:38:30,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-02-14 16:38:30,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2019-02-14 16:38:30,584 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:38:30,584 INFO L82 GeneralOperation]: Start isEquivalent. First operand 49 states. Second operand 48 states. [2019-02-14 16:38:30,584 INFO L74 IsIncluded]: Start isIncluded. First operand 49 states. Second operand 48 states. [2019-02-14 16:38:30,585 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 48 states. [2019-02-14 16:38:30,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:38:30,586 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2019-02-14 16:38:30,586 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2019-02-14 16:38:30,586 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:38:30,587 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:38:30,587 INFO L74 IsIncluded]: Start isIncluded. First operand 48 states. Second operand 49 states. [2019-02-14 16:38:30,587 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 49 states. [2019-02-14 16:38:30,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:38:30,588 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2019-02-14 16:38:30,588 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2019-02-14 16:38:30,588 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:38:30,589 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:38:30,589 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:38:30,589 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:38:30,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-02-14 16:38:30,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2019-02-14 16:38:30,590 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 45 [2019-02-14 16:38:30,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:38:30,590 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2019-02-14 16:38:30,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has 49 states. [2019-02-14 16:38:30,590 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2019-02-14 16:38:30,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-02-14 16:38:30,590 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:38:30,590 INFO L402 BasicCegarLoop]: trace histogram [23, 22, 1, 1] [2019-02-14 16:38:30,591 INFO L423 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:38:30,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:38:30,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1671571700, now seen corresponding path program 22 times [2019-02-14 16:38:30,591 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:38:30,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:38:30,592 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:38:30,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:38:30,592 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:38:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:38:31,020 WARN L181 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-14 16:38:31,505 WARN L181 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-14 16:38:32,548 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 [2019-02-14 16:38:32,550 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 [2019-02-14 16:38:32,550 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 [2019-02-14 16:38:32,551 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 [2019-02-14 16:38:32,552 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 [2019-02-14 16:38:32,553 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 [2019-02-14 16:38:32,554 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 [2019-02-14 16:38:32,555 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 [2019-02-14 16:38:32,556 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 [2019-02-14 16:38:32,557 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 [2019-02-14 16:38:32,558 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 [2019-02-14 16:38:32,559 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 [2019-02-14 16:38:32,559 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 [2019-02-14 16:38:32,561 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 [2019-02-14 16:38:32,561 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 [2019-02-14 16:38:32,562 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 [2019-02-14 16:38:32,563 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 [2019-02-14 16:38:32,564 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 [2019-02-14 16:38:32,565 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 [2019-02-14 16:38:32,566 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 [2019-02-14 16:38:32,567 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 [2019-02-14 16:38:32,568 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 [2019-02-14 16:38:32,569 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 [2019-02-14 16:38:32,570 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 [2019-02-14 16:38:32,570 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 [2019-02-14 16:38:32,571 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 [2019-02-14 16:38:32,572 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 [2019-02-14 16:38:32,573 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 [2019-02-14 16:38:32,574 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 [2019-02-14 16:38:32,575 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 [2019-02-14 16:38:32,576 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 [2019-02-14 16:38:32,577 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 [2019-02-14 16:38:32,578 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 [2019-02-14 16:38:32,579 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 [2019-02-14 16:38:32,579 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 [2019-02-14 16:38:32,581 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 [2019-02-14 16:38:32,581 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 [2019-02-14 16:38:32,582 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 [2019-02-14 16:38:32,583 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 [2019-02-14 16:38:32,584 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 [2019-02-14 16:38:32,585 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 [2019-02-14 16:38:32,586 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 [2019-02-14 16:38:32,587 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 [2019-02-14 16:38:32,604 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 [2019-02-14 16:38:32,608 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 [2019-02-14 16:38:32,609 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 [2019-02-14 16:38:32,609 INFO L273 TraceCheckUtils]: 46: Hoare triple {7052#(and (<= main_i 92) (< 22 main_n))} assume !(i <= n * 4); {7027#false} is VALID [2019-02-14 16:38:32,622 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:38:32,623 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:38:32,623 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:38:32,623 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:38:32,623 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:38:32,623 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:38:32,623 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 [2019-02-14 16:38:32,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:38:32,641 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:38:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:38:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:38:32,664 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:38:32,684 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 [2019-02-14 16:38:32,689 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:38:32,692 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:38:32,692 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:38:32,694 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:38:32,694 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_26]. (and (= main_a (store v_main_a_26 (* 4 main_n) 23)) (= main_i 0)) [2019-02-14 16:38:32,694 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:38:33,689 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 [2019-02-14 16:38:33,691 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:38:33,697 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:38:33,698 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:38:33,700 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:38:33,700 WARN L398 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))) [2019-02-14 16:38:33,700 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 92) (not (= 88 .cse0)) (<= 88 .cse0))) [2019-02-14 16:38:33,731 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 [2019-02-14 16:38:33,731 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 [2019-02-14 16:38:33,732 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 [2019-02-14 16:38:33,733 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 [2019-02-14 16:38:33,733 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 [2019-02-14 16:38:33,734 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 [2019-02-14 16:38:33,735 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 [2019-02-14 16:38:33,736 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 [2019-02-14 16:38:33,736 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 [2019-02-14 16:38:33,737 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 [2019-02-14 16:38:33,738 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 [2019-02-14 16:38:33,738 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 [2019-02-14 16:38:33,739 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 [2019-02-14 16:38:33,740 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 [2019-02-14 16:38:33,740 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 [2019-02-14 16:38:33,741 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 [2019-02-14 16:38:33,742 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 [2019-02-14 16:38:33,743 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 [2019-02-14 16:38:33,743 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 [2019-02-14 16:38:33,744 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 [2019-02-14 16:38:33,745 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 [2019-02-14 16:38:33,745 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 [2019-02-14 16:38:33,746 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 [2019-02-14 16:38:33,747 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 [2019-02-14 16:38:33,747 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 [2019-02-14 16:38:33,748 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 [2019-02-14 16:38:33,749 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 [2019-02-14 16:38:33,750 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 [2019-02-14 16:38:33,750 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 [2019-02-14 16:38:33,751 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 [2019-02-14 16:38:33,752 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 [2019-02-14 16:38:33,752 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 [2019-02-14 16:38:33,753 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 [2019-02-14 16:38:33,754 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 [2019-02-14 16:38:33,755 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 [2019-02-14 16:38:33,755 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 [2019-02-14 16:38:33,756 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 [2019-02-14 16:38:33,757 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 [2019-02-14 16:38:33,758 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 [2019-02-14 16:38:33,758 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 [2019-02-14 16:38:33,759 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 [2019-02-14 16:38:33,760 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 [2019-02-14 16:38:33,760 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 [2019-02-14 16:38:33,761 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 [2019-02-14 16:38:33,762 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 [2019-02-14 16:38:33,763 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 [2019-02-14 16:38:33,764 INFO L273 TraceCheckUtils]: 46: Hoare triple {7052#(and (<= main_i 92) (< 22 main_n))} assume !(i <= n * 4); {7027#false} is VALID [2019-02-14 16:38:33,770 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:38:33,770 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:38:35,773 INFO L273 TraceCheckUtils]: 46: Hoare triple {7218#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {7027#false} is VALID [2019-02-14 16:38:35,774 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 [2019-02-14 16:38:35,775 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 [2019-02-14 16:38:35,776 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 [2019-02-14 16:38:35,777 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 [2019-02-14 16:38:35,778 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 [2019-02-14 16:38:35,778 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 [2019-02-14 16:38:35,779 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 [2019-02-14 16:38:35,780 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 [2019-02-14 16:38:35,781 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 [2019-02-14 16:38:35,782 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 [2019-02-14 16:38:35,783 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 [2019-02-14 16:38:35,783 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 [2019-02-14 16:38:35,784 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 [2019-02-14 16:38:35,785 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 [2019-02-14 16:38:35,786 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 [2019-02-14 16:38:35,786 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 [2019-02-14 16:38:35,787 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 [2019-02-14 16:38:35,788 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 [2019-02-14 16:38:35,789 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 [2019-02-14 16:38:35,790 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 [2019-02-14 16:38:35,791 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 [2019-02-14 16:38:35,791 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 [2019-02-14 16:38:35,792 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 [2019-02-14 16:38:35,793 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 [2019-02-14 16:38:35,794 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 [2019-02-14 16:38:35,794 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 [2019-02-14 16:38:35,796 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 [2019-02-14 16:38:35,796 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 [2019-02-14 16:38:35,797 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 [2019-02-14 16:38:35,798 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 [2019-02-14 16:38:35,799 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 [2019-02-14 16:38:35,799 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 [2019-02-14 16:38:35,800 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 [2019-02-14 16:38:35,801 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 [2019-02-14 16:38:35,802 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 [2019-02-14 16:38:35,802 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 [2019-02-14 16:38:35,803 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 [2019-02-14 16:38:35,804 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 [2019-02-14 16:38:35,805 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 [2019-02-14 16:38:35,806 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 [2019-02-14 16:38:35,807 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 [2019-02-14 16:38:35,807 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 [2019-02-14 16:38:35,808 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 [2019-02-14 16:38:35,809 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 [2019-02-14 16:38:35,810 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 [2019-02-14 16:38:35,811 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 [2019-02-14 16:38:35,821 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:38:35,840 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:38:35,840 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 74 [2019-02-14 16:38:35,840 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:38:35,841 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 47 [2019-02-14 16:38:35,841 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:38:35,841 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 51 states. [2019-02-14 16:38:35,948 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 93 edges. 93 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:38:35,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 51 states [2019-02-14 16:38:35,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2019-02-14 16:38:35,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=758, Invalid=4942, Unknown=0, NotChecked=0, Total=5700 [2019-02-14 16:38:35,949 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 51 states. [2019-02-14 16:38:39,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:38:39,767 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2019-02-14 16:38:39,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-02-14 16:38:39,768 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 47 [2019-02-14 16:38:39,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:38:39,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-02-14 16:38:39,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 52 transitions. [2019-02-14 16:38:39,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-02-14 16:38:39,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 52 transitions. [2019-02-14 16:38:39,770 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 27 states and 52 transitions. [2019-02-14 16:38:39,858 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 52 edges. 52 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:38:39,858 INFO L225 Difference]: With dead ends: 52 [2019-02-14 16:38:39,859 INFO L226 Difference]: Without dead ends: 51 [2019-02-14 16:38:39,859 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1296 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=758, Invalid=4942, Unknown=0, NotChecked=0, Total=5700 [2019-02-14 16:38:39,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-02-14 16:38:39,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2019-02-14 16:38:39,963 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:38:39,963 INFO L82 GeneralOperation]: Start isEquivalent. First operand 51 states. Second operand 50 states. [2019-02-14 16:38:39,963 INFO L74 IsIncluded]: Start isIncluded. First operand 51 states. Second operand 50 states. [2019-02-14 16:38:39,963 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 50 states. [2019-02-14 16:38:39,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:38:39,964 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2019-02-14 16:38:39,964 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2019-02-14 16:38:39,965 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:38:39,965 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:38:39,965 INFO L74 IsIncluded]: Start isIncluded. First operand 50 states. Second operand 51 states. [2019-02-14 16:38:39,965 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 51 states. [2019-02-14 16:38:39,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:38:39,966 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2019-02-14 16:38:39,966 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2019-02-14 16:38:39,966 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:38:39,966 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:38:39,967 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:38:39,967 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:38:39,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-02-14 16:38:39,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2019-02-14 16:38:39,968 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 47 [2019-02-14 16:38:39,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:38:39,968 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2019-02-14 16:38:39,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has 51 states. [2019-02-14 16:38:39,968 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2019-02-14 16:38:39,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-02-14 16:38:39,969 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:38:39,969 INFO L402 BasicCegarLoop]: trace histogram [24, 23, 1, 1] [2019-02-14 16:38:39,969 INFO L423 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:38:39,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:38:39,969 INFO L82 PathProgramCache]: Analyzing trace with hash -62633906, now seen corresponding path program 23 times [2019-02-14 16:38:39,970 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:38:39,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:38:39,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:38:39,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:38:39,971 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:38:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:38:41,114 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 [2019-02-14 16:38:41,116 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 [2019-02-14 16:38:41,116 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 [2019-02-14 16:38:41,118 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 [2019-02-14 16:38:41,118 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 [2019-02-14 16:38:41,119 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 [2019-02-14 16:38:41,120 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 [2019-02-14 16:38:41,121 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 [2019-02-14 16:38:41,122 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 [2019-02-14 16:38:41,123 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 [2019-02-14 16:38:41,124 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 [2019-02-14 16:38:41,125 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 [2019-02-14 16:38:41,126 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 [2019-02-14 16:38:41,127 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 [2019-02-14 16:38:41,128 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 [2019-02-14 16:38:41,129 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 [2019-02-14 16:38:41,130 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 [2019-02-14 16:38:41,131 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 [2019-02-14 16:38:41,132 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 [2019-02-14 16:38:41,133 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 [2019-02-14 16:38:41,134 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 [2019-02-14 16:38:41,135 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 [2019-02-14 16:38:41,136 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 [2019-02-14 16:38:41,137 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 [2019-02-14 16:38:41,138 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 [2019-02-14 16:38:41,139 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 [2019-02-14 16:38:41,139 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 [2019-02-14 16:38:41,140 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 [2019-02-14 16:38:41,141 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 [2019-02-14 16:38:41,142 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 [2019-02-14 16:38:41,143 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 [2019-02-14 16:38:41,144 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 [2019-02-14 16:38:41,145 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 [2019-02-14 16:38:41,146 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 [2019-02-14 16:38:41,147 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 [2019-02-14 16:38:41,148 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 [2019-02-14 16:38:41,149 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 [2019-02-14 16:38:41,150 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 [2019-02-14 16:38:41,151 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 [2019-02-14 16:38:41,152 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 [2019-02-14 16:38:41,153 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 [2019-02-14 16:38:41,154 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 [2019-02-14 16:38:41,154 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 [2019-02-14 16:38:41,155 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 [2019-02-14 16:38:41,156 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 [2019-02-14 16:38:41,157 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 [2019-02-14 16:38:41,158 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 [2019-02-14 16:38:41,159 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 [2019-02-14 16:38:41,160 INFO L273 TraceCheckUtils]: 48: Hoare triple {7660#(and (<= main_i 96) (< 23 main_n))} assume !(i <= n * 4); {7634#false} is VALID [2019-02-14 16:38:41,173 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:38:41,173 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:38:41,173 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:38:41,173 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:38:41,173 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:38:41,173 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:38:41,173 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 [2019-02-14 16:38:41,181 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:38:41,182 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:38:41,209 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2019-02-14 16:38:41,209 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:38:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:38:41,217 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:38:41,236 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 [2019-02-14 16:38:41,237 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:38:41,246 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:38:41,246 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:38:41,248 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:38:41,248 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_27]. (and (= (store v_main_a_27 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:38:41,248 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:38:42,371 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 [2019-02-14 16:38:42,373 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:38:42,380 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:38:42,380 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:38:42,382 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:38:42,383 WARN L398 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)))) [2019-02-14 16:38:42,383 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 96) (not (= 92 .cse0)) (<= 92 .cse0))) [2019-02-14 16:38:42,413 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 [2019-02-14 16:38:42,413 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 [2019-02-14 16:38:42,414 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 [2019-02-14 16:38:42,414 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 [2019-02-14 16:38:42,415 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 [2019-02-14 16:38:42,415 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 [2019-02-14 16:38:42,416 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 [2019-02-14 16:38:42,417 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 [2019-02-14 16:38:42,418 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 [2019-02-14 16:38:42,418 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 [2019-02-14 16:38:42,419 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 [2019-02-14 16:38:42,420 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 [2019-02-14 16:38:42,420 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 [2019-02-14 16:38:42,421 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 [2019-02-14 16:38:42,422 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 [2019-02-14 16:38:42,422 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 [2019-02-14 16:38:42,423 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 [2019-02-14 16:38:42,424 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 [2019-02-14 16:38:42,424 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 [2019-02-14 16:38:42,425 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 [2019-02-14 16:38:42,426 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 [2019-02-14 16:38:42,427 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 [2019-02-14 16:38:42,427 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 [2019-02-14 16:38:42,428 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 [2019-02-14 16:38:42,429 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 [2019-02-14 16:38:42,429 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 [2019-02-14 16:38:42,430 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 [2019-02-14 16:38:42,431 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 [2019-02-14 16:38:42,431 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 [2019-02-14 16:38:42,432 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 [2019-02-14 16:38:42,433 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 [2019-02-14 16:38:42,433 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 [2019-02-14 16:38:42,434 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 [2019-02-14 16:38:42,435 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 [2019-02-14 16:38:42,435 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 [2019-02-14 16:38:42,436 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 [2019-02-14 16:38:42,437 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 [2019-02-14 16:38:42,437 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 [2019-02-14 16:38:42,438 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 [2019-02-14 16:38:42,439 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 [2019-02-14 16:38:42,440 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 [2019-02-14 16:38:42,440 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 [2019-02-14 16:38:42,441 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 [2019-02-14 16:38:42,442 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 [2019-02-14 16:38:42,442 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 [2019-02-14 16:38:42,443 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 [2019-02-14 16:38:42,444 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 [2019-02-14 16:38:42,445 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 [2019-02-14 16:38:42,445 INFO L273 TraceCheckUtils]: 48: Hoare triple {7660#(and (<= main_i 96) (< 23 main_n))} assume !(i <= n * 4); {7634#false} is VALID [2019-02-14 16:38:42,452 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:38:42,452 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:38:44,294 INFO L273 TraceCheckUtils]: 48: Hoare triple {7833#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {7634#false} is VALID [2019-02-14 16:38:44,295 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 [2019-02-14 16:38:44,295 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 [2019-02-14 16:38:44,296 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 [2019-02-14 16:38:44,297 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 [2019-02-14 16:38:44,298 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 [2019-02-14 16:38:44,298 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 [2019-02-14 16:38:44,300 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 [2019-02-14 16:38:44,300 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 [2019-02-14 16:38:44,301 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 [2019-02-14 16:38:44,302 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 [2019-02-14 16:38:44,303 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 [2019-02-14 16:38:44,303 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 [2019-02-14 16:38:44,304 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 [2019-02-14 16:38:44,305 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 [2019-02-14 16:38:44,306 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 [2019-02-14 16:38:44,306 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 [2019-02-14 16:38:44,308 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 [2019-02-14 16:38:44,308 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 [2019-02-14 16:38:44,309 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 [2019-02-14 16:38:44,310 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 [2019-02-14 16:38:44,311 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 [2019-02-14 16:38:44,311 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 [2019-02-14 16:38:44,312 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 [2019-02-14 16:38:44,313 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 [2019-02-14 16:38:44,314 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 [2019-02-14 16:38:44,314 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 [2019-02-14 16:38:44,315 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 [2019-02-14 16:38:44,316 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 [2019-02-14 16:38:44,317 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 [2019-02-14 16:38:44,318 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 [2019-02-14 16:38:44,319 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 [2019-02-14 16:38:44,319 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 [2019-02-14 16:38:44,320 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 [2019-02-14 16:38:44,321 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 [2019-02-14 16:38:44,322 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 [2019-02-14 16:38:44,322 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 [2019-02-14 16:38:44,323 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 [2019-02-14 16:38:44,324 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 [2019-02-14 16:38:44,325 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 [2019-02-14 16:38:44,326 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 [2019-02-14 16:38:44,327 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 [2019-02-14 16:38:44,327 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 [2019-02-14 16:38:44,328 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 [2019-02-14 16:38:44,329 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 [2019-02-14 16:38:44,330 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 [2019-02-14 16:38:44,330 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 [2019-02-14 16:38:44,331 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 [2019-02-14 16:38:44,332 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 [2019-02-14 16:38:44,343 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:38:44,362 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:38:44,362 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 77 [2019-02-14 16:38:44,363 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:38:44,363 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 49 [2019-02-14 16:38:44,363 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:38:44,363 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 53 states. [2019-02-14 16:38:44,474 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 97 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:38:44,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 53 states [2019-02-14 16:38:44,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2019-02-14 16:38:44,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=814, Invalid=5348, Unknown=0, NotChecked=0, Total=6162 [2019-02-14 16:38:44,476 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 53 states. [2019-02-14 16:38:49,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:38:49,089 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2019-02-14 16:38:49,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-02-14 16:38:49,089 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 49 [2019-02-14 16:38:49,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:38:49,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-02-14 16:38:49,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 54 transitions. [2019-02-14 16:38:49,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-02-14 16:38:49,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 54 transitions. [2019-02-14 16:38:49,091 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 28 states and 54 transitions. [2019-02-14 16:38:49,385 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 54 edges. 54 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:38:49,386 INFO L225 Difference]: With dead ends: 54 [2019-02-14 16:38:49,386 INFO L226 Difference]: Without dead ends: 53 [2019-02-14 16:38:49,387 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1400 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=814, Invalid=5348, Unknown=0, NotChecked=0, Total=6162 [2019-02-14 16:38:49,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-02-14 16:38:49,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2019-02-14 16:38:49,474 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:38:49,474 INFO L82 GeneralOperation]: Start isEquivalent. First operand 53 states. Second operand 52 states. [2019-02-14 16:38:49,474 INFO L74 IsIncluded]: Start isIncluded. First operand 53 states. Second operand 52 states. [2019-02-14 16:38:49,474 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 52 states. [2019-02-14 16:38:49,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:38:49,476 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2019-02-14 16:38:49,476 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2019-02-14 16:38:49,477 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:38:49,477 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:38:49,477 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand 53 states. [2019-02-14 16:38:49,477 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 53 states. [2019-02-14 16:38:49,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:38:49,478 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2019-02-14 16:38:49,478 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2019-02-14 16:38:49,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:38:49,479 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:38:49,479 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:38:49,479 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:38:49,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-02-14 16:38:49,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2019-02-14 16:38:49,481 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 49 [2019-02-14 16:38:49,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:38:49,481 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2019-02-14 16:38:49,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has 53 states. [2019-02-14 16:38:49,481 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2019-02-14 16:38:49,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-02-14 16:38:49,482 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:38:49,482 INFO L402 BasicCegarLoop]: trace histogram [25, 24, 1, 1] [2019-02-14 16:38:49,482 INFO L423 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:38:49,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:38:49,482 INFO L82 PathProgramCache]: Analyzing trace with hash -61640432, now seen corresponding path program 24 times [2019-02-14 16:38:49,482 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:38:49,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:38:49,483 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:38:49,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:38:49,483 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:38:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:38:49,918 WARN L181 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-14 16:38:51,353 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 [2019-02-14 16:38:51,355 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 [2019-02-14 16:38:51,356 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 [2019-02-14 16:38:51,357 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 [2019-02-14 16:38:51,358 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 [2019-02-14 16:38:51,359 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 [2019-02-14 16:38:51,359 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 [2019-02-14 16:38:51,361 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 [2019-02-14 16:38:51,361 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 [2019-02-14 16:38:51,362 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 [2019-02-14 16:38:51,363 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 [2019-02-14 16:38:51,364 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 [2019-02-14 16:38:51,365 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 [2019-02-14 16:38:51,366 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 [2019-02-14 16:38:51,367 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 [2019-02-14 16:38:51,368 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 [2019-02-14 16:38:51,369 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 [2019-02-14 16:38:51,370 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 [2019-02-14 16:38:51,371 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 [2019-02-14 16:38:51,372 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 [2019-02-14 16:38:51,373 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 [2019-02-14 16:38:51,374 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 [2019-02-14 16:38:51,375 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 [2019-02-14 16:38:51,376 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 [2019-02-14 16:38:51,377 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 [2019-02-14 16:38:51,378 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 [2019-02-14 16:38:51,379 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 [2019-02-14 16:38:51,380 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 [2019-02-14 16:38:51,380 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 [2019-02-14 16:38:51,382 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 [2019-02-14 16:38:51,382 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 [2019-02-14 16:38:51,383 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 [2019-02-14 16:38:51,384 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 [2019-02-14 16:38:51,385 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 [2019-02-14 16:38:51,386 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 [2019-02-14 16:38:51,387 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 [2019-02-14 16:38:51,388 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 [2019-02-14 16:38:51,389 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 [2019-02-14 16:38:51,390 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 [2019-02-14 16:38:51,391 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 [2019-02-14 16:38:51,392 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 [2019-02-14 16:38:51,393 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 [2019-02-14 16:38:51,394 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 [2019-02-14 16:38:51,395 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 [2019-02-14 16:38:51,396 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 [2019-02-14 16:38:51,397 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 [2019-02-14 16:38:51,398 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 [2019-02-14 16:38:51,399 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 [2019-02-14 16:38:51,400 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 [2019-02-14 16:38:51,401 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 [2019-02-14 16:38:51,402 INFO L273 TraceCheckUtils]: 50: Hoare triple {8293#(and (<= main_i 100) (<= 25 main_n))} assume !(i <= n * 4); {8266#false} is VALID [2019-02-14 16:38:51,415 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:38:51,415 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:38:51,415 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:38:51,415 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:38:51,416 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:38:51,416 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:38:51,416 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 [2019-02-14 16:38:51,425 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:38:51,425 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:38:51,442 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:38:51,443 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:38:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:38:51,450 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:38:51,460 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 [2019-02-14 16:38:51,460 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:38:51,465 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:38:51,465 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:38:51,468 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:38:51,468 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_28]. (and (= (store v_main_a_28 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:38:51,468 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:38:52,629 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 [2019-02-14 16:38:52,634 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:38:52,639 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:38:52,639 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:38:52,642 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:38:52,642 WARN L398 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)))) [2019-02-14 16:38:52,642 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 96 .cse0) (not (= 96 .cse0)) (<= main_i 100))) [2019-02-14 16:38:52,673 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 [2019-02-14 16:38:52,674 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 [2019-02-14 16:38:52,674 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 [2019-02-14 16:38:52,675 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 [2019-02-14 16:38:52,675 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 [2019-02-14 16:38:52,676 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 [2019-02-14 16:38:52,677 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 [2019-02-14 16:38:52,677 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 [2019-02-14 16:38:52,678 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 [2019-02-14 16:38:52,679 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 [2019-02-14 16:38:52,679 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 [2019-02-14 16:38:52,680 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 [2019-02-14 16:38:52,681 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 [2019-02-14 16:38:52,682 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 [2019-02-14 16:38:52,682 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 [2019-02-14 16:38:52,683 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 [2019-02-14 16:38:52,684 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 [2019-02-14 16:38:52,684 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 [2019-02-14 16:38:52,685 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 [2019-02-14 16:38:52,686 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 [2019-02-14 16:38:52,686 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 [2019-02-14 16:38:52,687 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 [2019-02-14 16:38:52,688 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 [2019-02-14 16:38:52,688 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 [2019-02-14 16:38:52,689 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 [2019-02-14 16:38:52,690 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 [2019-02-14 16:38:52,690 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 [2019-02-14 16:38:52,691 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 [2019-02-14 16:38:52,692 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 [2019-02-14 16:38:52,693 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 [2019-02-14 16:38:52,693 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 [2019-02-14 16:38:52,694 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 [2019-02-14 16:38:52,695 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 [2019-02-14 16:38:52,695 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 [2019-02-14 16:38:52,696 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 [2019-02-14 16:38:52,697 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 [2019-02-14 16:38:52,697 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 [2019-02-14 16:38:52,698 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 [2019-02-14 16:38:52,699 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 [2019-02-14 16:38:52,699 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 [2019-02-14 16:38:52,700 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 [2019-02-14 16:38:52,701 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 [2019-02-14 16:38:52,702 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 [2019-02-14 16:38:52,702 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 [2019-02-14 16:38:52,703 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 [2019-02-14 16:38:52,704 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 [2019-02-14 16:38:52,704 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 [2019-02-14 16:38:52,705 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 [2019-02-14 16:38:52,706 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 [2019-02-14 16:38:52,707 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 [2019-02-14 16:38:52,707 INFO L273 TraceCheckUtils]: 50: Hoare triple {8293#(and (<= main_i 100) (<= 25 main_n))} assume !(i <= n * 4); {8266#false} is VALID [2019-02-14 16:38:52,715 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:38:52,715 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:38:54,714 INFO L273 TraceCheckUtils]: 50: Hoare triple {8473#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {8266#false} is VALID [2019-02-14 16:38:54,715 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 [2019-02-14 16:38:54,716 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 [2019-02-14 16:38:54,717 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 [2019-02-14 16:38:54,718 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 [2019-02-14 16:38:54,719 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 [2019-02-14 16:38:54,719 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 [2019-02-14 16:38:54,720 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 [2019-02-14 16:38:54,721 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 [2019-02-14 16:38:54,722 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 [2019-02-14 16:38:54,723 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 [2019-02-14 16:38:54,724 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 [2019-02-14 16:38:54,724 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 [2019-02-14 16:38:54,725 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 [2019-02-14 16:38:54,726 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 [2019-02-14 16:38:54,727 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 [2019-02-14 16:38:54,727 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 [2019-02-14 16:38:54,728 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 [2019-02-14 16:38:54,729 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 [2019-02-14 16:38:54,730 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 [2019-02-14 16:38:54,731 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 [2019-02-14 16:38:54,732 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 [2019-02-14 16:38:54,732 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 [2019-02-14 16:38:54,733 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 [2019-02-14 16:38:54,734 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 [2019-02-14 16:38:54,735 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 [2019-02-14 16:38:54,735 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 [2019-02-14 16:38:54,737 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 [2019-02-14 16:38:54,737 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 [2019-02-14 16:38:54,746 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 [2019-02-14 16:38:54,746 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 [2019-02-14 16:38:54,747 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 [2019-02-14 16:38:54,747 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 [2019-02-14 16:38:54,748 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 [2019-02-14 16:38:54,748 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 [2019-02-14 16:38:54,749 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 [2019-02-14 16:38:54,750 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 [2019-02-14 16:38:54,751 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 [2019-02-14 16:38:54,751 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 [2019-02-14 16:38:54,752 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 [2019-02-14 16:38:54,753 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 [2019-02-14 16:38:54,754 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 [2019-02-14 16:38:54,754 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 [2019-02-14 16:38:54,756 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 [2019-02-14 16:38:54,756 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 [2019-02-14 16:38:54,757 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 [2019-02-14 16:38:54,758 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 [2019-02-14 16:38:54,759 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 [2019-02-14 16:38:54,759 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 [2019-02-14 16:38:54,760 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 [2019-02-14 16:38:54,762 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 [2019-02-14 16:38:54,773 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:38:54,791 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:38:54,792 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 80 [2019-02-14 16:38:54,792 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:38:54,792 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 51 [2019-02-14 16:38:54,792 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:38:54,792 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 55 states. [2019-02-14 16:38:55,003 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:38:55,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 55 states [2019-02-14 16:38:55,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2019-02-14 16:38:55,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=872, Invalid=5770, Unknown=0, NotChecked=0, Total=6642 [2019-02-14 16:38:55,005 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 55 states. [2019-02-14 16:39:00,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:39:00,046 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2019-02-14 16:39:00,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-02-14 16:39:00,046 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 51 [2019-02-14 16:39:00,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:39:00,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-02-14 16:39:00,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 56 transitions. [2019-02-14 16:39:00,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-02-14 16:39:00,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 56 transitions. [2019-02-14 16:39:00,049 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 29 states and 56 transitions. [2019-02-14 16:39:00,340 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 56 edges. 56 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:39:00,342 INFO L225 Difference]: With dead ends: 56 [2019-02-14 16:39:00,342 INFO L226 Difference]: Without dead ends: 55 [2019-02-14 16:39:00,342 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1508 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=872, Invalid=5770, Unknown=0, NotChecked=0, Total=6642 [2019-02-14 16:39:00,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-02-14 16:39:00,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2019-02-14 16:39:00,460 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:39:00,460 INFO L82 GeneralOperation]: Start isEquivalent. First operand 55 states. Second operand 54 states. [2019-02-14 16:39:00,460 INFO L74 IsIncluded]: Start isIncluded. First operand 55 states. Second operand 54 states. [2019-02-14 16:39:00,460 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 54 states. [2019-02-14 16:39:00,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:39:00,461 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2019-02-14 16:39:00,461 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2019-02-14 16:39:00,461 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:39:00,461 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:39:00,462 INFO L74 IsIncluded]: Start isIncluded. First operand 54 states. Second operand 55 states. [2019-02-14 16:39:00,462 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 55 states. [2019-02-14 16:39:00,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:39:00,462 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2019-02-14 16:39:00,463 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2019-02-14 16:39:00,463 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:39:00,463 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:39:00,463 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:39:00,463 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:39:00,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-02-14 16:39:00,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2019-02-14 16:39:00,464 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 51 [2019-02-14 16:39:00,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:39:00,464 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2019-02-14 16:39:00,464 INFO L481 AbstractCegarLoop]: Interpolant automaton has 55 states. [2019-02-14 16:39:00,464 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2019-02-14 16:39:00,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-02-14 16:39:00,465 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:39:00,465 INFO L402 BasicCegarLoop]: trace histogram [26, 25, 1, 1] [2019-02-14 16:39:00,465 INFO L423 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:39:00,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:39:00,465 INFO L82 PathProgramCache]: Analyzing trace with hash 893088082, now seen corresponding path program 25 times [2019-02-14 16:39:00,465 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:39:00,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:39:00,466 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:39:00,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:39:00,466 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:39:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:39:01,894 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 [2019-02-14 16:39:01,895 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 [2019-02-14 16:39:01,896 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 [2019-02-14 16:39:01,897 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 [2019-02-14 16:39:01,898 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 [2019-02-14 16:39:01,899 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 [2019-02-14 16:39:01,899 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 [2019-02-14 16:39:01,901 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 [2019-02-14 16:39:01,901 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 [2019-02-14 16:39:01,903 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 [2019-02-14 16:39:01,903 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 [2019-02-14 16:39:01,905 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 [2019-02-14 16:39:01,905 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 [2019-02-14 16:39:01,906 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 [2019-02-14 16:39:01,907 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 [2019-02-14 16:39:01,909 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 [2019-02-14 16:39:01,909 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 [2019-02-14 16:39:01,910 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 [2019-02-14 16:39:01,911 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 [2019-02-14 16:39:01,912 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 [2019-02-14 16:39:01,913 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 [2019-02-14 16:39:01,914 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 [2019-02-14 16:39:01,915 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 [2019-02-14 16:39:01,916 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 [2019-02-14 16:39:01,917 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 [2019-02-14 16:39:01,918 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 [2019-02-14 16:39:01,919 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 [2019-02-14 16:39:01,920 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 [2019-02-14 16:39:01,921 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 [2019-02-14 16:39:01,922 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 [2019-02-14 16:39:01,923 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 [2019-02-14 16:39:01,924 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 [2019-02-14 16:39:01,925 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 [2019-02-14 16:39:01,926 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 [2019-02-14 16:39:01,927 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 [2019-02-14 16:39:01,928 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 [2019-02-14 16:39:01,929 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 [2019-02-14 16:39:01,930 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 [2019-02-14 16:39:01,931 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 [2019-02-14 16:39:01,932 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 [2019-02-14 16:39:01,933 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 [2019-02-14 16:39:01,934 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 [2019-02-14 16:39:01,935 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 [2019-02-14 16:39:01,936 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 [2019-02-14 16:39:01,937 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 [2019-02-14 16:39:01,938 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 [2019-02-14 16:39:01,939 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 [2019-02-14 16:39:01,940 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 [2019-02-14 16:39:01,941 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 [2019-02-14 16:39:01,942 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 [2019-02-14 16:39:01,943 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 [2019-02-14 16:39:01,944 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 [2019-02-14 16:39:01,945 INFO L273 TraceCheckUtils]: 52: Hoare triple {8951#(and (<= main_i 104) (< 25 main_n))} assume !(i <= n * 4); {8923#false} is VALID [2019-02-14 16:39:01,958 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:39:01,959 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:39:01,959 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:39:01,959 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:39:01,959 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:39:01,959 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:39:01,959 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 [2019-02-14 16:39:01,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:39:01,968 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:39:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:39:01,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:39:02,000 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:39:02,019 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 [2019-02-14 16:39:02,021 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:39:02,030 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:39:02,030 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:39:02,031 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:39:02,031 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_29]. (and (= (store v_main_a_29 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:39:02,032 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:39:03,263 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 [2019-02-14 16:39:03,267 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:39:03,271 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:39:03,271 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:39:03,274 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:39:03,274 WARN L398 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))) [2019-02-14 16:39:03,274 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 104) (not (= 100 .cse0)) (<= 100 .cse0))) [2019-02-14 16:39:03,310 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 [2019-02-14 16:39:03,310 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 [2019-02-14 16:39:03,311 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 [2019-02-14 16:39:03,311 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 [2019-02-14 16:39:03,312 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 [2019-02-14 16:39:03,312 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 [2019-02-14 16:39:03,312 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 [2019-02-14 16:39:03,313 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 [2019-02-14 16:39:03,313 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 [2019-02-14 16:39:03,314 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 [2019-02-14 16:39:03,315 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 [2019-02-14 16:39:03,316 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 [2019-02-14 16:39:03,316 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 [2019-02-14 16:39:03,317 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 [2019-02-14 16:39:03,318 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 [2019-02-14 16:39:03,318 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 [2019-02-14 16:39:03,319 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 [2019-02-14 16:39:03,320 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 [2019-02-14 16:39:03,320 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 [2019-02-14 16:39:03,321 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 [2019-02-14 16:39:03,322 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 [2019-02-14 16:39:03,322 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 [2019-02-14 16:39:03,323 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 [2019-02-14 16:39:03,324 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 [2019-02-14 16:39:03,324 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 [2019-02-14 16:39:03,325 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 [2019-02-14 16:39:03,326 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 [2019-02-14 16:39:03,327 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 [2019-02-14 16:39:03,327 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 [2019-02-14 16:39:03,328 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 [2019-02-14 16:39:03,329 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 [2019-02-14 16:39:03,329 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 [2019-02-14 16:39:03,330 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 [2019-02-14 16:39:03,331 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 [2019-02-14 16:39:03,331 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 [2019-02-14 16:39:03,332 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 [2019-02-14 16:39:03,333 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 [2019-02-14 16:39:03,333 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 [2019-02-14 16:39:03,334 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 [2019-02-14 16:39:03,335 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 [2019-02-14 16:39:03,335 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 [2019-02-14 16:39:03,336 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 [2019-02-14 16:39:03,337 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 [2019-02-14 16:39:03,338 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 [2019-02-14 16:39:03,338 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 [2019-02-14 16:39:03,339 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 [2019-02-14 16:39:03,340 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 [2019-02-14 16:39:03,340 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 [2019-02-14 16:39:03,341 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 [2019-02-14 16:39:03,342 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 [2019-02-14 16:39:03,343 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 [2019-02-14 16:39:03,343 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 [2019-02-14 16:39:03,344 INFO L273 TraceCheckUtils]: 52: Hoare triple {8951#(and (<= main_i 104) (< 25 main_n))} assume !(i <= n * 4); {8923#false} is VALID [2019-02-14 16:39:03,352 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:39:03,353 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:39:05,667 INFO L273 TraceCheckUtils]: 52: Hoare triple {9138#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {8923#false} is VALID [2019-02-14 16:39:05,667 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 [2019-02-14 16:39:05,669 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 [2019-02-14 16:39:05,670 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 [2019-02-14 16:39:05,671 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 [2019-02-14 16:39:05,672 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 [2019-02-14 16:39:05,673 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 [2019-02-14 16:39:05,674 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 [2019-02-14 16:39:05,675 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 [2019-02-14 16:39:05,676 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 [2019-02-14 16:39:05,677 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 [2019-02-14 16:39:05,678 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 [2019-02-14 16:39:05,679 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 [2019-02-14 16:39:05,680 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 [2019-02-14 16:39:05,681 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 [2019-02-14 16:39:05,682 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 [2019-02-14 16:39:05,683 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 [2019-02-14 16:39:05,684 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 [2019-02-14 16:39:05,685 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 [2019-02-14 16:39:05,686 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 [2019-02-14 16:39:05,687 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 [2019-02-14 16:39:05,688 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 [2019-02-14 16:39:05,689 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 [2019-02-14 16:39:05,690 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 [2019-02-14 16:39:05,691 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 [2019-02-14 16:39:05,693 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 [2019-02-14 16:39:05,693 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 [2019-02-14 16:39:05,695 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 [2019-02-14 16:39:05,695 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 [2019-02-14 16:39:05,697 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 [2019-02-14 16:39:05,697 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 [2019-02-14 16:39:05,699 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 [2019-02-14 16:39:05,699 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 [2019-02-14 16:39:05,701 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 [2019-02-14 16:39:05,701 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 [2019-02-14 16:39:05,703 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 [2019-02-14 16:39:05,703 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 [2019-02-14 16:39:05,705 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 [2019-02-14 16:39:05,705 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 [2019-02-14 16:39:05,707 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 [2019-02-14 16:39:05,707 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 [2019-02-14 16:39:05,709 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 [2019-02-14 16:39:05,709 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 [2019-02-14 16:39:05,711 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 [2019-02-14 16:39:05,711 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 [2019-02-14 16:39:05,713 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 [2019-02-14 16:39:05,713 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 [2019-02-14 16:39:05,716 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 [2019-02-14 16:39:05,716 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 [2019-02-14 16:39:05,718 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 [2019-02-14 16:39:05,718 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 [2019-02-14 16:39:05,720 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 [2019-02-14 16:39:05,720 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 [2019-02-14 16:39:05,731 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:39:05,750 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:39:05,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 83 [2019-02-14 16:39:05,751 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:39:05,751 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 53 [2019-02-14 16:39:05,751 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:39:05,751 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 57 states. [2019-02-14 16:39:05,879 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 105 edges. 105 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:39:05,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 57 states [2019-02-14 16:39:05,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2019-02-14 16:39:05,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=932, Invalid=6208, Unknown=0, NotChecked=0, Total=7140 [2019-02-14 16:39:05,881 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 57 states. [2019-02-14 16:39:11,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:39:11,405 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2019-02-14 16:39:11,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-02-14 16:39:11,406 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 53 [2019-02-14 16:39:11,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:39:11,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-02-14 16:39:11,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 58 transitions. [2019-02-14 16:39:11,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-02-14 16:39:11,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 58 transitions. [2019-02-14 16:39:11,408 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 30 states and 58 transitions. [2019-02-14 16:39:11,468 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 58 edges. 58 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:39:11,469 INFO L225 Difference]: With dead ends: 58 [2019-02-14 16:39:11,469 INFO L226 Difference]: Without dead ends: 57 [2019-02-14 16:39:11,470 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1620 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=932, Invalid=6208, Unknown=0, NotChecked=0, Total=7140 [2019-02-14 16:39:11,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-02-14 16:39:11,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2019-02-14 16:39:11,520 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:39:11,521 INFO L82 GeneralOperation]: Start isEquivalent. First operand 57 states. Second operand 56 states. [2019-02-14 16:39:11,521 INFO L74 IsIncluded]: Start isIncluded. First operand 57 states. Second operand 56 states. [2019-02-14 16:39:11,521 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 56 states. [2019-02-14 16:39:11,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:39:11,522 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2019-02-14 16:39:11,522 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2019-02-14 16:39:11,523 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:39:11,523 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:39:11,523 INFO L74 IsIncluded]: Start isIncluded. First operand 56 states. Second operand 57 states. [2019-02-14 16:39:11,523 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 57 states. [2019-02-14 16:39:11,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:39:11,524 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2019-02-14 16:39:11,524 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2019-02-14 16:39:11,524 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:39:11,524 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:39:11,524 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:39:11,524 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:39:11,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-02-14 16:39:11,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2019-02-14 16:39:11,525 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 53 [2019-02-14 16:39:11,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:39:11,525 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2019-02-14 16:39:11,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 57 states. [2019-02-14 16:39:11,525 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2019-02-14 16:39:11,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-02-14 16:39:11,526 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:39:11,526 INFO L402 BasicCegarLoop]: trace histogram [27, 26, 1, 1] [2019-02-14 16:39:11,526 INFO L423 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:39:11,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:39:11,526 INFO L82 PathProgramCache]: Analyzing trace with hash -735811308, now seen corresponding path program 26 times [2019-02-14 16:39:11,526 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:39:11,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:39:11,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:39:11,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:39:11,527 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:39:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:39:12,906 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 [2019-02-14 16:39:12,907 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 [2019-02-14 16:39:12,908 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 [2019-02-14 16:39:12,909 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 [2019-02-14 16:39:12,910 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 [2019-02-14 16:39:12,911 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 [2019-02-14 16:39:12,912 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 [2019-02-14 16:39:12,913 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 [2019-02-14 16:39:12,914 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 [2019-02-14 16:39:12,915 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 [2019-02-14 16:39:12,916 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 [2019-02-14 16:39:12,917 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 [2019-02-14 16:39:12,917 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 [2019-02-14 16:39:12,918 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 [2019-02-14 16:39:12,919 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 [2019-02-14 16:39:12,920 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 [2019-02-14 16:39:12,921 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 [2019-02-14 16:39:12,922 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 [2019-02-14 16:39:12,923 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 [2019-02-14 16:39:12,924 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 [2019-02-14 16:39:12,925 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 [2019-02-14 16:39:12,926 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 [2019-02-14 16:39:12,927 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 [2019-02-14 16:39:12,928 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 [2019-02-14 16:39:12,928 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 [2019-02-14 16:39:12,929 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 [2019-02-14 16:39:12,930 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 [2019-02-14 16:39:12,931 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 [2019-02-14 16:39:12,932 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 [2019-02-14 16:39:12,933 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 [2019-02-14 16:39:12,934 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 [2019-02-14 16:39:12,935 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 [2019-02-14 16:39:12,936 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 [2019-02-14 16:39:12,937 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 [2019-02-14 16:39:12,937 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 [2019-02-14 16:39:12,938 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 [2019-02-14 16:39:12,939 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 [2019-02-14 16:39:12,940 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 [2019-02-14 16:39:12,941 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 [2019-02-14 16:39:12,942 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 [2019-02-14 16:39:12,943 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 [2019-02-14 16:39:12,944 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 [2019-02-14 16:39:12,945 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 [2019-02-14 16:39:12,946 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 [2019-02-14 16:39:12,946 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 [2019-02-14 16:39:12,948 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 [2019-02-14 16:39:12,948 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 [2019-02-14 16:39:12,949 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 [2019-02-14 16:39:12,950 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 [2019-02-14 16:39:12,951 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 [2019-02-14 16:39:12,952 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 [2019-02-14 16:39:12,953 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 [2019-02-14 16:39:12,954 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 [2019-02-14 16:39:12,955 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 [2019-02-14 16:39:12,956 INFO L273 TraceCheckUtils]: 54: Hoare triple {9634#(and (< 26 main_n) (<= main_i 108))} assume !(i <= n * 4); {9605#false} is VALID [2019-02-14 16:39:12,971 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:39:12,972 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:39:12,972 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:39:12,972 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:39:12,972 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:39:12,972 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:39:12,972 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 [2019-02-14 16:39:12,981 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:39:12,981 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:39:13,016 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2019-02-14 16:39:13,016 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:39:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:39:13,028 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:39:13,046 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 [2019-02-14 16:39:13,047 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:39:13,056 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:39:13,056 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:39:13,058 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:39:13,058 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_30]. (and (= (store v_main_a_30 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:39:13,058 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:39:14,382 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 [2019-02-14 16:39:14,385 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:39:14,390 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:39:14,391 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:39:14,393 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:39:14,393 WARN L398 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))) [2019-02-14 16:39:14,393 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 104 .cse0) (not (= 104 .cse0)) (<= main_i 108))) [2019-02-14 16:39:14,429 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 [2019-02-14 16:39:14,429 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 [2019-02-14 16:39:14,430 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 [2019-02-14 16:39:14,430 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 [2019-02-14 16:39:14,431 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 [2019-02-14 16:39:14,431 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 [2019-02-14 16:39:14,431 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 [2019-02-14 16:39:14,432 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 [2019-02-14 16:39:14,432 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 [2019-02-14 16:39:14,433 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 [2019-02-14 16:39:14,434 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 [2019-02-14 16:39:14,434 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 [2019-02-14 16:39:14,435 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 [2019-02-14 16:39:14,436 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 [2019-02-14 16:39:14,437 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 [2019-02-14 16:39:14,437 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 [2019-02-14 16:39:14,438 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 [2019-02-14 16:39:14,439 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 [2019-02-14 16:39:14,439 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 [2019-02-14 16:39:14,440 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 [2019-02-14 16:39:14,441 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 [2019-02-14 16:39:14,441 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 [2019-02-14 16:39:14,442 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 [2019-02-14 16:39:14,443 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 [2019-02-14 16:39:14,443 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 [2019-02-14 16:39:14,444 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 [2019-02-14 16:39:14,445 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 [2019-02-14 16:39:14,445 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 [2019-02-14 16:39:14,446 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 [2019-02-14 16:39:14,447 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 [2019-02-14 16:39:14,448 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 [2019-02-14 16:39:14,448 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 [2019-02-14 16:39:14,449 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 [2019-02-14 16:39:14,450 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 [2019-02-14 16:39:14,450 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 [2019-02-14 16:39:14,451 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 [2019-02-14 16:39:14,452 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 [2019-02-14 16:39:14,452 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 [2019-02-14 16:39:14,453 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 [2019-02-14 16:39:14,454 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 [2019-02-14 16:39:14,454 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 [2019-02-14 16:39:14,455 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 [2019-02-14 16:39:14,456 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 [2019-02-14 16:39:14,457 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 [2019-02-14 16:39:14,457 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 [2019-02-14 16:39:14,458 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 [2019-02-14 16:39:14,459 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 [2019-02-14 16:39:14,459 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 [2019-02-14 16:39:14,460 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 [2019-02-14 16:39:14,461 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 [2019-02-14 16:39:14,461 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 [2019-02-14 16:39:14,462 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 [2019-02-14 16:39:14,463 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 [2019-02-14 16:39:14,464 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 [2019-02-14 16:39:14,464 INFO L273 TraceCheckUtils]: 54: Hoare triple {9634#(and (< 26 main_n) (<= main_i 108))} assume !(i <= n * 4); {9605#false} is VALID [2019-02-14 16:39:14,473 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:39:14,473 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:39:16,993 INFO L273 TraceCheckUtils]: 54: Hoare triple {9828#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {9605#false} is VALID [2019-02-14 16:39:16,994 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 [2019-02-14 16:39:16,995 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 [2019-02-14 16:39:16,996 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 [2019-02-14 16:39:16,996 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 [2019-02-14 16:39:16,997 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 [2019-02-14 16:39:16,998 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 [2019-02-14 16:39:16,999 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 [2019-02-14 16:39:16,999 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 [2019-02-14 16:39:17,001 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 [2019-02-14 16:39:17,001 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 [2019-02-14 16:39:17,002 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 [2019-02-14 16:39:17,003 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 [2019-02-14 16:39:17,004 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 [2019-02-14 16:39:17,004 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 [2019-02-14 16:39:17,005 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 [2019-02-14 16:39:17,006 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 [2019-02-14 16:39:17,007 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 [2019-02-14 16:39:17,007 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 [2019-02-14 16:39:17,008 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 [2019-02-14 16:39:17,009 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 [2019-02-14 16:39:17,010 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 [2019-02-14 16:39:17,011 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 [2019-02-14 16:39:17,012 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 [2019-02-14 16:39:17,012 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 [2019-02-14 16:39:17,013 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 [2019-02-14 16:39:17,014 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 [2019-02-14 16:39:17,015 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 [2019-02-14 16:39:17,015 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 [2019-02-14 16:39:17,016 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 [2019-02-14 16:39:17,017 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 [2019-02-14 16:39:17,018 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 [2019-02-14 16:39:17,019 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 [2019-02-14 16:39:17,020 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 [2019-02-14 16:39:17,020 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 [2019-02-14 16:39:17,021 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 [2019-02-14 16:39:17,022 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 [2019-02-14 16:39:17,023 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 [2019-02-14 16:39:17,023 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 [2019-02-14 16:39:17,024 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 [2019-02-14 16:39:17,025 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 [2019-02-14 16:39:17,026 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 [2019-02-14 16:39:17,027 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 [2019-02-14 16:39:17,028 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 [2019-02-14 16:39:17,028 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 [2019-02-14 16:39:17,029 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 [2019-02-14 16:39:17,030 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 [2019-02-14 16:39:17,031 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 [2019-02-14 16:39:17,031 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 [2019-02-14 16:39:17,032 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 [2019-02-14 16:39:17,033 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 [2019-02-14 16:39:17,034 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 [2019-02-14 16:39:17,035 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 [2019-02-14 16:39:17,036 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 [2019-02-14 16:39:17,037 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 [2019-02-14 16:39:17,049 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:39:17,068 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:39:17,069 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 86 [2019-02-14 16:39:17,069 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:39:17,069 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 55 [2019-02-14 16:39:17,069 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:39:17,069 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 59 states. [2019-02-14 16:39:17,196 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 109 edges. 109 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:39:17,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 59 states [2019-02-14 16:39:17,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2019-02-14 16:39:17,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=994, Invalid=6662, Unknown=0, NotChecked=0, Total=7656 [2019-02-14 16:39:17,198 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand 59 states. [2019-02-14 16:39:21,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:39:21,132 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2019-02-14 16:39:21,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-02-14 16:39:21,132 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 55 [2019-02-14 16:39:21,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:39:21,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-02-14 16:39:21,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 60 transitions. [2019-02-14 16:39:21,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-02-14 16:39:21,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 60 transitions. [2019-02-14 16:39:21,134 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 31 states and 60 transitions. [2019-02-14 16:39:21,196 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 60 edges. 60 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:39:21,197 INFO L225 Difference]: With dead ends: 60 [2019-02-14 16:39:21,198 INFO L226 Difference]: Without dead ends: 59 [2019-02-14 16:39:21,198 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1736 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=994, Invalid=6662, Unknown=0, NotChecked=0, Total=7656 [2019-02-14 16:39:21,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-02-14 16:39:21,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2019-02-14 16:39:21,255 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:39:21,255 INFO L82 GeneralOperation]: Start isEquivalent. First operand 59 states. Second operand 58 states. [2019-02-14 16:39:21,255 INFO L74 IsIncluded]: Start isIncluded. First operand 59 states. Second operand 58 states. [2019-02-14 16:39:21,255 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 58 states. [2019-02-14 16:39:21,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:39:21,256 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2019-02-14 16:39:21,256 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2019-02-14 16:39:21,257 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:39:21,257 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:39:21,257 INFO L74 IsIncluded]: Start isIncluded. First operand 58 states. Second operand 59 states. [2019-02-14 16:39:21,257 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 59 states. [2019-02-14 16:39:21,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:39:21,258 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2019-02-14 16:39:21,258 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2019-02-14 16:39:21,258 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:39:21,258 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:39:21,258 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:39:21,258 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:39:21,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-02-14 16:39:21,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2019-02-14 16:39:21,259 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 55 [2019-02-14 16:39:21,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:39:21,260 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2019-02-14 16:39:21,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has 59 states. [2019-02-14 16:39:21,260 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2019-02-14 16:39:21,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-02-14 16:39:21,260 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:39:21,261 INFO L402 BasicCegarLoop]: trace histogram [28, 27, 1, 1] [2019-02-14 16:39:21,261 INFO L423 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:39:21,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:39:21,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1554937942, now seen corresponding path program 27 times [2019-02-14 16:39:21,261 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:39:21,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:39:21,262 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:39:21,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:39:21,262 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:39:21,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:39:22,589 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 [2019-02-14 16:39:22,590 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 [2019-02-14 16:39:22,591 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 [2019-02-14 16:39:22,592 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 [2019-02-14 16:39:22,593 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 [2019-02-14 16:39:22,594 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 [2019-02-14 16:39:22,594 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 [2019-02-14 16:39:22,595 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 [2019-02-14 16:39:22,596 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 [2019-02-14 16:39:22,597 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 [2019-02-14 16:39:22,598 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 [2019-02-14 16:39:22,599 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 [2019-02-14 16:39:22,600 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 [2019-02-14 16:39:22,601 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 [2019-02-14 16:39:22,602 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 [2019-02-14 16:39:22,603 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 [2019-02-14 16:39:22,603 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 [2019-02-14 16:39:22,605 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 [2019-02-14 16:39:22,605 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 [2019-02-14 16:39:22,606 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 [2019-02-14 16:39:22,607 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 [2019-02-14 16:39:22,608 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 [2019-02-14 16:39:22,609 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 [2019-02-14 16:39:22,610 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 [2019-02-14 16:39:22,611 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 [2019-02-14 16:39:22,612 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 [2019-02-14 16:39:22,613 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 [2019-02-14 16:39:22,614 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 [2019-02-14 16:39:22,614 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 [2019-02-14 16:39:22,615 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 [2019-02-14 16:39:22,616 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 [2019-02-14 16:39:22,617 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 [2019-02-14 16:39:22,618 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 [2019-02-14 16:39:22,619 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 [2019-02-14 16:39:22,620 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 [2019-02-14 16:39:22,621 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 [2019-02-14 16:39:22,622 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 [2019-02-14 16:39:22,623 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 [2019-02-14 16:39:22,623 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 [2019-02-14 16:39:22,624 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 [2019-02-14 16:39:22,625 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 [2019-02-14 16:39:22,626 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 [2019-02-14 16:39:22,627 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 [2019-02-14 16:39:22,628 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 [2019-02-14 16:39:22,629 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 [2019-02-14 16:39:22,630 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 [2019-02-14 16:39:22,631 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 [2019-02-14 16:39:22,632 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 [2019-02-14 16:39:22,632 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 [2019-02-14 16:39:22,633 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 [2019-02-14 16:39:22,634 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 [2019-02-14 16:39:22,635 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 [2019-02-14 16:39:22,636 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 [2019-02-14 16:39:22,637 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 [2019-02-14 16:39:22,638 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 [2019-02-14 16:39:22,639 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 [2019-02-14 16:39:22,640 INFO L273 TraceCheckUtils]: 56: Hoare triple {10342#(and (< 27 main_n) (<= main_i 112))} assume !(i <= n * 4); {10312#false} is VALID [2019-02-14 16:39:22,656 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:39:22,657 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:39:22,657 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:39:22,657 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:39:22,657 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:39:22,657 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:39:22,657 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 [2019-02-14 16:39:22,666 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:39:22,667 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:39:22,684 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:39:22,684 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:39:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:39:22,697 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:39:22,705 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 [2019-02-14 16:39:22,706 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:39:22,711 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:39:22,711 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:39:22,713 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:39:22,714 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_31]. (and (= (store v_main_a_31 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:39:22,714 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:39:24,136 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 [2019-02-14 16:39:24,137 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:39:24,143 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:39:24,143 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:39:24,145 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:39:24,146 WARN L398 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))) [2019-02-14 16:39:24,146 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 108 .cse0)) (<= 108 .cse0) (<= main_i 112))) [2019-02-14 16:39:24,184 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 [2019-02-14 16:39:24,184 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 [2019-02-14 16:39:24,185 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 [2019-02-14 16:39:24,185 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 [2019-02-14 16:39:24,185 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 [2019-02-14 16:39:24,186 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 [2019-02-14 16:39:24,187 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 [2019-02-14 16:39:24,188 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 [2019-02-14 16:39:24,188 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 [2019-02-14 16:39:24,189 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 [2019-02-14 16:39:24,190 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 [2019-02-14 16:39:24,190 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 [2019-02-14 16:39:24,191 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 [2019-02-14 16:39:24,192 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 [2019-02-14 16:39:24,192 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 [2019-02-14 16:39:24,193 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 [2019-02-14 16:39:24,194 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 [2019-02-14 16:39:24,194 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 [2019-02-14 16:39:24,195 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 [2019-02-14 16:39:24,196 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 [2019-02-14 16:39:24,196 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 [2019-02-14 16:39:24,197 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 [2019-02-14 16:39:24,198 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 [2019-02-14 16:39:24,199 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 [2019-02-14 16:39:24,199 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 [2019-02-14 16:39:24,200 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 [2019-02-14 16:39:24,201 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 [2019-02-14 16:39:24,201 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 [2019-02-14 16:39:24,202 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 [2019-02-14 16:39:24,203 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 [2019-02-14 16:39:24,203 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 [2019-02-14 16:39:24,204 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 [2019-02-14 16:39:24,205 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 [2019-02-14 16:39:24,205 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 [2019-02-14 16:39:24,206 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 [2019-02-14 16:39:24,207 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 [2019-02-14 16:39:24,208 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 [2019-02-14 16:39:24,208 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 [2019-02-14 16:39:24,209 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 [2019-02-14 16:39:24,210 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 [2019-02-14 16:39:24,210 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 [2019-02-14 16:39:24,211 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 [2019-02-14 16:39:24,212 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 [2019-02-14 16:39:24,213 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 [2019-02-14 16:39:24,213 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 [2019-02-14 16:39:24,214 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 [2019-02-14 16:39:24,215 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 [2019-02-14 16:39:24,216 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 [2019-02-14 16:39:24,216 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 [2019-02-14 16:39:24,217 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 [2019-02-14 16:39:24,218 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 [2019-02-14 16:39:24,219 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 [2019-02-14 16:39:24,228 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 [2019-02-14 16:39:24,229 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 [2019-02-14 16:39:24,229 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 [2019-02-14 16:39:24,230 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 [2019-02-14 16:39:24,230 INFO L273 TraceCheckUtils]: 56: Hoare triple {10342#(and (< 27 main_n) (<= main_i 112))} assume !(i <= n * 4); {10312#false} is VALID [2019-02-14 16:39:24,238 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:39:24,238 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:39:26,923 INFO L273 TraceCheckUtils]: 56: Hoare triple {10543#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {10312#false} is VALID [2019-02-14 16:39:26,925 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 [2019-02-14 16:39:26,925 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 [2019-02-14 16:39:26,926 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 [2019-02-14 16:39:26,926 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 [2019-02-14 16:39:26,927 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 [2019-02-14 16:39:26,927 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 [2019-02-14 16:39:26,928 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 [2019-02-14 16:39:26,929 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 [2019-02-14 16:39:26,930 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 [2019-02-14 16:39:26,931 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 [2019-02-14 16:39:26,932 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 [2019-02-14 16:39:26,932 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 [2019-02-14 16:39:26,933 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 [2019-02-14 16:39:26,934 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 [2019-02-14 16:39:26,935 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 [2019-02-14 16:39:26,935 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 [2019-02-14 16:39:26,936 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 [2019-02-14 16:39:26,937 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 [2019-02-14 16:39:26,938 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 [2019-02-14 16:39:26,938 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 [2019-02-14 16:39:26,940 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 [2019-02-14 16:39:26,947 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 [2019-02-14 16:39:26,948 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 [2019-02-14 16:39:26,949 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 [2019-02-14 16:39:26,949 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 [2019-02-14 16:39:26,950 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 [2019-02-14 16:39:26,950 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 [2019-02-14 16:39:26,951 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 [2019-02-14 16:39:26,952 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 [2019-02-14 16:39:26,952 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 [2019-02-14 16:39:26,953 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 [2019-02-14 16:39:26,954 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 [2019-02-14 16:39:26,955 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 [2019-02-14 16:39:26,955 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 [2019-02-14 16:39:26,956 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 [2019-02-14 16:39:26,957 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 [2019-02-14 16:39:26,958 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 [2019-02-14 16:39:26,959 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 [2019-02-14 16:39:26,960 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 [2019-02-14 16:39:26,960 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 [2019-02-14 16:39:26,961 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 [2019-02-14 16:39:26,962 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 [2019-02-14 16:39:26,963 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 [2019-02-14 16:39:26,963 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 [2019-02-14 16:39:26,964 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 [2019-02-14 16:39:26,965 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 [2019-02-14 16:39:26,966 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 [2019-02-14 16:39:26,967 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 [2019-02-14 16:39:26,968 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 [2019-02-14 16:39:26,968 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 [2019-02-14 16:39:26,969 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 [2019-02-14 16:39:26,970 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 [2019-02-14 16:39:26,971 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 [2019-02-14 16:39:26,971 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 [2019-02-14 16:39:26,972 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 [2019-02-14 16:39:26,973 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 [2019-02-14 16:39:26,987 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:39:27,006 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:39:27,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 30] total 89 [2019-02-14 16:39:27,006 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:39:27,007 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 57 [2019-02-14 16:39:27,007 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:39:27,007 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 61 states. [2019-02-14 16:39:27,138 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 113 edges. 113 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:39:27,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 61 states [2019-02-14 16:39:27,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2019-02-14 16:39:27,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1058, Invalid=7132, Unknown=0, NotChecked=0, Total=8190 [2019-02-14 16:39:27,139 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 61 states. [2019-02-14 16:39:33,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:39:33,098 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2019-02-14 16:39:33,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-02-14 16:39:33,098 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 57 [2019-02-14 16:39:33,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:39:33,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-02-14 16:39:33,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 62 transitions. [2019-02-14 16:39:33,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-02-14 16:39:33,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 62 transitions. [2019-02-14 16:39:33,101 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 32 states and 62 transitions. [2019-02-14 16:39:33,167 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 62 edges. 62 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:39:33,168 INFO L225 Difference]: With dead ends: 62 [2019-02-14 16:39:33,169 INFO L226 Difference]: Without dead ends: 61 [2019-02-14 16:39:33,169 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1856 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1058, Invalid=7132, Unknown=0, NotChecked=0, Total=8190 [2019-02-14 16:39:33,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-02-14 16:39:33,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2019-02-14 16:39:33,241 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:39:33,241 INFO L82 GeneralOperation]: Start isEquivalent. First operand 61 states. Second operand 60 states. [2019-02-14 16:39:33,241 INFO L74 IsIncluded]: Start isIncluded. First operand 61 states. Second operand 60 states. [2019-02-14 16:39:33,241 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 60 states. [2019-02-14 16:39:33,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:39:33,243 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2019-02-14 16:39:33,243 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2019-02-14 16:39:33,243 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:39:33,243 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:39:33,244 INFO L74 IsIncluded]: Start isIncluded. First operand 60 states. Second operand 61 states. [2019-02-14 16:39:33,244 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 61 states. [2019-02-14 16:39:33,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:39:33,245 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2019-02-14 16:39:33,245 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2019-02-14 16:39:33,245 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:39:33,245 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:39:33,245 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:39:33,245 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:39:33,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-02-14 16:39:33,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2019-02-14 16:39:33,246 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 57 [2019-02-14 16:39:33,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:39:33,247 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2019-02-14 16:39:33,247 INFO L481 AbstractCegarLoop]: Interpolant automaton has 61 states. [2019-02-14 16:39:33,247 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2019-02-14 16:39:33,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-02-14 16:39:33,248 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:39:33,248 INFO L402 BasicCegarLoop]: trace histogram [29, 28, 1, 1] [2019-02-14 16:39:33,248 INFO L423 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:39:33,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:39:33,248 INFO L82 PathProgramCache]: Analyzing trace with hash -353255656, now seen corresponding path program 28 times [2019-02-14 16:39:33,248 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:39:33,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:39:33,249 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:39:33,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:39:33,249 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:39:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:39:34,679 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 [2019-02-14 16:39:34,680 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 [2019-02-14 16:39:34,681 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 [2019-02-14 16:39:34,682 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 [2019-02-14 16:39:34,683 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 [2019-02-14 16:39:34,684 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 [2019-02-14 16:39:34,684 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 [2019-02-14 16:39:34,685 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 [2019-02-14 16:39:34,686 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 [2019-02-14 16:39:34,687 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 [2019-02-14 16:39:34,688 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 [2019-02-14 16:39:34,689 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 [2019-02-14 16:39:34,690 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 [2019-02-14 16:39:34,691 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 [2019-02-14 16:39:34,692 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 [2019-02-14 16:39:34,693 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 [2019-02-14 16:39:34,694 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 [2019-02-14 16:39:34,695 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 [2019-02-14 16:39:34,695 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 [2019-02-14 16:39:34,696 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 [2019-02-14 16:39:34,697 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 [2019-02-14 16:39:34,698 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 [2019-02-14 16:39:34,699 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 [2019-02-14 16:39:34,700 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 [2019-02-14 16:39:34,701 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 [2019-02-14 16:39:34,702 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 [2019-02-14 16:39:34,703 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 [2019-02-14 16:39:34,704 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 [2019-02-14 16:39:34,705 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 [2019-02-14 16:39:34,706 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 [2019-02-14 16:39:34,706 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 [2019-02-14 16:39:34,707 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 [2019-02-14 16:39:34,708 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 [2019-02-14 16:39:34,709 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 [2019-02-14 16:39:34,710 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 [2019-02-14 16:39:34,711 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 [2019-02-14 16:39:34,712 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 [2019-02-14 16:39:34,713 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 [2019-02-14 16:39:34,714 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 [2019-02-14 16:39:34,715 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 [2019-02-14 16:39:34,715 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 [2019-02-14 16:39:34,716 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 [2019-02-14 16:39:34,717 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 [2019-02-14 16:39:34,718 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 [2019-02-14 16:39:34,719 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 [2019-02-14 16:39:34,720 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 [2019-02-14 16:39:34,721 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 [2019-02-14 16:39:34,722 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 [2019-02-14 16:39:34,723 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 [2019-02-14 16:39:34,724 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 [2019-02-14 16:39:34,725 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 [2019-02-14 16:39:34,726 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 [2019-02-14 16:39:34,726 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 [2019-02-14 16:39:34,727 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 [2019-02-14 16:39:34,731 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 [2019-02-14 16:39:34,732 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 [2019-02-14 16:39:34,733 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 [2019-02-14 16:39:34,734 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 [2019-02-14 16:39:34,735 INFO L273 TraceCheckUtils]: 58: Hoare triple {11075#(and (<= main_i 116) (<= 29 main_n))} assume !(i <= n * 4); {11044#false} is VALID [2019-02-14 16:39:34,751 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:39:34,751 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:39:34,751 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:39:34,751 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:39:34,751 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:39:34,751 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:39:34,751 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 [2019-02-14 16:39:34,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:39:34,761 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:39:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:39:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:39:34,787 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:39:34,808 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 [2019-02-14 16:39:34,810 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:39:34,817 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:39:34,818 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:39:34,819 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:39:34,819 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_32]. (and (= (store v_main_a_32 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:39:34,820 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:39:36,576 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 [2019-02-14 16:39:36,579 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:39:36,584 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:39:36,585 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:39:36,587 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:39:36,588 WARN L398 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)))) [2019-02-14 16:39:36,588 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 112 .cse0)) (<= 112 .cse0) (<= main_i 116))) [2019-02-14 16:39:36,625 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 [2019-02-14 16:39:36,626 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 [2019-02-14 16:39:36,626 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 [2019-02-14 16:39:36,627 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 [2019-02-14 16:39:36,627 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 [2019-02-14 16:39:36,628 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 [2019-02-14 16:39:36,629 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 [2019-02-14 16:39:36,630 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 [2019-02-14 16:39:36,630 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 [2019-02-14 16:39:36,631 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 [2019-02-14 16:39:36,632 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 [2019-02-14 16:39:36,635 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 [2019-02-14 16:39:36,636 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 [2019-02-14 16:39:36,637 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 [2019-02-14 16:39:36,637 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 [2019-02-14 16:39:36,637 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 [2019-02-14 16:39:36,638 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 [2019-02-14 16:39:36,638 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 [2019-02-14 16:39:36,639 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 [2019-02-14 16:39:36,639 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 [2019-02-14 16:39:36,640 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 [2019-02-14 16:39:36,640 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 [2019-02-14 16:39:36,641 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 [2019-02-14 16:39:36,641 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 [2019-02-14 16:39:36,642 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 [2019-02-14 16:39:36,643 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 [2019-02-14 16:39:36,643 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 [2019-02-14 16:39:36,644 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 [2019-02-14 16:39:36,645 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 [2019-02-14 16:39:36,645 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 [2019-02-14 16:39:36,646 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 [2019-02-14 16:39:36,655 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 [2019-02-14 16:39:36,656 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 [2019-02-14 16:39:36,657 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 [2019-02-14 16:39:36,657 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 [2019-02-14 16:39:36,657 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 [2019-02-14 16:39:36,658 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 [2019-02-14 16:39:36,658 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 [2019-02-14 16:39:36,659 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 [2019-02-14 16:39:36,660 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 [2019-02-14 16:39:36,660 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 [2019-02-14 16:39:36,661 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 [2019-02-14 16:39:36,662 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 [2019-02-14 16:39:36,663 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 [2019-02-14 16:39:36,682 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 [2019-02-14 16:39:36,682 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 [2019-02-14 16:39:36,683 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 [2019-02-14 16:39:36,683 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 [2019-02-14 16:39:36,684 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 [2019-02-14 16:39:36,684 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 [2019-02-14 16:39:36,685 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 [2019-02-14 16:39:36,685 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 [2019-02-14 16:39:36,686 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 [2019-02-14 16:39:36,686 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 [2019-02-14 16:39:36,687 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 [2019-02-14 16:39:36,688 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 [2019-02-14 16:39:36,690 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 [2019-02-14 16:39:36,691 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 [2019-02-14 16:39:36,691 INFO L273 TraceCheckUtils]: 58: Hoare triple {11075#(and (<= main_i 116) (<= 29 main_n))} assume !(i <= n * 4); {11044#false} is VALID [2019-02-14 16:39:36,702 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:39:36,702 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:39:39,285 INFO L273 TraceCheckUtils]: 58: Hoare triple {11283#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {11044#false} is VALID [2019-02-14 16:39:39,286 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 [2019-02-14 16:39:39,286 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 [2019-02-14 16:39:39,287 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 [2019-02-14 16:39:39,288 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 [2019-02-14 16:39:39,288 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 [2019-02-14 16:39:39,289 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 [2019-02-14 16:39:39,290 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 [2019-02-14 16:39:39,290 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 [2019-02-14 16:39:39,291 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 [2019-02-14 16:39:39,303 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 [2019-02-14 16:39:39,304 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 [2019-02-14 16:39:39,304 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 [2019-02-14 16:39:39,305 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 [2019-02-14 16:39:39,305 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 [2019-02-14 16:39:39,306 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 [2019-02-14 16:39:39,306 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 [2019-02-14 16:39:39,307 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 [2019-02-14 16:39:39,308 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 [2019-02-14 16:39:39,309 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 [2019-02-14 16:39:39,309 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 [2019-02-14 16:39:39,310 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 [2019-02-14 16:39:39,311 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 [2019-02-14 16:39:39,312 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 [2019-02-14 16:39:39,313 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 [2019-02-14 16:39:39,314 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 [2019-02-14 16:39:39,314 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 [2019-02-14 16:39:39,315 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 [2019-02-14 16:39:39,316 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 [2019-02-14 16:39:39,317 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 [2019-02-14 16:39:39,318 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 [2019-02-14 16:39:39,319 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 [2019-02-14 16:39:39,319 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 [2019-02-14 16:39:39,320 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 [2019-02-14 16:39:39,321 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 [2019-02-14 16:39:39,322 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 [2019-02-14 16:39:39,322 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 [2019-02-14 16:39:39,323 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 [2019-02-14 16:39:39,324 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 [2019-02-14 16:39:39,325 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 [2019-02-14 16:39:39,326 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 [2019-02-14 16:39:39,327 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 [2019-02-14 16:39:39,327 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 [2019-02-14 16:39:39,328 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 [2019-02-14 16:39:39,329 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 [2019-02-14 16:39:39,330 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 [2019-02-14 16:39:39,331 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 [2019-02-14 16:39:39,332 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 [2019-02-14 16:39:39,332 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 [2019-02-14 16:39:39,333 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 [2019-02-14 16:39:39,334 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 [2019-02-14 16:39:39,335 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 [2019-02-14 16:39:39,336 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 [2019-02-14 16:39:39,337 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 [2019-02-14 16:39:39,337 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 [2019-02-14 16:39:39,338 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 [2019-02-14 16:39:39,341 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 [2019-02-14 16:39:39,342 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 [2019-02-14 16:39:39,343 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 [2019-02-14 16:39:39,356 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:39:39,375 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:39:39,375 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 92 [2019-02-14 16:39:39,375 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:39:39,376 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 59 [2019-02-14 16:39:39,376 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:39:39,376 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 63 states. [2019-02-14 16:39:39,511 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 117 edges. 117 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:39:39,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 63 states [2019-02-14 16:39:39,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2019-02-14 16:39:39,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1124, Invalid=7618, Unknown=0, NotChecked=0, Total=8742 [2019-02-14 16:39:39,512 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand 63 states. [2019-02-14 16:39:44,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:39:44,843 INFO L93 Difference]: Finished difference Result 64 states and 64 transitions. [2019-02-14 16:39:44,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-02-14 16:39:44,844 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 59 [2019-02-14 16:39:44,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:39:44,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-02-14 16:39:44,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 64 transitions. [2019-02-14 16:39:44,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-02-14 16:39:44,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 64 transitions. [2019-02-14 16:39:44,846 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 33 states and 64 transitions. [2019-02-14 16:39:44,914 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 64 edges. 64 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:39:44,916 INFO L225 Difference]: With dead ends: 64 [2019-02-14 16:39:44,916 INFO L226 Difference]: Without dead ends: 63 [2019-02-14 16:39:44,917 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1980 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=1124, Invalid=7618, Unknown=0, NotChecked=0, Total=8742 [2019-02-14 16:39:44,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-02-14 16:39:44,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2019-02-14 16:39:44,982 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:39:44,982 INFO L82 GeneralOperation]: Start isEquivalent. First operand 63 states. Second operand 62 states. [2019-02-14 16:39:44,982 INFO L74 IsIncluded]: Start isIncluded. First operand 63 states. Second operand 62 states. [2019-02-14 16:39:44,983 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 62 states. [2019-02-14 16:39:44,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:39:44,984 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2019-02-14 16:39:44,984 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2019-02-14 16:39:44,984 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:39:44,984 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:39:44,984 INFO L74 IsIncluded]: Start isIncluded. First operand 62 states. Second operand 63 states. [2019-02-14 16:39:44,984 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 63 states. [2019-02-14 16:39:44,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:39:44,985 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2019-02-14 16:39:44,986 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2019-02-14 16:39:44,986 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:39:44,986 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:39:44,986 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:39:44,986 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:39:44,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-02-14 16:39:44,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2019-02-14 16:39:44,987 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 59 [2019-02-14 16:39:44,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:39:44,988 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2019-02-14 16:39:44,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has 63 states. [2019-02-14 16:39:44,988 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2019-02-14 16:39:44,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-02-14 16:39:44,988 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:39:44,989 INFO L402 BasicCegarLoop]: trace histogram [30, 29, 1, 1] [2019-02-14 16:39:44,989 INFO L423 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:39:44,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:39:44,989 INFO L82 PathProgramCache]: Analyzing trace with hash -176267942, now seen corresponding path program 29 times [2019-02-14 16:39:44,989 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:39:44,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:39:44,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:39:44,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:39:44,990 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:39:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:39:46,648 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 [2019-02-14 16:39:46,650 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 [2019-02-14 16:39:46,650 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 [2019-02-14 16:39:46,652 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 [2019-02-14 16:39:46,652 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 [2019-02-14 16:39:46,654 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 [2019-02-14 16:39:46,655 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 [2019-02-14 16:39:46,656 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 [2019-02-14 16:39:46,656 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 [2019-02-14 16:39:46,658 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 [2019-02-14 16:39:46,659 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 [2019-02-14 16:39:46,660 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 [2019-02-14 16:39:46,660 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 [2019-02-14 16:39:46,662 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 [2019-02-14 16:39:46,667 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 [2019-02-14 16:39:46,668 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 [2019-02-14 16:39:46,669 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 [2019-02-14 16:39:46,669 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 [2019-02-14 16:39:46,671 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 [2019-02-14 16:39:46,672 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 [2019-02-14 16:39:46,673 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 [2019-02-14 16:39:46,674 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 [2019-02-14 16:39:46,675 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 [2019-02-14 16:39:46,676 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 [2019-02-14 16:39:46,677 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 [2019-02-14 16:39:46,678 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 [2019-02-14 16:39:46,679 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 [2019-02-14 16:39:46,680 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 [2019-02-14 16:39:46,681 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 [2019-02-14 16:39:46,682 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 [2019-02-14 16:39:46,683 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 [2019-02-14 16:39:46,684 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 [2019-02-14 16:39:46,685 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 [2019-02-14 16:39:46,686 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 [2019-02-14 16:39:46,687 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 [2019-02-14 16:39:46,688 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 [2019-02-14 16:39:46,689 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 [2019-02-14 16:39:46,692 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 [2019-02-14 16:39:46,695 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 [2019-02-14 16:39:46,695 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 [2019-02-14 16:39:46,697 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 [2019-02-14 16:39:46,697 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 [2019-02-14 16:39:46,699 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 [2019-02-14 16:39:46,700 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 [2019-02-14 16:39:46,701 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 [2019-02-14 16:39:46,702 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 [2019-02-14 16:39:46,703 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 [2019-02-14 16:39:46,704 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 [2019-02-14 16:39:46,705 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 [2019-02-14 16:39:46,706 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 [2019-02-14 16:39:46,707 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 [2019-02-14 16:39:46,708 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 [2019-02-14 16:39:46,709 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 [2019-02-14 16:39:46,710 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 [2019-02-14 16:39:46,711 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 [2019-02-14 16:39:46,712 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 [2019-02-14 16:39:46,713 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 [2019-02-14 16:39:46,715 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 [2019-02-14 16:39:46,717 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 [2019-02-14 16:39:46,718 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 [2019-02-14 16:39:46,719 INFO L273 TraceCheckUtils]: 60: Hoare triple {11833#(and (<= main_i 120) (< 29 main_n))} assume !(i <= n * 4); {11801#false} is VALID [2019-02-14 16:39:46,735 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:39:46,736 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:39:46,736 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:39:46,736 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:39:46,736 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:39:46,736 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:39:46,736 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 [2019-02-14 16:39:46,750 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:39:46,750 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:39:46,794 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 30 check-sat command(s) [2019-02-14 16:39:46,794 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:39:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:39:46,807 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:39:46,823 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 [2019-02-14 16:39:46,830 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:39:46,839 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:39:46,839 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:39:46,841 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:39:46,841 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_33]. (and (= main_a (store v_main_a_33 (* 4 main_n) 23)) (= main_i 0)) [2019-02-14 16:39:46,841 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:39:48,576 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 [2019-02-14 16:39:48,578 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:39:48,584 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:39:48,584 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:39:48,587 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:39:48,587 WARN L398 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)))) [2019-02-14 16:39:48,587 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 116 .cse0)) (<= main_i 120) (<= 116 .cse0))) [2019-02-14 16:39:48,625 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 [2019-02-14 16:39:48,626 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 [2019-02-14 16:39:48,627 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 [2019-02-14 16:39:48,627 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 [2019-02-14 16:39:48,628 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 [2019-02-14 16:39:48,629 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 [2019-02-14 16:39:48,629 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 [2019-02-14 16:39:48,630 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 [2019-02-14 16:39:48,631 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 [2019-02-14 16:39:48,632 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 [2019-02-14 16:39:48,632 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 [2019-02-14 16:39:48,633 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 [2019-02-14 16:39:48,634 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 [2019-02-14 16:39:48,634 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 [2019-02-14 16:39:48,657 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 [2019-02-14 16:39:48,673 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 [2019-02-14 16:39:48,682 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 [2019-02-14 16:39:48,696 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 [2019-02-14 16:39:48,705 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 [2019-02-14 16:39:48,708 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 [2019-02-14 16:39:48,709 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 [2019-02-14 16:39:48,710 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 [2019-02-14 16:39:48,710 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 [2019-02-14 16:39:48,711 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 [2019-02-14 16:39:48,711 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 [2019-02-14 16:39:48,711 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 [2019-02-14 16:39:48,712 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 [2019-02-14 16:39:48,712 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 [2019-02-14 16:39:48,713 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 [2019-02-14 16:39:48,713 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 [2019-02-14 16:39:48,714 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 [2019-02-14 16:39:48,714 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 [2019-02-14 16:39:48,715 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 [2019-02-14 16:39:48,715 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 [2019-02-14 16:39:48,716 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 [2019-02-14 16:39:48,717 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 [2019-02-14 16:39:48,717 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 [2019-02-14 16:39:48,718 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 [2019-02-14 16:39:48,719 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 [2019-02-14 16:39:48,720 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 [2019-02-14 16:39:48,720 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 [2019-02-14 16:39:48,721 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 [2019-02-14 16:39:48,722 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 [2019-02-14 16:39:48,722 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 [2019-02-14 16:39:48,723 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 [2019-02-14 16:39:48,724 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 [2019-02-14 16:39:48,724 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 [2019-02-14 16:39:48,725 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 [2019-02-14 16:39:48,726 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 [2019-02-14 16:39:48,726 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 [2019-02-14 16:39:48,727 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 [2019-02-14 16:39:48,728 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 [2019-02-14 16:39:48,729 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 [2019-02-14 16:39:48,729 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 [2019-02-14 16:39:48,730 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 [2019-02-14 16:39:48,731 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 [2019-02-14 16:39:48,731 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 [2019-02-14 16:39:48,732 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 [2019-02-14 16:39:48,733 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 [2019-02-14 16:39:48,734 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 [2019-02-14 16:39:48,734 INFO L273 TraceCheckUtils]: 60: Hoare triple {11833#(and (<= main_i 120) (< 29 main_n))} assume !(i <= n * 4); {11801#false} is VALID [2019-02-14 16:39:48,745 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:39:48,745 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:39:51,486 INFO L273 TraceCheckUtils]: 60: Hoare triple {12048#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {11801#false} is VALID [2019-02-14 16:39:51,486 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 [2019-02-14 16:39:51,488 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 [2019-02-14 16:39:51,489 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 [2019-02-14 16:39:51,490 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 [2019-02-14 16:39:51,491 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 [2019-02-14 16:39:51,492 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 [2019-02-14 16:39:51,493 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 [2019-02-14 16:39:51,494 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 [2019-02-14 16:39:51,495 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 [2019-02-14 16:39:51,496 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 [2019-02-14 16:39:51,497 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 [2019-02-14 16:39:51,497 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 [2019-02-14 16:39:51,502 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 [2019-02-14 16:39:51,502 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 [2019-02-14 16:39:51,504 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 [2019-02-14 16:39:51,504 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 [2019-02-14 16:39:51,506 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 [2019-02-14 16:39:51,506 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 [2019-02-14 16:39:51,509 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 [2019-02-14 16:39:51,509 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 [2019-02-14 16:39:51,511 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 [2019-02-14 16:39:51,511 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 [2019-02-14 16:39:51,513 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 [2019-02-14 16:39:51,513 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 [2019-02-14 16:39:51,515 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 [2019-02-14 16:39:51,515 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 [2019-02-14 16:39:51,517 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 [2019-02-14 16:39:51,517 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 [2019-02-14 16:39:51,519 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 [2019-02-14 16:39:51,519 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 [2019-02-14 16:39:51,521 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 [2019-02-14 16:39:51,521 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 [2019-02-14 16:39:51,523 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 [2019-02-14 16:39:51,523 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 [2019-02-14 16:39:51,525 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 [2019-02-14 16:39:51,525 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 [2019-02-14 16:39:51,527 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 [2019-02-14 16:39:51,527 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 [2019-02-14 16:39:51,529 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 [2019-02-14 16:39:51,529 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 [2019-02-14 16:39:51,531 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 [2019-02-14 16:39:51,531 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 [2019-02-14 16:39:51,533 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 [2019-02-14 16:39:51,533 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 [2019-02-14 16:39:51,535 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 [2019-02-14 16:39:51,535 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 [2019-02-14 16:39:51,537 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 [2019-02-14 16:39:51,537 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 [2019-02-14 16:39:51,539 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 [2019-02-14 16:39:51,541 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 [2019-02-14 16:39:51,543 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 [2019-02-14 16:39:51,543 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 [2019-02-14 16:39:51,546 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 [2019-02-14 16:39:51,546 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 [2019-02-14 16:39:51,548 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 [2019-02-14 16:39:51,548 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 [2019-02-14 16:39:51,550 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 [2019-02-14 16:39:51,550 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 [2019-02-14 16:39:51,551 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 [2019-02-14 16:39:51,552 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 [2019-02-14 16:39:51,571 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:39:51,589 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:39:51,589 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 95 [2019-02-14 16:39:51,589 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:39:51,590 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 61 [2019-02-14 16:39:51,590 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:39:51,590 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 65 states. [2019-02-14 16:39:51,768 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 121 edges. 121 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:39:51,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 65 states [2019-02-14 16:39:51,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2019-02-14 16:39:51,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1192, Invalid=8120, Unknown=0, NotChecked=0, Total=9312 [2019-02-14 16:39:51,769 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 65 states. [2019-02-14 16:39:56,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:39:56,988 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2019-02-14 16:39:56,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-02-14 16:39:56,988 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 61 [2019-02-14 16:39:56,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:39:56,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-02-14 16:39:56,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 66 transitions. [2019-02-14 16:39:56,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-02-14 16:39:56,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 66 transitions. [2019-02-14 16:39:56,990 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 34 states and 66 transitions. [2019-02-14 16:39:57,064 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 66 edges. 66 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:39:57,066 INFO L225 Difference]: With dead ends: 66 [2019-02-14 16:39:57,066 INFO L226 Difference]: Without dead ends: 65 [2019-02-14 16:39:57,067 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2108 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1192, Invalid=8120, Unknown=0, NotChecked=0, Total=9312 [2019-02-14 16:39:57,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-02-14 16:39:57,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64. [2019-02-14 16:39:57,127 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:39:57,127 INFO L82 GeneralOperation]: Start isEquivalent. First operand 65 states. Second operand 64 states. [2019-02-14 16:39:57,127 INFO L74 IsIncluded]: Start isIncluded. First operand 65 states. Second operand 64 states. [2019-02-14 16:39:57,127 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 64 states. [2019-02-14 16:39:57,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:39:57,129 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2019-02-14 16:39:57,129 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2019-02-14 16:39:57,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:39:57,129 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:39:57,130 INFO L74 IsIncluded]: Start isIncluded. First operand 64 states. Second operand 65 states. [2019-02-14 16:39:57,130 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 65 states. [2019-02-14 16:39:57,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:39:57,131 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2019-02-14 16:39:57,131 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2019-02-14 16:39:57,131 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:39:57,131 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:39:57,131 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:39:57,131 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:39:57,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-02-14 16:39:57,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2019-02-14 16:39:57,133 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 61 [2019-02-14 16:39:57,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:39:57,133 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2019-02-14 16:39:57,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has 65 states. [2019-02-14 16:39:57,133 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2019-02-14 16:39:57,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-02-14 16:39:57,134 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:39:57,134 INFO L402 BasicCegarLoop]: trace histogram [31, 30, 1, 1] [2019-02-14 16:39:57,134 INFO L423 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:39:57,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:39:57,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1889766628, now seen corresponding path program 30 times [2019-02-14 16:39:57,134 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:39:57,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:39:57,135 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:39:57,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:39:57,135 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:39:57,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:39:57,557 WARN L181 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-14 16:39:59,288 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 [2019-02-14 16:39:59,289 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 [2019-02-14 16:39:59,290 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 [2019-02-14 16:39:59,291 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 [2019-02-14 16:39:59,292 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 [2019-02-14 16:39:59,293 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 [2019-02-14 16:39:59,294 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 [2019-02-14 16:39:59,295 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 [2019-02-14 16:39:59,296 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 [2019-02-14 16:39:59,297 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 [2019-02-14 16:39:59,297 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 [2019-02-14 16:39:59,299 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 [2019-02-14 16:39:59,299 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 [2019-02-14 16:39:59,300 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 [2019-02-14 16:39:59,301 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 [2019-02-14 16:39:59,302 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 [2019-02-14 16:39:59,303 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 [2019-02-14 16:39:59,304 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 [2019-02-14 16:39:59,305 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 [2019-02-14 16:39:59,306 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 [2019-02-14 16:39:59,307 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 [2019-02-14 16:39:59,308 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 [2019-02-14 16:39:59,308 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 [2019-02-14 16:39:59,309 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 [2019-02-14 16:39:59,310 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 [2019-02-14 16:39:59,311 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 [2019-02-14 16:39:59,312 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 [2019-02-14 16:39:59,313 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 [2019-02-14 16:39:59,314 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 [2019-02-14 16:39:59,315 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 [2019-02-14 16:39:59,316 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 [2019-02-14 16:39:59,317 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 [2019-02-14 16:39:59,317 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 [2019-02-14 16:39:59,318 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 [2019-02-14 16:39:59,319 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 [2019-02-14 16:39:59,320 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 [2019-02-14 16:39:59,321 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 [2019-02-14 16:39:59,322 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 [2019-02-14 16:39:59,323 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 [2019-02-14 16:39:59,324 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 [2019-02-14 16:39:59,324 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 [2019-02-14 16:39:59,326 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 [2019-02-14 16:39:59,326 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 [2019-02-14 16:39:59,327 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 [2019-02-14 16:39:59,328 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 [2019-02-14 16:39:59,329 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 [2019-02-14 16:39:59,330 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 [2019-02-14 16:39:59,331 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 [2019-02-14 16:39:59,332 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 [2019-02-14 16:39:59,333 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 [2019-02-14 16:39:59,333 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 [2019-02-14 16:39:59,334 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 [2019-02-14 16:39:59,335 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 [2019-02-14 16:39:59,336 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 [2019-02-14 16:39:59,337 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 [2019-02-14 16:39:59,338 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 [2019-02-14 16:39:59,339 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 [2019-02-14 16:39:59,340 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 [2019-02-14 16:39:59,341 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 [2019-02-14 16:39:59,342 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 [2019-02-14 16:39:59,343 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 [2019-02-14 16:39:59,344 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 [2019-02-14 16:39:59,344 INFO L273 TraceCheckUtils]: 62: Hoare triple {12616#(and (<= main_i 124) (< 30 main_n))} assume !(i <= n * 4); {12583#false} is VALID [2019-02-14 16:39:59,365 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:39:59,365 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:39:59,365 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:39:59,365 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:39:59,365 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:39:59,371 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:39:59,371 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 [2019-02-14 16:39:59,381 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:39:59,381 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:39:59,399 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:39:59,399 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:39:59,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:39:59,410 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:39:59,426 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 [2019-02-14 16:39:59,427 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:39:59,434 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:39:59,434 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:39:59,436 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:39:59,436 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_34]. (and (= (store v_main_a_34 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:39:59,436 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:40:01,166 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 [2019-02-14 16:40:01,168 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:40:01,174 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:40:01,175 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:40:01,177 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:40:01,177 WARN L398 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)))) [2019-02-14 16:40:01,178 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 120 .cse0) (<= main_i 124) (not (= 120 .cse0)))) [2019-02-14 16:40:01,218 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 [2019-02-14 16:40:01,218 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 [2019-02-14 16:40:01,219 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 [2019-02-14 16:40:01,219 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 [2019-02-14 16:40:01,220 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 [2019-02-14 16:40:01,220 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 [2019-02-14 16:40:01,221 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 [2019-02-14 16:40:01,222 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 [2019-02-14 16:40:01,222 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 [2019-02-14 16:40:01,223 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 [2019-02-14 16:40:01,224 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 [2019-02-14 16:40:01,224 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 [2019-02-14 16:40:01,225 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 [2019-02-14 16:40:01,226 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 [2019-02-14 16:40:01,226 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 [2019-02-14 16:40:01,227 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 [2019-02-14 16:40:01,228 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 [2019-02-14 16:40:01,229 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 [2019-02-14 16:40:01,229 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 [2019-02-14 16:40:01,230 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 [2019-02-14 16:40:01,231 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 [2019-02-14 16:40:01,231 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 [2019-02-14 16:40:01,232 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 [2019-02-14 16:40:01,233 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 [2019-02-14 16:40:01,233 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 [2019-02-14 16:40:01,234 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 [2019-02-14 16:40:01,235 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 [2019-02-14 16:40:01,235 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 [2019-02-14 16:40:01,236 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 [2019-02-14 16:40:01,237 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 [2019-02-14 16:40:01,237 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 [2019-02-14 16:40:01,238 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 [2019-02-14 16:40:01,239 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 [2019-02-14 16:40:01,239 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 [2019-02-14 16:40:01,240 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 [2019-02-14 16:40:01,241 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 [2019-02-14 16:40:01,241 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 [2019-02-14 16:40:01,242 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 [2019-02-14 16:40:01,243 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 [2019-02-14 16:40:01,244 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 [2019-02-14 16:40:01,244 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 [2019-02-14 16:40:01,245 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 [2019-02-14 16:40:01,246 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 [2019-02-14 16:40:01,247 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 [2019-02-14 16:40:01,247 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 [2019-02-14 16:40:01,248 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 [2019-02-14 16:40:01,249 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 [2019-02-14 16:40:01,249 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 [2019-02-14 16:40:01,250 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 [2019-02-14 16:40:01,251 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 [2019-02-14 16:40:01,251 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 [2019-02-14 16:40:01,252 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 [2019-02-14 16:40:01,253 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 [2019-02-14 16:40:01,254 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 [2019-02-14 16:40:01,254 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 [2019-02-14 16:40:01,255 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 [2019-02-14 16:40:01,256 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 [2019-02-14 16:40:01,256 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 [2019-02-14 16:40:01,257 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 [2019-02-14 16:40:01,258 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 [2019-02-14 16:40:01,258 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 [2019-02-14 16:40:01,259 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 [2019-02-14 16:40:01,260 INFO L273 TraceCheckUtils]: 62: Hoare triple {12616#(and (<= main_i 124) (< 30 main_n))} assume !(i <= n * 4); {12583#false} is VALID [2019-02-14 16:40:01,271 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:40:01,271 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:40:04,342 INFO L273 TraceCheckUtils]: 62: Hoare triple {12838#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {12583#false} is VALID [2019-02-14 16:40:04,343 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 [2019-02-14 16:40:04,344 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 [2019-02-14 16:40:04,345 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 [2019-02-14 16:40:04,346 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 [2019-02-14 16:40:04,347 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 [2019-02-14 16:40:04,347 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 [2019-02-14 16:40:04,348 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 [2019-02-14 16:40:04,349 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 [2019-02-14 16:40:04,350 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 [2019-02-14 16:40:04,351 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 [2019-02-14 16:40:04,352 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 [2019-02-14 16:40:04,352 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 [2019-02-14 16:40:04,353 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 [2019-02-14 16:40:04,354 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 [2019-02-14 16:40:04,355 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 [2019-02-14 16:40:04,355 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 [2019-02-14 16:40:04,356 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 [2019-02-14 16:40:04,357 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 [2019-02-14 16:40:04,358 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 [2019-02-14 16:40:04,359 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 [2019-02-14 16:40:04,360 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 [2019-02-14 16:40:04,360 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 [2019-02-14 16:40:04,361 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 [2019-02-14 16:40:04,362 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 [2019-02-14 16:40:04,363 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 [2019-02-14 16:40:04,363 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 [2019-02-14 16:40:04,365 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 [2019-02-14 16:40:04,365 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 [2019-02-14 16:40:04,366 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 [2019-02-14 16:40:04,367 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 [2019-02-14 16:40:04,368 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 [2019-02-14 16:40:04,368 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 [2019-02-14 16:40:04,370 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 [2019-02-14 16:40:04,370 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 [2019-02-14 16:40:04,371 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 [2019-02-14 16:40:04,372 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 [2019-02-14 16:40:04,373 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 [2019-02-14 16:40:04,373 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 [2019-02-14 16:40:04,374 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 [2019-02-14 16:40:04,375 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 [2019-02-14 16:40:04,376 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 [2019-02-14 16:40:04,376 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 [2019-02-14 16:40:04,378 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 [2019-02-14 16:40:04,378 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 [2019-02-14 16:40:04,379 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 [2019-02-14 16:40:04,380 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 [2019-02-14 16:40:04,381 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 [2019-02-14 16:40:04,381 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 [2019-02-14 16:40:04,382 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 [2019-02-14 16:40:04,383 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 [2019-02-14 16:40:04,384 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 [2019-02-14 16:40:04,384 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 [2019-02-14 16:40:04,385 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 [2019-02-14 16:40:04,386 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 [2019-02-14 16:40:04,387 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 [2019-02-14 16:40:04,388 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 [2019-02-14 16:40:04,389 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 [2019-02-14 16:40:04,389 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 [2019-02-14 16:40:04,390 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 [2019-02-14 16:40:04,391 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 [2019-02-14 16:40:04,392 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 [2019-02-14 16:40:04,393 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 [2019-02-14 16:40:04,409 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:40:04,427 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:40:04,428 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 98 [2019-02-14 16:40:04,428 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:40:04,428 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 63 [2019-02-14 16:40:04,428 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:40:04,428 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 67 states. [2019-02-14 16:40:04,594 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 125 edges. 125 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:40:04,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 67 states [2019-02-14 16:40:04,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2019-02-14 16:40:04,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1262, Invalid=8638, Unknown=0, NotChecked=0, Total=9900 [2019-02-14 16:40:04,595 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand 67 states. [2019-02-14 16:40:10,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:40:10,887 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2019-02-14 16:40:10,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-02-14 16:40:10,887 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 63 [2019-02-14 16:40:10,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:40:10,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-02-14 16:40:10,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 68 transitions. [2019-02-14 16:40:10,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-02-14 16:40:10,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 68 transitions. [2019-02-14 16:40:10,889 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 35 states and 68 transitions. [2019-02-14 16:40:10,961 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 68 edges. 68 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:40:10,962 INFO L225 Difference]: With dead ends: 68 [2019-02-14 16:40:10,962 INFO L226 Difference]: Without dead ends: 67 [2019-02-14 16:40:10,963 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2240 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=1262, Invalid=8638, Unknown=0, NotChecked=0, Total=9900 [2019-02-14 16:40:10,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2019-02-14 16:40:11,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2019-02-14 16:40:11,030 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:40:11,030 INFO L82 GeneralOperation]: Start isEquivalent. First operand 67 states. Second operand 66 states. [2019-02-14 16:40:11,030 INFO L74 IsIncluded]: Start isIncluded. First operand 67 states. Second operand 66 states. [2019-02-14 16:40:11,030 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 66 states. [2019-02-14 16:40:11,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:40:11,032 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2019-02-14 16:40:11,032 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2019-02-14 16:40:11,032 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:40:11,033 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:40:11,033 INFO L74 IsIncluded]: Start isIncluded. First operand 66 states. Second operand 67 states. [2019-02-14 16:40:11,033 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 67 states. [2019-02-14 16:40:11,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:40:11,034 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2019-02-14 16:40:11,034 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2019-02-14 16:40:11,034 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:40:11,034 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:40:11,034 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:40:11,035 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:40:11,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-02-14 16:40:11,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 66 transitions. [2019-02-14 16:40:11,035 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 66 transitions. Word has length 63 [2019-02-14 16:40:11,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:40:11,036 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 66 transitions. [2019-02-14 16:40:11,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 67 states. [2019-02-14 16:40:11,036 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 66 transitions. [2019-02-14 16:40:11,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-02-14 16:40:11,036 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:40:11,036 INFO L402 BasicCegarLoop]: trace histogram [32, 31, 1, 1] [2019-02-14 16:40:11,036 INFO L423 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:40:11,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:40:11,037 INFO L82 PathProgramCache]: Analyzing trace with hash 705437790, now seen corresponding path program 31 times [2019-02-14 16:40:11,037 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:40:11,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:40:11,038 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:40:11,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:40:11,038 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:40:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:40:12,876 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 [2019-02-14 16:40:12,877 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 [2019-02-14 16:40:12,878 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 [2019-02-14 16:40:12,879 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 [2019-02-14 16:40:12,880 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 [2019-02-14 16:40:12,881 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 [2019-02-14 16:40:12,882 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 [2019-02-14 16:40:12,883 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 [2019-02-14 16:40:12,884 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 [2019-02-14 16:40:12,885 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 [2019-02-14 16:40:12,885 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 [2019-02-14 16:40:12,886 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 [2019-02-14 16:40:12,887 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 [2019-02-14 16:40:12,888 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 [2019-02-14 16:40:12,889 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 [2019-02-14 16:40:12,890 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 [2019-02-14 16:40:12,891 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 [2019-02-14 16:40:12,892 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 [2019-02-14 16:40:12,893 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 [2019-02-14 16:40:12,894 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 [2019-02-14 16:40:12,894 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 [2019-02-14 16:40:12,895 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 [2019-02-14 16:40:12,896 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 [2019-02-14 16:40:12,897 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 [2019-02-14 16:40:12,898 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 [2019-02-14 16:40:12,899 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 [2019-02-14 16:40:12,900 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 [2019-02-14 16:40:12,901 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 [2019-02-14 16:40:12,902 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 [2019-02-14 16:40:12,903 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 [2019-02-14 16:40:12,903 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 [2019-02-14 16:40:12,907 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 [2019-02-14 16:40:12,908 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 [2019-02-14 16:40:12,909 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 [2019-02-14 16:40:12,909 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 [2019-02-14 16:40:12,910 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 [2019-02-14 16:40:12,910 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 [2019-02-14 16:40:12,911 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 [2019-02-14 16:40:12,912 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 [2019-02-14 16:40:12,913 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 [2019-02-14 16:40:12,914 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 [2019-02-14 16:40:12,915 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 [2019-02-14 16:40:12,916 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 [2019-02-14 16:40:12,917 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 [2019-02-14 16:40:12,918 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 [2019-02-14 16:40:12,919 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 [2019-02-14 16:40:12,919 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 [2019-02-14 16:40:12,921 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 [2019-02-14 16:40:12,921 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 [2019-02-14 16:40:12,922 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 [2019-02-14 16:40:12,923 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 [2019-02-14 16:40:12,924 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 [2019-02-14 16:40:12,925 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 [2019-02-14 16:40:12,926 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 [2019-02-14 16:40:12,927 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 [2019-02-14 16:40:12,928 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 [2019-02-14 16:40:12,929 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 [2019-02-14 16:40:12,930 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 [2019-02-14 16:40:12,930 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 [2019-02-14 16:40:12,931 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 [2019-02-14 16:40:12,932 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 [2019-02-14 16:40:12,933 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 [2019-02-14 16:40:12,934 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 [2019-02-14 16:40:12,935 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 [2019-02-14 16:40:12,936 INFO L273 TraceCheckUtils]: 64: Hoare triple {13424#(and (< 31 main_n) (<= main_i 128))} assume !(i <= n * 4); {13390#false} is VALID [2019-02-14 16:40:12,956 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:40:12,956 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:40:12,956 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:40:12,956 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:40:12,957 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:40:12,957 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:40:12,957 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 [2019-02-14 16:40:12,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:40:12,966 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:40:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:40:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:40:12,997 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:40:13,014 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 [2019-02-14 16:40:13,015 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:40:13,019 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:40:13,020 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:40:13,022 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:40:13,022 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_35]. (and (= (store v_main_a_35 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:40:13,022 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:40:14,872 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 [2019-02-14 16:40:14,874 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:40:14,880 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:40:14,881 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:40:14,883 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:40:14,884 WARN L398 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)))) [2019-02-14 16:40:14,884 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 124 .cse0) (<= main_i 128) (not (= 124 .cse0)))) [2019-02-14 16:40:14,922 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 [2019-02-14 16:40:14,922 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 [2019-02-14 16:40:14,923 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 [2019-02-14 16:40:14,924 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 [2019-02-14 16:40:14,925 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 [2019-02-14 16:40:14,925 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 [2019-02-14 16:40:14,926 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 [2019-02-14 16:40:14,927 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 [2019-02-14 16:40:14,927 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 [2019-02-14 16:40:14,928 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 [2019-02-14 16:40:14,929 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 [2019-02-14 16:40:14,929 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 [2019-02-14 16:40:14,930 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 [2019-02-14 16:40:14,931 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 [2019-02-14 16:40:14,931 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 [2019-02-14 16:40:14,932 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 [2019-02-14 16:40:14,933 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 [2019-02-14 16:40:14,934 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 [2019-02-14 16:40:14,934 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 [2019-02-14 16:40:14,935 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 [2019-02-14 16:40:14,936 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 [2019-02-14 16:40:14,936 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 [2019-02-14 16:40:14,937 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 [2019-02-14 16:40:14,938 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 [2019-02-14 16:40:14,938 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 [2019-02-14 16:40:14,939 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 [2019-02-14 16:40:14,940 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 [2019-02-14 16:40:14,940 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 [2019-02-14 16:40:14,941 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 [2019-02-14 16:40:14,942 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 [2019-02-14 16:40:14,943 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 [2019-02-14 16:40:14,943 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 [2019-02-14 16:40:14,944 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 [2019-02-14 16:40:14,945 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 [2019-02-14 16:40:14,945 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 [2019-02-14 16:40:14,946 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 [2019-02-14 16:40:14,947 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 [2019-02-14 16:40:14,947 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 [2019-02-14 16:40:14,948 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 [2019-02-14 16:40:14,949 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 [2019-02-14 16:40:14,949 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 [2019-02-14 16:40:14,950 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 [2019-02-14 16:40:14,951 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 [2019-02-14 16:40:14,952 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 [2019-02-14 16:40:14,952 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 [2019-02-14 16:40:14,953 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 [2019-02-14 16:40:14,954 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 [2019-02-14 16:40:14,954 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 [2019-02-14 16:40:14,955 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 [2019-02-14 16:40:14,956 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 [2019-02-14 16:40:14,956 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 [2019-02-14 16:40:14,957 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 [2019-02-14 16:40:14,958 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 [2019-02-14 16:40:14,959 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 [2019-02-14 16:40:14,959 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 [2019-02-14 16:40:14,960 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 [2019-02-14 16:40:14,961 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 [2019-02-14 16:40:14,961 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 [2019-02-14 16:40:14,962 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 [2019-02-14 16:40:14,963 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 [2019-02-14 16:40:14,963 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 [2019-02-14 16:40:14,964 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 [2019-02-14 16:40:14,965 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 [2019-02-14 16:40:14,966 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 [2019-02-14 16:40:14,966 INFO L273 TraceCheckUtils]: 64: Hoare triple {13424#(and (< 31 main_n) (<= main_i 128))} assume !(i <= n * 4); {13390#false} is VALID [2019-02-14 16:40:14,977 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:40:14,977 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:40:18,209 INFO L273 TraceCheckUtils]: 64: Hoare triple {13653#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {13390#false} is VALID [2019-02-14 16:40:18,210 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 [2019-02-14 16:40:18,210 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 [2019-02-14 16:40:18,211 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 [2019-02-14 16:40:18,211 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 [2019-02-14 16:40:18,212 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 [2019-02-14 16:40:18,213 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 [2019-02-14 16:40:18,215 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 [2019-02-14 16:40:18,216 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 [2019-02-14 16:40:18,217 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 [2019-02-14 16:40:18,218 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 [2019-02-14 16:40:18,219 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 [2019-02-14 16:40:18,219 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 [2019-02-14 16:40:18,220 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 [2019-02-14 16:40:18,221 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 [2019-02-14 16:40:18,222 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 [2019-02-14 16:40:18,223 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 [2019-02-14 16:40:18,224 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 [2019-02-14 16:40:18,224 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 [2019-02-14 16:40:18,225 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 [2019-02-14 16:40:18,226 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 [2019-02-14 16:40:18,227 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 [2019-02-14 16:40:18,227 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 [2019-02-14 16:40:18,229 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 [2019-02-14 16:40:18,229 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 [2019-02-14 16:40:18,230 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 [2019-02-14 16:40:18,231 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 [2019-02-14 16:40:18,232 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 [2019-02-14 16:40:18,232 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 [2019-02-14 16:40:18,233 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 [2019-02-14 16:40:18,234 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 [2019-02-14 16:40:18,235 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 [2019-02-14 16:40:18,236 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 [2019-02-14 16:40:18,237 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 [2019-02-14 16:40:18,237 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 [2019-02-14 16:40:18,238 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 [2019-02-14 16:40:18,239 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 [2019-02-14 16:40:18,240 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 [2019-02-14 16:40:18,240 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 [2019-02-14 16:40:18,241 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 [2019-02-14 16:40:18,242 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 [2019-02-14 16:40:18,243 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 [2019-02-14 16:40:18,244 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 [2019-02-14 16:40:18,245 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 [2019-02-14 16:40:18,245 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 [2019-02-14 16:40:18,246 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 [2019-02-14 16:40:18,247 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 [2019-02-14 16:40:18,248 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 [2019-02-14 16:40:18,248 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 [2019-02-14 16:40:18,249 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 [2019-02-14 16:40:18,250 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 [2019-02-14 16:40:18,251 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 [2019-02-14 16:40:18,252 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 [2019-02-14 16:40:18,253 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 [2019-02-14 16:40:18,253 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 [2019-02-14 16:40:18,254 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 [2019-02-14 16:40:18,255 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 [2019-02-14 16:40:18,256 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 [2019-02-14 16:40:18,256 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 [2019-02-14 16:40:18,257 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 [2019-02-14 16:40:18,258 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 [2019-02-14 16:40:18,259 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 [2019-02-14 16:40:18,260 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 [2019-02-14 16:40:18,261 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 [2019-02-14 16:40:18,262 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 [2019-02-14 16:40:18,279 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:40:18,298 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:40:18,298 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 101 [2019-02-14 16:40:18,298 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:40:18,299 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 65 [2019-02-14 16:40:18,299 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:40:18,299 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 69 states. [2019-02-14 16:40:18,450 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 129 edges. 129 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:40:18,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 69 states [2019-02-14 16:40:18,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2019-02-14 16:40:18,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1334, Invalid=9172, Unknown=0, NotChecked=0, Total=10506 [2019-02-14 16:40:18,451 INFO L87 Difference]: Start difference. First operand 66 states and 66 transitions. Second operand 69 states. [2019-02-14 16:40:26,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:40:26,632 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2019-02-14 16:40:26,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-02-14 16:40:26,632 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 65 [2019-02-14 16:40:26,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:40:26,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-02-14 16:40:26,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 70 transitions. [2019-02-14 16:40:26,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-02-14 16:40:26,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 70 transitions. [2019-02-14 16:40:26,634 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 36 states and 70 transitions. [2019-02-14 16:40:26,708 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 70 edges. 70 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:40:26,709 INFO L225 Difference]: With dead ends: 70 [2019-02-14 16:40:26,709 INFO L226 Difference]: Without dead ends: 69 [2019-02-14 16:40:26,710 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2376 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=1334, Invalid=9172, Unknown=0, NotChecked=0, Total=10506 [2019-02-14 16:40:26,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-02-14 16:40:26,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2019-02-14 16:40:26,776 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:40:26,776 INFO L82 GeneralOperation]: Start isEquivalent. First operand 69 states. Second operand 68 states. [2019-02-14 16:40:26,777 INFO L74 IsIncluded]: Start isIncluded. First operand 69 states. Second operand 68 states. [2019-02-14 16:40:26,777 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 68 states. [2019-02-14 16:40:26,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:40:26,778 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2019-02-14 16:40:26,778 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2019-02-14 16:40:26,779 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:40:26,779 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:40:26,779 INFO L74 IsIncluded]: Start isIncluded. First operand 68 states. Second operand 69 states. [2019-02-14 16:40:26,779 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 69 states. [2019-02-14 16:40:26,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:40:26,780 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2019-02-14 16:40:26,780 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2019-02-14 16:40:26,780 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:40:26,780 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:40:26,780 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:40:26,780 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:40:26,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-02-14 16:40:26,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2019-02-14 16:40:26,781 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 65 [2019-02-14 16:40:26,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:40:26,781 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2019-02-14 16:40:26,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has 69 states. [2019-02-14 16:40:26,782 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2019-02-14 16:40:26,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-02-14 16:40:26,782 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:40:26,782 INFO L402 BasicCegarLoop]: trace histogram [33, 32, 1, 1] [2019-02-14 16:40:26,782 INFO L423 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:40:26,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:40:26,782 INFO L82 PathProgramCache]: Analyzing trace with hash -679115488, now seen corresponding path program 32 times [2019-02-14 16:40:26,782 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:40:26,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:40:26,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:40:26,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:40:26,783 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:40:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:40:28,648 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 [2019-02-14 16:40:28,649 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 [2019-02-14 16:40:28,650 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 [2019-02-14 16:40:28,651 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 [2019-02-14 16:40:28,652 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 [2019-02-14 16:40:28,653 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 [2019-02-14 16:40:28,675 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 [2019-02-14 16:40:28,676 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 [2019-02-14 16:40:28,676 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 [2019-02-14 16:40:28,677 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 [2019-02-14 16:40:28,678 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 [2019-02-14 16:40:28,678 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 [2019-02-14 16:40:28,679 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 [2019-02-14 16:40:28,680 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 [2019-02-14 16:40:28,681 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 [2019-02-14 16:40:28,682 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 [2019-02-14 16:40:28,682 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 [2019-02-14 16:40:28,683 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 [2019-02-14 16:40:28,684 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 [2019-02-14 16:40:28,705 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 [2019-02-14 16:40:28,720 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 [2019-02-14 16:40:28,735 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 [2019-02-14 16:40:28,744 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 [2019-02-14 16:40:28,758 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 [2019-02-14 16:40:28,767 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 [2019-02-14 16:40:28,778 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 [2019-02-14 16:40:28,792 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 [2019-02-14 16:40:28,807 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 [2019-02-14 16:40:28,821 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 [2019-02-14 16:40:28,830 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 [2019-02-14 16:40:28,843 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 [2019-02-14 16:40:28,855 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 [2019-02-14 16:40:28,869 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 [2019-02-14 16:40:28,883 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 [2019-02-14 16:40:28,892 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 [2019-02-14 16:40:28,899 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 [2019-02-14 16:40:28,902 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 [2019-02-14 16:40:28,902 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 [2019-02-14 16:40:28,904 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 [2019-02-14 16:40:28,904 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 [2019-02-14 16:40:28,906 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 [2019-02-14 16:40:28,907 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 [2019-02-14 16:40:28,908 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 [2019-02-14 16:40:28,909 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 [2019-02-14 16:40:28,909 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 [2019-02-14 16:40:28,910 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 [2019-02-14 16:40:28,911 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 [2019-02-14 16:40:28,912 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 [2019-02-14 16:40:28,913 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 [2019-02-14 16:40:28,914 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 [2019-02-14 16:40:28,915 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 [2019-02-14 16:40:28,916 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 [2019-02-14 16:40:28,916 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 [2019-02-14 16:40:28,917 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 [2019-02-14 16:40:28,918 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 [2019-02-14 16:40:28,919 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 [2019-02-14 16:40:28,920 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 [2019-02-14 16:40:28,921 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 [2019-02-14 16:40:28,922 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 [2019-02-14 16:40:28,923 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 [2019-02-14 16:40:28,923 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 [2019-02-14 16:40:28,924 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 [2019-02-14 16:40:28,925 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 [2019-02-14 16:40:28,926 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 [2019-02-14 16:40:28,927 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 [2019-02-14 16:40:28,928 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 [2019-02-14 16:40:28,929 INFO L273 TraceCheckUtils]: 66: Hoare triple {14257#(and (<= main_i 132) (<= 33 main_n))} assume !(i <= n * 4); {14222#false} is VALID [2019-02-14 16:40:28,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 0 proven. 1056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:40:28,950 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:40:28,950 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:40:28,950 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:40:28,951 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:40:28,951 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:40:28,951 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 [2019-02-14 16:40:28,959 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:40:28,959 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:40:29,011 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 33 check-sat command(s) [2019-02-14 16:40:29,011 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:40:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:40:29,022 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:40:29,028 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 [2019-02-14 16:40:29,035 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:40:29,038 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:40:29,038 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:40:29,041 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:40:29,041 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_36]. (and (= (store v_main_a_36 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:40:29,041 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:40:30,905 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 [2019-02-14 16:40:30,908 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:40:30,916 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:40:30,916 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:40:30,919 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:40:30,919 WARN L398 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)))) [2019-02-14 16:40:30,919 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 132) (<= 128 .cse0) (not (= 128 .cse0)))) [2019-02-14 16:40:30,963 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 [2019-02-14 16:40:30,963 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 [2019-02-14 16:40:30,964 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 [2019-02-14 16:40:30,964 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 [2019-02-14 16:40:30,965 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 [2019-02-14 16:40:30,965 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 [2019-02-14 16:40:30,966 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 [2019-02-14 16:40:30,966 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 [2019-02-14 16:40:30,967 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 [2019-02-14 16:40:30,968 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 [2019-02-14 16:40:30,968 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 [2019-02-14 16:40:30,969 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 [2019-02-14 16:40:30,970 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 [2019-02-14 16:40:30,971 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 [2019-02-14 16:40:30,971 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 [2019-02-14 16:40:30,972 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 [2019-02-14 16:40:30,973 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 [2019-02-14 16:40:30,973 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 [2019-02-14 16:40:30,974 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 [2019-02-14 16:40:30,975 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 [2019-02-14 16:40:30,976 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 [2019-02-14 16:40:30,976 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 [2019-02-14 16:40:30,977 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 [2019-02-14 16:40:30,978 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 [2019-02-14 16:40:30,978 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 [2019-02-14 16:40:30,979 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 [2019-02-14 16:40:30,980 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 [2019-02-14 16:40:30,981 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 [2019-02-14 16:40:30,981 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 [2019-02-14 16:40:30,982 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 [2019-02-14 16:40:30,983 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 [2019-02-14 16:40:30,983 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 [2019-02-14 16:40:30,984 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 [2019-02-14 16:40:30,985 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 [2019-02-14 16:40:30,985 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 [2019-02-14 16:40:30,986 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 [2019-02-14 16:40:30,987 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 [2019-02-14 16:40:30,987 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 [2019-02-14 16:40:30,988 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 [2019-02-14 16:40:30,989 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 [2019-02-14 16:40:30,990 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 [2019-02-14 16:40:30,990 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 [2019-02-14 16:40:30,991 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 [2019-02-14 16:40:30,992 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 [2019-02-14 16:40:30,993 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 [2019-02-14 16:40:30,993 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 [2019-02-14 16:40:30,994 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 [2019-02-14 16:40:30,995 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 [2019-02-14 16:40:30,995 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 [2019-02-14 16:40:30,996 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 [2019-02-14 16:40:30,997 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 [2019-02-14 16:40:30,998 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 [2019-02-14 16:40:30,998 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 [2019-02-14 16:40:30,999 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 [2019-02-14 16:40:31,000 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 [2019-02-14 16:40:31,001 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 [2019-02-14 16:40:31,001 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 [2019-02-14 16:40:31,002 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 [2019-02-14 16:40:31,005 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 [2019-02-14 16:40:31,005 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 [2019-02-14 16:40:31,006 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 [2019-02-14 16:40:31,006 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 [2019-02-14 16:40:31,007 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 [2019-02-14 16:40:31,007 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 [2019-02-14 16:40:31,008 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 [2019-02-14 16:40:31,008 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 [2019-02-14 16:40:31,009 INFO L273 TraceCheckUtils]: 66: Hoare triple {14257#(and (<= main_i 132) (<= 33 main_n))} assume !(i <= n * 4); {14222#false} is VALID [2019-02-14 16:40:31,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 0 proven. 1056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:40:31,022 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:40:34,513 INFO L273 TraceCheckUtils]: 66: Hoare triple {14493#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {14222#false} is VALID [2019-02-14 16:40:34,514 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 [2019-02-14 16:40:34,515 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 [2019-02-14 16:40:34,516 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 [2019-02-14 16:40:34,516 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 [2019-02-14 16:40:34,517 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 [2019-02-14 16:40:34,517 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 [2019-02-14 16:40:34,518 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 [2019-02-14 16:40:34,519 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 [2019-02-14 16:40:34,520 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 [2019-02-14 16:40:34,520 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 [2019-02-14 16:40:34,521 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 [2019-02-14 16:40:34,522 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 [2019-02-14 16:40:34,523 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 [2019-02-14 16:40:34,523 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 [2019-02-14 16:40:34,524 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 [2019-02-14 16:40:34,525 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 [2019-02-14 16:40:34,526 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 [2019-02-14 16:40:34,527 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 [2019-02-14 16:40:34,528 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 [2019-02-14 16:40:34,528 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 [2019-02-14 16:40:34,529 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 [2019-02-14 16:40:34,530 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 [2019-02-14 16:40:34,531 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 [2019-02-14 16:40:34,531 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 [2019-02-14 16:40:34,532 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 [2019-02-14 16:40:34,533 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 [2019-02-14 16:40:34,534 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 [2019-02-14 16:40:34,534 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 [2019-02-14 16:40:34,535 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 [2019-02-14 16:40:34,536 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 [2019-02-14 16:40:34,537 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 [2019-02-14 16:40:34,538 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 [2019-02-14 16:40:34,539 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 [2019-02-14 16:40:34,539 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 [2019-02-14 16:40:34,540 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 [2019-02-14 16:40:34,541 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 [2019-02-14 16:40:34,542 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 [2019-02-14 16:40:34,542 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 [2019-02-14 16:40:34,543 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 [2019-02-14 16:40:34,544 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 [2019-02-14 16:40:34,545 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 [2019-02-14 16:40:34,545 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 [2019-02-14 16:40:34,546 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 [2019-02-14 16:40:34,547 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 [2019-02-14 16:40:34,548 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 [2019-02-14 16:40:34,548 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 [2019-02-14 16:40:34,550 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 [2019-02-14 16:40:34,550 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 [2019-02-14 16:40:34,551 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 [2019-02-14 16:40:34,552 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 [2019-02-14 16:40:34,553 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 [2019-02-14 16:40:34,553 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 [2019-02-14 16:40:34,554 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 [2019-02-14 16:40:34,555 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 [2019-02-14 16:40:34,556 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 [2019-02-14 16:40:34,556 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 [2019-02-14 16:40:34,557 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 [2019-02-14 16:40:34,558 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 [2019-02-14 16:40:34,559 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 [2019-02-14 16:40:34,559 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 [2019-02-14 16:40:34,560 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 [2019-02-14 16:40:34,561 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 [2019-02-14 16:40:34,562 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 [2019-02-14 16:40:34,563 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 [2019-02-14 16:40:34,564 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 [2019-02-14 16:40:34,565 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 [2019-02-14 16:40:34,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 0 proven. 1056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:40:34,605 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:40:34,605 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 104 [2019-02-14 16:40:34,606 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:40:34,606 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 67 [2019-02-14 16:40:34,606 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:40:34,606 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 71 states. [2019-02-14 16:40:34,760 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 133 edges. 133 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:40:34,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 71 states [2019-02-14 16:40:34,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2019-02-14 16:40:34,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1408, Invalid=9722, Unknown=0, NotChecked=0, Total=11130 [2019-02-14 16:40:34,761 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand 71 states. [2019-02-14 16:40:40,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:40:40,988 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2019-02-14 16:40:40,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-02-14 16:40:40,988 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 67 [2019-02-14 16:40:40,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:40:40,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-02-14 16:40:40,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 72 transitions. [2019-02-14 16:40:40,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-02-14 16:40:40,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 72 transitions. [2019-02-14 16:40:40,990 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 37 states and 72 transitions. [2019-02-14 16:40:41,066 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 72 edges. 72 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:40:41,068 INFO L225 Difference]: With dead ends: 72 [2019-02-14 16:40:41,068 INFO L226 Difference]: Without dead ends: 71 [2019-02-14 16:40:41,069 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2516 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=1408, Invalid=9722, Unknown=0, NotChecked=0, Total=11130 [2019-02-14 16:40:41,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-02-14 16:40:41,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2019-02-14 16:40:41,135 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:40:41,135 INFO L82 GeneralOperation]: Start isEquivalent. First operand 71 states. Second operand 70 states. [2019-02-14 16:40:41,135 INFO L74 IsIncluded]: Start isIncluded. First operand 71 states. Second operand 70 states. [2019-02-14 16:40:41,135 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 70 states. [2019-02-14 16:40:41,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:40:41,136 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2019-02-14 16:40:41,137 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2019-02-14 16:40:41,137 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:40:41,137 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:40:41,137 INFO L74 IsIncluded]: Start isIncluded. First operand 70 states. Second operand 71 states. [2019-02-14 16:40:41,137 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 71 states. [2019-02-14 16:40:41,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:40:41,139 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2019-02-14 16:40:41,139 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2019-02-14 16:40:41,139 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:40:41,140 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:40:41,140 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:40:41,140 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:40:41,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-02-14 16:40:41,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 70 transitions. [2019-02-14 16:40:41,141 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 70 transitions. Word has length 67 [2019-02-14 16:40:41,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:40:41,141 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 70 transitions. [2019-02-14 16:40:41,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has 71 states. [2019-02-14 16:40:41,141 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 70 transitions. [2019-02-14 16:40:41,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-02-14 16:40:41,142 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:40:41,142 INFO L402 BasicCegarLoop]: trace histogram [34, 33, 1, 1] [2019-02-14 16:40:41,142 INFO L423 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:40:41,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:40:41,143 INFO L82 PathProgramCache]: Analyzing trace with hash 205046114, now seen corresponding path program 33 times [2019-02-14 16:40:41,143 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:40:41,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:40:41,143 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:40:41,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:40:41,144 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:40:41,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:40:43,154 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 [2019-02-14 16:40:43,155 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 [2019-02-14 16:40:43,156 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 [2019-02-14 16:40:43,157 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 [2019-02-14 16:40:43,157 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 [2019-02-14 16:40:43,158 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 [2019-02-14 16:40:43,159 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 [2019-02-14 16:40:43,160 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 [2019-02-14 16:40:43,161 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 [2019-02-14 16:40:43,162 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 [2019-02-14 16:40:43,163 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 [2019-02-14 16:40:43,164 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 [2019-02-14 16:40:43,165 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 [2019-02-14 16:40:43,166 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 [2019-02-14 16:40:43,166 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 [2019-02-14 16:40:43,167 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 [2019-02-14 16:40:43,168 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 [2019-02-14 16:40:43,169 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 [2019-02-14 16:40:43,170 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 [2019-02-14 16:40:43,171 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 [2019-02-14 16:40:43,172 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 [2019-02-14 16:40:43,173 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 [2019-02-14 16:40:43,173 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 [2019-02-14 16:40:43,174 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 [2019-02-14 16:40:43,175 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 [2019-02-14 16:40:43,176 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 [2019-02-14 16:40:43,177 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 [2019-02-14 16:40:43,178 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 [2019-02-14 16:40:43,179 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 [2019-02-14 16:40:43,180 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 [2019-02-14 16:40:43,180 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 [2019-02-14 16:40:43,181 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 [2019-02-14 16:40:43,182 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 [2019-02-14 16:40:43,183 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 [2019-02-14 16:40:43,184 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 [2019-02-14 16:40:43,185 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 [2019-02-14 16:40:43,186 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 [2019-02-14 16:40:43,187 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 [2019-02-14 16:40:43,187 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 [2019-02-14 16:40:43,188 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 [2019-02-14 16:40:43,189 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 [2019-02-14 16:40:43,190 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 [2019-02-14 16:40:43,191 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 [2019-02-14 16:40:43,192 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 [2019-02-14 16:40:43,193 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 [2019-02-14 16:40:43,194 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 [2019-02-14 16:40:43,194 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 [2019-02-14 16:40:43,196 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 [2019-02-14 16:40:43,196 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 [2019-02-14 16:40:43,197 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 [2019-02-14 16:40:43,198 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 [2019-02-14 16:40:43,199 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 [2019-02-14 16:40:43,200 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 [2019-02-14 16:40:43,201 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 [2019-02-14 16:40:43,202 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 [2019-02-14 16:40:43,203 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 [2019-02-14 16:40:43,203 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 [2019-02-14 16:40:43,204 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 [2019-02-14 16:40:43,205 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 [2019-02-14 16:40:43,206 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 [2019-02-14 16:40:43,207 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 [2019-02-14 16:40:43,208 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 [2019-02-14 16:40:43,209 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 [2019-02-14 16:40:43,210 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 [2019-02-14 16:40:43,210 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 [2019-02-14 16:40:43,212 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 [2019-02-14 16:40:43,213 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 [2019-02-14 16:40:43,214 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 [2019-02-14 16:40:43,214 INFO L273 TraceCheckUtils]: 68: Hoare triple {15115#(and (<= main_i 136) (<= 34 main_n))} assume !(i <= n * 4); {15079#false} is VALID [2019-02-14 16:40:43,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:40:43,237 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:40:43,237 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:40:43,237 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:40:43,237 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:40:43,237 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:40:43,237 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 [2019-02-14 16:40:43,246 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:40:43,246 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:40:43,265 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:40:43,265 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:40:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:40:43,278 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:40:43,294 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 [2019-02-14 16:40:43,295 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:40:43,299 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:40:43,299 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:40:43,301 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:40:43,301 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_37]. (and (= (store v_main_a_37 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:40:43,301 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:40:45,290 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 [2019-02-14 16:40:45,291 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:40:45,297 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:40:45,297 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:40:45,300 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:40:45,300 WARN L398 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)))) [2019-02-14 16:40:45,300 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 136) (<= 132 .cse0) (not (= 132 .cse0)))) [2019-02-14 16:40:45,346 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 [2019-02-14 16:40:45,347 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 [2019-02-14 16:40:45,347 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 [2019-02-14 16:40:45,348 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 [2019-02-14 16:40:45,349 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 [2019-02-14 16:40:45,349 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 [2019-02-14 16:40:45,350 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 [2019-02-14 16:40:45,351 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 [2019-02-14 16:40:45,351 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 [2019-02-14 16:40:45,352 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 [2019-02-14 16:40:45,353 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 [2019-02-14 16:40:45,353 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 [2019-02-14 16:40:45,354 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 [2019-02-14 16:40:45,355 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 [2019-02-14 16:40:45,355 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 [2019-02-14 16:40:45,356 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 [2019-02-14 16:40:45,357 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 [2019-02-14 16:40:45,357 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 [2019-02-14 16:40:45,358 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 [2019-02-14 16:40:45,359 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 [2019-02-14 16:40:45,359 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 [2019-02-14 16:40:45,360 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 [2019-02-14 16:40:45,361 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 [2019-02-14 16:40:45,361 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 [2019-02-14 16:40:45,362 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 [2019-02-14 16:40:45,363 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 [2019-02-14 16:40:45,363 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 [2019-02-14 16:40:45,364 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 [2019-02-14 16:40:45,365 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 [2019-02-14 16:40:45,365 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 [2019-02-14 16:40:45,366 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 [2019-02-14 16:40:45,367 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 [2019-02-14 16:40:45,367 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 [2019-02-14 16:40:45,368 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 [2019-02-14 16:40:45,369 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 [2019-02-14 16:40:45,369 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 [2019-02-14 16:40:45,370 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 [2019-02-14 16:40:45,371 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 [2019-02-14 16:40:45,371 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 [2019-02-14 16:40:45,372 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 [2019-02-14 16:40:45,373 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 [2019-02-14 16:40:45,374 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 [2019-02-14 16:40:45,374 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 [2019-02-14 16:40:45,375 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 [2019-02-14 16:40:45,376 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 [2019-02-14 16:40:45,376 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 [2019-02-14 16:40:45,377 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 [2019-02-14 16:40:45,378 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 [2019-02-14 16:40:45,378 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 [2019-02-14 16:40:45,379 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 [2019-02-14 16:40:45,380 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 [2019-02-14 16:40:45,380 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 [2019-02-14 16:40:45,381 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 [2019-02-14 16:40:45,382 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 [2019-02-14 16:40:45,382 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 [2019-02-14 16:40:45,383 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 [2019-02-14 16:40:45,384 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 [2019-02-14 16:40:45,384 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 [2019-02-14 16:40:45,385 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 [2019-02-14 16:40:45,386 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 [2019-02-14 16:40:45,386 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 [2019-02-14 16:40:45,387 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 [2019-02-14 16:40:45,388 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 [2019-02-14 16:40:45,389 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 [2019-02-14 16:40:45,389 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 [2019-02-14 16:40:45,390 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 [2019-02-14 16:40:45,391 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 [2019-02-14 16:40:45,392 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 [2019-02-14 16:40:45,392 INFO L273 TraceCheckUtils]: 68: Hoare triple {15115#(and (<= main_i 136) (<= 34 main_n))} assume !(i <= n * 4); {15079#false} is VALID [2019-02-14 16:40:45,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:40:45,405 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:40:49,018 INFO L273 TraceCheckUtils]: 68: Hoare triple {15358#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {15079#false} is VALID [2019-02-14 16:40:49,019 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 [2019-02-14 16:40:49,020 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 [2019-02-14 16:40:49,020 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 [2019-02-14 16:40:49,021 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 [2019-02-14 16:40:49,021 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 [2019-02-14 16:40:49,022 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 [2019-02-14 16:40:49,022 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 [2019-02-14 16:40:49,023 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 [2019-02-14 16:40:49,024 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 [2019-02-14 16:40:49,025 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 [2019-02-14 16:40:49,026 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 [2019-02-14 16:40:49,026 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 [2019-02-14 16:40:49,027 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 [2019-02-14 16:40:49,028 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 [2019-02-14 16:40:49,029 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 [2019-02-14 16:40:49,029 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 [2019-02-14 16:40:49,031 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 [2019-02-14 16:40:49,031 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 [2019-02-14 16:40:49,032 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 [2019-02-14 16:40:49,033 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 [2019-02-14 16:40:49,034 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 [2019-02-14 16:40:49,034 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 [2019-02-14 16:40:49,035 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 [2019-02-14 16:40:49,036 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 [2019-02-14 16:40:49,037 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 [2019-02-14 16:40:49,037 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 [2019-02-14 16:40:49,038 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 [2019-02-14 16:40:49,039 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 [2019-02-14 16:40:49,040 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 [2019-02-14 16:40:49,045 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 [2019-02-14 16:40:49,046 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 [2019-02-14 16:40:49,047 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 [2019-02-14 16:40:49,047 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 [2019-02-14 16:40:49,048 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 [2019-02-14 16:40:49,048 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 [2019-02-14 16:40:49,049 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 [2019-02-14 16:40:49,049 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 [2019-02-14 16:40:49,050 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 [2019-02-14 16:40:49,051 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 [2019-02-14 16:40:49,052 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 [2019-02-14 16:40:49,053 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 [2019-02-14 16:40:49,053 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 [2019-02-14 16:40:49,054 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 [2019-02-14 16:40:49,055 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 [2019-02-14 16:40:49,056 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 [2019-02-14 16:40:49,056 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 [2019-02-14 16:40:49,057 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 [2019-02-14 16:40:49,058 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 [2019-02-14 16:40:49,059 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 [2019-02-14 16:40:49,059 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 [2019-02-14 16:40:49,060 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 [2019-02-14 16:40:49,061 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 [2019-02-14 16:40:49,062 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 [2019-02-14 16:40:49,063 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 [2019-02-14 16:40:49,064 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 [2019-02-14 16:40:49,064 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 [2019-02-14 16:40:49,065 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 [2019-02-14 16:40:49,066 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 [2019-02-14 16:40:49,067 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 [2019-02-14 16:40:49,067 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 [2019-02-14 16:40:49,068 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 [2019-02-14 16:40:49,069 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 [2019-02-14 16:40:49,070 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 [2019-02-14 16:40:49,070 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 [2019-02-14 16:40:49,071 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 [2019-02-14 16:40:49,072 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 [2019-02-14 16:40:49,073 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 [2019-02-14 16:40:49,074 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 [2019-02-14 16:40:49,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:40:49,112 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:40:49,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36, 36] total 107 [2019-02-14 16:40:49,113 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:40:49,113 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 69 [2019-02-14 16:40:49,113 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:40:49,113 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 73 states. [2019-02-14 16:40:49,271 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 137 edges. 137 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:40:49,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 73 states [2019-02-14 16:40:49,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2019-02-14 16:40:49,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1484, Invalid=10288, Unknown=0, NotChecked=0, Total=11772 [2019-02-14 16:40:49,273 INFO L87 Difference]: Start difference. First operand 70 states and 70 transitions. Second operand 73 states. [2019-02-14 16:40:57,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:40:57,952 INFO L93 Difference]: Finished difference Result 74 states and 74 transitions. [2019-02-14 16:40:57,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-02-14 16:40:57,952 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 69 [2019-02-14 16:40:57,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:40:57,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-02-14 16:40:57,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 74 transitions. [2019-02-14 16:40:57,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-02-14 16:40:57,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 74 transitions. [2019-02-14 16:40:57,954 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 38 states and 74 transitions. [2019-02-14 16:40:58,043 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:40:58,044 INFO L225 Difference]: With dead ends: 74 [2019-02-14 16:40:58,044 INFO L226 Difference]: Without dead ends: 73 [2019-02-14 16:40:58,045 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2660 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=1484, Invalid=10288, Unknown=0, NotChecked=0, Total=11772 [2019-02-14 16:40:58,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-02-14 16:40:58,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 72. [2019-02-14 16:40:58,248 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:40:58,248 INFO L82 GeneralOperation]: Start isEquivalent. First operand 73 states. Second operand 72 states. [2019-02-14 16:40:58,248 INFO L74 IsIncluded]: Start isIncluded. First operand 73 states. Second operand 72 states. [2019-02-14 16:40:58,248 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 72 states. [2019-02-14 16:40:58,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:40:58,249 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2019-02-14 16:40:58,249 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2019-02-14 16:40:58,249 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:40:58,249 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:40:58,250 INFO L74 IsIncluded]: Start isIncluded. First operand 72 states. Second operand 73 states. [2019-02-14 16:40:58,250 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 73 states. [2019-02-14 16:40:58,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:40:58,251 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2019-02-14 16:40:58,251 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2019-02-14 16:40:58,251 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:40:58,251 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:40:58,251 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:40:58,251 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:40:58,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-02-14 16:40:58,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 72 transitions. [2019-02-14 16:40:58,252 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 72 transitions. Word has length 69 [2019-02-14 16:40:58,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:40:58,253 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 72 transitions. [2019-02-14 16:40:58,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has 73 states. [2019-02-14 16:40:58,253 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 72 transitions. [2019-02-14 16:40:58,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-02-14 16:40:58,253 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:40:58,254 INFO L402 BasicCegarLoop]: trace histogram [35, 34, 1, 1] [2019-02-14 16:40:58,254 INFO L423 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:40:58,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:40:58,254 INFO L82 PathProgramCache]: Analyzing trace with hash -519178972, now seen corresponding path program 34 times [2019-02-14 16:40:58,254 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:40:58,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:40:58,255 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:40:58,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:40:58,255 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:40:58,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:41:00,088 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 [2019-02-14 16:41:00,090 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 [2019-02-14 16:41:00,090 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 [2019-02-14 16:41:00,091 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 [2019-02-14 16:41:00,092 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 [2019-02-14 16:41:00,093 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 [2019-02-14 16:41:00,094 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 [2019-02-14 16:41:00,095 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 [2019-02-14 16:41:00,096 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 [2019-02-14 16:41:00,097 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 [2019-02-14 16:41:00,098 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 [2019-02-14 16:41:00,099 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 [2019-02-14 16:41:00,099 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 [2019-02-14 16:41:00,100 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 [2019-02-14 16:41:00,101 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 [2019-02-14 16:41:00,102 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 [2019-02-14 16:41:00,103 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 [2019-02-14 16:41:00,104 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 [2019-02-14 16:41:00,105 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 [2019-02-14 16:41:00,106 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 [2019-02-14 16:41:00,106 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 [2019-02-14 16:41:00,107 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 [2019-02-14 16:41:00,108 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 [2019-02-14 16:41:00,109 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 [2019-02-14 16:41:00,110 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 [2019-02-14 16:41:00,111 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 [2019-02-14 16:41:00,112 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 [2019-02-14 16:41:00,113 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 [2019-02-14 16:41:00,114 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 [2019-02-14 16:41:00,115 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 [2019-02-14 16:41:00,115 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 [2019-02-14 16:41:00,116 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 [2019-02-14 16:41:00,117 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 [2019-02-14 16:41:00,118 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 [2019-02-14 16:41:00,119 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 [2019-02-14 16:41:00,120 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 [2019-02-14 16:41:00,121 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 [2019-02-14 16:41:00,122 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 [2019-02-14 16:41:00,122 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 [2019-02-14 16:41:00,124 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 [2019-02-14 16:41:00,124 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 [2019-02-14 16:41:00,125 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 [2019-02-14 16:41:00,126 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 [2019-02-14 16:41:00,127 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 [2019-02-14 16:41:00,128 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 [2019-02-14 16:41:00,129 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 [2019-02-14 16:41:00,130 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 [2019-02-14 16:41:00,131 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 [2019-02-14 16:41:00,131 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 [2019-02-14 16:41:00,132 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 [2019-02-14 16:41:00,133 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 [2019-02-14 16:41:00,134 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 [2019-02-14 16:41:00,135 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 [2019-02-14 16:41:00,136 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 [2019-02-14 16:41:00,137 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 [2019-02-14 16:41:00,138 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 [2019-02-14 16:41:00,139 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 [2019-02-14 16:41:00,140 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 [2019-02-14 16:41:00,140 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 [2019-02-14 16:41:00,141 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 [2019-02-14 16:41:00,142 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 [2019-02-14 16:41:00,143 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 [2019-02-14 16:41:00,144 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 [2019-02-14 16:41:00,145 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 [2019-02-14 16:41:00,146 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 [2019-02-14 16:41:00,147 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 [2019-02-14 16:41:00,147 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 [2019-02-14 16:41:00,149 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 [2019-02-14 16:41:00,150 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 [2019-02-14 16:41:00,151 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 [2019-02-14 16:41:00,151 INFO L273 TraceCheckUtils]: 70: Hoare triple {15998#(and (< 34 main_n) (<= main_i 140))} assume !(i <= n * 4); {15961#false} is VALID [2019-02-14 16:41:00,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:41:00,175 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:41:00,175 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:41:00,176 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:41:00,176 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:41:00,176 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:41:00,176 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 [2019-02-14 16:41:00,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:41:00,186 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:41:00,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:41:00,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:41:00,225 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:41:00,230 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 [2019-02-14 16:41:00,232 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:41:00,239 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:41:00,239 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:41:00,242 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:41:00,242 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_38]. (and (= (store v_main_a_38 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:41:00,242 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:41:02,331 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 [2019-02-14 16:41:02,333 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:41:02,339 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:41:02,340 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:41:02,342 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:41:02,342 WARN L398 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))) [2019-02-14 16:41:02,343 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 136 .cse0)) (<= 136 .cse0) (<= main_i 140))) [2019-02-14 16:41:02,390 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 [2019-02-14 16:41:02,390 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 [2019-02-14 16:41:02,391 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 [2019-02-14 16:41:02,392 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 [2019-02-14 16:41:02,393 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 [2019-02-14 16:41:02,394 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 [2019-02-14 16:41:02,394 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 [2019-02-14 16:41:02,395 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 [2019-02-14 16:41:02,396 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 [2019-02-14 16:41:02,396 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 [2019-02-14 16:41:02,397 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 [2019-02-14 16:41:02,398 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 [2019-02-14 16:41:02,398 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 [2019-02-14 16:41:02,399 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 [2019-02-14 16:41:02,400 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 [2019-02-14 16:41:02,401 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 [2019-02-14 16:41:02,401 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 [2019-02-14 16:41:02,402 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 [2019-02-14 16:41:02,403 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 [2019-02-14 16:41:02,403 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 [2019-02-14 16:41:02,404 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 [2019-02-14 16:41:02,405 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 [2019-02-14 16:41:02,405 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 [2019-02-14 16:41:02,406 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 [2019-02-14 16:41:02,407 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 [2019-02-14 16:41:02,408 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 [2019-02-14 16:41:02,408 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 [2019-02-14 16:41:02,409 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 [2019-02-14 16:41:02,410 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 [2019-02-14 16:41:02,410 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 [2019-02-14 16:41:02,411 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 [2019-02-14 16:41:02,412 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 [2019-02-14 16:41:02,412 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 [2019-02-14 16:41:02,413 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 [2019-02-14 16:41:02,414 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 [2019-02-14 16:41:02,414 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 [2019-02-14 16:41:02,415 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 [2019-02-14 16:41:02,416 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 [2019-02-14 16:41:02,416 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 [2019-02-14 16:41:02,417 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 [2019-02-14 16:41:02,418 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 [2019-02-14 16:41:02,418 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 [2019-02-14 16:41:02,419 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 [2019-02-14 16:41:02,420 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 [2019-02-14 16:41:02,421 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 [2019-02-14 16:41:02,421 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 [2019-02-14 16:41:02,422 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 [2019-02-14 16:41:02,423 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 [2019-02-14 16:41:02,423 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 [2019-02-14 16:41:02,424 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 [2019-02-14 16:41:02,425 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 [2019-02-14 16:41:02,425 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 [2019-02-14 16:41:02,426 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 [2019-02-14 16:41:02,427 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 [2019-02-14 16:41:02,427 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 [2019-02-14 16:41:02,428 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 [2019-02-14 16:41:02,429 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 [2019-02-14 16:41:02,429 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 [2019-02-14 16:41:02,430 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 [2019-02-14 16:41:02,431 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 [2019-02-14 16:41:02,431 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 [2019-02-14 16:41:02,432 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 [2019-02-14 16:41:02,433 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 [2019-02-14 16:41:02,434 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 [2019-02-14 16:41:02,434 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 [2019-02-14 16:41:02,435 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 [2019-02-14 16:41:02,436 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 [2019-02-14 16:41:02,436 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 [2019-02-14 16:41:02,437 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 [2019-02-14 16:41:02,438 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 [2019-02-14 16:41:02,439 INFO L273 TraceCheckUtils]: 70: Hoare triple {15998#(and (< 34 main_n) (<= main_i 140))} assume !(i <= n * 4); {15961#false} is VALID [2019-02-14 16:41:02,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:41:02,451 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:41:06,209 INFO L273 TraceCheckUtils]: 70: Hoare triple {16248#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {15961#false} is VALID [2019-02-14 16:41:06,210 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 [2019-02-14 16:41:06,211 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 [2019-02-14 16:41:06,212 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 [2019-02-14 16:41:06,213 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 [2019-02-14 16:41:06,213 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 [2019-02-14 16:41:06,214 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 [2019-02-14 16:41:06,214 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 [2019-02-14 16:41:06,215 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 [2019-02-14 16:41:06,215 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 [2019-02-14 16:41:06,216 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 [2019-02-14 16:41:06,217 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 [2019-02-14 16:41:06,217 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 [2019-02-14 16:41:06,218 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 [2019-02-14 16:41:06,219 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 [2019-02-14 16:41:06,220 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 [2019-02-14 16:41:06,220 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 [2019-02-14 16:41:06,222 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 [2019-02-14 16:41:06,222 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 [2019-02-14 16:41:06,223 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 [2019-02-14 16:41:06,224 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 [2019-02-14 16:41:06,225 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 [2019-02-14 16:41:06,225 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 [2019-02-14 16:41:06,226 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 [2019-02-14 16:41:06,227 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 [2019-02-14 16:41:06,228 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 [2019-02-14 16:41:06,228 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 [2019-02-14 16:41:06,229 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 [2019-02-14 16:41:06,230 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 [2019-02-14 16:41:06,231 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 [2019-02-14 16:41:06,232 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 [2019-02-14 16:41:06,233 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 [2019-02-14 16:41:06,233 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 [2019-02-14 16:41:06,234 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 [2019-02-14 16:41:06,235 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 [2019-02-14 16:41:06,236 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 [2019-02-14 16:41:06,236 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 [2019-02-14 16:41:06,237 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 [2019-02-14 16:41:06,238 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 [2019-02-14 16:41:06,239 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 [2019-02-14 16:41:06,239 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 [2019-02-14 16:41:06,240 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 [2019-02-14 16:41:06,241 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 [2019-02-14 16:41:06,242 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 [2019-02-14 16:41:06,243 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 [2019-02-14 16:41:06,244 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 [2019-02-14 16:41:06,244 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 [2019-02-14 16:41:06,245 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 [2019-02-14 16:41:06,246 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 [2019-02-14 16:41:06,247 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 [2019-02-14 16:41:06,247 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 [2019-02-14 16:41:06,248 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 [2019-02-14 16:41:06,249 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 [2019-02-14 16:41:06,250 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 [2019-02-14 16:41:06,250 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 [2019-02-14 16:41:06,252 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 [2019-02-14 16:41:06,252 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 [2019-02-14 16:41:06,253 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 [2019-02-14 16:41:06,254 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 [2019-02-14 16:41:06,255 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 [2019-02-14 16:41:06,255 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 [2019-02-14 16:41:06,256 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 [2019-02-14 16:41:06,257 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 [2019-02-14 16:41:06,258 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 [2019-02-14 16:41:06,258 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 [2019-02-14 16:41:06,259 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 [2019-02-14 16:41:06,260 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 [2019-02-14 16:41:06,261 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 [2019-02-14 16:41:06,262 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 [2019-02-14 16:41:06,263 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 [2019-02-14 16:41:06,264 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 [2019-02-14 16:41:06,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:41:06,301 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:41:06,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 110 [2019-02-14 16:41:06,302 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:41:06,302 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 71 [2019-02-14 16:41:06,302 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:41:06,302 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 75 states. [2019-02-14 16:41:06,469 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 141 edges. 141 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:41:06,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 75 states [2019-02-14 16:41:06,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2019-02-14 16:41:06,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1562, Invalid=10870, Unknown=0, NotChecked=0, Total=12432 [2019-02-14 16:41:06,470 INFO L87 Difference]: Start difference. First operand 72 states and 72 transitions. Second operand 75 states. [2019-02-14 16:41:17,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:41:17,006 INFO L93 Difference]: Finished difference Result 76 states and 76 transitions. [2019-02-14 16:41:17,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-02-14 16:41:17,006 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 71 [2019-02-14 16:41:17,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:41:17,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-02-14 16:41:17,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 76 transitions. [2019-02-14 16:41:17,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-02-14 16:41:17,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 76 transitions. [2019-02-14 16:41:17,008 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 39 states and 76 transitions. [2019-02-14 16:41:17,089 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 76 edges. 76 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:41:17,091 INFO L225 Difference]: With dead ends: 76 [2019-02-14 16:41:17,091 INFO L226 Difference]: Without dead ends: 75 [2019-02-14 16:41:17,092 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 [2019-02-14 16:41:17,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-02-14 16:41:17,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2019-02-14 16:41:17,169 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:41:17,169 INFO L82 GeneralOperation]: Start isEquivalent. First operand 75 states. Second operand 74 states. [2019-02-14 16:41:17,170 INFO L74 IsIncluded]: Start isIncluded. First operand 75 states. Second operand 74 states. [2019-02-14 16:41:17,170 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 74 states. [2019-02-14 16:41:17,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:41:17,171 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2019-02-14 16:41:17,171 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 75 transitions. [2019-02-14 16:41:17,171 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:41:17,172 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:41:17,172 INFO L74 IsIncluded]: Start isIncluded. First operand 74 states. Second operand 75 states. [2019-02-14 16:41:17,172 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 75 states. [2019-02-14 16:41:17,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:41:17,172 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2019-02-14 16:41:17,173 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 75 transitions. [2019-02-14 16:41:17,173 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:41:17,173 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:41:17,173 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:41:17,173 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:41:17,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-02-14 16:41:17,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 74 transitions. [2019-02-14 16:41:17,174 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 74 transitions. Word has length 71 [2019-02-14 16:41:17,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:41:17,174 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 74 transitions. [2019-02-14 16:41:17,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has 75 states. [2019-02-14 16:41:17,174 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 74 transitions. [2019-02-14 16:41:17,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-02-14 16:41:17,174 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:41:17,175 INFO L402 BasicCegarLoop]: trace histogram [36, 35, 1, 1] [2019-02-14 16:41:17,175 INFO L423 AbstractCegarLoop]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:41:17,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:41:17,175 INFO L82 PathProgramCache]: Analyzing trace with hash -714784666, now seen corresponding path program 35 times [2019-02-14 16:41:17,175 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:41:17,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:41:17,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:41:17,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:41:17,176 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:41:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:41:19,398 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 [2019-02-14 16:41:19,399 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 [2019-02-14 16:41:19,400 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 [2019-02-14 16:41:19,401 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 [2019-02-14 16:41:19,402 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 [2019-02-14 16:41:19,403 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 [2019-02-14 16:41:19,403 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 [2019-02-14 16:41:19,404 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 [2019-02-14 16:41:19,405 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 [2019-02-14 16:41:19,406 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 [2019-02-14 16:41:19,407 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 [2019-02-14 16:41:19,408 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 [2019-02-14 16:41:19,409 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 [2019-02-14 16:41:19,410 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 [2019-02-14 16:41:19,411 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 [2019-02-14 16:41:19,412 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 [2019-02-14 16:41:19,412 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 [2019-02-14 16:41:19,413 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 [2019-02-14 16:41:19,414 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 [2019-02-14 16:41:19,415 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 [2019-02-14 16:41:19,416 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 [2019-02-14 16:41:19,417 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 [2019-02-14 16:41:19,418 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 [2019-02-14 16:41:19,419 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 [2019-02-14 16:41:19,420 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 [2019-02-14 16:41:19,421 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 [2019-02-14 16:41:19,421 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 [2019-02-14 16:41:19,422 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 [2019-02-14 16:41:19,423 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 [2019-02-14 16:41:19,424 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 [2019-02-14 16:41:19,425 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 [2019-02-14 16:41:19,426 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 [2019-02-14 16:41:19,427 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 [2019-02-14 16:41:19,428 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 [2019-02-14 16:41:19,428 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 [2019-02-14 16:41:19,430 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 [2019-02-14 16:41:19,430 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 [2019-02-14 16:41:19,431 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 [2019-02-14 16:41:19,432 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 [2019-02-14 16:41:19,433 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 [2019-02-14 16:41:19,434 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 [2019-02-14 16:41:19,435 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 [2019-02-14 16:41:19,436 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 [2019-02-14 16:41:19,437 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 [2019-02-14 16:41:19,438 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 [2019-02-14 16:41:19,439 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 [2019-02-14 16:41:19,439 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 [2019-02-14 16:41:19,441 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 [2019-02-14 16:41:19,441 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 [2019-02-14 16:41:19,442 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 [2019-02-14 16:41:19,443 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 [2019-02-14 16:41:19,444 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 [2019-02-14 16:41:19,445 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 [2019-02-14 16:41:19,446 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 [2019-02-14 16:41:19,447 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 [2019-02-14 16:41:19,448 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 [2019-02-14 16:41:19,448 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 [2019-02-14 16:41:19,449 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 [2019-02-14 16:41:19,450 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 [2019-02-14 16:41:19,451 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 [2019-02-14 16:41:19,452 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 [2019-02-14 16:41:19,453 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 [2019-02-14 16:41:19,454 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 [2019-02-14 16:41:19,455 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 [2019-02-14 16:41:19,455 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 [2019-02-14 16:41:19,456 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 [2019-02-14 16:41:19,457 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 [2019-02-14 16:41:19,458 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 [2019-02-14 16:41:19,459 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 [2019-02-14 16:41:19,460 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 [2019-02-14 16:41:19,461 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 [2019-02-14 16:41:19,462 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 [2019-02-14 16:41:19,463 INFO L273 TraceCheckUtils]: 72: Hoare triple {16906#(and (<= 36 main_n) (<= main_i 144))} assume !(i <= n * 4); {16868#false} is VALID [2019-02-14 16:41:19,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 1260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:41:19,488 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:41:19,488 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:41:19,488 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:41:19,488 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:41:19,488 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:41:19,488 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 [2019-02-14 16:41:19,497 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:41:19,497 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:41:19,562 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 36 check-sat command(s) [2019-02-14 16:41:19,562 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:41:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:41:19,583 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:41:19,591 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 [2019-02-14 16:41:19,593 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:41:19,600 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:41:19,600 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:41:19,601 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:41:19,601 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_39]. (and (= (store v_main_a_39 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:41:19,601 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:41:21,764 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 [2019-02-14 16:41:21,767 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:41:21,777 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:41:21,777 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:41:21,779 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:41:21,779 WARN L398 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))) [2019-02-14 16:41:21,779 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 140 .cse0) (not (= 140 .cse0)) (<= main_i 144))) [2019-02-14 16:41:21,823 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 [2019-02-14 16:41:21,824 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 [2019-02-14 16:41:21,824 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 [2019-02-14 16:41:21,825 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 [2019-02-14 16:41:21,825 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 [2019-02-14 16:41:21,826 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 [2019-02-14 16:41:21,826 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 [2019-02-14 16:41:21,827 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 [2019-02-14 16:41:21,827 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 [2019-02-14 16:41:21,828 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 [2019-02-14 16:41:21,829 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 [2019-02-14 16:41:21,829 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 [2019-02-14 16:41:21,830 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 [2019-02-14 16:41:21,831 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 [2019-02-14 16:41:21,831 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 [2019-02-14 16:41:21,832 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 [2019-02-14 16:41:21,833 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 [2019-02-14 16:41:21,833 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 [2019-02-14 16:41:21,834 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 [2019-02-14 16:41:21,835 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 [2019-02-14 16:41:21,835 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 [2019-02-14 16:41:21,836 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 [2019-02-14 16:41:21,837 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 [2019-02-14 16:41:21,837 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 [2019-02-14 16:41:21,838 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 [2019-02-14 16:41:21,839 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 [2019-02-14 16:41:21,839 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 [2019-02-14 16:41:21,840 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 [2019-02-14 16:41:21,841 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 [2019-02-14 16:41:21,841 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 [2019-02-14 16:41:21,842 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 [2019-02-14 16:41:21,843 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 [2019-02-14 16:41:21,843 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 [2019-02-14 16:41:21,844 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 [2019-02-14 16:41:21,845 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 [2019-02-14 16:41:21,845 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 [2019-02-14 16:41:21,846 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 [2019-02-14 16:41:21,847 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 [2019-02-14 16:41:21,847 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 [2019-02-14 16:41:21,848 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 [2019-02-14 16:41:21,849 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 [2019-02-14 16:41:21,850 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 [2019-02-14 16:41:21,851 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 [2019-02-14 16:41:21,852 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 [2019-02-14 16:41:21,853 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 [2019-02-14 16:41:21,853 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 [2019-02-14 16:41:21,854 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 [2019-02-14 16:41:21,855 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 [2019-02-14 16:41:21,855 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 [2019-02-14 16:41:21,856 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 [2019-02-14 16:41:21,857 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 [2019-02-14 16:41:21,857 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 [2019-02-14 16:41:21,858 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 [2019-02-14 16:41:21,859 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 [2019-02-14 16:41:21,859 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 [2019-02-14 16:41:21,860 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 [2019-02-14 16:41:21,861 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 [2019-02-14 16:41:21,861 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 [2019-02-14 16:41:21,862 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 [2019-02-14 16:41:21,863 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 [2019-02-14 16:41:21,864 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 [2019-02-14 16:41:21,864 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 [2019-02-14 16:41:21,865 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 [2019-02-14 16:41:21,866 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 [2019-02-14 16:41:21,867 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 [2019-02-14 16:41:21,867 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 [2019-02-14 16:41:21,868 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 [2019-02-14 16:41:21,869 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 [2019-02-14 16:41:21,869 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 [2019-02-14 16:41:21,870 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 [2019-02-14 16:41:21,871 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 [2019-02-14 16:41:21,872 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 [2019-02-14 16:41:21,873 INFO L273 TraceCheckUtils]: 72: Hoare triple {16906#(and (<= 36 main_n) (<= main_i 144))} assume !(i <= n * 4); {16868#false} is VALID [2019-02-14 16:41:21,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 1260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:41:21,887 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:41:25,978 INFO L273 TraceCheckUtils]: 72: Hoare triple {17163#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {16868#false} is VALID [2019-02-14 16:41:25,978 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 [2019-02-14 16:41:25,979 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 [2019-02-14 16:41:25,980 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 [2019-02-14 16:41:25,980 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 [2019-02-14 16:41:25,981 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 [2019-02-14 16:41:25,981 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 [2019-02-14 16:41:25,982 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 [2019-02-14 16:41:25,983 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 [2019-02-14 16:41:25,984 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 [2019-02-14 16:41:25,984 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 [2019-02-14 16:41:25,985 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 [2019-02-14 16:41:25,986 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 [2019-02-14 16:41:25,987 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 [2019-02-14 16:41:25,988 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 [2019-02-14 16:41:25,989 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 [2019-02-14 16:41:25,989 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 [2019-02-14 16:41:25,991 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 [2019-02-14 16:41:25,991 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 [2019-02-14 16:41:25,992 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 [2019-02-14 16:41:25,993 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 [2019-02-14 16:41:25,994 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 [2019-02-14 16:41:25,995 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 [2019-02-14 16:41:25,996 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 [2019-02-14 16:41:25,996 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 [2019-02-14 16:41:25,997 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 [2019-02-14 16:41:25,998 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 [2019-02-14 16:41:25,999 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 [2019-02-14 16:41:26,000 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 [2019-02-14 16:41:26,001 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 [2019-02-14 16:41:26,001 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 [2019-02-14 16:41:26,002 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 [2019-02-14 16:41:26,003 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 [2019-02-14 16:41:26,004 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 [2019-02-14 16:41:26,005 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 [2019-02-14 16:41:26,006 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 [2019-02-14 16:41:26,006 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 [2019-02-14 16:41:26,007 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 [2019-02-14 16:41:26,008 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 [2019-02-14 16:41:26,009 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 [2019-02-14 16:41:26,010 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 [2019-02-14 16:41:26,011 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 [2019-02-14 16:41:26,011 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 [2019-02-14 16:41:26,012 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 [2019-02-14 16:41:26,013 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 [2019-02-14 16:41:26,014 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 [2019-02-14 16:41:26,015 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 [2019-02-14 16:41:26,016 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 [2019-02-14 16:41:26,016 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 [2019-02-14 16:41:26,018 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 [2019-02-14 16:41:26,018 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 [2019-02-14 16:41:26,019 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 [2019-02-14 16:41:26,020 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 [2019-02-14 16:41:26,021 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 [2019-02-14 16:41:26,022 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 [2019-02-14 16:41:26,023 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 [2019-02-14 16:41:26,023 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 [2019-02-14 16:41:26,024 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 [2019-02-14 16:41:26,025 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 [2019-02-14 16:41:26,026 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 [2019-02-14 16:41:26,027 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 [2019-02-14 16:41:26,028 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 [2019-02-14 16:41:26,028 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 [2019-02-14 16:41:26,030 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 [2019-02-14 16:41:26,030 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 [2019-02-14 16:41:26,031 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 [2019-02-14 16:41:26,032 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 [2019-02-14 16:41:26,033 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 [2019-02-14 16:41:26,034 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 [2019-02-14 16:41:26,035 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 [2019-02-14 16:41:26,035 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 [2019-02-14 16:41:26,036 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 [2019-02-14 16:41:26,037 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 [2019-02-14 16:41:26,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 1260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:41:26,077 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:41:26,078 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 113 [2019-02-14 16:41:26,078 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:41:26,078 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 73 [2019-02-14 16:41:26,078 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:41:26,078 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 77 states. [2019-02-14 16:41:26,259 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 145 edges. 145 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:41:26,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 77 states [2019-02-14 16:41:26,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2019-02-14 16:41:26,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1642, Invalid=11468, Unknown=0, NotChecked=0, Total=13110 [2019-02-14 16:41:26,260 INFO L87 Difference]: Start difference. First operand 74 states and 74 transitions. Second operand 77 states. [2019-02-14 16:41:36,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:41:36,479 INFO L93 Difference]: Finished difference Result 78 states and 78 transitions. [2019-02-14 16:41:36,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-02-14 16:41:36,479 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 73 [2019-02-14 16:41:36,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:41:36,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-02-14 16:41:36,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 78 transitions. [2019-02-14 16:41:36,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-02-14 16:41:36,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 78 transitions. [2019-02-14 16:41:36,481 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 40 states and 78 transitions. [2019-02-14 16:41:36,563 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 78 edges. 78 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:41:36,564 INFO L225 Difference]: With dead ends: 78 [2019-02-14 16:41:36,564 INFO L226 Difference]: Without dead ends: 77 [2019-02-14 16:41:36,565 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2960 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=1642, Invalid=11468, Unknown=0, NotChecked=0, Total=13110 [2019-02-14 16:41:36,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-02-14 16:41:36,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2019-02-14 16:41:36,635 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:41:36,635 INFO L82 GeneralOperation]: Start isEquivalent. First operand 77 states. Second operand 76 states. [2019-02-14 16:41:36,636 INFO L74 IsIncluded]: Start isIncluded. First operand 77 states. Second operand 76 states. [2019-02-14 16:41:36,636 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 76 states. [2019-02-14 16:41:36,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:41:36,637 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2019-02-14 16:41:36,637 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2019-02-14 16:41:36,637 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:41:36,638 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:41:36,638 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 77 states. [2019-02-14 16:41:36,638 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 77 states. [2019-02-14 16:41:36,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:41:36,638 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2019-02-14 16:41:36,639 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2019-02-14 16:41:36,639 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:41:36,639 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:41:36,639 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:41:36,639 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:41:36,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-02-14 16:41:36,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2019-02-14 16:41:36,640 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 73 [2019-02-14 16:41:36,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:41:36,641 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2019-02-14 16:41:36,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has 77 states. [2019-02-14 16:41:36,641 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2019-02-14 16:41:36,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-02-14 16:41:36,641 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:41:36,641 INFO L402 BasicCegarLoop]: trace histogram [37, 36, 1, 1] [2019-02-14 16:41:36,642 INFO L423 AbstractCegarLoop]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:41:36,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:41:36,642 INFO L82 PathProgramCache]: Analyzing trace with hash 286704424, now seen corresponding path program 36 times [2019-02-14 16:41:36,642 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:41:36,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:41:36,643 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:41:36,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:41:36,643 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:41:36,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:41:38,689 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 [2019-02-14 16:41:38,690 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 [2019-02-14 16:41:38,691 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 [2019-02-14 16:41:38,692 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 [2019-02-14 16:41:38,692 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 [2019-02-14 16:41:38,693 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 [2019-02-14 16:41:38,694 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 [2019-02-14 16:41:38,695 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 [2019-02-14 16:41:38,696 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 [2019-02-14 16:41:38,697 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 [2019-02-14 16:41:38,698 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 [2019-02-14 16:41:38,699 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 [2019-02-14 16:41:38,700 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 [2019-02-14 16:41:38,701 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 [2019-02-14 16:41:38,701 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 [2019-02-14 16:41:38,702 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 [2019-02-14 16:41:38,703 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 [2019-02-14 16:41:38,704 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 [2019-02-14 16:41:38,705 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 [2019-02-14 16:41:38,706 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 [2019-02-14 16:41:38,707 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 [2019-02-14 16:41:38,708 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 [2019-02-14 16:41:38,708 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 [2019-02-14 16:41:38,710 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 [2019-02-14 16:41:38,710 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 [2019-02-14 16:41:38,711 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 [2019-02-14 16:41:38,712 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 [2019-02-14 16:41:38,713 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 [2019-02-14 16:41:38,714 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 [2019-02-14 16:41:38,715 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 [2019-02-14 16:41:38,716 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 [2019-02-14 16:41:38,717 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 [2019-02-14 16:41:38,717 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 [2019-02-14 16:41:38,718 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 [2019-02-14 16:41:38,719 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 [2019-02-14 16:41:38,720 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 [2019-02-14 16:41:38,721 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 [2019-02-14 16:41:38,722 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 [2019-02-14 16:41:38,723 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 [2019-02-14 16:41:38,724 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 [2019-02-14 16:41:38,725 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 [2019-02-14 16:41:38,726 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 [2019-02-14 16:41:38,726 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 [2019-02-14 16:41:38,727 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 [2019-02-14 16:41:38,728 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 [2019-02-14 16:41:38,729 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 [2019-02-14 16:41:38,730 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 [2019-02-14 16:41:38,731 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 [2019-02-14 16:41:38,732 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 [2019-02-14 16:41:38,733 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 [2019-02-14 16:41:38,734 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 [2019-02-14 16:41:38,735 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 [2019-02-14 16:41:38,735 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 [2019-02-14 16:41:38,736 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 [2019-02-14 16:41:38,737 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 [2019-02-14 16:41:38,738 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 [2019-02-14 16:41:38,739 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 [2019-02-14 16:41:38,740 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 [2019-02-14 16:41:38,741 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 [2019-02-14 16:41:38,742 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 [2019-02-14 16:41:38,743 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 [2019-02-14 16:41:38,744 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 [2019-02-14 16:41:38,744 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 [2019-02-14 16:41:38,745 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 [2019-02-14 16:41:38,746 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 [2019-02-14 16:41:38,747 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 [2019-02-14 16:41:38,748 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 [2019-02-14 16:41:38,749 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 [2019-02-14 16:41:38,750 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 [2019-02-14 16:41:38,751 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 [2019-02-14 16:41:38,751 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 [2019-02-14 16:41:38,753 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 [2019-02-14 16:41:38,754 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 [2019-02-14 16:41:38,755 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 [2019-02-14 16:41:38,755 INFO L273 TraceCheckUtils]: 74: Hoare triple {17839#(and (< 36 main_n) (<= main_i 148))} assume !(i <= n * 4); {17800#false} is VALID [2019-02-14 16:41:38,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 0 proven. 1332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:41:38,783 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:41:38,783 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:41:38,783 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:41:38,783 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:41:38,783 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:41:38,783 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 [2019-02-14 16:41:38,791 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:41:38,792 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:41:38,838 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:41:38,838 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:41:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:41:38,863 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:41:38,871 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 [2019-02-14 16:41:38,872 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:41:38,876 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:41:38,876 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:41:38,879 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:41:38,879 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_40]. (and (= (store v_main_a_40 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:41:38,879 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:41:41,418 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 [2019-02-14 16:41:41,420 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:41:41,426 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:41:41,426 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:41:41,428 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:41:41,429 WARN L398 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))) [2019-02-14 16:41:41,429 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 144 .cse0)) (<= 144 .cse0) (<= main_i 148))) [2019-02-14 16:41:41,478 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 [2019-02-14 16:41:41,479 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 [2019-02-14 16:41:41,479 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 [2019-02-14 16:41:41,479 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 [2019-02-14 16:41:41,480 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 [2019-02-14 16:41:41,481 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 [2019-02-14 16:41:41,481 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 [2019-02-14 16:41:41,482 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 [2019-02-14 16:41:41,483 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 [2019-02-14 16:41:41,484 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 [2019-02-14 16:41:41,484 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 [2019-02-14 16:41:41,485 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 [2019-02-14 16:41:41,486 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 [2019-02-14 16:41:41,486 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 [2019-02-14 16:41:41,487 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 [2019-02-14 16:41:41,488 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 [2019-02-14 16:41:41,488 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 [2019-02-14 16:41:41,489 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 [2019-02-14 16:41:41,490 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 [2019-02-14 16:41:41,490 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 [2019-02-14 16:41:41,491 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 [2019-02-14 16:41:41,492 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 [2019-02-14 16:41:41,492 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 [2019-02-14 16:41:41,493 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 [2019-02-14 16:41:41,494 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 [2019-02-14 16:41:41,494 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 [2019-02-14 16:41:41,495 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 [2019-02-14 16:41:41,496 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 [2019-02-14 16:41:41,496 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 [2019-02-14 16:41:41,497 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 [2019-02-14 16:41:41,498 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 [2019-02-14 16:41:41,498 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 [2019-02-14 16:41:41,499 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 [2019-02-14 16:41:41,500 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 [2019-02-14 16:41:41,500 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 [2019-02-14 16:41:41,501 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 [2019-02-14 16:41:41,502 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 [2019-02-14 16:41:41,502 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 [2019-02-14 16:41:41,503 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 [2019-02-14 16:41:41,504 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 [2019-02-14 16:41:41,504 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 [2019-02-14 16:41:41,505 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 [2019-02-14 16:41:41,506 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 [2019-02-14 16:41:41,507 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 [2019-02-14 16:41:41,507 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 [2019-02-14 16:41:41,508 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 [2019-02-14 16:41:41,509 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 [2019-02-14 16:41:41,509 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 [2019-02-14 16:41:41,510 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 [2019-02-14 16:41:41,511 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 [2019-02-14 16:41:41,511 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 [2019-02-14 16:41:41,512 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 [2019-02-14 16:41:41,513 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 [2019-02-14 16:41:41,513 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 [2019-02-14 16:41:41,514 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 [2019-02-14 16:41:41,515 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 [2019-02-14 16:41:41,515 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 [2019-02-14 16:41:41,516 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 [2019-02-14 16:41:41,517 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 [2019-02-14 16:41:41,518 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 [2019-02-14 16:41:41,518 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 [2019-02-14 16:41:41,519 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 [2019-02-14 16:41:41,520 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 [2019-02-14 16:41:41,520 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 [2019-02-14 16:41:41,521 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 [2019-02-14 16:41:41,522 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 [2019-02-14 16:41:41,522 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 [2019-02-14 16:41:41,523 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 [2019-02-14 16:41:41,524 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 [2019-02-14 16:41:41,525 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 [2019-02-14 16:41:41,525 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 [2019-02-14 16:41:41,526 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 [2019-02-14 16:41:41,527 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 [2019-02-14 16:41:41,528 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 [2019-02-14 16:41:41,528 INFO L273 TraceCheckUtils]: 74: Hoare triple {17839#(and (< 36 main_n) (<= main_i 148))} assume !(i <= n * 4); {17800#false} is VALID [2019-02-14 16:41:41,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 0 proven. 1332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:41:41,542 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:41:45,585 INFO L273 TraceCheckUtils]: 74: Hoare triple {18103#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {17800#false} is VALID [2019-02-14 16:41:45,587 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 [2019-02-14 16:41:45,587 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 [2019-02-14 16:41:45,588 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 [2019-02-14 16:41:45,589 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 [2019-02-14 16:41:45,590 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 [2019-02-14 16:41:45,591 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 [2019-02-14 16:41:45,592 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 [2019-02-14 16:41:45,592 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 [2019-02-14 16:41:45,593 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 [2019-02-14 16:41:45,594 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 [2019-02-14 16:41:45,595 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 [2019-02-14 16:41:45,595 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 [2019-02-14 16:41:45,596 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 [2019-02-14 16:41:45,597 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 [2019-02-14 16:41:45,598 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 [2019-02-14 16:41:45,598 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 [2019-02-14 16:41:45,600 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 [2019-02-14 16:41:45,600 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 [2019-02-14 16:41:45,601 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 [2019-02-14 16:41:45,602 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 [2019-02-14 16:41:45,603 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 [2019-02-14 16:41:45,603 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 [2019-02-14 16:41:45,604 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 [2019-02-14 16:41:45,605 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 [2019-02-14 16:41:45,606 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 [2019-02-14 16:41:45,607 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 [2019-02-14 16:41:45,608 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 [2019-02-14 16:41:45,608 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 [2019-02-14 16:41:45,609 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 [2019-02-14 16:41:45,610 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 [2019-02-14 16:41:45,611 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 [2019-02-14 16:41:45,612 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 [2019-02-14 16:41:45,613 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 [2019-02-14 16:41:45,613 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 [2019-02-14 16:41:45,614 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 [2019-02-14 16:41:45,615 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 [2019-02-14 16:41:45,616 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 [2019-02-14 16:41:45,616 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 [2019-02-14 16:41:45,617 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 [2019-02-14 16:41:45,618 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 [2019-02-14 16:41:45,619 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 [2019-02-14 16:41:45,620 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 [2019-02-14 16:41:45,621 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 [2019-02-14 16:41:45,621 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 [2019-02-14 16:41:45,622 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 [2019-02-14 16:41:45,623 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 [2019-02-14 16:41:45,624 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 [2019-02-14 16:41:45,624 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 [2019-02-14 16:41:45,625 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 [2019-02-14 16:41:45,626 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 [2019-02-14 16:41:45,627 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 [2019-02-14 16:41:45,627 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 [2019-02-14 16:41:45,629 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 [2019-02-14 16:41:45,629 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 [2019-02-14 16:41:45,630 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 [2019-02-14 16:41:45,631 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 [2019-02-14 16:41:45,632 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 [2019-02-14 16:41:45,632 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 [2019-02-14 16:41:45,633 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 [2019-02-14 16:41:45,634 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 [2019-02-14 16:41:45,639 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 [2019-02-14 16:41:45,640 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 [2019-02-14 16:41:45,640 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 [2019-02-14 16:41:45,641 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 [2019-02-14 16:41:45,641 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 [2019-02-14 16:41:45,642 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 [2019-02-14 16:41:45,643 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 [2019-02-14 16:41:45,643 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 [2019-02-14 16:41:45,644 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 [2019-02-14 16:41:45,645 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 [2019-02-14 16:41:45,646 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 [2019-02-14 16:41:45,646 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 [2019-02-14 16:41:45,647 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 [2019-02-14 16:41:45,648 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 [2019-02-14 16:41:45,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 0 proven. 1332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:41:45,689 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:41:45,689 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39, 39] total 116 [2019-02-14 16:41:45,689 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:41:45,689 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 75 [2019-02-14 16:41:45,690 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:41:45,690 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 79 states. [2019-02-14 16:41:45,890 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 149 edges. 149 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:41:45,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 79 states [2019-02-14 16:41:45,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2019-02-14 16:41:45,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1724, Invalid=12082, Unknown=0, NotChecked=0, Total=13806 [2019-02-14 16:41:45,891 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand 79 states. [2019-02-14 16:41:54,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:41:54,005 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2019-02-14 16:41:54,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2019-02-14 16:41:54,006 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 75 [2019-02-14 16:41:54,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:41:54,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-02-14 16:41:54,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 80 transitions. [2019-02-14 16:41:54,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-02-14 16:41:54,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 80 transitions. [2019-02-14 16:41:54,008 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 41 states and 80 transitions. [2019-02-14 16:41:54,093 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 80 edges. 80 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:41:54,094 INFO L225 Difference]: With dead ends: 80 [2019-02-14 16:41:54,094 INFO L226 Difference]: Without dead ends: 79 [2019-02-14 16:41:54,095 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3116 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=1724, Invalid=12082, Unknown=0, NotChecked=0, Total=13806 [2019-02-14 16:41:54,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-02-14 16:41:54,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2019-02-14 16:41:54,170 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:41:54,170 INFO L82 GeneralOperation]: Start isEquivalent. First operand 79 states. Second operand 78 states. [2019-02-14 16:41:54,170 INFO L74 IsIncluded]: Start isIncluded. First operand 79 states. Second operand 78 states. [2019-02-14 16:41:54,170 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 78 states. [2019-02-14 16:41:54,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:41:54,172 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2019-02-14 16:41:54,172 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2019-02-14 16:41:54,172 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:41:54,172 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:41:54,172 INFO L74 IsIncluded]: Start isIncluded. First operand 78 states. Second operand 79 states. [2019-02-14 16:41:54,172 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 79 states. [2019-02-14 16:41:54,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:41:54,173 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2019-02-14 16:41:54,173 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2019-02-14 16:41:54,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:41:54,174 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:41:54,174 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:41:54,174 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:41:54,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-02-14 16:41:54,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2019-02-14 16:41:54,175 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 75 [2019-02-14 16:41:54,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:41:54,175 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2019-02-14 16:41:54,176 INFO L481 AbstractCegarLoop]: Interpolant automaton has 79 states. [2019-02-14 16:41:54,176 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2019-02-14 16:41:54,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-02-14 16:41:54,176 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:41:54,176 INFO L402 BasicCegarLoop]: trace histogram [38, 37, 1, 1] [2019-02-14 16:41:54,176 INFO L423 AbstractCegarLoop]: === Iteration 38 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:41:54,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:41:54,177 INFO L82 PathProgramCache]: Analyzing trace with hash 645045610, now seen corresponding path program 37 times [2019-02-14 16:41:54,177 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:41:54,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:41:54,178 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:41:54,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:41:54,178 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:41:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:41:56,454 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 [2019-02-14 16:41:56,456 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 [2019-02-14 16:41:56,456 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 [2019-02-14 16:41:56,458 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 [2019-02-14 16:41:56,458 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 [2019-02-14 16:41:56,459 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 [2019-02-14 16:41:56,460 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 [2019-02-14 16:41:56,461 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 [2019-02-14 16:41:56,462 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 [2019-02-14 16:41:56,463 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 [2019-02-14 16:41:56,464 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 [2019-02-14 16:41:56,465 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 [2019-02-14 16:41:56,465 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 [2019-02-14 16:41:56,466 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 [2019-02-14 16:41:56,467 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 [2019-02-14 16:41:56,468 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 [2019-02-14 16:41:56,469 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 [2019-02-14 16:41:56,470 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 [2019-02-14 16:41:56,471 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 [2019-02-14 16:41:56,472 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 [2019-02-14 16:41:56,472 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 [2019-02-14 16:41:56,473 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 [2019-02-14 16:41:56,474 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 [2019-02-14 16:41:56,475 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 [2019-02-14 16:41:56,476 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 [2019-02-14 16:41:56,477 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 [2019-02-14 16:41:56,478 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 [2019-02-14 16:41:56,479 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 [2019-02-14 16:41:56,480 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 [2019-02-14 16:41:56,481 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 [2019-02-14 16:41:56,481 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 [2019-02-14 16:41:56,482 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 [2019-02-14 16:41:56,483 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 [2019-02-14 16:41:56,484 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 [2019-02-14 16:41:56,485 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 [2019-02-14 16:41:56,486 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 [2019-02-14 16:41:56,487 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 [2019-02-14 16:41:56,488 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 [2019-02-14 16:41:56,489 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 [2019-02-14 16:41:56,490 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 [2019-02-14 16:41:56,490 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 [2019-02-14 16:41:56,491 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 [2019-02-14 16:41:56,492 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 [2019-02-14 16:41:56,493 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 [2019-02-14 16:41:56,494 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 [2019-02-14 16:41:56,495 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 [2019-02-14 16:41:56,496 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 [2019-02-14 16:41:56,497 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 [2019-02-14 16:41:56,497 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 [2019-02-14 16:41:56,498 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 [2019-02-14 16:41:56,499 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 [2019-02-14 16:41:56,500 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 [2019-02-14 16:41:56,501 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 [2019-02-14 16:41:56,502 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 [2019-02-14 16:41:56,503 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 [2019-02-14 16:41:56,504 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 [2019-02-14 16:41:56,505 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 [2019-02-14 16:41:56,506 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 [2019-02-14 16:41:56,506 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 [2019-02-14 16:41:56,507 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 [2019-02-14 16:41:56,508 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 [2019-02-14 16:41:56,509 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 [2019-02-14 16:41:56,510 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 [2019-02-14 16:41:56,511 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 [2019-02-14 16:41:56,512 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 [2019-02-14 16:41:56,513 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 [2019-02-14 16:41:56,513 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 [2019-02-14 16:41:56,514 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 [2019-02-14 16:41:56,515 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 [2019-02-14 16:41:56,516 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 [2019-02-14 16:41:56,517 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 [2019-02-14 16:41:56,518 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 [2019-02-14 16:41:56,519 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 [2019-02-14 16:41:56,520 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 [2019-02-14 16:41:56,521 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 [2019-02-14 16:41:56,522 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 [2019-02-14 16:41:56,523 INFO L273 TraceCheckUtils]: 76: Hoare triple {18797#(and (<= 38 main_n) (<= main_i 152))} assume !(i <= n * 4); {18757#false} is VALID [2019-02-14 16:41:56,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:41:56,549 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:41:56,550 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:41:56,550 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:41:56,550 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:41:56,550 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:41:56,550 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 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 [2019-02-14 16:41:56,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:41:56,559 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:41:56,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:41:56,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:41:56,591 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:41:56,628 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 [2019-02-14 16:41:56,629 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:41:56,635 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:41:56,635 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:41:56,637 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:41:56,637 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_41]. (and (= (store v_main_a_41 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:41:56,637 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:41:59,031 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 [2019-02-14 16:41:59,033 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:41:59,040 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:41:59,040 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:41:59,043 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:41:59,043 WARN L398 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))) [2019-02-14 16:41:59,043 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 148 .cse0) (not (= 148 .cse0)) (<= main_i 152))) [2019-02-14 16:41:59,092 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 [2019-02-14 16:41:59,093 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 [2019-02-14 16:41:59,093 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 [2019-02-14 16:41:59,094 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 [2019-02-14 16:41:59,094 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 [2019-02-14 16:41:59,095 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 [2019-02-14 16:41:59,096 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 [2019-02-14 16:41:59,096 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 [2019-02-14 16:41:59,097 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 [2019-02-14 16:41:59,098 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 [2019-02-14 16:41:59,098 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 [2019-02-14 16:41:59,099 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 [2019-02-14 16:41:59,100 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 [2019-02-14 16:41:59,101 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 [2019-02-14 16:41:59,101 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 [2019-02-14 16:41:59,102 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 [2019-02-14 16:41:59,103 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 [2019-02-14 16:41:59,104 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 [2019-02-14 16:41:59,104 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 [2019-02-14 16:41:59,105 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 [2019-02-14 16:41:59,106 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 [2019-02-14 16:41:59,106 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 [2019-02-14 16:41:59,107 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 [2019-02-14 16:41:59,108 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 [2019-02-14 16:41:59,109 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 [2019-02-14 16:41:59,109 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 [2019-02-14 16:41:59,110 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 [2019-02-14 16:41:59,111 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 [2019-02-14 16:41:59,111 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 [2019-02-14 16:41:59,112 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 [2019-02-14 16:41:59,113 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 [2019-02-14 16:41:59,114 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 [2019-02-14 16:41:59,114 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 [2019-02-14 16:41:59,115 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 [2019-02-14 16:41:59,116 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 [2019-02-14 16:41:59,117 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 [2019-02-14 16:41:59,117 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 [2019-02-14 16:41:59,118 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 [2019-02-14 16:41:59,119 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 [2019-02-14 16:41:59,120 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 [2019-02-14 16:41:59,120 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 [2019-02-14 16:41:59,121 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 [2019-02-14 16:41:59,122 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 [2019-02-14 16:41:59,123 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 [2019-02-14 16:41:59,123 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 [2019-02-14 16:41:59,124 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 [2019-02-14 16:41:59,125 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 [2019-02-14 16:41:59,126 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 [2019-02-14 16:41:59,126 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 [2019-02-14 16:41:59,127 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 [2019-02-14 16:41:59,128 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 [2019-02-14 16:41:59,128 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 [2019-02-14 16:41:59,129 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 [2019-02-14 16:41:59,130 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 [2019-02-14 16:41:59,131 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 [2019-02-14 16:41:59,131 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 [2019-02-14 16:41:59,132 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 [2019-02-14 16:41:59,133 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 [2019-02-14 16:41:59,134 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 [2019-02-14 16:41:59,134 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 [2019-02-14 16:41:59,135 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 [2019-02-14 16:41:59,136 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 [2019-02-14 16:41:59,136 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 [2019-02-14 16:41:59,137 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 [2019-02-14 16:41:59,138 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 [2019-02-14 16:41:59,139 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 [2019-02-14 16:41:59,139 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 [2019-02-14 16:41:59,140 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 [2019-02-14 16:41:59,141 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 [2019-02-14 16:41:59,142 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 [2019-02-14 16:41:59,142 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 [2019-02-14 16:41:59,143 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 [2019-02-14 16:41:59,144 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 [2019-02-14 16:41:59,145 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 [2019-02-14 16:41:59,145 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 [2019-02-14 16:41:59,146 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 [2019-02-14 16:41:59,147 INFO L273 TraceCheckUtils]: 76: Hoare triple {18797#(and (<= 38 main_n) (<= main_i 152))} assume !(i <= n * 4); {18757#false} is VALID [2019-02-14 16:41:59,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:41:59,162 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:42:03,615 INFO L273 TraceCheckUtils]: 76: Hoare triple {19068#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {18757#false} is VALID [2019-02-14 16:42:03,617 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 [2019-02-14 16:42:03,617 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 [2019-02-14 16:42:03,618 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 [2019-02-14 16:42:03,618 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 [2019-02-14 16:42:03,619 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 [2019-02-14 16:42:03,619 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 [2019-02-14 16:42:03,620 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 [2019-02-14 16:42:03,621 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 [2019-02-14 16:42:03,622 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 [2019-02-14 16:42:03,622 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 [2019-02-14 16:42:03,623 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 [2019-02-14 16:42:03,624 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 [2019-02-14 16:42:03,625 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 [2019-02-14 16:42:03,626 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 [2019-02-14 16:42:03,627 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 [2019-02-14 16:42:03,627 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 [2019-02-14 16:42:03,628 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 [2019-02-14 16:42:03,629 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 [2019-02-14 16:42:03,630 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 [2019-02-14 16:42:03,630 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 [2019-02-14 16:42:03,631 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 [2019-02-14 16:42:03,632 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 [2019-02-14 16:42:03,633 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 [2019-02-14 16:42:03,634 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 [2019-02-14 16:42:03,635 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 [2019-02-14 16:42:03,635 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 [2019-02-14 16:42:03,636 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 [2019-02-14 16:42:03,637 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 [2019-02-14 16:42:03,638 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 [2019-02-14 16:42:03,638 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 [2019-02-14 16:42:03,639 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 [2019-02-14 16:42:03,640 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 [2019-02-14 16:42:03,641 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 [2019-02-14 16:42:03,641 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 [2019-02-14 16:42:03,642 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 [2019-02-14 16:42:03,643 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 [2019-02-14 16:42:03,644 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 [2019-02-14 16:42:03,645 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 [2019-02-14 16:42:03,646 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 [2019-02-14 16:42:03,646 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 [2019-02-14 16:42:03,647 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 [2019-02-14 16:42:03,648 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 [2019-02-14 16:42:03,649 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 [2019-02-14 16:42:03,649 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 [2019-02-14 16:42:03,650 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 [2019-02-14 16:42:03,651 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 [2019-02-14 16:42:03,652 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 [2019-02-14 16:42:03,652 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 [2019-02-14 16:42:03,653 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 [2019-02-14 16:42:03,654 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 [2019-02-14 16:42:03,658 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 [2019-02-14 16:42:03,658 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 [2019-02-14 16:42:03,659 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 [2019-02-14 16:42:03,659 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 [2019-02-14 16:42:03,660 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 [2019-02-14 16:42:03,660 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 [2019-02-14 16:42:03,661 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 [2019-02-14 16:42:03,661 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 [2019-02-14 16:42:03,662 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 [2019-02-14 16:42:03,663 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 [2019-02-14 16:42:03,664 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 [2019-02-14 16:42:03,664 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 [2019-02-14 16:42:03,665 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 [2019-02-14 16:42:03,666 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 [2019-02-14 16:42:03,667 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 [2019-02-14 16:42:03,667 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 [2019-02-14 16:42:03,669 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 [2019-02-14 16:42:03,669 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 [2019-02-14 16:42:03,670 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 [2019-02-14 16:42:03,671 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 [2019-02-14 16:42:03,672 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 [2019-02-14 16:42:03,672 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 [2019-02-14 16:42:03,673 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 [2019-02-14 16:42:03,674 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 [2019-02-14 16:42:03,675 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 [2019-02-14 16:42:03,676 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 [2019-02-14 16:42:03,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:42:03,720 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:42:03,721 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 119 [2019-02-14 16:42:03,721 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:42:03,721 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 77 [2019-02-14 16:42:03,721 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:42:03,721 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 81 states. [2019-02-14 16:42:03,902 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 153 edges. 153 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:42:03,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 81 states [2019-02-14 16:42:03,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2019-02-14 16:42:03,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1808, Invalid=12712, Unknown=0, NotChecked=0, Total=14520 [2019-02-14 16:42:03,903 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand 81 states. [2019-02-14 16:42:15,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:42:15,086 INFO L93 Difference]: Finished difference Result 82 states and 82 transitions. [2019-02-14 16:42:15,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-02-14 16:42:15,086 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 77 [2019-02-14 16:42:15,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:42:15,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-02-14 16:42:15,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 82 transitions. [2019-02-14 16:42:15,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-02-14 16:42:15,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 82 transitions. [2019-02-14 16:42:15,089 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 42 states and 82 transitions. [2019-02-14 16:42:15,220 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 82 edges. 82 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:42:15,221 INFO L225 Difference]: With dead ends: 82 [2019-02-14 16:42:15,221 INFO L226 Difference]: Without dead ends: 81 [2019-02-14 16:42:15,222 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3276 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=1808, Invalid=12712, Unknown=0, NotChecked=0, Total=14520 [2019-02-14 16:42:15,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2019-02-14 16:42:15,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 80. [2019-02-14 16:42:15,302 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:42:15,302 INFO L82 GeneralOperation]: Start isEquivalent. First operand 81 states. Second operand 80 states. [2019-02-14 16:42:15,302 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 80 states. [2019-02-14 16:42:15,303 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 80 states. [2019-02-14 16:42:15,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:42:15,304 INFO L93 Difference]: Finished difference Result 81 states and 81 transitions. [2019-02-14 16:42:15,304 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2019-02-14 16:42:15,304 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:42:15,304 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:42:15,305 INFO L74 IsIncluded]: Start isIncluded. First operand 80 states. Second operand 81 states. [2019-02-14 16:42:15,305 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 81 states. [2019-02-14 16:42:15,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:42:15,306 INFO L93 Difference]: Finished difference Result 81 states and 81 transitions. [2019-02-14 16:42:15,306 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2019-02-14 16:42:15,306 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:42:15,306 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:42:15,306 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:42:15,306 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:42:15,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-02-14 16:42:15,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 80 transitions. [2019-02-14 16:42:15,308 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 80 transitions. Word has length 77 [2019-02-14 16:42:15,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:42:15,308 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 80 transitions. [2019-02-14 16:42:15,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has 81 states. [2019-02-14 16:42:15,308 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 80 transitions. [2019-02-14 16:42:15,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-02-14 16:42:15,308 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:42:15,309 INFO L402 BasicCegarLoop]: trace histogram [39, 38, 1, 1] [2019-02-14 16:42:15,309 INFO L423 AbstractCegarLoop]: === Iteration 39 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:42:15,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:42:15,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1413541676, now seen corresponding path program 38 times [2019-02-14 16:42:15,309 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:42:15,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:42:15,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:42:15,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:42:15,310 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:42:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:42:17,494 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 [2019-02-14 16:42:17,495 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 [2019-02-14 16:42:17,496 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 [2019-02-14 16:42:17,497 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 [2019-02-14 16:42:17,498 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 [2019-02-14 16:42:17,499 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 [2019-02-14 16:42:17,500 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 [2019-02-14 16:42:17,501 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 [2019-02-14 16:42:17,501 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 [2019-02-14 16:42:17,503 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 [2019-02-14 16:42:17,503 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 [2019-02-14 16:42:17,504 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 [2019-02-14 16:42:17,505 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 [2019-02-14 16:42:17,506 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 [2019-02-14 16:42:17,507 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 [2019-02-14 16:42:17,508 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 [2019-02-14 16:42:17,509 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 [2019-02-14 16:42:17,510 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 [2019-02-14 16:42:17,511 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 [2019-02-14 16:42:17,512 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 [2019-02-14 16:42:17,512 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 [2019-02-14 16:42:17,513 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 [2019-02-14 16:42:17,514 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 [2019-02-14 16:42:17,515 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 [2019-02-14 16:42:17,516 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 [2019-02-14 16:42:17,517 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 [2019-02-14 16:42:17,518 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 [2019-02-14 16:42:17,519 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 [2019-02-14 16:42:17,519 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 [2019-02-14 16:42:17,521 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 [2019-02-14 16:42:17,521 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 [2019-02-14 16:42:17,522 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 [2019-02-14 16:42:17,523 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 [2019-02-14 16:42:17,524 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 [2019-02-14 16:42:17,525 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 [2019-02-14 16:42:17,526 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 [2019-02-14 16:42:17,527 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 [2019-02-14 16:42:17,528 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 [2019-02-14 16:42:17,529 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 [2019-02-14 16:42:17,530 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 [2019-02-14 16:42:17,530 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 [2019-02-14 16:42:17,531 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 [2019-02-14 16:42:17,532 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 [2019-02-14 16:42:17,533 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 [2019-02-14 16:42:17,534 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 [2019-02-14 16:42:17,535 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 [2019-02-14 16:42:17,536 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 [2019-02-14 16:42:17,537 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 [2019-02-14 16:42:17,537 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 [2019-02-14 16:42:17,539 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 [2019-02-14 16:42:17,539 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 [2019-02-14 16:42:17,540 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 [2019-02-14 16:42:17,541 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 [2019-02-14 16:42:17,542 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 [2019-02-14 16:42:17,543 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 [2019-02-14 16:42:17,544 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 [2019-02-14 16:42:17,545 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 [2019-02-14 16:42:17,546 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 [2019-02-14 16:42:17,546 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 [2019-02-14 16:42:17,548 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 [2019-02-14 16:42:17,548 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 [2019-02-14 16:42:17,549 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 [2019-02-14 16:42:17,550 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 [2019-02-14 16:42:17,551 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 [2019-02-14 16:42:17,552 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 [2019-02-14 16:42:17,553 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 [2019-02-14 16:42:17,554 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 [2019-02-14 16:42:17,555 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 [2019-02-14 16:42:17,555 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 [2019-02-14 16:42:17,556 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 [2019-02-14 16:42:17,557 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 [2019-02-14 16:42:17,558 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 [2019-02-14 16:42:17,559 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 [2019-02-14 16:42:17,560 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 [2019-02-14 16:42:17,561 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 [2019-02-14 16:42:17,562 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 [2019-02-14 16:42:17,563 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 [2019-02-14 16:42:17,564 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 [2019-02-14 16:42:17,565 INFO L273 TraceCheckUtils]: 78: Hoare triple {19780#(and (<= main_i 156) (< 38 main_n))} assume !(i <= n * 4); {19739#false} is VALID [2019-02-14 16:42:17,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 1482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:42:17,595 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:42:17,595 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:42:17,595 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:42:17,595 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:42:17,595 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:42:17,595 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 [2019-02-14 16:42:17,604 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:42:17,604 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:42:17,656 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 39 check-sat command(s) [2019-02-14 16:42:17,656 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:42:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:42:17,671 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:42:17,708 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 [2019-02-14 16:42:17,710 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:42:17,719 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:42:17,719 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:42:17,721 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:42:17,721 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_42]. (and (= (store v_main_a_42 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:42:17,721 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:42:20,536 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 [2019-02-14 16:42:20,538 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:42:20,544 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:42:20,544 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:42:20,547 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:42:20,547 WARN L398 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)))) [2019-02-14 16:42:20,547 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 156) (<= 152 .cse0) (not (= 152 .cse0)))) [2019-02-14 16:42:20,601 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 [2019-02-14 16:42:20,601 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 [2019-02-14 16:42:20,602 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 [2019-02-14 16:42:20,602 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 [2019-02-14 16:42:20,603 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 [2019-02-14 16:42:20,603 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 [2019-02-14 16:42:20,603 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 [2019-02-14 16:42:20,604 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 [2019-02-14 16:42:20,605 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 [2019-02-14 16:42:20,606 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 [2019-02-14 16:42:20,606 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 [2019-02-14 16:42:20,607 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 [2019-02-14 16:42:20,608 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 [2019-02-14 16:42:20,608 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 [2019-02-14 16:42:20,609 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 [2019-02-14 16:42:20,610 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 [2019-02-14 16:42:20,610 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 [2019-02-14 16:42:20,611 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 [2019-02-14 16:42:20,612 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 [2019-02-14 16:42:20,612 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 [2019-02-14 16:42:20,613 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 [2019-02-14 16:42:20,614 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 [2019-02-14 16:42:20,614 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 [2019-02-14 16:42:20,615 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 [2019-02-14 16:42:20,616 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 [2019-02-14 16:42:20,616 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 [2019-02-14 16:42:20,617 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 [2019-02-14 16:42:20,618 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 [2019-02-14 16:42:20,618 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 [2019-02-14 16:42:20,619 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 [2019-02-14 16:42:20,620 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 [2019-02-14 16:42:20,620 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 [2019-02-14 16:42:20,621 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 [2019-02-14 16:42:20,622 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 [2019-02-14 16:42:20,622 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 [2019-02-14 16:42:20,623 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 [2019-02-14 16:42:20,624 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 [2019-02-14 16:42:20,624 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 [2019-02-14 16:42:20,625 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 [2019-02-14 16:42:20,626 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 [2019-02-14 16:42:20,626 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 [2019-02-14 16:42:20,627 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 [2019-02-14 16:42:20,628 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 [2019-02-14 16:42:20,629 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 [2019-02-14 16:42:20,629 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 [2019-02-14 16:42:20,630 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 [2019-02-14 16:42:20,631 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 [2019-02-14 16:42:20,631 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 [2019-02-14 16:42:20,632 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 [2019-02-14 16:42:20,633 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 [2019-02-14 16:42:20,633 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 [2019-02-14 16:42:20,634 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 [2019-02-14 16:42:20,635 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 [2019-02-14 16:42:20,635 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 [2019-02-14 16:42:20,636 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 [2019-02-14 16:42:20,637 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 [2019-02-14 16:42:20,637 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 [2019-02-14 16:42:20,638 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 [2019-02-14 16:42:20,639 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 [2019-02-14 16:42:20,639 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 [2019-02-14 16:42:20,640 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 [2019-02-14 16:42:20,641 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 [2019-02-14 16:42:20,641 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 [2019-02-14 16:42:20,642 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 [2019-02-14 16:42:20,643 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 [2019-02-14 16:42:20,644 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 [2019-02-14 16:42:20,644 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 [2019-02-14 16:42:20,645 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 [2019-02-14 16:42:20,646 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 [2019-02-14 16:42:20,647 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 [2019-02-14 16:42:20,647 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 [2019-02-14 16:42:20,648 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 [2019-02-14 16:42:20,649 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 [2019-02-14 16:42:20,649 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 [2019-02-14 16:42:20,650 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 [2019-02-14 16:42:20,651 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 [2019-02-14 16:42:20,651 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 [2019-02-14 16:42:20,652 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 [2019-02-14 16:42:20,653 INFO L273 TraceCheckUtils]: 78: Hoare triple {19780#(and (<= main_i 156) (< 38 main_n))} assume !(i <= n * 4); {19739#false} is VALID [2019-02-14 16:42:20,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 1482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:42:20,668 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:42:25,097 INFO L273 TraceCheckUtils]: 78: Hoare triple {20058#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {19739#false} is VALID [2019-02-14 16:42:25,098 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 [2019-02-14 16:42:25,098 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 [2019-02-14 16:42:25,100 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 [2019-02-14 16:42:25,100 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 [2019-02-14 16:42:25,102 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 [2019-02-14 16:42:25,102 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 [2019-02-14 16:42:25,104 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 [2019-02-14 16:42:25,104 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 [2019-02-14 16:42:25,106 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 [2019-02-14 16:42:25,106 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 [2019-02-14 16:42:25,107 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 [2019-02-14 16:42:25,109 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 [2019-02-14 16:42:25,109 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 [2019-02-14 16:42:25,111 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 [2019-02-14 16:42:25,111 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 [2019-02-14 16:42:25,113 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 [2019-02-14 16:42:25,114 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 [2019-02-14 16:42:25,115 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 [2019-02-14 16:42:25,116 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 [2019-02-14 16:42:25,117 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 [2019-02-14 16:42:25,118 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 [2019-02-14 16:42:25,119 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 [2019-02-14 16:42:25,120 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 [2019-02-14 16:42:25,121 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 [2019-02-14 16:42:25,123 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 [2019-02-14 16:42:25,123 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 [2019-02-14 16:42:25,125 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 [2019-02-14 16:42:25,125 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 [2019-02-14 16:42:25,127 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 [2019-02-14 16:42:25,127 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 [2019-02-14 16:42:25,130 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 [2019-02-14 16:42:25,130 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 [2019-02-14 16:42:25,132 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 [2019-02-14 16:42:25,132 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 [2019-02-14 16:42:25,134 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 [2019-02-14 16:42:25,134 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 [2019-02-14 16:42:25,136 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 [2019-02-14 16:42:25,136 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 [2019-02-14 16:42:25,138 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 [2019-02-14 16:42:25,138 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 [2019-02-14 16:42:25,140 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 [2019-02-14 16:42:25,140 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 [2019-02-14 16:42:25,142 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 [2019-02-14 16:42:25,142 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 [2019-02-14 16:42:25,144 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 [2019-02-14 16:42:25,144 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 [2019-02-14 16:42:25,146 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 [2019-02-14 16:42:25,146 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 [2019-02-14 16:42:25,148 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 [2019-02-14 16:42:25,148 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 [2019-02-14 16:42:25,150 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 [2019-02-14 16:42:25,150 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 [2019-02-14 16:42:25,153 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 [2019-02-14 16:42:25,153 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 [2019-02-14 16:42:25,155 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 [2019-02-14 16:42:25,155 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 [2019-02-14 16:42:25,157 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 [2019-02-14 16:42:25,157 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 [2019-02-14 16:42:25,160 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 [2019-02-14 16:42:25,160 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 [2019-02-14 16:42:25,162 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 [2019-02-14 16:42:25,162 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 [2019-02-14 16:42:25,164 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 [2019-02-14 16:42:25,164 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 [2019-02-14 16:42:25,166 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 [2019-02-14 16:42:25,166 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 [2019-02-14 16:42:25,168 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 [2019-02-14 16:42:25,168 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 [2019-02-14 16:42:25,170 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 [2019-02-14 16:42:25,170 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 [2019-02-14 16:42:25,172 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 [2019-02-14 16:42:25,172 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 [2019-02-14 16:42:25,174 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 [2019-02-14 16:42:25,174 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 [2019-02-14 16:42:25,175 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 [2019-02-14 16:42:25,177 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 [2019-02-14 16:42:25,177 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 [2019-02-14 16:42:25,179 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 [2019-02-14 16:42:25,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 1482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:42:25,220 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:42:25,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41, 41] total 122 [2019-02-14 16:42:25,220 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:42:25,221 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 79 [2019-02-14 16:42:25,221 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:42:25,221 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 83 states. [2019-02-14 16:42:25,466 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 157 edges. 157 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:42:25,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 83 states [2019-02-14 16:42:25,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2019-02-14 16:42:25,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1894, Invalid=13358, Unknown=0, NotChecked=0, Total=15252 [2019-02-14 16:42:25,468 INFO L87 Difference]: Start difference. First operand 80 states and 80 transitions. Second operand 83 states. [2019-02-14 16:42:35,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:42:35,144 INFO L93 Difference]: Finished difference Result 84 states and 84 transitions. [2019-02-14 16:42:35,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2019-02-14 16:42:35,144 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 79 [2019-02-14 16:42:35,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:42:35,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-02-14 16:42:35,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 84 transitions. [2019-02-14 16:42:35,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-02-14 16:42:35,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 84 transitions. [2019-02-14 16:42:35,147 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 43 states and 84 transitions. [2019-02-14 16:42:35,238 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 84 edges. 84 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:42:35,239 INFO L225 Difference]: With dead ends: 84 [2019-02-14 16:42:35,239 INFO L226 Difference]: Without dead ends: 83 [2019-02-14 16:42:35,241 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3440 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=1894, Invalid=13358, Unknown=0, NotChecked=0, Total=15252 [2019-02-14 16:42:35,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-02-14 16:42:35,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2019-02-14 16:42:35,360 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:42:35,360 INFO L82 GeneralOperation]: Start isEquivalent. First operand 83 states. Second operand 82 states. [2019-02-14 16:42:35,360 INFO L74 IsIncluded]: Start isIncluded. First operand 83 states. Second operand 82 states. [2019-02-14 16:42:35,360 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 82 states. [2019-02-14 16:42:35,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:42:35,361 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2019-02-14 16:42:35,361 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 83 transitions. [2019-02-14 16:42:35,361 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:42:35,361 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:42:35,362 INFO L74 IsIncluded]: Start isIncluded. First operand 82 states. Second operand 83 states. [2019-02-14 16:42:35,362 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 83 states. [2019-02-14 16:42:35,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:42:35,363 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2019-02-14 16:42:35,363 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 83 transitions. [2019-02-14 16:42:35,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:42:35,363 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:42:35,363 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:42:35,363 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:42:35,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-02-14 16:42:35,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2019-02-14 16:42:35,364 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 79 [2019-02-14 16:42:35,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:42:35,364 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2019-02-14 16:42:35,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has 83 states. [2019-02-14 16:42:35,364 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2019-02-14 16:42:35,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-02-14 16:42:35,365 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:42:35,365 INFO L402 BasicCegarLoop]: trace histogram [40, 39, 1, 1] [2019-02-14 16:42:35,365 INFO L423 AbstractCegarLoop]: === Iteration 40 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:42:35,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:42:35,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1203886190, now seen corresponding path program 39 times [2019-02-14 16:42:35,365 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:42:35,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:42:35,366 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:42:35,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:42:35,366 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:42:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:42:35,769 WARN L181 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-14 16:42:37,769 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 [2019-02-14 16:42:37,770 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 [2019-02-14 16:42:37,771 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 [2019-02-14 16:42:37,772 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 [2019-02-14 16:42:37,773 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 [2019-02-14 16:42:37,774 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 [2019-02-14 16:42:37,775 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 [2019-02-14 16:42:37,776 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 [2019-02-14 16:42:37,776 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 [2019-02-14 16:42:37,778 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 [2019-02-14 16:42:37,778 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 [2019-02-14 16:42:37,779 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 [2019-02-14 16:42:37,780 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 [2019-02-14 16:42:37,781 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 [2019-02-14 16:42:37,782 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 [2019-02-14 16:42:37,783 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 [2019-02-14 16:42:37,792 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 [2019-02-14 16:42:37,793 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 [2019-02-14 16:42:37,793 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 [2019-02-14 16:42:37,794 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 [2019-02-14 16:42:37,794 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 [2019-02-14 16:42:37,795 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 [2019-02-14 16:42:37,796 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 [2019-02-14 16:42:37,797 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 [2019-02-14 16:42:37,797 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 [2019-02-14 16:42:37,798 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 [2019-02-14 16:42:37,799 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 [2019-02-14 16:42:37,800 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 [2019-02-14 16:42:37,801 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 [2019-02-14 16:42:37,802 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 [2019-02-14 16:42:37,803 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 [2019-02-14 16:42:37,804 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 [2019-02-14 16:42:37,805 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 [2019-02-14 16:42:37,806 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 [2019-02-14 16:42:37,806 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 [2019-02-14 16:42:37,807 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 [2019-02-14 16:42:37,808 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 [2019-02-14 16:42:37,809 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 [2019-02-14 16:42:37,810 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 [2019-02-14 16:42:37,811 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 [2019-02-14 16:42:37,812 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 [2019-02-14 16:42:37,813 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 [2019-02-14 16:42:37,813 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 [2019-02-14 16:42:37,814 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 [2019-02-14 16:42:37,815 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 [2019-02-14 16:42:37,816 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 [2019-02-14 16:42:37,817 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 [2019-02-14 16:42:37,818 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 [2019-02-14 16:42:37,819 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 [2019-02-14 16:42:37,820 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 [2019-02-14 16:42:37,820 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 [2019-02-14 16:42:37,822 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 [2019-02-14 16:42:37,822 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 [2019-02-14 16:42:37,823 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 [2019-02-14 16:42:37,824 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 [2019-02-14 16:42:37,825 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 [2019-02-14 16:42:37,826 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 [2019-02-14 16:42:37,827 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 [2019-02-14 16:42:37,828 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 [2019-02-14 16:42:37,829 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 [2019-02-14 16:42:37,829 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 [2019-02-14 16:42:37,830 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 [2019-02-14 16:42:37,831 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 [2019-02-14 16:42:37,832 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 [2019-02-14 16:42:37,833 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 [2019-02-14 16:42:37,834 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 [2019-02-14 16:42:37,835 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 [2019-02-14 16:42:37,836 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 [2019-02-14 16:42:37,836 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 [2019-02-14 16:42:37,837 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 [2019-02-14 16:42:37,838 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 [2019-02-14 16:42:37,839 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 [2019-02-14 16:42:37,840 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 [2019-02-14 16:42:37,841 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 [2019-02-14 16:42:37,842 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 [2019-02-14 16:42:37,843 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 [2019-02-14 16:42:37,844 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 [2019-02-14 16:42:37,845 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 [2019-02-14 16:42:37,846 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 [2019-02-14 16:42:37,847 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 [2019-02-14 16:42:37,847 INFO L273 TraceCheckUtils]: 80: Hoare triple {20788#(and (<= 40 main_n) (<= main_i 160))} assume !(i <= n * 4); {20746#false} is VALID [2019-02-14 16:42:37,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 1560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:42:37,880 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:42:37,880 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:42:37,880 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:42:37,880 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:42:37,880 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:42:37,881 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 [2019-02-14 16:42:37,889 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:42:37,889 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:42:37,912 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:42:37,912 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:42:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:42:37,925 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:42:37,960 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 [2019-02-14 16:42:37,962 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:42:37,969 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:42:37,969 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:42:37,970 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:42:37,970 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_43]. (and (= main_i 0) (= (store v_main_a_43 (* 4 main_n) 23) main_a)) [2019-02-14 16:42:37,970 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:42:40,819 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 [2019-02-14 16:42:40,820 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:42:40,827 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:42:40,827 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:42:40,830 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:42:40,830 WARN L398 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))) [2019-02-14 16:42:40,830 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 156 .cse0) (not (= 156 .cse0)) (<= main_i 160))) [2019-02-14 16:42:40,884 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 [2019-02-14 16:42:40,885 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 [2019-02-14 16:42:40,885 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 [2019-02-14 16:42:40,886 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 [2019-02-14 16:42:40,887 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 [2019-02-14 16:42:40,887 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 [2019-02-14 16:42:40,888 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 [2019-02-14 16:42:40,889 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 [2019-02-14 16:42:40,889 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 [2019-02-14 16:42:40,890 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 [2019-02-14 16:42:40,891 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 [2019-02-14 16:42:40,892 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 [2019-02-14 16:42:40,892 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 [2019-02-14 16:42:40,893 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 [2019-02-14 16:42:40,894 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 [2019-02-14 16:42:40,894 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 [2019-02-14 16:42:40,895 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 [2019-02-14 16:42:40,896 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 [2019-02-14 16:42:40,897 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 [2019-02-14 16:42:40,897 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 [2019-02-14 16:42:40,898 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 [2019-02-14 16:42:40,899 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 [2019-02-14 16:42:40,899 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 [2019-02-14 16:42:40,900 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 [2019-02-14 16:42:40,901 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 [2019-02-14 16:42:40,902 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 [2019-02-14 16:42:40,902 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 [2019-02-14 16:42:40,903 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 [2019-02-14 16:42:40,904 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 [2019-02-14 16:42:40,904 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 [2019-02-14 16:42:40,905 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 [2019-02-14 16:42:40,906 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 [2019-02-14 16:42:40,907 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 [2019-02-14 16:42:40,907 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 [2019-02-14 16:42:40,908 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 [2019-02-14 16:42:40,909 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 [2019-02-14 16:42:40,909 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 [2019-02-14 16:42:40,910 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 [2019-02-14 16:42:40,911 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 [2019-02-14 16:42:40,912 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 [2019-02-14 16:42:40,912 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 [2019-02-14 16:42:40,913 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 [2019-02-14 16:42:40,914 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 [2019-02-14 16:42:40,915 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 [2019-02-14 16:42:40,915 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 [2019-02-14 16:42:40,916 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 [2019-02-14 16:42:40,917 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 [2019-02-14 16:42:40,918 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 [2019-02-14 16:42:40,918 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 [2019-02-14 16:42:40,919 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 [2019-02-14 16:42:40,920 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 [2019-02-14 16:42:40,922 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 [2019-02-14 16:42:40,923 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 [2019-02-14 16:42:40,923 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 [2019-02-14 16:42:40,924 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 [2019-02-14 16:42:40,924 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 [2019-02-14 16:42:40,925 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 [2019-02-14 16:42:40,925 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 [2019-02-14 16:42:40,926 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 [2019-02-14 16:42:40,927 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 [2019-02-14 16:42:40,928 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 [2019-02-14 16:42:40,928 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 [2019-02-14 16:42:40,929 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 [2019-02-14 16:42:40,930 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 [2019-02-14 16:42:40,931 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 [2019-02-14 16:42:40,931 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 [2019-02-14 16:42:40,932 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 [2019-02-14 16:42:40,933 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 [2019-02-14 16:42:40,934 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 [2019-02-14 16:42:40,934 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 [2019-02-14 16:42:40,935 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 [2019-02-14 16:42:40,936 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 [2019-02-14 16:42:40,937 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 [2019-02-14 16:42:40,937 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 [2019-02-14 16:42:40,938 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 [2019-02-14 16:42:40,939 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 [2019-02-14 16:42:40,940 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 [2019-02-14 16:42:40,940 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 [2019-02-14 16:42:40,941 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 [2019-02-14 16:42:40,942 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 [2019-02-14 16:42:40,943 INFO L273 TraceCheckUtils]: 80: Hoare triple {20788#(and (<= 40 main_n) (<= main_i 160))} assume !(i <= n * 4); {20746#false} is VALID [2019-02-14 16:42:40,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 1560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:42:40,959 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:42:45,483 INFO L273 TraceCheckUtils]: 80: Hoare triple {21073#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {20746#false} is VALID [2019-02-14 16:42:45,484 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 [2019-02-14 16:42:45,484 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 [2019-02-14 16:42:45,485 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 [2019-02-14 16:42:45,485 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 [2019-02-14 16:42:45,486 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 [2019-02-14 16:42:45,486 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 [2019-02-14 16:42:45,487 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 [2019-02-14 16:42:45,488 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 [2019-02-14 16:42:45,489 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 [2019-02-14 16:42:45,490 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 [2019-02-14 16:42:45,491 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 [2019-02-14 16:42:45,491 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 [2019-02-14 16:42:45,492 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 [2019-02-14 16:42:45,493 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 [2019-02-14 16:42:45,494 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 [2019-02-14 16:42:45,494 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 [2019-02-14 16:42:45,496 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 [2019-02-14 16:42:45,496 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 [2019-02-14 16:42:45,497 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 [2019-02-14 16:42:45,498 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 [2019-02-14 16:42:45,499 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 [2019-02-14 16:42:45,500 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 [2019-02-14 16:42:45,501 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 [2019-02-14 16:42:45,501 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 [2019-02-14 16:42:45,502 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 [2019-02-14 16:42:45,503 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 [2019-02-14 16:42:45,504 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 [2019-02-14 16:42:45,504 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 [2019-02-14 16:42:45,505 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 [2019-02-14 16:42:45,506 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 [2019-02-14 16:42:45,507 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 [2019-02-14 16:42:45,507 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 [2019-02-14 16:42:45,508 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 [2019-02-14 16:42:45,509 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 [2019-02-14 16:42:45,510 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 [2019-02-14 16:42:45,511 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 [2019-02-14 16:42:45,512 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 [2019-02-14 16:42:45,512 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 [2019-02-14 16:42:45,513 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 [2019-02-14 16:42:45,514 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 [2019-02-14 16:42:45,515 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 [2019-02-14 16:42:45,515 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 [2019-02-14 16:42:45,516 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 [2019-02-14 16:42:45,517 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 [2019-02-14 16:42:45,518 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 [2019-02-14 16:42:45,519 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 [2019-02-14 16:42:45,520 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 [2019-02-14 16:42:45,520 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 [2019-02-14 16:42:45,521 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 [2019-02-14 16:42:45,522 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 [2019-02-14 16:42:45,523 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 [2019-02-14 16:42:45,523 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 [2019-02-14 16:42:45,524 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 [2019-02-14 16:42:45,525 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 [2019-02-14 16:42:45,526 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 [2019-02-14 16:42:45,527 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 [2019-02-14 16:42:45,528 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 [2019-02-14 16:42:45,528 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 [2019-02-14 16:42:45,529 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 [2019-02-14 16:42:45,530 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 [2019-02-14 16:42:45,531 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 [2019-02-14 16:42:45,532 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 [2019-02-14 16:42:45,533 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 [2019-02-14 16:42:45,533 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 [2019-02-14 16:42:45,534 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 [2019-02-14 16:42:45,535 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 [2019-02-14 16:42:45,537 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 [2019-02-14 16:42:45,539 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 [2019-02-14 16:42:45,540 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 [2019-02-14 16:42:45,541 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 [2019-02-14 16:42:45,544 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 [2019-02-14 16:42:45,544 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 [2019-02-14 16:42:45,546 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 [2019-02-14 16:42:45,549 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 [2019-02-14 16:42:45,551 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 [2019-02-14 16:42:45,551 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 [2019-02-14 16:42:45,553 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 [2019-02-14 16:42:45,553 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 [2019-02-14 16:42:45,555 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 [2019-02-14 16:42:45,555 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 [2019-02-14 16:42:45,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 1560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:42:45,597 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:42:45,597 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42, 42] total 125 [2019-02-14 16:42:45,597 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:42:45,598 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 81 [2019-02-14 16:42:45,598 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:42:45,598 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 85 states. [2019-02-14 16:42:45,866 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 161 edges. 161 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:42:45,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 85 states [2019-02-14 16:42:45,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2019-02-14 16:42:45,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1982, Invalid=14020, Unknown=0, NotChecked=0, Total=16002 [2019-02-14 16:42:45,867 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand 85 states. [2019-02-14 16:42:55,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:42:55,262 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2019-02-14 16:42:55,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-02-14 16:42:55,262 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 81 [2019-02-14 16:42:55,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:42:55,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-02-14 16:42:55,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 86 transitions. [2019-02-14 16:42:55,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-02-14 16:42:55,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 86 transitions. [2019-02-14 16:42:55,265 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 44 states and 86 transitions. [2019-02-14 16:42:55,361 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 86 edges. 86 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:42:55,363 INFO L225 Difference]: With dead ends: 86 [2019-02-14 16:42:55,363 INFO L226 Difference]: Without dead ends: 85 [2019-02-14 16:42:55,364 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3608 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=1982, Invalid=14020, Unknown=0, NotChecked=0, Total=16002 [2019-02-14 16:42:55,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-02-14 16:42:55,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2019-02-14 16:42:55,441 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:42:55,441 INFO L82 GeneralOperation]: Start isEquivalent. First operand 85 states. Second operand 84 states. [2019-02-14 16:42:55,442 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 84 states. [2019-02-14 16:42:55,442 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 84 states. [2019-02-14 16:42:55,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:42:55,443 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2019-02-14 16:42:55,443 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 85 transitions. [2019-02-14 16:42:55,444 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:42:55,444 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:42:55,444 INFO L74 IsIncluded]: Start isIncluded. First operand 84 states. Second operand 85 states. [2019-02-14 16:42:55,444 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 85 states. [2019-02-14 16:42:55,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:42:55,446 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2019-02-14 16:42:55,446 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 85 transitions. [2019-02-14 16:42:55,446 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:42:55,446 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:42:55,446 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:42:55,446 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:42:55,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-02-14 16:42:55,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 84 transitions. [2019-02-14 16:42:55,447 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 84 transitions. Word has length 81 [2019-02-14 16:42:55,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:42:55,448 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 84 transitions. [2019-02-14 16:42:55,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has 85 states. [2019-02-14 16:42:55,448 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 84 transitions. [2019-02-14 16:42:55,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-02-14 16:42:55,448 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:42:55,448 INFO L402 BasicCegarLoop]: trace histogram [41, 40, 1, 1] [2019-02-14 16:42:55,449 INFO L423 AbstractCegarLoop]: === Iteration 41 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:42:55,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:42:55,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1588427056, now seen corresponding path program 40 times [2019-02-14 16:42:55,449 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:42:55,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:42:55,450 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:42:55,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:42:55,450 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:42:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:42:55,843 WARN L181 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-14 16:42:58,057 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 [2019-02-14 16:42:58,059 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 [2019-02-14 16:42:58,059 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 [2019-02-14 16:42:58,060 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 [2019-02-14 16:42:58,061 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 [2019-02-14 16:42:58,068 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 [2019-02-14 16:42:58,068 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 [2019-02-14 16:42:58,069 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 [2019-02-14 16:42:58,070 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 [2019-02-14 16:42:58,070 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 [2019-02-14 16:42:58,071 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 [2019-02-14 16:42:58,072 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 [2019-02-14 16:42:58,073 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 [2019-02-14 16:42:58,074 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 [2019-02-14 16:42:58,075 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 [2019-02-14 16:42:58,076 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 [2019-02-14 16:42:58,076 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 [2019-02-14 16:42:58,077 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 [2019-02-14 16:42:58,078 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 [2019-02-14 16:42:58,079 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 [2019-02-14 16:42:58,080 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 [2019-02-14 16:42:58,081 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 [2019-02-14 16:42:58,082 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 [2019-02-14 16:42:58,083 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 [2019-02-14 16:42:58,083 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 [2019-02-14 16:42:58,084 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 [2019-02-14 16:42:58,085 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 [2019-02-14 16:42:58,086 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 [2019-02-14 16:42:58,087 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 [2019-02-14 16:42:58,088 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 [2019-02-14 16:42:58,089 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 [2019-02-14 16:42:58,090 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 [2019-02-14 16:42:58,091 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 [2019-02-14 16:42:58,092 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 [2019-02-14 16:42:58,092 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 [2019-02-14 16:42:58,094 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 [2019-02-14 16:42:58,094 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 [2019-02-14 16:42:58,095 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 [2019-02-14 16:42:58,096 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 [2019-02-14 16:42:58,097 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 [2019-02-14 16:42:58,098 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 [2019-02-14 16:42:58,099 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 [2019-02-14 16:42:58,100 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 [2019-02-14 16:42:58,101 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 [2019-02-14 16:42:58,101 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 [2019-02-14 16:42:58,102 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 [2019-02-14 16:42:58,103 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 [2019-02-14 16:42:58,104 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 [2019-02-14 16:42:58,112 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 [2019-02-14 16:42:58,113 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 [2019-02-14 16:42:58,113 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 [2019-02-14 16:42:58,114 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 [2019-02-14 16:42:58,114 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 [2019-02-14 16:42:58,115 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 [2019-02-14 16:42:58,115 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 [2019-02-14 16:42:58,116 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 [2019-02-14 16:42:58,116 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 [2019-02-14 16:42:58,118 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 [2019-02-14 16:42:58,118 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 [2019-02-14 16:42:58,119 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 [2019-02-14 16:42:58,120 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 [2019-02-14 16:42:58,121 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 [2019-02-14 16:42:58,122 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 [2019-02-14 16:42:58,123 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 [2019-02-14 16:42:58,124 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 [2019-02-14 16:42:58,125 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 [2019-02-14 16:42:58,125 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 [2019-02-14 16:42:58,126 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 [2019-02-14 16:42:58,127 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 [2019-02-14 16:42:58,128 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 [2019-02-14 16:42:58,129 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 [2019-02-14 16:42:58,130 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 [2019-02-14 16:42:58,131 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 [2019-02-14 16:42:58,132 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 [2019-02-14 16:42:58,133 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 [2019-02-14 16:42:58,134 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 [2019-02-14 16:42:58,134 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 [2019-02-14 16:42:58,135 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 [2019-02-14 16:42:58,136 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 [2019-02-14 16:42:58,137 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 [2019-02-14 16:42:58,138 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 [2019-02-14 16:42:58,139 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 [2019-02-14 16:42:58,140 INFO L273 TraceCheckUtils]: 82: Hoare triple {21821#(and (<= main_i 164) (< 40 main_n))} assume !(i <= n * 4); {21778#false} is VALID [2019-02-14 16:42:58,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 0 proven. 1640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:42:58,172 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:42:58,172 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:42:58,172 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:42:58,172 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:42:58,172 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:42:58,172 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 [2019-02-14 16:42:58,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:42:58,181 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:42:58,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:42:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:42:58,233 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:42:58,241 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 [2019-02-14 16:42:58,243 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:42:58,246 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:42:58,246 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:42:58,247 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:42:58,248 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_44]. (and (= (store v_main_a_44 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:42:58,248 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:43:01,226 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 [2019-02-14 16:43:01,232 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:43:01,240 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:43:01,241 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:43:01,242 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:43:01,243 WARN L398 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)))) [2019-02-14 16:43:01,243 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 160 .cse0) (<= main_i 164) (not (= 160 .cse0)))) [2019-02-14 16:43:01,340 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 [2019-02-14 16:43:01,341 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 [2019-02-14 16:43:01,342 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 [2019-02-14 16:43:01,342 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 [2019-02-14 16:43:01,343 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 [2019-02-14 16:43:01,344 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 [2019-02-14 16:43:01,344 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 [2019-02-14 16:43:01,345 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 [2019-02-14 16:43:01,346 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 [2019-02-14 16:43:01,346 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 [2019-02-14 16:43:01,347 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 [2019-02-14 16:43:01,348 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 [2019-02-14 16:43:01,348 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 [2019-02-14 16:43:01,349 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 [2019-02-14 16:43:01,350 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 [2019-02-14 16:43:01,350 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 [2019-02-14 16:43:01,351 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 [2019-02-14 16:43:01,352 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 [2019-02-14 16:43:01,352 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 [2019-02-14 16:43:01,353 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 [2019-02-14 16:43:01,354 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 [2019-02-14 16:43:01,354 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 [2019-02-14 16:43:01,355 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 [2019-02-14 16:43:01,356 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 [2019-02-14 16:43:01,356 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 [2019-02-14 16:43:01,357 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 [2019-02-14 16:43:01,358 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 [2019-02-14 16:43:01,358 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 [2019-02-14 16:43:01,359 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 [2019-02-14 16:43:01,360 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 [2019-02-14 16:43:01,360 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 [2019-02-14 16:43:01,361 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 [2019-02-14 16:43:01,362 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 [2019-02-14 16:43:01,363 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 [2019-02-14 16:43:01,363 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 [2019-02-14 16:43:01,364 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 [2019-02-14 16:43:01,365 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 [2019-02-14 16:43:01,365 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 [2019-02-14 16:43:01,366 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 [2019-02-14 16:43:01,367 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 [2019-02-14 16:43:01,367 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 [2019-02-14 16:43:01,368 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 [2019-02-14 16:43:01,369 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 [2019-02-14 16:43:01,369 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 [2019-02-14 16:43:01,370 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 [2019-02-14 16:43:01,371 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 [2019-02-14 16:43:01,371 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 [2019-02-14 16:43:01,372 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 [2019-02-14 16:43:01,373 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 [2019-02-14 16:43:01,373 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 [2019-02-14 16:43:01,374 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 [2019-02-14 16:43:01,375 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 [2019-02-14 16:43:01,375 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 [2019-02-14 16:43:01,376 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 [2019-02-14 16:43:01,377 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 [2019-02-14 16:43:01,378 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 [2019-02-14 16:43:01,378 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 [2019-02-14 16:43:01,379 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 [2019-02-14 16:43:01,380 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 [2019-02-14 16:43:01,380 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 [2019-02-14 16:43:01,381 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 [2019-02-14 16:43:01,382 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 [2019-02-14 16:43:01,382 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 [2019-02-14 16:43:01,383 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 [2019-02-14 16:43:01,384 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 [2019-02-14 16:43:01,384 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 [2019-02-14 16:43:01,385 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 [2019-02-14 16:43:01,386 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 [2019-02-14 16:43:01,386 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 [2019-02-14 16:43:01,387 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 [2019-02-14 16:43:01,388 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 [2019-02-14 16:43:01,389 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 [2019-02-14 16:43:01,389 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 [2019-02-14 16:43:01,390 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 [2019-02-14 16:43:01,391 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 [2019-02-14 16:43:01,391 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 [2019-02-14 16:43:01,392 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 [2019-02-14 16:43:01,393 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 [2019-02-14 16:43:01,393 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 [2019-02-14 16:43:01,394 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 [2019-02-14 16:43:01,395 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 [2019-02-14 16:43:01,396 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 [2019-02-14 16:43:01,396 INFO L273 TraceCheckUtils]: 82: Hoare triple {21821#(and (<= main_i 164) (< 40 main_n))} assume !(i <= n * 4); {21778#false} is VALID [2019-02-14 16:43:01,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 0 proven. 1640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:43:01,412 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:43:06,312 INFO L273 TraceCheckUtils]: 82: Hoare triple {22113#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {21778#false} is VALID [2019-02-14 16:43:06,313 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 [2019-02-14 16:43:06,314 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 [2019-02-14 16:43:06,315 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 [2019-02-14 16:43:06,315 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 [2019-02-14 16:43:06,316 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 [2019-02-14 16:43:06,316 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 [2019-02-14 16:43:06,317 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 [2019-02-14 16:43:06,317 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 [2019-02-14 16:43:06,318 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 [2019-02-14 16:43:06,319 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 [2019-02-14 16:43:06,320 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 [2019-02-14 16:43:06,320 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 [2019-02-14 16:43:06,321 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 [2019-02-14 16:43:06,322 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 [2019-02-14 16:43:06,323 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 [2019-02-14 16:43:06,324 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 [2019-02-14 16:43:06,325 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 [2019-02-14 16:43:06,325 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 [2019-02-14 16:43:06,326 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 [2019-02-14 16:43:06,327 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 [2019-02-14 16:43:06,328 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 [2019-02-14 16:43:06,329 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 [2019-02-14 16:43:06,330 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 [2019-02-14 16:43:06,330 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 [2019-02-14 16:43:06,332 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 [2019-02-14 16:43:06,332 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 [2019-02-14 16:43:06,333 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 [2019-02-14 16:43:06,334 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 [2019-02-14 16:43:06,335 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 [2019-02-14 16:43:06,335 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 [2019-02-14 16:43:06,336 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 [2019-02-14 16:43:06,337 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 [2019-02-14 16:43:06,338 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 [2019-02-14 16:43:06,339 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 [2019-02-14 16:43:06,340 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 [2019-02-14 16:43:06,340 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 [2019-02-14 16:43:06,341 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 [2019-02-14 16:43:06,342 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 [2019-02-14 16:43:06,343 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 [2019-02-14 16:43:06,344 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 [2019-02-14 16:43:06,345 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 [2019-02-14 16:43:06,345 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 [2019-02-14 16:43:06,347 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 [2019-02-14 16:43:06,347 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 [2019-02-14 16:43:06,348 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 [2019-02-14 16:43:06,349 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 [2019-02-14 16:43:06,350 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 [2019-02-14 16:43:06,350 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 [2019-02-14 16:43:06,351 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 [2019-02-14 16:43:06,352 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 [2019-02-14 16:43:06,353 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 [2019-02-14 16:43:06,354 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 [2019-02-14 16:43:06,355 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 [2019-02-14 16:43:06,355 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 [2019-02-14 16:43:06,357 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 [2019-02-14 16:43:06,357 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 [2019-02-14 16:43:06,358 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 [2019-02-14 16:43:06,359 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 [2019-02-14 16:43:06,360 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 [2019-02-14 16:43:06,360 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 [2019-02-14 16:43:06,362 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 [2019-02-14 16:43:06,362 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 [2019-02-14 16:43:06,363 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 [2019-02-14 16:43:06,364 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 [2019-02-14 16:43:06,365 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 [2019-02-14 16:43:06,365 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 [2019-02-14 16:43:06,367 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 [2019-02-14 16:43:06,367 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 [2019-02-14 16:43:06,368 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 [2019-02-14 16:43:06,369 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 [2019-02-14 16:43:06,370 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 [2019-02-14 16:43:06,370 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 [2019-02-14 16:43:06,372 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 [2019-02-14 16:43:06,372 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 [2019-02-14 16:43:06,373 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 [2019-02-14 16:43:06,374 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 [2019-02-14 16:43:06,375 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 [2019-02-14 16:43:06,375 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 [2019-02-14 16:43:06,377 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 [2019-02-14 16:43:06,377 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 [2019-02-14 16:43:06,378 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 [2019-02-14 16:43:06,379 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 [2019-02-14 16:43:06,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 0 proven. 1640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:43:06,424 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:43:06,424 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43, 43] total 128 [2019-02-14 16:43:06,424 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:43:06,425 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 83 [2019-02-14 16:43:06,425 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:43:06,425 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 87 states. [2019-02-14 16:43:06,637 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 165 edges. 165 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:43:06,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 87 states [2019-02-14 16:43:06,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2019-02-14 16:43:06,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2072, Invalid=14698, Unknown=0, NotChecked=0, Total=16770 [2019-02-14 16:43:06,638 INFO L87 Difference]: Start difference. First operand 84 states and 84 transitions. Second operand 87 states. [2019-02-14 16:43:16,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:43:16,828 INFO L93 Difference]: Finished difference Result 88 states and 88 transitions. [2019-02-14 16:43:16,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-02-14 16:43:16,828 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 83 [2019-02-14 16:43:16,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:43:16,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-02-14 16:43:16,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 88 transitions. [2019-02-14 16:43:16,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-02-14 16:43:16,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 88 transitions. [2019-02-14 16:43:16,830 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 45 states and 88 transitions. [2019-02-14 16:43:16,925 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 88 edges. 88 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:43:16,927 INFO L225 Difference]: With dead ends: 88 [2019-02-14 16:43:16,927 INFO L226 Difference]: Without dead ends: 87 [2019-02-14 16:43:16,928 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3780 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=2072, Invalid=14698, Unknown=0, NotChecked=0, Total=16770 [2019-02-14 16:43:16,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-02-14 16:43:17,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2019-02-14 16:43:17,020 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:43:17,020 INFO L82 GeneralOperation]: Start isEquivalent. First operand 87 states. Second operand 86 states. [2019-02-14 16:43:17,020 INFO L74 IsIncluded]: Start isIncluded. First operand 87 states. Second operand 86 states. [2019-02-14 16:43:17,021 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 86 states. [2019-02-14 16:43:17,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:43:17,022 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2019-02-14 16:43:17,022 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 87 transitions. [2019-02-14 16:43:17,022 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:43:17,023 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:43:17,023 INFO L74 IsIncluded]: Start isIncluded. First operand 86 states. Second operand 87 states. [2019-02-14 16:43:17,023 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 87 states. [2019-02-14 16:43:17,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:43:17,024 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2019-02-14 16:43:17,024 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 87 transitions. [2019-02-14 16:43:17,024 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:43:17,024 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:43:17,025 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:43:17,025 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:43:17,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-02-14 16:43:17,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 86 transitions. [2019-02-14 16:43:17,026 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 86 transitions. Word has length 83 [2019-02-14 16:43:17,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:43:17,026 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 86 transitions. [2019-02-14 16:43:17,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has 87 states. [2019-02-14 16:43:17,026 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 86 transitions. [2019-02-14 16:43:17,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-02-14 16:43:17,027 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:43:17,027 INFO L402 BasicCegarLoop]: trace histogram [42, 41, 1, 1] [2019-02-14 16:43:17,027 INFO L423 AbstractCegarLoop]: === Iteration 42 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:43:17,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:43:17,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1765011826, now seen corresponding path program 41 times [2019-02-14 16:43:17,028 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:43:17,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:43:17,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:43:17,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:43:17,028 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:43:17,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:43:17,477 WARN L181 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-14 16:43:19,556 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 [2019-02-14 16:43:19,557 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 [2019-02-14 16:43:19,558 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 [2019-02-14 16:43:19,559 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 [2019-02-14 16:43:19,559 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 [2019-02-14 16:43:19,560 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 [2019-02-14 16:43:19,561 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 [2019-02-14 16:43:19,562 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 [2019-02-14 16:43:19,563 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 [2019-02-14 16:43:19,564 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 [2019-02-14 16:43:19,565 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 [2019-02-14 16:43:19,566 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 [2019-02-14 16:43:19,566 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 [2019-02-14 16:43:19,567 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 [2019-02-14 16:43:19,568 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 [2019-02-14 16:43:19,569 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 [2019-02-14 16:43:19,570 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 [2019-02-14 16:43:19,571 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 [2019-02-14 16:43:19,572 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 [2019-02-14 16:43:19,573 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 [2019-02-14 16:43:19,574 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 [2019-02-14 16:43:19,575 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 [2019-02-14 16:43:19,575 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 [2019-02-14 16:43:19,576 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 [2019-02-14 16:43:19,577 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 [2019-02-14 16:43:19,578 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 [2019-02-14 16:43:19,579 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 [2019-02-14 16:43:19,580 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 [2019-02-14 16:43:19,581 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 [2019-02-14 16:43:19,582 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 [2019-02-14 16:43:19,582 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 [2019-02-14 16:43:19,583 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 [2019-02-14 16:43:19,584 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 [2019-02-14 16:43:19,585 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 [2019-02-14 16:43:19,586 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 [2019-02-14 16:43:19,587 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 [2019-02-14 16:43:19,588 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 [2019-02-14 16:43:19,589 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 [2019-02-14 16:43:19,589 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 [2019-02-14 16:43:19,590 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 [2019-02-14 16:43:19,591 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 [2019-02-14 16:43:19,592 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 [2019-02-14 16:43:19,593 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 [2019-02-14 16:43:19,594 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 [2019-02-14 16:43:19,595 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 [2019-02-14 16:43:19,596 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 [2019-02-14 16:43:19,597 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 [2019-02-14 16:43:19,598 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 [2019-02-14 16:43:19,598 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 [2019-02-14 16:43:19,599 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 [2019-02-14 16:43:19,600 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 [2019-02-14 16:43:19,601 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 [2019-02-14 16:43:19,602 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 [2019-02-14 16:43:19,603 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 [2019-02-14 16:43:19,604 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 [2019-02-14 16:43:19,605 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 [2019-02-14 16:43:19,605 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 [2019-02-14 16:43:19,606 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 [2019-02-14 16:43:19,607 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 [2019-02-14 16:43:19,608 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 [2019-02-14 16:43:19,609 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 [2019-02-14 16:43:19,610 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 [2019-02-14 16:43:19,611 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 [2019-02-14 16:43:19,612 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 [2019-02-14 16:43:19,612 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 [2019-02-14 16:43:19,614 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 [2019-02-14 16:43:19,614 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 [2019-02-14 16:43:19,615 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 [2019-02-14 16:43:19,616 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 [2019-02-14 16:43:19,617 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 [2019-02-14 16:43:19,618 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 [2019-02-14 16:43:19,619 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 [2019-02-14 16:43:19,620 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 [2019-02-14 16:43:19,621 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 [2019-02-14 16:43:19,621 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 [2019-02-14 16:43:19,622 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 [2019-02-14 16:43:19,623 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 [2019-02-14 16:43:19,624 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 [2019-02-14 16:43:19,625 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 [2019-02-14 16:43:19,626 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 [2019-02-14 16:43:19,627 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 [2019-02-14 16:43:19,628 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 [2019-02-14 16:43:19,629 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 [2019-02-14 16:43:19,630 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 [2019-02-14 16:43:19,631 INFO L273 TraceCheckUtils]: 84: Hoare triple {22879#(and (< 41 main_n) (<= main_i 168))} assume !(i <= n * 4); {22835#false} is VALID [2019-02-14 16:43:19,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 1722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:43:19,662 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:43:19,662 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:43:19,662 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:43:19,662 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:43:19,662 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:43:19,662 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 [2019-02-14 16:43:19,672 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:43:19,672 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:43:19,828 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 42 check-sat command(s) [2019-02-14 16:43:19,828 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:43:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:43:19,856 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:43:19,873 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 [2019-02-14 16:43:19,873 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:43:19,877 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:43:19,877 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:43:19,880 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:43:19,880 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_45]. (and (= (store v_main_a_45 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:43:19,880 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:43:22,889 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 [2019-02-14 16:43:22,896 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:43:22,900 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:43:22,901 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:43:22,903 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:43:22,904 WARN L398 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))) [2019-02-14 16:43:22,904 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 164 .cse0) (not (= 164 .cse0)) (<= main_i 168))) [2019-02-14 16:43:22,955 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 [2019-02-14 16:43:22,955 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 [2019-02-14 16:43:22,956 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 [2019-02-14 16:43:22,956 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 [2019-02-14 16:43:22,957 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 [2019-02-14 16:43:22,958 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 [2019-02-14 16:43:22,958 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 [2019-02-14 16:43:22,959 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 [2019-02-14 16:43:22,973 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 [2019-02-14 16:43:22,974 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 [2019-02-14 16:43:22,974 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 [2019-02-14 16:43:22,975 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 [2019-02-14 16:43:22,975 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 [2019-02-14 16:43:22,975 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 [2019-02-14 16:43:22,976 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 [2019-02-14 16:43:22,976 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 [2019-02-14 16:43:22,977 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 [2019-02-14 16:43:22,977 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 [2019-02-14 16:43:22,978 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 [2019-02-14 16:43:22,978 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 [2019-02-14 16:43:22,978 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 [2019-02-14 16:43:22,979 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 [2019-02-14 16:43:22,980 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 [2019-02-14 16:43:22,980 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 [2019-02-14 16:43:22,981 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 [2019-02-14 16:43:22,982 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 [2019-02-14 16:43:22,982 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 [2019-02-14 16:43:22,983 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 [2019-02-14 16:43:22,984 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 [2019-02-14 16:43:22,984 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 [2019-02-14 16:43:22,985 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 [2019-02-14 16:43:22,986 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 [2019-02-14 16:43:22,986 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 [2019-02-14 16:43:22,987 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 [2019-02-14 16:43:22,988 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 [2019-02-14 16:43:22,988 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 [2019-02-14 16:43:22,989 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 [2019-02-14 16:43:22,990 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 [2019-02-14 16:43:22,990 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 [2019-02-14 16:43:22,991 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 [2019-02-14 16:43:22,992 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 [2019-02-14 16:43:22,992 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 [2019-02-14 16:43:22,993 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 [2019-02-14 16:43:22,994 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 [2019-02-14 16:43:22,995 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 [2019-02-14 16:43:22,995 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 [2019-02-14 16:43:22,996 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 [2019-02-14 16:43:22,997 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 [2019-02-14 16:43:22,997 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 [2019-02-14 16:43:22,998 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 [2019-02-14 16:43:22,999 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 [2019-02-14 16:43:22,999 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 [2019-02-14 16:43:23,000 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 [2019-02-14 16:43:23,001 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 [2019-02-14 16:43:23,001 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 [2019-02-14 16:43:23,002 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 [2019-02-14 16:43:23,003 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 [2019-02-14 16:43:23,003 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 [2019-02-14 16:43:23,004 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 [2019-02-14 16:43:23,005 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 [2019-02-14 16:43:23,005 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 [2019-02-14 16:43:23,006 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 [2019-02-14 16:43:23,007 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 [2019-02-14 16:43:23,007 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 [2019-02-14 16:43:23,008 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 [2019-02-14 16:43:23,009 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 [2019-02-14 16:43:23,010 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 [2019-02-14 16:43:23,010 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 [2019-02-14 16:43:23,011 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 [2019-02-14 16:43:23,012 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 [2019-02-14 16:43:23,012 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 [2019-02-14 16:43:23,013 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 [2019-02-14 16:43:23,014 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 [2019-02-14 16:43:23,015 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 [2019-02-14 16:43:23,015 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 [2019-02-14 16:43:23,016 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 [2019-02-14 16:43:23,016 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 [2019-02-14 16:43:23,017 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 [2019-02-14 16:43:23,018 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 [2019-02-14 16:43:23,019 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 [2019-02-14 16:43:23,019 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 [2019-02-14 16:43:23,020 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 [2019-02-14 16:43:23,021 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 [2019-02-14 16:43:23,021 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 [2019-02-14 16:43:23,022 INFO L273 TraceCheckUtils]: 84: Hoare triple {22879#(and (< 41 main_n) (<= main_i 168))} assume !(i <= n * 4); {22835#false} is VALID [2019-02-14 16:43:23,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 1722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:43:23,044 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:43:28,199 INFO L273 TraceCheckUtils]: 84: Hoare triple {23178#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {22835#false} is VALID [2019-02-14 16:43:28,200 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 [2019-02-14 16:43:28,201 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 [2019-02-14 16:43:28,201 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 [2019-02-14 16:43:28,201 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 [2019-02-14 16:43:28,202 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 [2019-02-14 16:43:28,203 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 [2019-02-14 16:43:28,204 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 [2019-02-14 16:43:28,204 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 [2019-02-14 16:43:28,205 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 [2019-02-14 16:43:28,206 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 [2019-02-14 16:43:28,207 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 [2019-02-14 16:43:28,207 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 [2019-02-14 16:43:28,208 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 [2019-02-14 16:43:28,209 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 [2019-02-14 16:43:28,210 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 [2019-02-14 16:43:28,210 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 [2019-02-14 16:43:28,211 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 [2019-02-14 16:43:28,212 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 [2019-02-14 16:43:28,213 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 [2019-02-14 16:43:28,214 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 [2019-02-14 16:43:28,215 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 [2019-02-14 16:43:28,215 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 [2019-02-14 16:43:28,216 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 [2019-02-14 16:43:28,217 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 [2019-02-14 16:43:28,218 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 [2019-02-14 16:43:28,218 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 [2019-02-14 16:43:28,219 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 [2019-02-14 16:43:28,220 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 [2019-02-14 16:43:28,221 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 [2019-02-14 16:43:28,221 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 [2019-02-14 16:43:28,222 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 [2019-02-14 16:43:28,223 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 [2019-02-14 16:43:28,224 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 [2019-02-14 16:43:28,225 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 [2019-02-14 16:43:28,226 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 [2019-02-14 16:43:28,226 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 [2019-02-14 16:43:28,227 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 [2019-02-14 16:43:28,228 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 [2019-02-14 16:43:28,229 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 [2019-02-14 16:43:28,229 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 [2019-02-14 16:43:28,230 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 [2019-02-14 16:43:28,231 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 [2019-02-14 16:43:28,232 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 [2019-02-14 16:43:28,232 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 [2019-02-14 16:43:28,233 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 [2019-02-14 16:43:28,234 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 [2019-02-14 16:43:28,235 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 [2019-02-14 16:43:28,236 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 [2019-02-14 16:43:28,237 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 [2019-02-14 16:43:28,252 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 [2019-02-14 16:43:28,254 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 [2019-02-14 16:43:28,260 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 [2019-02-14 16:43:28,260 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 [2019-02-14 16:43:28,261 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 [2019-02-14 16:43:28,261 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 [2019-02-14 16:43:28,262 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 [2019-02-14 16:43:28,262 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 [2019-02-14 16:43:28,263 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 [2019-02-14 16:43:28,263 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 [2019-02-14 16:43:28,264 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 [2019-02-14 16:43:28,265 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 [2019-02-14 16:43:28,266 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 [2019-02-14 16:43:28,267 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 [2019-02-14 16:43:28,267 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 [2019-02-14 16:43:28,268 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 [2019-02-14 16:43:28,269 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 [2019-02-14 16:43:28,270 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 [2019-02-14 16:43:28,270 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 [2019-02-14 16:43:28,271 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 [2019-02-14 16:43:28,272 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 [2019-02-14 16:43:28,273 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 [2019-02-14 16:43:28,273 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 [2019-02-14 16:43:28,274 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 [2019-02-14 16:43:28,275 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 [2019-02-14 16:43:28,276 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 [2019-02-14 16:43:28,277 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 [2019-02-14 16:43:28,278 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 [2019-02-14 16:43:28,278 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 [2019-02-14 16:43:28,279 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 [2019-02-14 16:43:28,280 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 [2019-02-14 16:43:28,281 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 [2019-02-14 16:43:28,281 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 [2019-02-14 16:43:28,282 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 [2019-02-14 16:43:28,283 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 [2019-02-14 16:43:28,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 1722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:43:28,329 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:43:28,329 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 131 [2019-02-14 16:43:28,329 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:43:28,329 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 85 [2019-02-14 16:43:28,330 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:43:28,330 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 89 states. [2019-02-14 16:43:28,547 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 169 edges. 169 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:43:28,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 89 states [2019-02-14 16:43:28,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2019-02-14 16:43:28,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2164, Invalid=15392, Unknown=0, NotChecked=0, Total=17556 [2019-02-14 16:43:28,548 INFO L87 Difference]: Start difference. First operand 86 states and 86 transitions. Second operand 89 states. [2019-02-14 16:43:40,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:43:40,837 INFO L93 Difference]: Finished difference Result 90 states and 90 transitions. [2019-02-14 16:43:40,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-02-14 16:43:40,837 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 85 [2019-02-14 16:43:40,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:43:40,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-02-14 16:43:40,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 90 transitions. [2019-02-14 16:43:40,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-02-14 16:43:40,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 90 transitions. [2019-02-14 16:43:40,840 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 46 states and 90 transitions. [2019-02-14 16:43:40,957 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 90 edges. 90 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:43:40,958 INFO L225 Difference]: With dead ends: 90 [2019-02-14 16:43:40,958 INFO L226 Difference]: Without dead ends: 89 [2019-02-14 16:43:40,959 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3956 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=2164, Invalid=15392, Unknown=0, NotChecked=0, Total=17556 [2019-02-14 16:43:40,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-02-14 16:43:41,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 88. [2019-02-14 16:43:41,041 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:43:41,042 INFO L82 GeneralOperation]: Start isEquivalent. First operand 89 states. Second operand 88 states. [2019-02-14 16:43:41,042 INFO L74 IsIncluded]: Start isIncluded. First operand 89 states. Second operand 88 states. [2019-02-14 16:43:41,042 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 88 states. [2019-02-14 16:43:41,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:43:41,043 INFO L93 Difference]: Finished difference Result 89 states and 89 transitions. [2019-02-14 16:43:41,044 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2019-02-14 16:43:41,044 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:43:41,044 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:43:41,044 INFO L74 IsIncluded]: Start isIncluded. First operand 88 states. Second operand 89 states. [2019-02-14 16:43:41,044 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 89 states. [2019-02-14 16:43:41,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:43:41,045 INFO L93 Difference]: Finished difference Result 89 states and 89 transitions. [2019-02-14 16:43:41,045 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2019-02-14 16:43:41,046 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:43:41,046 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:43:41,046 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:43:41,046 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:43:41,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-02-14 16:43:41,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 88 transitions. [2019-02-14 16:43:41,047 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 88 transitions. Word has length 85 [2019-02-14 16:43:41,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:43:41,047 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 88 transitions. [2019-02-14 16:43:41,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has 89 states. [2019-02-14 16:43:41,047 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 88 transitions. [2019-02-14 16:43:41,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-02-14 16:43:41,047 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:43:41,048 INFO L402 BasicCegarLoop]: trace histogram [43, 42, 1, 1] [2019-02-14 16:43:41,048 INFO L423 AbstractCegarLoop]: === Iteration 43 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:43:41,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:43:41,048 INFO L82 PathProgramCache]: Analyzing trace with hash -335716044, now seen corresponding path program 42 times [2019-02-14 16:43:41,048 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:43:41,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:43:41,049 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:43:41,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:43:41,049 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:43:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:43:43,663 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 [2019-02-14 16:43:43,664 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 [2019-02-14 16:43:43,665 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 [2019-02-14 16:43:43,666 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 [2019-02-14 16:43:43,667 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 [2019-02-14 16:43:43,668 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 [2019-02-14 16:43:43,669 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 [2019-02-14 16:43:43,670 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 [2019-02-14 16:43:43,670 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 [2019-02-14 16:43:43,672 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 [2019-02-14 16:43:43,672 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 [2019-02-14 16:43:43,673 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 [2019-02-14 16:43:43,674 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 [2019-02-14 16:43:43,675 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 [2019-02-14 16:43:43,676 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 [2019-02-14 16:43:43,677 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 [2019-02-14 16:43:43,678 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 [2019-02-14 16:43:43,679 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 [2019-02-14 16:43:43,680 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 [2019-02-14 16:43:43,681 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 [2019-02-14 16:43:43,682 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 [2019-02-14 16:43:43,683 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 [2019-02-14 16:43:43,683 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 [2019-02-14 16:43:43,685 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 [2019-02-14 16:43:43,685 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 [2019-02-14 16:43:43,686 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 [2019-02-14 16:43:43,687 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 [2019-02-14 16:43:43,688 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 [2019-02-14 16:43:43,689 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 [2019-02-14 16:43:43,690 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 [2019-02-14 16:43:43,691 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 [2019-02-14 16:43:43,692 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 [2019-02-14 16:43:43,693 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 [2019-02-14 16:43:43,694 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 [2019-02-14 16:43:43,694 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 [2019-02-14 16:43:43,695 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 [2019-02-14 16:43:43,696 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 [2019-02-14 16:43:43,697 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 [2019-02-14 16:43:43,698 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 [2019-02-14 16:43:43,699 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 [2019-02-14 16:43:43,700 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 [2019-02-14 16:43:43,701 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 [2019-02-14 16:43:43,701 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 [2019-02-14 16:43:43,702 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 [2019-02-14 16:43:43,703 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 [2019-02-14 16:43:43,704 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 [2019-02-14 16:43:43,705 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 [2019-02-14 16:43:43,706 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 [2019-02-14 16:43:43,707 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 [2019-02-14 16:43:43,708 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 [2019-02-14 16:43:43,709 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 [2019-02-14 16:43:43,710 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 [2019-02-14 16:43:43,710 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 [2019-02-14 16:43:43,712 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 [2019-02-14 16:43:43,712 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 [2019-02-14 16:43:43,713 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 [2019-02-14 16:43:43,714 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 [2019-02-14 16:43:43,715 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 [2019-02-14 16:43:43,716 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 [2019-02-14 16:43:43,717 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 [2019-02-14 16:43:43,718 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 [2019-02-14 16:43:43,719 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 [2019-02-14 16:43:43,720 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 [2019-02-14 16:43:43,721 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 [2019-02-14 16:43:43,721 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 [2019-02-14 16:43:43,722 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 [2019-02-14 16:43:43,723 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 [2019-02-14 16:43:43,724 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 [2019-02-14 16:43:43,725 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 [2019-02-14 16:43:43,726 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 [2019-02-14 16:43:43,727 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 [2019-02-14 16:43:43,728 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 [2019-02-14 16:43:43,729 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 [2019-02-14 16:43:43,730 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 [2019-02-14 16:43:43,730 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 [2019-02-14 16:43:43,731 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 [2019-02-14 16:43:43,732 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 [2019-02-14 16:43:43,733 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 [2019-02-14 16:43:43,734 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 [2019-02-14 16:43:43,735 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 [2019-02-14 16:43:43,736 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 [2019-02-14 16:43:43,737 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 [2019-02-14 16:43:43,738 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 [2019-02-14 16:43:43,739 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 [2019-02-14 16:43:43,740 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 [2019-02-14 16:43:43,741 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 [2019-02-14 16:43:43,741 INFO L273 TraceCheckUtils]: 86: Hoare triple {23962#(and (<= main_i 172) (< 42 main_n))} assume !(i <= n * 4); {23917#false} is VALID [2019-02-14 16:43:43,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 0 proven. 1806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:43:43,778 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:43:43,778 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:43:43,778 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:43:43,778 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:43:43,778 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:43:43,778 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 [2019-02-14 16:43:43,787 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:43:43,788 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:43:43,810 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:43:43,811 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:43:43,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:43:43,826 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:43:43,834 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 [2019-02-14 16:43:43,836 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:43:43,843 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:43:43,843 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:43:43,844 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:43:43,844 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_46]. (and (= (store v_main_a_46 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:43:43,844 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:43:46,854 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 [2019-02-14 16:43:46,856 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:43:46,862 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:43:46,862 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:43:46,865 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:43:46,865 WARN L398 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)))) [2019-02-14 16:43:46,865 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 168 .cse0) (not (= 168 .cse0)) (<= main_i 172))) [2019-02-14 16:43:46,918 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 [2019-02-14 16:43:46,919 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 [2019-02-14 16:43:46,919 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 [2019-02-14 16:43:46,920 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 [2019-02-14 16:43:46,921 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 [2019-02-14 16:43:46,921 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 [2019-02-14 16:43:46,922 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 [2019-02-14 16:43:46,941 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 [2019-02-14 16:43:46,961 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 [2019-02-14 16:43:46,964 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 [2019-02-14 16:43:46,965 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 [2019-02-14 16:43:46,965 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 [2019-02-14 16:43:46,966 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 [2019-02-14 16:43:46,966 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 [2019-02-14 16:43:46,967 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 [2019-02-14 16:43:46,967 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 [2019-02-14 16:43:46,967 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 [2019-02-14 16:43:46,968 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 [2019-02-14 16:43:46,968 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 [2019-02-14 16:43:46,969 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 [2019-02-14 16:43:46,969 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 [2019-02-14 16:43:46,970 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 [2019-02-14 16:43:46,971 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 [2019-02-14 16:43:46,971 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 [2019-02-14 16:43:46,972 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 [2019-02-14 16:43:46,973 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 [2019-02-14 16:43:46,973 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 [2019-02-14 16:43:46,974 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 [2019-02-14 16:43:46,975 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 [2019-02-14 16:43:46,975 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 [2019-02-14 16:43:46,976 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 [2019-02-14 16:43:46,977 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 [2019-02-14 16:43:46,979 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 [2019-02-14 16:43:46,981 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 [2019-02-14 16:43:46,981 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 [2019-02-14 16:43:46,982 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 [2019-02-14 16:43:46,983 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 [2019-02-14 16:43:46,984 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 [2019-02-14 16:43:46,986 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 [2019-02-14 16:43:46,986 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 [2019-02-14 16:43:46,987 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 [2019-02-14 16:43:46,991 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 [2019-02-14 16:43:46,991 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 [2019-02-14 16:43:46,993 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 [2019-02-14 16:43:46,993 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 [2019-02-14 16:43:46,995 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 [2019-02-14 16:43:46,995 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 [2019-02-14 16:43:46,998 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 [2019-02-14 16:43:46,998 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 [2019-02-14 16:43:47,001 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 [2019-02-14 16:43:47,001 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 [2019-02-14 16:43:47,003 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 [2019-02-14 16:43:47,003 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 [2019-02-14 16:43:47,005 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 [2019-02-14 16:43:47,005 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 [2019-02-14 16:43:47,007 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 [2019-02-14 16:43:47,007 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 [2019-02-14 16:43:47,009 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 [2019-02-14 16:43:47,009 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 [2019-02-14 16:43:47,011 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 [2019-02-14 16:43:47,011 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 [2019-02-14 16:43:47,012 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 [2019-02-14 16:43:47,012 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 [2019-02-14 16:43:47,013 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 [2019-02-14 16:43:47,013 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 [2019-02-14 16:43:47,015 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 [2019-02-14 16:43:47,015 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 [2019-02-14 16:43:47,017 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 [2019-02-14 16:43:47,017 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 [2019-02-14 16:43:47,019 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 [2019-02-14 16:43:47,019 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 [2019-02-14 16:43:47,022 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 [2019-02-14 16:43:47,022 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 [2019-02-14 16:43:47,024 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 [2019-02-14 16:43:47,024 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 [2019-02-14 16:43:47,027 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 [2019-02-14 16:43:47,027 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 [2019-02-14 16:43:47,030 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 [2019-02-14 16:43:47,030 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 [2019-02-14 16:43:47,032 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 [2019-02-14 16:43:47,032 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 [2019-02-14 16:43:47,034 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 [2019-02-14 16:43:47,034 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 [2019-02-14 16:43:47,036 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 [2019-02-14 16:43:47,036 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 [2019-02-14 16:43:47,038 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 [2019-02-14 16:43:47,038 INFO L273 TraceCheckUtils]: 86: Hoare triple {23962#(and (<= main_i 172) (< 42 main_n))} assume !(i <= n * 4); {23917#false} is VALID [2019-02-14 16:43:47,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 0 proven. 1806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:43:47,059 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:43:52,699 INFO L273 TraceCheckUtils]: 86: Hoare triple {24268#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {23917#false} is VALID [2019-02-14 16:43:52,700 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 [2019-02-14 16:43:52,700 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 [2019-02-14 16:43:52,701 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 [2019-02-14 16:43:52,701 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 [2019-02-14 16:43:52,702 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 [2019-02-14 16:43:52,703 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 [2019-02-14 16:43:52,704 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 [2019-02-14 16:43:52,704 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 [2019-02-14 16:43:52,705 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 [2019-02-14 16:43:52,706 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 [2019-02-14 16:43:52,707 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 [2019-02-14 16:43:52,707 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 [2019-02-14 16:43:52,709 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 [2019-02-14 16:43:52,709 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 [2019-02-14 16:43:52,710 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 [2019-02-14 16:43:52,711 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 [2019-02-14 16:43:52,712 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 [2019-02-14 16:43:52,712 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 [2019-02-14 16:43:52,714 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 [2019-02-14 16:43:52,714 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 [2019-02-14 16:43:52,715 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 [2019-02-14 16:43:52,716 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 [2019-02-14 16:43:52,717 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 [2019-02-14 16:43:52,717 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 [2019-02-14 16:43:52,718 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 [2019-02-14 16:43:52,719 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 [2019-02-14 16:43:52,720 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 [2019-02-14 16:43:52,721 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 [2019-02-14 16:43:52,722 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 [2019-02-14 16:43:52,722 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 [2019-02-14 16:43:52,723 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 [2019-02-14 16:43:52,724 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 [2019-02-14 16:43:52,725 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 [2019-02-14 16:43:52,726 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 [2019-02-14 16:43:52,727 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 [2019-02-14 16:43:52,727 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 [2019-02-14 16:43:52,728 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 [2019-02-14 16:43:52,729 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 [2019-02-14 16:43:52,730 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 [2019-02-14 16:43:52,730 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 [2019-02-14 16:43:52,731 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 [2019-02-14 16:43:52,732 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 [2019-02-14 16:43:52,733 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 [2019-02-14 16:43:52,734 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 [2019-02-14 16:43:52,735 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 [2019-02-14 16:43:52,735 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 [2019-02-14 16:43:52,736 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 [2019-02-14 16:43:52,737 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 [2019-02-14 16:43:52,738 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 [2019-02-14 16:43:52,738 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 [2019-02-14 16:43:52,739 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 [2019-02-14 16:43:52,740 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 [2019-02-14 16:43:52,741 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 [2019-02-14 16:43:52,741 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 [2019-02-14 16:43:52,742 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 [2019-02-14 16:43:52,743 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 [2019-02-14 16:43:52,744 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 [2019-02-14 16:43:52,745 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 [2019-02-14 16:43:52,746 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 [2019-02-14 16:43:52,746 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 [2019-02-14 16:43:52,747 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 [2019-02-14 16:43:52,748 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 [2019-02-14 16:43:52,749 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 [2019-02-14 16:43:52,749 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 [2019-02-14 16:43:52,750 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 [2019-02-14 16:43:52,751 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 [2019-02-14 16:43:52,752 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 [2019-02-14 16:43:52,752 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 [2019-02-14 16:43:52,753 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 [2019-02-14 16:43:52,754 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 [2019-02-14 16:43:52,755 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 [2019-02-14 16:43:52,756 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 [2019-02-14 16:43:52,757 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 [2019-02-14 16:43:52,757 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 [2019-02-14 16:43:52,758 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 [2019-02-14 16:43:52,759 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 [2019-02-14 16:43:52,760 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 [2019-02-14 16:43:52,760 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 [2019-02-14 16:43:52,761 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 [2019-02-14 16:43:52,762 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 [2019-02-14 16:43:52,763 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 [2019-02-14 16:43:52,763 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 [2019-02-14 16:43:52,764 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 [2019-02-14 16:43:52,765 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 [2019-02-14 16:43:52,766 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 [2019-02-14 16:43:52,767 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 [2019-02-14 16:43:52,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 0 proven. 1806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:43:52,816 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:43:52,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45, 45] total 134 [2019-02-14 16:43:52,817 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:43:52,817 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 87 [2019-02-14 16:43:52,818 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:43:52,818 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 91 states. [2019-02-14 16:43:53,029 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 173 edges. 173 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:43:53,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 91 states [2019-02-14 16:43:53,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2019-02-14 16:43:53,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2258, Invalid=16102, Unknown=0, NotChecked=0, Total=18360 [2019-02-14 16:43:53,031 INFO L87 Difference]: Start difference. First operand 88 states and 88 transitions. Second operand 91 states. [2019-02-14 16:44:05,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:44:05,399 INFO L93 Difference]: Finished difference Result 92 states and 92 transitions. [2019-02-14 16:44:05,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2019-02-14 16:44:05,399 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 87 [2019-02-14 16:44:05,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:44:05,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-02-14 16:44:05,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 92 transitions. [2019-02-14 16:44:05,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-02-14 16:44:05,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 92 transitions. [2019-02-14 16:44:05,401 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 47 states and 92 transitions. [2019-02-14 16:44:05,507 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 92 edges. 92 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:44:05,508 INFO L225 Difference]: With dead ends: 92 [2019-02-14 16:44:05,509 INFO L226 Difference]: Without dead ends: 91 [2019-02-14 16:44:05,509 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4136 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=2258, Invalid=16102, Unknown=0, NotChecked=0, Total=18360 [2019-02-14 16:44:05,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-02-14 16:44:05,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2019-02-14 16:44:05,593 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:44:05,593 INFO L82 GeneralOperation]: Start isEquivalent. First operand 91 states. Second operand 90 states. [2019-02-14 16:44:05,593 INFO L74 IsIncluded]: Start isIncluded. First operand 91 states. Second operand 90 states. [2019-02-14 16:44:05,593 INFO L87 Difference]: Start difference. First operand 91 states. Second operand 90 states. [2019-02-14 16:44:05,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:44:05,595 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2019-02-14 16:44:05,595 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 91 transitions. [2019-02-14 16:44:05,596 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:44:05,596 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:44:05,596 INFO L74 IsIncluded]: Start isIncluded. First operand 90 states. Second operand 91 states. [2019-02-14 16:44:05,596 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 91 states. [2019-02-14 16:44:05,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:44:05,597 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2019-02-14 16:44:05,598 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 91 transitions. [2019-02-14 16:44:05,598 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:44:05,598 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:44:05,598 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:44:05,598 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:44:05,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-02-14 16:44:05,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2019-02-14 16:44:05,600 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 87 [2019-02-14 16:44:05,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:44:05,600 INFO L480 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2019-02-14 16:44:05,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has 91 states. [2019-02-14 16:44:05,600 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2019-02-14 16:44:05,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-02-14 16:44:05,601 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:44:05,601 INFO L402 BasicCegarLoop]: trace histogram [44, 43, 1, 1] [2019-02-14 16:44:05,601 INFO L423 AbstractCegarLoop]: === Iteration 44 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:44:05,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:44:05,601 INFO L82 PathProgramCache]: Analyzing trace with hash -500569994, now seen corresponding path program 43 times [2019-02-14 16:44:05,601 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:44:05,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:44:05,602 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:44:05,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:44:05,602 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:44:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:44:06,077 WARN L181 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-14 16:44:08,783 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 [2019-02-14 16:44:08,784 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 [2019-02-14 16:44:08,785 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 [2019-02-14 16:44:08,786 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 [2019-02-14 16:44:08,786 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 [2019-02-14 16:44:08,788 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 [2019-02-14 16:44:08,788 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 [2019-02-14 16:44:08,789 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 [2019-02-14 16:44:08,790 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 [2019-02-14 16:44:08,791 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 [2019-02-14 16:44:08,792 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 [2019-02-14 16:44:08,793 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 [2019-02-14 16:44:08,794 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 [2019-02-14 16:44:08,795 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 [2019-02-14 16:44:08,795 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 [2019-02-14 16:44:08,796 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 [2019-02-14 16:44:08,797 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 [2019-02-14 16:44:08,798 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 [2019-02-14 16:44:08,799 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 [2019-02-14 16:44:08,800 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 [2019-02-14 16:44:08,801 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 [2019-02-14 16:44:08,802 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 [2019-02-14 16:44:08,803 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 [2019-02-14 16:44:08,804 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 [2019-02-14 16:44:08,804 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 [2019-02-14 16:44:08,805 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 [2019-02-14 16:44:08,806 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 [2019-02-14 16:44:08,807 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 [2019-02-14 16:44:08,808 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 [2019-02-14 16:44:08,809 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 [2019-02-14 16:44:08,810 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 [2019-02-14 16:44:08,811 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 [2019-02-14 16:44:08,811 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 [2019-02-14 16:44:08,813 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 [2019-02-14 16:44:08,813 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 [2019-02-14 16:44:08,814 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 [2019-02-14 16:44:08,815 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 [2019-02-14 16:44:08,816 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 [2019-02-14 16:44:08,817 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 [2019-02-14 16:44:08,818 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 [2019-02-14 16:44:08,819 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 [2019-02-14 16:44:08,820 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 [2019-02-14 16:44:08,820 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 [2019-02-14 16:44:08,821 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 [2019-02-14 16:44:08,822 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 [2019-02-14 16:44:08,823 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 [2019-02-14 16:44:08,824 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 [2019-02-14 16:44:08,825 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 [2019-02-14 16:44:08,826 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 [2019-02-14 16:44:08,827 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 [2019-02-14 16:44:08,827 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 [2019-02-14 16:44:08,829 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 [2019-02-14 16:44:08,829 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 [2019-02-14 16:44:08,830 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 [2019-02-14 16:44:08,831 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 [2019-02-14 16:44:08,832 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 [2019-02-14 16:44:08,833 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 [2019-02-14 16:44:08,834 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 [2019-02-14 16:44:08,835 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 [2019-02-14 16:44:08,836 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 [2019-02-14 16:44:08,836 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 [2019-02-14 16:44:08,838 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 [2019-02-14 16:44:08,838 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 [2019-02-14 16:44:08,839 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 [2019-02-14 16:44:08,840 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 [2019-02-14 16:44:08,841 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 [2019-02-14 16:44:08,842 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 [2019-02-14 16:44:08,843 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 [2019-02-14 16:44:08,844 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 [2019-02-14 16:44:08,845 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 [2019-02-14 16:44:08,845 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 [2019-02-14 16:44:08,846 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 [2019-02-14 16:44:08,847 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 [2019-02-14 16:44:08,848 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 [2019-02-14 16:44:08,849 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 [2019-02-14 16:44:08,850 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 [2019-02-14 16:44:08,851 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 [2019-02-14 16:44:08,852 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 [2019-02-14 16:44:08,853 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 [2019-02-14 16:44:08,854 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 [2019-02-14 16:44:08,854 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 [2019-02-14 16:44:08,855 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 [2019-02-14 16:44:08,856 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 [2019-02-14 16:44:08,857 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 [2019-02-14 16:44:08,858 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 [2019-02-14 16:44:08,859 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 [2019-02-14 16:44:08,860 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 [2019-02-14 16:44:08,861 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 [2019-02-14 16:44:08,862 INFO L273 TraceCheckUtils]: 88: Hoare triple {25070#(and (<= main_i 176) (<= 44 main_n))} assume !(i <= n * 4); {25024#false} is VALID [2019-02-14 16:44:08,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:44:08,903 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:44:08,903 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:44:08,904 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:44:08,904 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:44:08,904 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:44:08,904 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 [2019-02-14 16:44:08,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:44:08,912 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:44:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:44:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:44:08,950 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:44:08,972 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 [2019-02-14 16:44:08,974 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:44:08,981 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:44:08,981 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:44:08,983 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:44:08,983 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_47]. (and (= main_i 0) (= (store v_main_a_47 (* 4 main_n) 23) main_a)) [2019-02-14 16:44:08,983 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:44:12,072 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 [2019-02-14 16:44:12,075 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:44:12,079 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:44:12,079 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:44:12,082 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:44:12,082 WARN L398 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)))) [2019-02-14 16:44:12,082 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 176) (<= 172 .cse0) (not (= 172 .cse0)))) [2019-02-14 16:44:12,138 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 [2019-02-14 16:44:12,139 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 [2019-02-14 16:44:12,139 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 [2019-02-14 16:44:12,140 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 [2019-02-14 16:44:12,140 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 [2019-02-14 16:44:12,141 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 [2019-02-14 16:44:12,142 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 [2019-02-14 16:44:12,143 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 [2019-02-14 16:44:12,143 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 [2019-02-14 16:44:12,144 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 [2019-02-14 16:44:12,145 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 [2019-02-14 16:44:12,145 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 [2019-02-14 16:44:12,146 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 [2019-02-14 16:44:12,147 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 [2019-02-14 16:44:12,147 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 [2019-02-14 16:44:12,148 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 [2019-02-14 16:44:12,149 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 [2019-02-14 16:44:12,149 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 [2019-02-14 16:44:12,150 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 [2019-02-14 16:44:12,151 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 [2019-02-14 16:44:12,151 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 [2019-02-14 16:44:12,152 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 [2019-02-14 16:44:12,153 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 [2019-02-14 16:44:12,153 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 [2019-02-14 16:44:12,154 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 [2019-02-14 16:44:12,155 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 [2019-02-14 16:44:12,155 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 [2019-02-14 16:44:12,156 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 [2019-02-14 16:44:12,157 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 [2019-02-14 16:44:12,157 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 [2019-02-14 16:44:12,158 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 [2019-02-14 16:44:12,159 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 [2019-02-14 16:44:12,159 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 [2019-02-14 16:44:12,160 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 [2019-02-14 16:44:12,161 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 [2019-02-14 16:44:12,161 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 [2019-02-14 16:44:12,162 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 [2019-02-14 16:44:12,163 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 [2019-02-14 16:44:12,163 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 [2019-02-14 16:44:12,164 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 [2019-02-14 16:44:12,165 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 [2019-02-14 16:44:12,165 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 [2019-02-14 16:44:12,166 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 [2019-02-14 16:44:12,167 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 [2019-02-14 16:44:12,167 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 [2019-02-14 16:44:12,168 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 [2019-02-14 16:44:12,169 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 [2019-02-14 16:44:12,169 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 [2019-02-14 16:44:12,170 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 [2019-02-14 16:44:12,171 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 [2019-02-14 16:44:12,171 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 [2019-02-14 16:44:12,172 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 [2019-02-14 16:44:12,173 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 [2019-02-14 16:44:12,173 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 [2019-02-14 16:44:12,174 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 [2019-02-14 16:44:12,175 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 [2019-02-14 16:44:12,175 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 [2019-02-14 16:44:12,176 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 [2019-02-14 16:44:12,177 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 [2019-02-14 16:44:12,177 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 [2019-02-14 16:44:12,178 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 [2019-02-14 16:44:12,179 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 [2019-02-14 16:44:12,179 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 [2019-02-14 16:44:12,180 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 [2019-02-14 16:44:12,181 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 [2019-02-14 16:44:12,182 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 [2019-02-14 16:44:12,182 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 [2019-02-14 16:44:12,183 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 [2019-02-14 16:44:12,184 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 [2019-02-14 16:44:12,184 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 [2019-02-14 16:44:12,185 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 [2019-02-14 16:44:12,186 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 [2019-02-14 16:44:12,187 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 [2019-02-14 16:44:12,187 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 [2019-02-14 16:44:12,188 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 [2019-02-14 16:44:12,189 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 [2019-02-14 16:44:12,189 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 [2019-02-14 16:44:12,190 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 [2019-02-14 16:44:12,191 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 [2019-02-14 16:44:12,191 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 [2019-02-14 16:44:12,192 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 [2019-02-14 16:44:12,193 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 [2019-02-14 16:44:12,193 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 [2019-02-14 16:44:12,194 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 [2019-02-14 16:44:12,195 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 [2019-02-14 16:44:12,195 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 [2019-02-14 16:44:12,196 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 [2019-02-14 16:44:12,197 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 [2019-02-14 16:44:12,198 INFO L273 TraceCheckUtils]: 88: Hoare triple {25070#(and (<= main_i 176) (<= 44 main_n))} assume !(i <= n * 4); {25024#false} is VALID [2019-02-14 16:44:12,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:44:12,216 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:44:18,111 INFO L273 TraceCheckUtils]: 88: Hoare triple {25383#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {25024#false} is VALID [2019-02-14 16:44:18,112 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 [2019-02-14 16:44:18,113 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 [2019-02-14 16:44:18,113 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 [2019-02-14 16:44:18,114 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 [2019-02-14 16:44:18,114 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 [2019-02-14 16:44:18,115 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 [2019-02-14 16:44:18,116 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 [2019-02-14 16:44:18,116 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 [2019-02-14 16:44:18,117 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 [2019-02-14 16:44:18,118 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 [2019-02-14 16:44:18,119 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 [2019-02-14 16:44:18,119 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 [2019-02-14 16:44:18,120 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 [2019-02-14 16:44:18,121 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 [2019-02-14 16:44:18,122 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 [2019-02-14 16:44:18,122 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 [2019-02-14 16:44:18,124 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 [2019-02-14 16:44:18,124 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 [2019-02-14 16:44:18,125 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 [2019-02-14 16:44:18,126 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 [2019-02-14 16:44:18,127 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 [2019-02-14 16:44:18,127 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 [2019-02-14 16:44:18,128 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 [2019-02-14 16:44:18,129 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 [2019-02-14 16:44:18,130 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 [2019-02-14 16:44:18,130 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 [2019-02-14 16:44:18,132 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 [2019-02-14 16:44:18,132 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 [2019-02-14 16:44:18,133 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 [2019-02-14 16:44:18,134 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 [2019-02-14 16:44:18,135 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 [2019-02-14 16:44:18,135 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 [2019-02-14 16:44:18,136 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 [2019-02-14 16:44:18,137 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 [2019-02-14 16:44:18,138 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 [2019-02-14 16:44:18,138 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 [2019-02-14 16:44:18,139 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 [2019-02-14 16:44:18,140 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 [2019-02-14 16:44:18,141 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 [2019-02-14 16:44:18,142 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 [2019-02-14 16:44:18,143 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 [2019-02-14 16:44:18,143 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 [2019-02-14 16:44:18,144 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 [2019-02-14 16:44:18,145 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 [2019-02-14 16:44:18,146 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 [2019-02-14 16:44:18,146 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 [2019-02-14 16:44:18,147 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 [2019-02-14 16:44:18,148 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 [2019-02-14 16:44:18,149 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 [2019-02-14 16:44:18,149 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 [2019-02-14 16:44:18,151 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 [2019-02-14 16:44:18,151 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 [2019-02-14 16:44:18,152 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 [2019-02-14 16:44:18,153 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 [2019-02-14 16:44:18,154 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 [2019-02-14 16:44:18,154 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 [2019-02-14 16:44:18,155 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 [2019-02-14 16:44:18,156 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 [2019-02-14 16:44:18,157 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 [2019-02-14 16:44:18,157 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 [2019-02-14 16:44:18,158 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 [2019-02-14 16:44:18,159 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 [2019-02-14 16:44:18,160 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 [2019-02-14 16:44:18,161 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 [2019-02-14 16:44:18,162 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 [2019-02-14 16:44:18,162 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 [2019-02-14 16:44:18,163 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 [2019-02-14 16:44:18,164 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 [2019-02-14 16:44:18,165 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 [2019-02-14 16:44:18,165 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 [2019-02-14 16:44:18,166 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 [2019-02-14 16:44:18,167 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 [2019-02-14 16:44:18,168 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 [2019-02-14 16:44:18,168 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 [2019-02-14 16:44:18,169 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 [2019-02-14 16:44:18,170 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 [2019-02-14 16:44:18,171 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 [2019-02-14 16:44:18,172 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 [2019-02-14 16:44:18,173 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 [2019-02-14 16:44:18,173 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 [2019-02-14 16:44:18,174 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 [2019-02-14 16:44:18,175 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 [2019-02-14 16:44:18,176 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 [2019-02-14 16:44:18,176 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 [2019-02-14 16:44:18,177 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 [2019-02-14 16:44:18,178 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 [2019-02-14 16:44:18,179 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 [2019-02-14 16:44:18,180 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 [2019-02-14 16:44:18,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:44:18,248 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:44:18,248 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46] total 137 [2019-02-14 16:44:18,248 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:44:18,249 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 89 [2019-02-14 16:44:18,250 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:44:18,250 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 93 states. [2019-02-14 16:44:18,534 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 177 edges. 177 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:44:18,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 93 states [2019-02-14 16:44:18,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2019-02-14 16:44:18,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2354, Invalid=16828, Unknown=0, NotChecked=0, Total=19182 [2019-02-14 16:44:18,535 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand 93 states. [2019-02-14 16:44:33,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:44:33,186 INFO L93 Difference]: Finished difference Result 94 states and 94 transitions. [2019-02-14 16:44:33,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2019-02-14 16:44:33,186 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 89 [2019-02-14 16:44:33,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:44:33,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-02-14 16:44:33,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 94 transitions. [2019-02-14 16:44:33,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-02-14 16:44:33,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 94 transitions. [2019-02-14 16:44:33,188 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 48 states and 94 transitions. [2019-02-14 16:44:33,321 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 94 edges. 94 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:44:33,322 INFO L225 Difference]: With dead ends: 94 [2019-02-14 16:44:33,323 INFO L226 Difference]: Without dead ends: 93 [2019-02-14 16:44:33,324 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4320 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=2354, Invalid=16828, Unknown=0, NotChecked=0, Total=19182 [2019-02-14 16:44:33,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-02-14 16:44:33,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 92. [2019-02-14 16:44:33,466 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:44:33,466 INFO L82 GeneralOperation]: Start isEquivalent. First operand 93 states. Second operand 92 states. [2019-02-14 16:44:33,466 INFO L74 IsIncluded]: Start isIncluded. First operand 93 states. Second operand 92 states. [2019-02-14 16:44:33,466 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 92 states. [2019-02-14 16:44:33,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:44:33,468 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2019-02-14 16:44:33,468 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 93 transitions. [2019-02-14 16:44:33,468 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:44:33,468 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:44:33,468 INFO L74 IsIncluded]: Start isIncluded. First operand 92 states. Second operand 93 states. [2019-02-14 16:44:33,468 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 93 states. [2019-02-14 16:44:33,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:44:33,469 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2019-02-14 16:44:33,469 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 93 transitions. [2019-02-14 16:44:33,469 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:44:33,470 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:44:33,470 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:44:33,470 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:44:33,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-02-14 16:44:33,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2019-02-14 16:44:33,471 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 89 [2019-02-14 16:44:33,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:44:33,471 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2019-02-14 16:44:33,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has 93 states. [2019-02-14 16:44:33,471 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2019-02-14 16:44:33,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-02-14 16:44:33,471 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:44:33,472 INFO L402 BasicCegarLoop]: trace histogram [45, 44, 1, 1] [2019-02-14 16:44:33,472 INFO L423 AbstractCegarLoop]: === Iteration 45 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:44:33,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:44:33,472 INFO L82 PathProgramCache]: Analyzing trace with hash -11425992, now seen corresponding path program 44 times [2019-02-14 16:44:33,472 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:44:33,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:44:33,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:44:33,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:44:33,473 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:44:33,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:44:33,959 WARN L181 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-14 16:44:36,412 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 [2019-02-14 16:44:36,413 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 [2019-02-14 16:44:36,414 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 [2019-02-14 16:44:36,415 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 [2019-02-14 16:44:36,415 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 [2019-02-14 16:44:36,421 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 [2019-02-14 16:44:36,422 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 [2019-02-14 16:44:36,423 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 [2019-02-14 16:44:36,423 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 [2019-02-14 16:44:36,424 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 [2019-02-14 16:44:36,425 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 [2019-02-14 16:44:36,426 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 [2019-02-14 16:44:36,427 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 [2019-02-14 16:44:36,428 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 [2019-02-14 16:44:36,428 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 [2019-02-14 16:44:36,429 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 [2019-02-14 16:44:36,430 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 [2019-02-14 16:44:36,431 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 [2019-02-14 16:44:36,432 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 [2019-02-14 16:44:36,433 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 [2019-02-14 16:44:36,434 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 [2019-02-14 16:44:36,435 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 [2019-02-14 16:44:36,436 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 [2019-02-14 16:44:36,437 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 [2019-02-14 16:44:36,437 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 [2019-02-14 16:44:36,438 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 [2019-02-14 16:44:36,439 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 [2019-02-14 16:44:36,440 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 [2019-02-14 16:44:36,441 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 [2019-02-14 16:44:36,442 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 [2019-02-14 16:44:36,443 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 [2019-02-14 16:44:36,444 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 [2019-02-14 16:44:36,445 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 [2019-02-14 16:44:36,448 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 [2019-02-14 16:44:36,448 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 [2019-02-14 16:44:36,449 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 [2019-02-14 16:44:36,449 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 [2019-02-14 16:44:36,450 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 [2019-02-14 16:44:36,451 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 [2019-02-14 16:44:36,452 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 [2019-02-14 16:44:36,453 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 [2019-02-14 16:44:36,454 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 [2019-02-14 16:44:36,455 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 [2019-02-14 16:44:36,456 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 [2019-02-14 16:44:36,456 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 [2019-02-14 16:44:36,457 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 [2019-02-14 16:44:36,458 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 [2019-02-14 16:44:36,459 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 [2019-02-14 16:44:36,460 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 [2019-02-14 16:44:36,461 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 [2019-02-14 16:44:36,462 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 [2019-02-14 16:44:36,463 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 [2019-02-14 16:44:36,463 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 [2019-02-14 16:44:36,465 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 [2019-02-14 16:44:36,465 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 [2019-02-14 16:44:36,466 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 [2019-02-14 16:44:36,467 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 [2019-02-14 16:44:36,468 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 [2019-02-14 16:44:36,469 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 [2019-02-14 16:44:36,470 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 [2019-02-14 16:44:36,471 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 [2019-02-14 16:44:36,472 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 [2019-02-14 16:44:36,473 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 [2019-02-14 16:44:36,474 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 [2019-02-14 16:44:36,474 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 [2019-02-14 16:44:36,475 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 [2019-02-14 16:44:36,476 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 [2019-02-14 16:44:36,477 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 [2019-02-14 16:44:36,478 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 [2019-02-14 16:44:36,479 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 [2019-02-14 16:44:36,480 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 [2019-02-14 16:44:36,481 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 [2019-02-14 16:44:36,481 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 [2019-02-14 16:44:36,482 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 [2019-02-14 16:44:36,483 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 [2019-02-14 16:44:36,484 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 [2019-02-14 16:44:36,485 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 [2019-02-14 16:44:36,486 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 [2019-02-14 16:44:36,487 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 [2019-02-14 16:44:36,488 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 [2019-02-14 16:44:36,489 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 [2019-02-14 16:44:36,490 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 [2019-02-14 16:44:36,490 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 [2019-02-14 16:44:36,491 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 [2019-02-14 16:44:36,492 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 [2019-02-14 16:44:36,493 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 [2019-02-14 16:44:36,494 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 [2019-02-14 16:44:36,495 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 [2019-02-14 16:44:36,497 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 [2019-02-14 16:44:36,498 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 [2019-02-14 16:44:36,498 INFO L273 TraceCheckUtils]: 90: Hoare triple {26203#(and (<= main_i 180) (<= 45 main_n))} assume !(i <= n * 4); {26156#false} is VALID [2019-02-14 16:44:36,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:44:36,535 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:44:36,535 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:44:36,536 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:44:36,536 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:44:36,536 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:44:36,536 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 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 [2019-02-14 16:44:36,544 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:44:36,545 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:44:36,608 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 45 check-sat command(s) [2019-02-14 16:44:36,608 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:44:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:44:36,623 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:44:36,639 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 [2019-02-14 16:44:36,640 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:44:36,648 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:44:36,648 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:44:36,651 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:44:36,651 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_48]. (and (= (store v_main_a_48 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:44:36,651 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:44:40,548 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 [2019-02-14 16:44:40,550 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:44:40,557 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:44:40,557 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:44:40,566 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:44:40,566 WARN L398 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))))) [2019-02-14 16:44:40,566 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 176 .cse0)) (<= main_i 180) (<= 176 .cse0))) [2019-02-14 16:44:40,624 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 [2019-02-14 16:44:40,625 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 [2019-02-14 16:44:40,625 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 [2019-02-14 16:44:40,626 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 [2019-02-14 16:44:40,626 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 [2019-02-14 16:44:40,627 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 [2019-02-14 16:44:40,627 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 [2019-02-14 16:44:40,628 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 [2019-02-14 16:44:40,629 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 [2019-02-14 16:44:40,629 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 [2019-02-14 16:44:40,630 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 [2019-02-14 16:44:40,631 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 [2019-02-14 16:44:40,631 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 [2019-02-14 16:44:40,632 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 [2019-02-14 16:44:40,633 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 [2019-02-14 16:44:40,634 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 [2019-02-14 16:44:40,634 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 [2019-02-14 16:44:40,635 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 [2019-02-14 16:44:40,636 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 [2019-02-14 16:44:40,636 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 [2019-02-14 16:44:40,637 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 [2019-02-14 16:44:40,638 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 [2019-02-14 16:44:40,638 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 [2019-02-14 16:44:40,639 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 [2019-02-14 16:44:40,640 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 [2019-02-14 16:44:40,641 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 [2019-02-14 16:44:40,641 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 [2019-02-14 16:44:40,642 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 [2019-02-14 16:44:40,643 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 [2019-02-14 16:44:40,643 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 [2019-02-14 16:44:40,644 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 [2019-02-14 16:44:40,645 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 [2019-02-14 16:44:40,645 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 [2019-02-14 16:44:40,646 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 [2019-02-14 16:44:40,647 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 [2019-02-14 16:44:40,647 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 [2019-02-14 16:44:40,648 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 [2019-02-14 16:44:40,649 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 [2019-02-14 16:44:40,649 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 [2019-02-14 16:44:40,650 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 [2019-02-14 16:44:40,651 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 [2019-02-14 16:44:40,651 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 [2019-02-14 16:44:40,652 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 [2019-02-14 16:44:40,653 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 [2019-02-14 16:44:40,653 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 [2019-02-14 16:44:40,654 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 [2019-02-14 16:44:40,655 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 [2019-02-14 16:44:40,655 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 [2019-02-14 16:44:40,656 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 [2019-02-14 16:44:40,657 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 [2019-02-14 16:44:40,657 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 [2019-02-14 16:44:40,658 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 [2019-02-14 16:44:40,659 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 [2019-02-14 16:44:40,660 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 [2019-02-14 16:44:40,660 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 [2019-02-14 16:44:40,661 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 [2019-02-14 16:44:40,662 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 [2019-02-14 16:44:40,662 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 [2019-02-14 16:44:40,663 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 [2019-02-14 16:44:40,664 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 [2019-02-14 16:44:40,664 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 [2019-02-14 16:44:40,665 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 [2019-02-14 16:44:40,666 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 [2019-02-14 16:44:40,666 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 [2019-02-14 16:44:40,667 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 [2019-02-14 16:44:40,668 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 [2019-02-14 16:44:40,668 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 [2019-02-14 16:44:40,669 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 [2019-02-14 16:44:40,670 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 [2019-02-14 16:44:40,671 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 [2019-02-14 16:44:40,671 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 [2019-02-14 16:44:40,672 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 [2019-02-14 16:44:40,673 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 [2019-02-14 16:44:40,673 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 [2019-02-14 16:44:40,674 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 [2019-02-14 16:44:40,675 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 [2019-02-14 16:44:40,675 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 [2019-02-14 16:44:40,676 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 [2019-02-14 16:44:40,677 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 [2019-02-14 16:44:40,677 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 [2019-02-14 16:44:40,678 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 [2019-02-14 16:44:40,679 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 [2019-02-14 16:44:40,680 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 [2019-02-14 16:44:40,680 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 [2019-02-14 16:44:40,681 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 [2019-02-14 16:44:40,682 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 [2019-02-14 16:44:40,682 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 [2019-02-14 16:44:40,683 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 [2019-02-14 16:44:40,684 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 [2019-02-14 16:44:40,685 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 [2019-02-14 16:44:40,685 INFO L273 TraceCheckUtils]: 90: Hoare triple {26203#(and (<= main_i 180) (<= 45 main_n))} assume !(i <= n * 4); {26156#false} is VALID [2019-02-14 16:44:40,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:44:40,705 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:44:46,692 INFO L273 TraceCheckUtils]: 90: Hoare triple {26523#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {26156#false} is VALID [2019-02-14 16:44:46,693 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 [2019-02-14 16:44:46,694 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 [2019-02-14 16:44:46,694 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 [2019-02-14 16:44:46,695 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 [2019-02-14 16:44:46,695 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 [2019-02-14 16:44:46,696 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 [2019-02-14 16:44:46,696 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 [2019-02-14 16:44:46,697 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 [2019-02-14 16:44:46,698 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 [2019-02-14 16:44:46,699 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 [2019-02-14 16:44:46,700 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 [2019-02-14 16:44:46,700 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 [2019-02-14 16:44:46,701 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 [2019-02-14 16:44:46,702 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 [2019-02-14 16:44:46,703 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 [2019-02-14 16:44:46,703 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 [2019-02-14 16:44:46,704 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 [2019-02-14 16:44:46,705 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 [2019-02-14 16:44:46,706 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 [2019-02-14 16:44:46,707 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 [2019-02-14 16:44:46,708 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 [2019-02-14 16:44:46,708 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 [2019-02-14 16:44:46,709 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 [2019-02-14 16:44:46,710 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 [2019-02-14 16:44:46,711 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 [2019-02-14 16:44:46,711 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 [2019-02-14 16:44:46,712 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 [2019-02-14 16:44:46,713 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 [2019-02-14 16:44:46,714 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 [2019-02-14 16:44:46,714 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 [2019-02-14 16:44:46,715 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 [2019-02-14 16:44:46,716 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 [2019-02-14 16:44:46,717 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 [2019-02-14 16:44:46,718 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 [2019-02-14 16:44:46,719 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 [2019-02-14 16:44:46,719 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 [2019-02-14 16:44:46,720 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 [2019-02-14 16:44:46,721 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 [2019-02-14 16:44:46,722 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 [2019-02-14 16:44:46,722 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 [2019-02-14 16:44:46,723 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 [2019-02-14 16:44:46,724 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 [2019-02-14 16:44:46,725 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 [2019-02-14 16:44:46,725 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 [2019-02-14 16:44:46,727 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 [2019-02-14 16:44:46,727 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 [2019-02-14 16:44:46,728 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 [2019-02-14 16:44:46,729 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 [2019-02-14 16:44:46,730 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 [2019-02-14 16:44:46,730 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 [2019-02-14 16:44:46,731 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 [2019-02-14 16:44:46,732 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 [2019-02-14 16:44:46,733 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 [2019-02-14 16:44:46,733 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 [2019-02-14 16:44:46,735 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 [2019-02-14 16:44:46,735 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 [2019-02-14 16:44:46,736 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 [2019-02-14 16:44:46,737 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 [2019-02-14 16:44:46,738 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 [2019-02-14 16:44:46,738 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 [2019-02-14 16:44:46,739 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 [2019-02-14 16:44:46,740 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 [2019-02-14 16:44:46,741 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 [2019-02-14 16:44:46,742 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 [2019-02-14 16:44:46,743 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 [2019-02-14 16:44:46,743 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 [2019-02-14 16:44:46,744 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 [2019-02-14 16:44:46,745 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 [2019-02-14 16:44:46,746 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 [2019-02-14 16:44:46,746 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 [2019-02-14 16:44:46,747 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 [2019-02-14 16:44:46,748 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 [2019-02-14 16:44:46,749 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 [2019-02-14 16:44:46,749 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 [2019-02-14 16:44:46,751 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 [2019-02-14 16:44:46,751 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 [2019-02-14 16:44:46,752 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 [2019-02-14 16:44:46,753 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 [2019-02-14 16:44:46,754 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 [2019-02-14 16:44:46,754 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 [2019-02-14 16:44:46,755 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 [2019-02-14 16:44:46,756 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 [2019-02-14 16:44:46,757 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 [2019-02-14 16:44:46,757 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 [2019-02-14 16:44:46,758 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 [2019-02-14 16:44:46,759 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 [2019-02-14 16:44:46,760 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 [2019-02-14 16:44:46,760 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 [2019-02-14 16:44:46,762 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 [2019-02-14 16:44:46,762 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 [2019-02-14 16:44:46,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:44:46,816 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:44:46,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 140 [2019-02-14 16:44:46,817 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:44:46,817 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 91 [2019-02-14 16:44:46,817 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:44:46,817 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 95 states. [2019-02-14 16:44:47,057 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 181 edges. 181 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:44:47,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 95 states [2019-02-14 16:44:47,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2019-02-14 16:44:47,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2452, Invalid=17570, Unknown=0, NotChecked=0, Total=20022 [2019-02-14 16:44:47,058 INFO L87 Difference]: Start difference. First operand 92 states and 92 transitions. Second operand 95 states. [2019-02-14 16:45:00,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:45:00,846 INFO L93 Difference]: Finished difference Result 96 states and 96 transitions. [2019-02-14 16:45:00,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2019-02-14 16:45:00,846 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 91 [2019-02-14 16:45:00,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:45:00,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-02-14 16:45:00,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 96 transitions. [2019-02-14 16:45:00,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-02-14 16:45:00,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 96 transitions. [2019-02-14 16:45:00,848 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 49 states and 96 transitions. [2019-02-14 16:45:00,954 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 96 edges. 96 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:45:00,956 INFO L225 Difference]: With dead ends: 96 [2019-02-14 16:45:00,956 INFO L226 Difference]: Without dead ends: 95 [2019-02-14 16:45:00,957 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4508 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=2452, Invalid=17570, Unknown=0, NotChecked=0, Total=20022 [2019-02-14 16:45:00,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-02-14 16:45:01,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 94. [2019-02-14 16:45:01,051 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:45:01,051 INFO L82 GeneralOperation]: Start isEquivalent. First operand 95 states. Second operand 94 states. [2019-02-14 16:45:01,052 INFO L74 IsIncluded]: Start isIncluded. First operand 95 states. Second operand 94 states. [2019-02-14 16:45:01,052 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 94 states. [2019-02-14 16:45:01,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:45:01,053 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2019-02-14 16:45:01,053 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2019-02-14 16:45:01,054 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:45:01,054 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:45:01,054 INFO L74 IsIncluded]: Start isIncluded. First operand 94 states. Second operand 95 states. [2019-02-14 16:45:01,054 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 95 states. [2019-02-14 16:45:01,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:45:01,055 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2019-02-14 16:45:01,056 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2019-02-14 16:45:01,056 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:45:01,056 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:45:01,056 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:45:01,056 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:45:01,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-02-14 16:45:01,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 94 transitions. [2019-02-14 16:45:01,058 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 94 transitions. Word has length 91 [2019-02-14 16:45:01,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:45:01,058 INFO L480 AbstractCegarLoop]: Abstraction has 94 states and 94 transitions. [2019-02-14 16:45:01,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has 95 states. [2019-02-14 16:45:01,058 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 94 transitions. [2019-02-14 16:45:01,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-02-14 16:45:01,059 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:45:01,059 INFO L402 BasicCegarLoop]: trace histogram [46, 45, 1, 1] [2019-02-14 16:45:01,059 INFO L423 AbstractCegarLoop]: === Iteration 46 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:45:01,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:45:01,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1904524666, now seen corresponding path program 45 times [2019-02-14 16:45:01,060 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:45:01,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:45:01,060 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:45:01,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:45:01,061 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:45:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:45:03,785 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 [2019-02-14 16:45:03,786 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 [2019-02-14 16:45:03,787 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 [2019-02-14 16:45:03,787 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 [2019-02-14 16:45:03,789 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 [2019-02-14 16:45:03,790 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 [2019-02-14 16:45:03,792 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 [2019-02-14 16:45:03,794 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 [2019-02-14 16:45:03,797 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 [2019-02-14 16:45:03,797 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 [2019-02-14 16:45:03,800 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 [2019-02-14 16:45:03,800 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 [2019-02-14 16:45:03,802 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 [2019-02-14 16:45:03,803 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 [2019-02-14 16:45:03,804 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 [2019-02-14 16:45:03,805 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 [2019-02-14 16:45:03,806 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 [2019-02-14 16:45:03,807 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 [2019-02-14 16:45:03,808 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 [2019-02-14 16:45:03,809 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 [2019-02-14 16:45:03,810 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 [2019-02-14 16:45:03,811 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 [2019-02-14 16:45:03,813 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 [2019-02-14 16:45:03,814 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 [2019-02-14 16:45:03,816 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 [2019-02-14 16:45:03,817 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 [2019-02-14 16:45:03,818 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 [2019-02-14 16:45:03,819 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 [2019-02-14 16:45:03,820 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 [2019-02-14 16:45:03,821 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 [2019-02-14 16:45:03,822 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 [2019-02-14 16:45:03,823 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 [2019-02-14 16:45:03,824 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 [2019-02-14 16:45:03,825 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 [2019-02-14 16:45:03,826 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 [2019-02-14 16:45:03,827 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 [2019-02-14 16:45:03,828 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 [2019-02-14 16:45:03,829 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 [2019-02-14 16:45:03,830 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 [2019-02-14 16:45:03,831 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 [2019-02-14 16:45:03,832 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 [2019-02-14 16:45:03,833 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 [2019-02-14 16:45:03,834 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 [2019-02-14 16:45:03,835 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 [2019-02-14 16:45:03,836 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 [2019-02-14 16:45:03,839 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 [2019-02-14 16:45:03,842 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 [2019-02-14 16:45:03,842 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 [2019-02-14 16:45:03,844 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 [2019-02-14 16:45:03,844 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 [2019-02-14 16:45:03,846 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 [2019-02-14 16:45:03,847 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 [2019-02-14 16:45:03,848 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 [2019-02-14 16:45:03,849 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 [2019-02-14 16:45:03,850 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 [2019-02-14 16:45:03,851 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 [2019-02-14 16:45:03,852 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 [2019-02-14 16:45:03,853 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 [2019-02-14 16:45:03,854 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 [2019-02-14 16:45:03,855 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 [2019-02-14 16:45:03,856 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 [2019-02-14 16:45:03,857 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 [2019-02-14 16:45:03,858 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 [2019-02-14 16:45:03,859 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 [2019-02-14 16:45:03,860 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 [2019-02-14 16:45:03,861 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 [2019-02-14 16:45:03,862 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 [2019-02-14 16:45:03,863 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 [2019-02-14 16:45:03,864 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 [2019-02-14 16:45:03,865 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 [2019-02-14 16:45:03,866 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 [2019-02-14 16:45:03,867 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 [2019-02-14 16:45:03,868 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 [2019-02-14 16:45:03,869 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 [2019-02-14 16:45:03,870 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 [2019-02-14 16:45:03,871 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 [2019-02-14 16:45:03,872 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 [2019-02-14 16:45:03,873 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 [2019-02-14 16:45:03,874 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 [2019-02-14 16:45:03,875 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 [2019-02-14 16:45:03,876 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 [2019-02-14 16:45:03,877 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 [2019-02-14 16:45:03,878 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 [2019-02-14 16:45:03,879 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 [2019-02-14 16:45:03,880 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 [2019-02-14 16:45:03,881 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 [2019-02-14 16:45:03,885 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 [2019-02-14 16:45:03,886 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 [2019-02-14 16:45:03,888 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 [2019-02-14 16:45:03,888 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 [2019-02-14 16:45:03,891 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 [2019-02-14 16:45:03,891 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 [2019-02-14 16:45:03,893 INFO L273 TraceCheckUtils]: 92: Hoare triple {27361#(and (<= main_i 184) (<= 46 main_n))} assume !(i <= n * 4); {27313#false} is VALID [2019-02-14 16:45:03,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 2070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:45:03,934 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:45:03,934 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:45:03,934 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:45:03,934 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:45:03,935 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:45:03,935 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 [2019-02-14 16:45:03,943 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:45:03,943 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:45:03,969 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:45:03,969 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:45:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:45:03,988 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:45:04,001 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 [2019-02-14 16:45:04,004 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:45:04,015 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:45:04,015 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:45:04,017 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:45:04,018 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_49]. (and (= main_a (store v_main_a_49 (* 4 main_n) 23)) (= main_i 0)) [2019-02-14 16:45:04,018 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:45:07,517 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 [2019-02-14 16:45:07,519 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:45:07,525 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:45:07,525 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:45:07,528 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:45:07,528 WARN L398 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)))) [2019-02-14 16:45:07,528 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 180 .cse0) (<= main_i 184) (not (= 180 .cse0)))) [2019-02-14 16:45:07,585 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 [2019-02-14 16:45:07,585 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 [2019-02-14 16:45:07,586 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 [2019-02-14 16:45:07,586 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 [2019-02-14 16:45:07,587 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 [2019-02-14 16:45:07,587 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 [2019-02-14 16:45:07,587 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 [2019-02-14 16:45:07,588 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 [2019-02-14 16:45:07,589 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 [2019-02-14 16:45:07,589 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 [2019-02-14 16:45:07,590 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 [2019-02-14 16:45:07,591 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 [2019-02-14 16:45:07,591 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 [2019-02-14 16:45:07,592 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 [2019-02-14 16:45:07,593 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 [2019-02-14 16:45:07,593 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 [2019-02-14 16:45:07,594 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 [2019-02-14 16:45:07,595 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 [2019-02-14 16:45:07,595 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 [2019-02-14 16:45:07,596 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 [2019-02-14 16:45:07,597 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 [2019-02-14 16:45:07,597 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 [2019-02-14 16:45:07,598 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 [2019-02-14 16:45:07,599 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 [2019-02-14 16:45:07,599 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 [2019-02-14 16:45:07,600 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 [2019-02-14 16:45:07,601 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 [2019-02-14 16:45:07,602 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 [2019-02-14 16:45:07,602 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 [2019-02-14 16:45:07,603 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 [2019-02-14 16:45:07,604 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 [2019-02-14 16:45:07,604 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 [2019-02-14 16:45:07,605 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 [2019-02-14 16:45:07,606 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 [2019-02-14 16:45:07,606 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 [2019-02-14 16:45:07,607 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 [2019-02-14 16:45:07,608 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 [2019-02-14 16:45:07,608 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 [2019-02-14 16:45:07,609 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 [2019-02-14 16:45:07,610 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 [2019-02-14 16:45:07,610 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 [2019-02-14 16:45:07,611 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 [2019-02-14 16:45:07,612 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 [2019-02-14 16:45:07,612 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 [2019-02-14 16:45:07,613 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 [2019-02-14 16:45:07,614 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 [2019-02-14 16:45:07,614 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 [2019-02-14 16:45:07,615 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 [2019-02-14 16:45:07,616 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 [2019-02-14 16:45:07,616 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 [2019-02-14 16:45:07,617 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 [2019-02-14 16:45:07,618 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 [2019-02-14 16:45:07,619 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 [2019-02-14 16:45:07,619 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 [2019-02-14 16:45:07,620 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 [2019-02-14 16:45:07,621 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 [2019-02-14 16:45:07,621 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 [2019-02-14 16:45:07,622 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 [2019-02-14 16:45:07,623 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 [2019-02-14 16:45:07,623 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 [2019-02-14 16:45:07,624 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 [2019-02-14 16:45:07,625 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 [2019-02-14 16:45:07,625 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 [2019-02-14 16:45:07,626 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 [2019-02-14 16:45:07,627 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 [2019-02-14 16:45:07,628 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 [2019-02-14 16:45:07,629 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 [2019-02-14 16:45:07,629 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 [2019-02-14 16:45:07,630 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 [2019-02-14 16:45:07,631 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 [2019-02-14 16:45:07,632 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 [2019-02-14 16:45:07,632 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 [2019-02-14 16:45:07,633 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 [2019-02-14 16:45:07,634 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 [2019-02-14 16:45:07,635 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 [2019-02-14 16:45:07,635 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 [2019-02-14 16:45:07,636 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 [2019-02-14 16:45:07,637 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 [2019-02-14 16:45:07,637 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 [2019-02-14 16:45:07,638 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 [2019-02-14 16:45:07,639 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 [2019-02-14 16:45:07,639 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 [2019-02-14 16:45:07,640 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 [2019-02-14 16:45:07,641 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 [2019-02-14 16:45:07,641 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 [2019-02-14 16:45:07,642 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 [2019-02-14 16:45:07,643 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 [2019-02-14 16:45:07,643 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 [2019-02-14 16:45:07,644 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 [2019-02-14 16:45:07,645 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 [2019-02-14 16:45:07,645 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 [2019-02-14 16:45:07,646 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 [2019-02-14 16:45:07,647 INFO L273 TraceCheckUtils]: 92: Hoare triple {27361#(and (<= main_i 184) (<= 46 main_n))} assume !(i <= n * 4); {27313#false} is VALID [2019-02-14 16:45:07,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 2070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:45:07,667 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:45:13,786 INFO L273 TraceCheckUtils]: 92: Hoare triple {27688#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {27313#false} is VALID [2019-02-14 16:45:13,787 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 [2019-02-14 16:45:13,788 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 [2019-02-14 16:45:13,788 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 [2019-02-14 16:45:13,789 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 [2019-02-14 16:45:13,789 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 [2019-02-14 16:45:13,790 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 [2019-02-14 16:45:13,791 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 [2019-02-14 16:45:13,792 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 [2019-02-14 16:45:13,793 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 [2019-02-14 16:45:13,793 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 [2019-02-14 16:45:13,794 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 [2019-02-14 16:45:13,795 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 [2019-02-14 16:45:13,796 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 [2019-02-14 16:45:13,797 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 [2019-02-14 16:45:13,798 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 [2019-02-14 16:45:13,798 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 [2019-02-14 16:45:13,799 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 [2019-02-14 16:45:13,800 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 [2019-02-14 16:45:13,801 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 [2019-02-14 16:45:13,802 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 [2019-02-14 16:45:13,803 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 [2019-02-14 16:45:13,803 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 [2019-02-14 16:45:13,804 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 [2019-02-14 16:45:13,805 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 [2019-02-14 16:45:13,806 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 [2019-02-14 16:45:13,807 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 [2019-02-14 16:45:13,808 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 [2019-02-14 16:45:13,808 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 [2019-02-14 16:45:13,810 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 [2019-02-14 16:45:13,810 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 [2019-02-14 16:45:13,811 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 [2019-02-14 16:45:13,812 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 [2019-02-14 16:45:13,813 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 [2019-02-14 16:45:13,813 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 [2019-02-14 16:45:13,815 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 [2019-02-14 16:45:13,815 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 [2019-02-14 16:45:13,816 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 [2019-02-14 16:45:13,817 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 [2019-02-14 16:45:13,818 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 [2019-02-14 16:45:13,818 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 [2019-02-14 16:45:13,820 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 [2019-02-14 16:45:13,820 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 [2019-02-14 16:45:13,821 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 [2019-02-14 16:45:13,822 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 [2019-02-14 16:45:13,823 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 [2019-02-14 16:45:13,823 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 [2019-02-14 16:45:13,825 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 [2019-02-14 16:45:13,825 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 [2019-02-14 16:45:13,826 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 [2019-02-14 16:45:13,827 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 [2019-02-14 16:45:13,828 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 [2019-02-14 16:45:13,828 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 [2019-02-14 16:45:13,830 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 [2019-02-14 16:45:13,830 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 [2019-02-14 16:45:13,831 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 [2019-02-14 16:45:13,832 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 [2019-02-14 16:45:13,833 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 [2019-02-14 16:45:13,834 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 [2019-02-14 16:45:13,835 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 [2019-02-14 16:45:13,835 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 [2019-02-14 16:45:13,836 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 [2019-02-14 16:45:13,837 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 [2019-02-14 16:45:13,838 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 [2019-02-14 16:45:13,839 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 [2019-02-14 16:45:13,840 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 [2019-02-14 16:45:13,840 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 [2019-02-14 16:45:13,842 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 [2019-02-14 16:45:13,842 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 [2019-02-14 16:45:13,843 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 [2019-02-14 16:45:13,844 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 [2019-02-14 16:45:13,845 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 [2019-02-14 16:45:13,845 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 [2019-02-14 16:45:13,847 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 [2019-02-14 16:45:13,847 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 [2019-02-14 16:45:13,848 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 [2019-02-14 16:45:13,849 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 [2019-02-14 16:45:13,850 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 [2019-02-14 16:45:13,851 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 [2019-02-14 16:45:13,852 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 [2019-02-14 16:45:13,852 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 [2019-02-14 16:45:13,853 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 [2019-02-14 16:45:13,854 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 [2019-02-14 16:45:13,855 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 [2019-02-14 16:45:13,856 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 [2019-02-14 16:45:13,857 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 [2019-02-14 16:45:13,857 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 [2019-02-14 16:45:13,859 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 [2019-02-14 16:45:13,859 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 [2019-02-14 16:45:13,860 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 [2019-02-14 16:45:13,861 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 [2019-02-14 16:45:13,862 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 [2019-02-14 16:45:13,863 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 [2019-02-14 16:45:13,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 2070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:45:13,913 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:45:13,913 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 143 [2019-02-14 16:45:13,914 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:45:13,914 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 93 [2019-02-14 16:45:13,914 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:45:13,914 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 97 states. [2019-02-14 16:45:14,179 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 185 edges. 185 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:45:14,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 97 states [2019-02-14 16:45:14,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2019-02-14 16:45:14,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2552, Invalid=18328, Unknown=0, NotChecked=0, Total=20880 [2019-02-14 16:45:14,180 INFO L87 Difference]: Start difference. First operand 94 states and 94 transitions. Second operand 97 states. [2019-02-14 16:45:29,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:45:29,086 INFO L93 Difference]: Finished difference Result 98 states and 98 transitions. [2019-02-14 16:45:29,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2019-02-14 16:45:29,087 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 93 [2019-02-14 16:45:29,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:45:29,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-02-14 16:45:29,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 98 transitions. [2019-02-14 16:45:29,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-02-14 16:45:29,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 98 transitions. [2019-02-14 16:45:29,089 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 50 states and 98 transitions. [2019-02-14 16:45:29,195 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 98 edges. 98 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:45:29,196 INFO L225 Difference]: With dead ends: 98 [2019-02-14 16:45:29,196 INFO L226 Difference]: Without dead ends: 97 [2019-02-14 16:45:29,197 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 [2019-02-14 16:45:29,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-02-14 16:45:29,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2019-02-14 16:45:29,292 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:45:29,292 INFO L82 GeneralOperation]: Start isEquivalent. First operand 97 states. Second operand 96 states. [2019-02-14 16:45:29,292 INFO L74 IsIncluded]: Start isIncluded. First operand 97 states. Second operand 96 states. [2019-02-14 16:45:29,292 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 96 states. [2019-02-14 16:45:29,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:45:29,294 INFO L93 Difference]: Finished difference Result 97 states and 97 transitions. [2019-02-14 16:45:29,294 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2019-02-14 16:45:29,294 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:45:29,294 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:45:29,294 INFO L74 IsIncluded]: Start isIncluded. First operand 96 states. Second operand 97 states. [2019-02-14 16:45:29,295 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 97 states. [2019-02-14 16:45:29,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:45:29,296 INFO L93 Difference]: Finished difference Result 97 states and 97 transitions. [2019-02-14 16:45:29,296 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2019-02-14 16:45:29,296 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:45:29,296 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:45:29,296 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:45:29,296 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:45:29,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-02-14 16:45:29,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2019-02-14 16:45:29,297 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 93 [2019-02-14 16:45:29,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:45:29,298 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2019-02-14 16:45:29,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has 97 states. [2019-02-14 16:45:29,298 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2019-02-14 16:45:29,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-02-14 16:45:29,298 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:45:29,298 INFO L402 BasicCegarLoop]: trace histogram [47, 46, 1, 1] [2019-02-14 16:45:29,298 INFO L423 AbstractCegarLoop]: === Iteration 47 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:45:29,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:45:29,299 INFO L82 PathProgramCache]: Analyzing trace with hash 592137020, now seen corresponding path program 46 times [2019-02-14 16:45:29,299 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:45:29,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:45:29,299 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:45:29,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:45:29,299 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:45:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:45:29,743 WARN L181 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-14 16:45:32,228 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 [2019-02-14 16:45:32,229 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 [2019-02-14 16:45:32,230 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 [2019-02-14 16:45:32,231 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 [2019-02-14 16:45:32,232 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 [2019-02-14 16:45:32,233 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 [2019-02-14 16:45:32,234 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 [2019-02-14 16:45:32,235 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 [2019-02-14 16:45:32,236 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 [2019-02-14 16:45:32,237 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 [2019-02-14 16:45:32,237 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 [2019-02-14 16:45:32,238 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 [2019-02-14 16:45:32,239 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 [2019-02-14 16:45:32,240 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 [2019-02-14 16:45:32,241 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 [2019-02-14 16:45:32,242 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 [2019-02-14 16:45:32,243 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 [2019-02-14 16:45:32,244 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 [2019-02-14 16:45:32,245 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 [2019-02-14 16:45:32,246 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 [2019-02-14 16:45:32,246 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 [2019-02-14 16:45:32,247 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 [2019-02-14 16:45:32,248 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 [2019-02-14 16:45:32,249 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 [2019-02-14 16:45:32,250 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 [2019-02-14 16:45:32,251 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 [2019-02-14 16:45:32,252 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 [2019-02-14 16:45:32,253 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 [2019-02-14 16:45:32,253 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 [2019-02-14 16:45:32,254 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 [2019-02-14 16:45:32,255 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 [2019-02-14 16:45:32,256 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 [2019-02-14 16:45:32,257 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 [2019-02-14 16:45:32,258 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 [2019-02-14 16:45:32,259 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 [2019-02-14 16:45:32,260 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 [2019-02-14 16:45:32,260 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 [2019-02-14 16:45:32,262 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 [2019-02-14 16:45:32,263 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 [2019-02-14 16:45:32,264 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 [2019-02-14 16:45:32,265 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 [2019-02-14 16:45:32,266 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 [2019-02-14 16:45:32,267 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 [2019-02-14 16:45:32,268 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 [2019-02-14 16:45:32,269 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 [2019-02-14 16:45:32,270 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 [2019-02-14 16:45:32,270 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 [2019-02-14 16:45:32,271 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 [2019-02-14 16:45:32,272 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 [2019-02-14 16:45:32,273 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 [2019-02-14 16:45:32,274 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 [2019-02-14 16:45:32,275 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 [2019-02-14 16:45:32,276 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 [2019-02-14 16:45:32,277 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 [2019-02-14 16:45:32,278 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 [2019-02-14 16:45:32,279 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 [2019-02-14 16:45:32,279 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 [2019-02-14 16:45:32,280 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 [2019-02-14 16:45:32,281 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 [2019-02-14 16:45:32,282 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 [2019-02-14 16:45:32,283 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 [2019-02-14 16:45:32,284 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 [2019-02-14 16:45:32,285 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 [2019-02-14 16:45:32,286 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 [2019-02-14 16:45:32,287 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 [2019-02-14 16:45:32,288 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 [2019-02-14 16:45:32,288 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 [2019-02-14 16:45:32,289 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 [2019-02-14 16:45:32,290 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 [2019-02-14 16:45:32,291 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 [2019-02-14 16:45:32,292 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 [2019-02-14 16:45:32,293 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 [2019-02-14 16:45:32,294 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 [2019-02-14 16:45:32,295 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 [2019-02-14 16:45:32,295 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 [2019-02-14 16:45:32,296 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 [2019-02-14 16:45:32,297 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 [2019-02-14 16:45:32,298 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 [2019-02-14 16:45:32,299 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 [2019-02-14 16:45:32,300 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 [2019-02-14 16:45:32,301 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 [2019-02-14 16:45:32,302 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 [2019-02-14 16:45:32,303 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 [2019-02-14 16:45:32,304 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 [2019-02-14 16:45:32,305 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 [2019-02-14 16:45:32,306 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 [2019-02-14 16:45:32,306 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 [2019-02-14 16:45:32,308 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 [2019-02-14 16:45:32,308 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 [2019-02-14 16:45:32,309 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 [2019-02-14 16:45:32,310 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 [2019-02-14 16:45:32,311 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 [2019-02-14 16:45:32,312 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 [2019-02-14 16:45:32,313 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 [2019-02-14 16:45:32,314 INFO L273 TraceCheckUtils]: 94: Hoare triple {28544#(and (<= main_i 188) (< 46 main_n))} assume !(i <= n * 4); {28495#false} is VALID [2019-02-14 16:45:32,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:45:32,357 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:45:32,357 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:45:32,357 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:45:32,357 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:45:32,357 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:45:32,357 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 [2019-02-14 16:45:32,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:45:32,365 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:45:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:45:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:45:32,406 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:45:32,421 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 [2019-02-14 16:45:32,422 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:45:32,429 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:45:32,429 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:45:32,430 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:45:32,431 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_50]. (and (= (store v_main_a_50 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:45:32,431 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:45:36,310 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 [2019-02-14 16:45:36,312 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:45:36,319 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:45:36,319 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:45:36,321 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:45:36,322 WARN L398 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)))) [2019-02-14 16:45:36,322 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 184 .cse0)) (<= main_i 188) (<= 184 .cse0))) [2019-02-14 16:45:36,382 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 [2019-02-14 16:45:36,382 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 [2019-02-14 16:45:36,383 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 [2019-02-14 16:45:36,384 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 [2019-02-14 16:45:36,384 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 [2019-02-14 16:45:36,385 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 [2019-02-14 16:45:36,386 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 [2019-02-14 16:45:36,386 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 [2019-02-14 16:45:36,387 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 [2019-02-14 16:45:36,388 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 [2019-02-14 16:45:36,388 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 [2019-02-14 16:45:36,389 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 [2019-02-14 16:45:36,390 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 [2019-02-14 16:45:36,390 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 [2019-02-14 16:45:36,391 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 [2019-02-14 16:45:36,392 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 [2019-02-14 16:45:36,392 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 [2019-02-14 16:45:36,393 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 [2019-02-14 16:45:36,394 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 [2019-02-14 16:45:36,394 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 [2019-02-14 16:45:36,395 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 [2019-02-14 16:45:36,396 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 [2019-02-14 16:45:36,396 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 [2019-02-14 16:45:36,397 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 [2019-02-14 16:45:36,398 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 [2019-02-14 16:45:36,398 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 [2019-02-14 16:45:36,399 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 [2019-02-14 16:45:36,400 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 [2019-02-14 16:45:36,400 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 [2019-02-14 16:45:36,401 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 [2019-02-14 16:45:36,402 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 [2019-02-14 16:45:36,402 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 [2019-02-14 16:45:36,403 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 [2019-02-14 16:45:36,404 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 [2019-02-14 16:45:36,404 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 [2019-02-14 16:45:36,405 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 [2019-02-14 16:45:36,406 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 [2019-02-14 16:45:36,406 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 [2019-02-14 16:45:36,407 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 [2019-02-14 16:45:36,408 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 [2019-02-14 16:45:36,408 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 [2019-02-14 16:45:36,409 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 [2019-02-14 16:45:36,410 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 [2019-02-14 16:45:36,410 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 [2019-02-14 16:45:36,411 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 [2019-02-14 16:45:36,412 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 [2019-02-14 16:45:36,412 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 [2019-02-14 16:45:36,413 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 [2019-02-14 16:45:36,414 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 [2019-02-14 16:45:36,415 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 [2019-02-14 16:45:36,415 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 [2019-02-14 16:45:36,416 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 [2019-02-14 16:45:36,417 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 [2019-02-14 16:45:36,417 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 [2019-02-14 16:45:36,418 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 [2019-02-14 16:45:36,419 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 [2019-02-14 16:45:36,419 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 [2019-02-14 16:45:36,420 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 [2019-02-14 16:45:36,421 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 [2019-02-14 16:45:36,421 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 [2019-02-14 16:45:36,422 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 [2019-02-14 16:45:36,423 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 [2019-02-14 16:45:36,423 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 [2019-02-14 16:45:36,424 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 [2019-02-14 16:45:36,425 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 [2019-02-14 16:45:36,425 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 [2019-02-14 16:45:36,426 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 [2019-02-14 16:45:36,427 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 [2019-02-14 16:45:36,427 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 [2019-02-14 16:45:36,428 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 [2019-02-14 16:45:36,429 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 [2019-02-14 16:45:36,430 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 [2019-02-14 16:45:36,430 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 [2019-02-14 16:45:36,431 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 [2019-02-14 16:45:36,432 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 [2019-02-14 16:45:36,433 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 [2019-02-14 16:45:36,433 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 [2019-02-14 16:45:36,434 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 [2019-02-14 16:45:36,435 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 [2019-02-14 16:45:36,435 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 [2019-02-14 16:45:36,436 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 [2019-02-14 16:45:36,437 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 [2019-02-14 16:45:36,438 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 [2019-02-14 16:45:36,438 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 [2019-02-14 16:45:36,439 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 [2019-02-14 16:45:36,440 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 [2019-02-14 16:45:36,440 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 [2019-02-14 16:45:36,441 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 [2019-02-14 16:45:36,442 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 [2019-02-14 16:45:36,443 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 [2019-02-14 16:45:36,443 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 [2019-02-14 16:45:36,444 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 [2019-02-14 16:45:36,445 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 [2019-02-14 16:45:36,446 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 [2019-02-14 16:45:36,446 INFO L273 TraceCheckUtils]: 94: Hoare triple {28544#(and (<= main_i 188) (< 46 main_n))} assume !(i <= n * 4); {28495#false} is VALID [2019-02-14 16:45:36,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:45:36,468 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:45:42,756 INFO L273 TraceCheckUtils]: 94: Hoare triple {28878#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {28495#false} is VALID [2019-02-14 16:45:42,757 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 [2019-02-14 16:45:42,758 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 [2019-02-14 16:45:42,758 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 [2019-02-14 16:45:42,759 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 [2019-02-14 16:45:42,759 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 [2019-02-14 16:45:42,760 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 [2019-02-14 16:45:42,760 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 [2019-02-14 16:45:42,761 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 [2019-02-14 16:45:42,762 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 [2019-02-14 16:45:42,762 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 [2019-02-14 16:45:42,763 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 [2019-02-14 16:45:42,764 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 [2019-02-14 16:45:42,765 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 [2019-02-14 16:45:42,766 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 [2019-02-14 16:45:42,767 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 [2019-02-14 16:45:42,767 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 [2019-02-14 16:45:42,768 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 [2019-02-14 16:45:42,769 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 [2019-02-14 16:45:42,770 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 [2019-02-14 16:45:42,770 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 [2019-02-14 16:45:42,771 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 [2019-02-14 16:45:42,772 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 [2019-02-14 16:45:42,773 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 [2019-02-14 16:45:42,774 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 [2019-02-14 16:45:42,775 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 [2019-02-14 16:45:42,775 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 [2019-02-14 16:45:42,776 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 [2019-02-14 16:45:42,777 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 [2019-02-14 16:45:42,778 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 [2019-02-14 16:45:42,778 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 [2019-02-14 16:45:42,779 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 [2019-02-14 16:45:42,780 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 [2019-02-14 16:45:42,781 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 [2019-02-14 16:45:42,781 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 [2019-02-14 16:45:42,782 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 [2019-02-14 16:45:42,783 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 [2019-02-14 16:45:42,784 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 [2019-02-14 16:45:42,785 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 [2019-02-14 16:45:42,786 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 [2019-02-14 16:45:42,786 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 [2019-02-14 16:45:42,787 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 [2019-02-14 16:45:42,788 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 [2019-02-14 16:45:42,789 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 [2019-02-14 16:45:42,789 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 [2019-02-14 16:45:42,790 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 [2019-02-14 16:45:42,791 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 [2019-02-14 16:45:42,792 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 [2019-02-14 16:45:42,792 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 [2019-02-14 16:45:42,793 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 [2019-02-14 16:45:42,794 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 [2019-02-14 16:45:42,795 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 [2019-02-14 16:45:42,795 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 [2019-02-14 16:45:42,797 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 [2019-02-14 16:45:42,797 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 [2019-02-14 16:45:42,798 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 [2019-02-14 16:45:42,799 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 [2019-02-14 16:45:42,800 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 [2019-02-14 16:45:42,800 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 [2019-02-14 16:45:42,801 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 [2019-02-14 16:45:42,802 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 [2019-02-14 16:45:42,803 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 [2019-02-14 16:45:42,803 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 [2019-02-14 16:45:42,804 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 [2019-02-14 16:45:42,805 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 [2019-02-14 16:45:42,806 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 [2019-02-14 16:45:42,807 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 [2019-02-14 16:45:42,808 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 [2019-02-14 16:45:42,808 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 [2019-02-14 16:45:42,809 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 [2019-02-14 16:45:42,810 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 [2019-02-14 16:45:42,811 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 [2019-02-14 16:45:42,811 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 [2019-02-14 16:45:42,813 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 [2019-02-14 16:45:42,813 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 [2019-02-14 16:45:42,814 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 [2019-02-14 16:45:42,815 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 [2019-02-14 16:45:42,816 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 [2019-02-14 16:45:42,816 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 [2019-02-14 16:45:42,817 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 [2019-02-14 16:45:42,818 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 [2019-02-14 16:45:42,819 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 [2019-02-14 16:45:42,819 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 [2019-02-14 16:45:42,821 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 [2019-02-14 16:45:42,821 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 [2019-02-14 16:45:42,822 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 [2019-02-14 16:45:42,823 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 [2019-02-14 16:45:42,824 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 [2019-02-14 16:45:42,824 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 [2019-02-14 16:45:42,825 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 [2019-02-14 16:45:42,826 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 [2019-02-14 16:45:42,827 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 [2019-02-14 16:45:42,827 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 [2019-02-14 16:45:42,828 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 [2019-02-14 16:45:42,829 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 [2019-02-14 16:45:42,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:45:42,880 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:45:42,880 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 146 [2019-02-14 16:45:42,880 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:45:42,881 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 95 [2019-02-14 16:45:42,881 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:45:42,881 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 99 states. [2019-02-14 16:45:43,106 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 189 edges. 189 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:45:43,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 99 states [2019-02-14 16:45:43,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2019-02-14 16:45:43,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2654, Invalid=19102, Unknown=0, NotChecked=0, Total=21756 [2019-02-14 16:45:43,108 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand 99 states. [2019-02-14 16:45:56,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:45:56,685 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2019-02-14 16:45:56,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2019-02-14 16:45:56,685 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 95 [2019-02-14 16:45:56,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:45:56,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-02-14 16:45:56,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 100 transitions. [2019-02-14 16:45:56,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-02-14 16:45:56,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 100 transitions. [2019-02-14 16:45:56,687 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 51 states and 100 transitions. [2019-02-14 16:45:56,794 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 100 edges. 100 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:45:56,795 INFO L225 Difference]: With dead ends: 100 [2019-02-14 16:45:56,796 INFO L226 Difference]: Without dead ends: 99 [2019-02-14 16:45:56,797 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4896 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=2654, Invalid=19102, Unknown=0, NotChecked=0, Total=21756 [2019-02-14 16:45:56,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-02-14 16:45:56,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2019-02-14 16:45:56,895 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:45:56,895 INFO L82 GeneralOperation]: Start isEquivalent. First operand 99 states. Second operand 98 states. [2019-02-14 16:45:56,895 INFO L74 IsIncluded]: Start isIncluded. First operand 99 states. Second operand 98 states. [2019-02-14 16:45:56,895 INFO L87 Difference]: Start difference. First operand 99 states. Second operand 98 states. [2019-02-14 16:45:56,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:45:56,897 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2019-02-14 16:45:56,897 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2019-02-14 16:45:56,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:45:56,897 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:45:56,897 INFO L74 IsIncluded]: Start isIncluded. First operand 98 states. Second operand 99 states. [2019-02-14 16:45:56,897 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 99 states. [2019-02-14 16:45:56,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:45:56,898 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2019-02-14 16:45:56,898 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2019-02-14 16:45:56,899 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:45:56,899 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:45:56,899 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:45:56,899 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:45:56,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-02-14 16:45:56,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 98 transitions. [2019-02-14 16:45:56,900 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 98 transitions. Word has length 95 [2019-02-14 16:45:56,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:45:56,900 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 98 transitions. [2019-02-14 16:45:56,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has 99 states. [2019-02-14 16:45:56,900 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 98 transitions. [2019-02-14 16:45:56,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-02-14 16:45:56,901 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:45:56,901 INFO L402 BasicCegarLoop]: trace histogram [48, 47, 1, 1] [2019-02-14 16:45:56,901 INFO L423 AbstractCegarLoop]: === Iteration 48 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:45:56,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:45:56,901 INFO L82 PathProgramCache]: Analyzing trace with hash 2107994238, now seen corresponding path program 47 times [2019-02-14 16:45:56,901 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:45:56,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:45:56,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:45:56,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:45:56,902 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:45:56,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:45:59,766 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 [2019-02-14 16:45:59,768 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 [2019-02-14 16:45:59,768 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 [2019-02-14 16:45:59,770 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 [2019-02-14 16:45:59,770 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 [2019-02-14 16:45:59,771 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 [2019-02-14 16:45:59,772 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 [2019-02-14 16:45:59,773 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 [2019-02-14 16:45:59,774 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 [2019-02-14 16:45:59,775 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 [2019-02-14 16:45:59,776 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 [2019-02-14 16:45:59,777 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 [2019-02-14 16:45:59,778 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 [2019-02-14 16:45:59,779 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 [2019-02-14 16:45:59,780 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 [2019-02-14 16:45:59,781 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 [2019-02-14 16:45:59,782 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 [2019-02-14 16:45:59,783 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 [2019-02-14 16:45:59,783 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 [2019-02-14 16:45:59,785 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 [2019-02-14 16:45:59,785 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 [2019-02-14 16:45:59,786 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 [2019-02-14 16:45:59,787 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 [2019-02-14 16:45:59,788 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 [2019-02-14 16:45:59,789 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 [2019-02-14 16:45:59,790 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 [2019-02-14 16:45:59,791 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 [2019-02-14 16:45:59,792 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 [2019-02-14 16:45:59,793 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 [2019-02-14 16:45:59,794 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 [2019-02-14 16:45:59,795 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 [2019-02-14 16:45:59,796 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 [2019-02-14 16:45:59,797 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 [2019-02-14 16:45:59,798 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 [2019-02-14 16:45:59,799 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 [2019-02-14 16:45:59,800 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 [2019-02-14 16:45:59,800 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 [2019-02-14 16:45:59,802 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 [2019-02-14 16:45:59,802 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 [2019-02-14 16:45:59,803 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 [2019-02-14 16:45:59,804 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 [2019-02-14 16:45:59,805 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 [2019-02-14 16:45:59,806 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 [2019-02-14 16:45:59,807 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 [2019-02-14 16:45:59,808 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 [2019-02-14 16:45:59,809 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 [2019-02-14 16:45:59,810 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 [2019-02-14 16:45:59,811 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 [2019-02-14 16:45:59,812 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 [2019-02-14 16:45:59,813 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 [2019-02-14 16:45:59,814 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 [2019-02-14 16:45:59,815 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 [2019-02-14 16:45:59,815 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 [2019-02-14 16:45:59,817 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 [2019-02-14 16:45:59,817 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 [2019-02-14 16:45:59,819 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 [2019-02-14 16:45:59,819 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 [2019-02-14 16:45:59,820 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 [2019-02-14 16:45:59,821 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 [2019-02-14 16:45:59,822 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 [2019-02-14 16:45:59,823 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 [2019-02-14 16:45:59,824 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 [2019-02-14 16:45:59,825 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 [2019-02-14 16:45:59,826 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 [2019-02-14 16:45:59,827 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 [2019-02-14 16:45:59,828 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 [2019-02-14 16:45:59,829 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 [2019-02-14 16:45:59,830 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 [2019-02-14 16:45:59,830 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 [2019-02-14 16:45:59,831 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 [2019-02-14 16:45:59,832 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 [2019-02-14 16:45:59,833 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 [2019-02-14 16:45:59,834 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 [2019-02-14 16:45:59,835 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 [2019-02-14 16:45:59,836 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 [2019-02-14 16:45:59,837 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 [2019-02-14 16:45:59,838 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 [2019-02-14 16:45:59,839 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 [2019-02-14 16:45:59,840 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 [2019-02-14 16:45:59,841 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 [2019-02-14 16:45:59,842 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 [2019-02-14 16:45:59,843 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 [2019-02-14 16:45:59,844 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 [2019-02-14 16:45:59,845 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 [2019-02-14 16:45:59,845 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 [2019-02-14 16:45:59,846 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 [2019-02-14 16:45:59,847 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 [2019-02-14 16:45:59,848 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 [2019-02-14 16:45:59,849 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 [2019-02-14 16:45:59,850 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 [2019-02-14 16:45:59,851 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 [2019-02-14 16:45:59,852 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 [2019-02-14 16:45:59,853 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 [2019-02-14 16:45:59,854 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 [2019-02-14 16:45:59,855 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 [2019-02-14 16:45:59,856 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 [2019-02-14 16:45:59,857 INFO L273 TraceCheckUtils]: 96: Hoare triple {29752#(and (<= main_i 192) (<= 48 main_n))} assume !(i <= n * 4); {29702#false} is VALID [2019-02-14 16:45:59,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 2256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:45:59,897 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:45:59,897 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:45:59,897 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:45:59,897 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:45:59,897 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:45:59,897 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 [2019-02-14 16:45:59,907 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:45:59,907 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:45:59,977 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 48 check-sat command(s) [2019-02-14 16:45:59,978 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:46:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:46:00,038 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:46:00,158 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 [2019-02-14 16:46:00,188 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:46:00,277 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:46:00,277 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:46:00,291 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:46:00,291 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_51]. (and (= (store v_main_a_51 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:46:00,292 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:46:04,691 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 [2019-02-14 16:46:04,693 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:46:04,699 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:46:04,699 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:46:04,701 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:46:04,702 WARN L398 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)))) [2019-02-14 16:46:04,702 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 188 .cse0) (not (= 188 .cse0)) (<= main_i 192))) [2019-02-14 16:46:04,758 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 [2019-02-14 16:46:04,759 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 [2019-02-14 16:46:04,759 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 [2019-02-14 16:46:04,759 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 [2019-02-14 16:46:04,760 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 [2019-02-14 16:46:04,761 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 [2019-02-14 16:46:04,761 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 [2019-02-14 16:46:04,762 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 [2019-02-14 16:46:04,763 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 [2019-02-14 16:46:04,763 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 [2019-02-14 16:46:04,764 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 [2019-02-14 16:46:04,765 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 [2019-02-14 16:46:04,765 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 [2019-02-14 16:46:04,766 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 [2019-02-14 16:46:04,767 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 [2019-02-14 16:46:04,767 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 [2019-02-14 16:46:04,768 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 [2019-02-14 16:46:04,769 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 [2019-02-14 16:46:04,769 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 [2019-02-14 16:46:04,770 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 [2019-02-14 16:46:04,771 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 [2019-02-14 16:46:04,771 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 [2019-02-14 16:46:04,772 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 [2019-02-14 16:46:04,773 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 [2019-02-14 16:46:04,773 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 [2019-02-14 16:46:04,774 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 [2019-02-14 16:46:04,775 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 [2019-02-14 16:46:04,775 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 [2019-02-14 16:46:04,776 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 [2019-02-14 16:46:04,777 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 [2019-02-14 16:46:04,777 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 [2019-02-14 16:46:04,778 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 [2019-02-14 16:46:04,779 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 [2019-02-14 16:46:04,779 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 [2019-02-14 16:46:04,780 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 [2019-02-14 16:46:04,781 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 [2019-02-14 16:46:04,781 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 [2019-02-14 16:46:04,782 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 [2019-02-14 16:46:04,783 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 [2019-02-14 16:46:04,783 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 [2019-02-14 16:46:04,784 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 [2019-02-14 16:46:04,785 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 [2019-02-14 16:46:04,785 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 [2019-02-14 16:46:04,786 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 [2019-02-14 16:46:04,787 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 [2019-02-14 16:46:04,787 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 [2019-02-14 16:46:04,788 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 [2019-02-14 16:46:04,789 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 [2019-02-14 16:46:04,789 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 [2019-02-14 16:46:04,790 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 [2019-02-14 16:46:04,791 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 [2019-02-14 16:46:04,791 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 [2019-02-14 16:46:04,792 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 [2019-02-14 16:46:04,793 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 [2019-02-14 16:46:04,793 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 [2019-02-14 16:46:04,794 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 [2019-02-14 16:46:04,795 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 [2019-02-14 16:46:04,795 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 [2019-02-14 16:46:04,796 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 [2019-02-14 16:46:04,797 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 [2019-02-14 16:46:04,797 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 [2019-02-14 16:46:04,798 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 [2019-02-14 16:46:04,799 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 [2019-02-14 16:46:04,800 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 [2019-02-14 16:46:04,800 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 [2019-02-14 16:46:04,801 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 [2019-02-14 16:46:04,802 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 [2019-02-14 16:46:04,802 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 [2019-02-14 16:46:04,803 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 [2019-02-14 16:46:04,804 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 [2019-02-14 16:46:04,804 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 [2019-02-14 16:46:04,805 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 [2019-02-14 16:46:04,806 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 [2019-02-14 16:46:04,807 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 [2019-02-14 16:46:04,807 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 [2019-02-14 16:46:04,808 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 [2019-02-14 16:46:04,809 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 [2019-02-14 16:46:04,809 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 [2019-02-14 16:46:04,810 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 [2019-02-14 16:46:04,811 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 [2019-02-14 16:46:04,811 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 [2019-02-14 16:46:04,812 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 [2019-02-14 16:46:04,813 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 [2019-02-14 16:46:04,813 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 [2019-02-14 16:46:04,814 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 [2019-02-14 16:46:04,815 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 [2019-02-14 16:46:04,816 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 [2019-02-14 16:46:04,816 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 [2019-02-14 16:46:04,817 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 [2019-02-14 16:46:04,818 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 [2019-02-14 16:46:04,818 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 [2019-02-14 16:46:04,819 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 [2019-02-14 16:46:04,820 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 [2019-02-14 16:46:04,820 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 [2019-02-14 16:46:04,821 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 [2019-02-14 16:46:04,822 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 [2019-02-14 16:46:04,822 INFO L273 TraceCheckUtils]: 96: Hoare triple {29752#(and (<= main_i 192) (<= 48 main_n))} assume !(i <= n * 4); {29702#false} is VALID [2019-02-14 16:46:04,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 2256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:46:04,844 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:46:11,622 INFO L273 TraceCheckUtils]: 96: Hoare triple {30093#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {29702#false} is VALID [2019-02-14 16:46:11,623 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 [2019-02-14 16:46:11,624 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 [2019-02-14 16:46:11,625 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 [2019-02-14 16:46:11,625 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 [2019-02-14 16:46:11,626 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 [2019-02-14 16:46:11,627 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 [2019-02-14 16:46:11,628 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 [2019-02-14 16:46:11,628 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 [2019-02-14 16:46:11,629 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 [2019-02-14 16:46:11,630 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 [2019-02-14 16:46:11,631 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 [2019-02-14 16:46:11,632 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 [2019-02-14 16:46:11,633 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 [2019-02-14 16:46:11,633 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 [2019-02-14 16:46:11,634 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 [2019-02-14 16:46:11,635 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 [2019-02-14 16:46:11,636 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 [2019-02-14 16:46:11,636 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 [2019-02-14 16:46:11,637 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 [2019-02-14 16:46:11,638 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 [2019-02-14 16:46:11,639 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 [2019-02-14 16:46:11,640 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 [2019-02-14 16:46:11,641 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 [2019-02-14 16:46:11,641 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 [2019-02-14 16:46:11,642 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 [2019-02-14 16:46:11,643 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 [2019-02-14 16:46:11,644 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 [2019-02-14 16:46:11,644 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 [2019-02-14 16:46:11,645 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 [2019-02-14 16:46:11,646 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 [2019-02-14 16:46:11,647 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 [2019-02-14 16:46:11,647 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 [2019-02-14 16:46:11,648 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 [2019-02-14 16:46:11,649 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 [2019-02-14 16:46:11,650 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 [2019-02-14 16:46:11,651 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 [2019-02-14 16:46:11,652 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 [2019-02-14 16:46:11,652 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 [2019-02-14 16:46:11,653 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 [2019-02-14 16:46:11,654 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 [2019-02-14 16:46:11,655 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 [2019-02-14 16:46:11,655 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 [2019-02-14 16:46:11,656 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 [2019-02-14 16:46:11,657 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 [2019-02-14 16:46:11,658 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 [2019-02-14 16:46:11,658 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 [2019-02-14 16:46:11,660 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 [2019-02-14 16:46:11,660 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 [2019-02-14 16:46:11,661 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 [2019-02-14 16:46:11,662 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 [2019-02-14 16:46:11,663 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 [2019-02-14 16:46:11,663 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 [2019-02-14 16:46:11,664 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 [2019-02-14 16:46:11,665 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 [2019-02-14 16:46:11,666 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 [2019-02-14 16:46:11,666 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 [2019-02-14 16:46:11,667 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 [2019-02-14 16:46:11,668 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 [2019-02-14 16:46:11,669 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 [2019-02-14 16:46:11,670 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 [2019-02-14 16:46:11,671 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 [2019-02-14 16:46:11,671 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 [2019-02-14 16:46:11,672 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 [2019-02-14 16:46:11,673 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 [2019-02-14 16:46:11,674 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 [2019-02-14 16:46:11,674 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 [2019-02-14 16:46:11,675 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 [2019-02-14 16:46:11,676 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 [2019-02-14 16:46:11,677 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 [2019-02-14 16:46:11,678 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 [2019-02-14 16:46:11,679 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 [2019-02-14 16:46:11,679 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 [2019-02-14 16:46:11,680 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 [2019-02-14 16:46:11,681 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 [2019-02-14 16:46:11,682 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 [2019-02-14 16:46:11,682 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 [2019-02-14 16:46:11,683 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 [2019-02-14 16:46:11,684 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 [2019-02-14 16:46:11,685 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 [2019-02-14 16:46:11,686 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 [2019-02-14 16:46:11,687 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 [2019-02-14 16:46:11,687 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 [2019-02-14 16:46:11,688 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 [2019-02-14 16:46:11,689 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 [2019-02-14 16:46:11,690 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 [2019-02-14 16:46:11,690 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 [2019-02-14 16:46:11,691 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 [2019-02-14 16:46:11,692 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 [2019-02-14 16:46:11,693 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 [2019-02-14 16:46:11,693 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 [2019-02-14 16:46:11,694 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 [2019-02-14 16:46:11,695 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 [2019-02-14 16:46:11,696 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 [2019-02-14 16:46:11,697 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 [2019-02-14 16:46:11,698 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 [2019-02-14 16:46:11,699 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 [2019-02-14 16:46:11,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 2256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:46:11,751 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:46:11,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 149 [2019-02-14 16:46:11,751 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:46:11,751 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 97 [2019-02-14 16:46:11,751 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:46:11,752 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 101 states. [2019-02-14 16:46:11,986 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 193 edges. 193 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:46:11,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 101 states [2019-02-14 16:46:11,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2019-02-14 16:46:11,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2758, Invalid=19892, Unknown=0, NotChecked=0, Total=22650 [2019-02-14 16:46:11,987 INFO L87 Difference]: Start difference. First operand 98 states and 98 transitions. Second operand 101 states. [2019-02-14 16:46:24,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:46:24,196 INFO L93 Difference]: Finished difference Result 102 states and 102 transitions. [2019-02-14 16:46:24,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2019-02-14 16:46:24,197 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 97 [2019-02-14 16:46:24,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:46:24,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-02-14 16:46:24,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 102 transitions. [2019-02-14 16:46:24,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-02-14 16:46:24,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 102 transitions. [2019-02-14 16:46:24,199 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 52 states and 102 transitions. [2019-02-14 16:46:24,310 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 102 edges. 102 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:46:24,312 INFO L225 Difference]: With dead ends: 102 [2019-02-14 16:46:24,312 INFO L226 Difference]: Without dead ends: 101 [2019-02-14 16:46:24,313 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5096 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=2758, Invalid=19892, Unknown=0, NotChecked=0, Total=22650 [2019-02-14 16:46:24,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-02-14 16:46:24,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2019-02-14 16:46:24,422 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:46:24,422 INFO L82 GeneralOperation]: Start isEquivalent. First operand 101 states. Second operand 100 states. [2019-02-14 16:46:24,423 INFO L74 IsIncluded]: Start isIncluded. First operand 101 states. Second operand 100 states. [2019-02-14 16:46:24,423 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 100 states. [2019-02-14 16:46:24,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:46:24,424 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2019-02-14 16:46:24,425 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2019-02-14 16:46:24,425 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:46:24,425 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:46:24,425 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 101 states. [2019-02-14 16:46:24,425 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 101 states. [2019-02-14 16:46:24,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:46:24,426 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2019-02-14 16:46:24,427 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2019-02-14 16:46:24,427 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:46:24,427 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:46:24,427 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:46:24,427 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:46:24,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-02-14 16:46:24,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 100 transitions. [2019-02-14 16:46:24,429 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 100 transitions. Word has length 97 [2019-02-14 16:46:24,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:46:24,429 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 100 transitions. [2019-02-14 16:46:24,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has 101 states. [2019-02-14 16:46:24,429 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 100 transitions. [2019-02-14 16:46:24,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-02-14 16:46:24,430 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:46:24,430 INFO L402 BasicCegarLoop]: trace histogram [49, 48, 1, 1] [2019-02-14 16:46:24,430 INFO L423 AbstractCegarLoop]: === Iteration 49 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:46:24,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:46:24,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1442099904, now seen corresponding path program 48 times [2019-02-14 16:46:24,431 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:46:24,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:46:24,431 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:46:24,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:46:24,432 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:46:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:46:27,455 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 [2019-02-14 16:46:27,457 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 [2019-02-14 16:46:27,457 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 [2019-02-14 16:46:27,458 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 [2019-02-14 16:46:27,459 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 [2019-02-14 16:46:27,460 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 [2019-02-14 16:46:27,461 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 [2019-02-14 16:46:27,462 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 [2019-02-14 16:46:27,463 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 [2019-02-14 16:46:27,464 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 [2019-02-14 16:46:27,464 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 [2019-02-14 16:46:27,466 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 [2019-02-14 16:46:27,466 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 [2019-02-14 16:46:27,467 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 [2019-02-14 16:46:27,468 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 [2019-02-14 16:46:27,469 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 [2019-02-14 16:46:27,470 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 [2019-02-14 16:46:27,471 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 [2019-02-14 16:46:27,472 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 [2019-02-14 16:46:27,473 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 [2019-02-14 16:46:27,473 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 [2019-02-14 16:46:27,474 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 [2019-02-14 16:46:27,475 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 [2019-02-14 16:46:27,476 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 [2019-02-14 16:46:27,477 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 [2019-02-14 16:46:27,478 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 [2019-02-14 16:46:27,479 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 [2019-02-14 16:46:27,480 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 [2019-02-14 16:46:27,480 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 [2019-02-14 16:46:27,481 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 [2019-02-14 16:46:27,482 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 [2019-02-14 16:46:27,483 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 [2019-02-14 16:46:27,484 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 [2019-02-14 16:46:27,485 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 [2019-02-14 16:46:27,486 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 [2019-02-14 16:46:27,487 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 [2019-02-14 16:46:27,487 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 [2019-02-14 16:46:27,488 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 [2019-02-14 16:46:27,489 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 [2019-02-14 16:46:27,490 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 [2019-02-14 16:46:27,491 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 [2019-02-14 16:46:27,492 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 [2019-02-14 16:46:27,493 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 [2019-02-14 16:46:27,494 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 [2019-02-14 16:46:27,494 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 [2019-02-14 16:46:27,495 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 [2019-02-14 16:46:27,496 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 [2019-02-14 16:46:27,497 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 [2019-02-14 16:46:27,498 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 [2019-02-14 16:46:27,499 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 [2019-02-14 16:46:27,500 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 [2019-02-14 16:46:27,501 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 [2019-02-14 16:46:27,501 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 [2019-02-14 16:46:27,502 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 [2019-02-14 16:46:27,503 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 [2019-02-14 16:46:27,504 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 [2019-02-14 16:46:27,505 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 [2019-02-14 16:46:27,506 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 [2019-02-14 16:46:27,507 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 [2019-02-14 16:46:27,508 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 [2019-02-14 16:46:27,508 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 [2019-02-14 16:46:27,509 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 [2019-02-14 16:46:27,510 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 [2019-02-14 16:46:27,511 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 [2019-02-14 16:46:27,512 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 [2019-02-14 16:46:27,513 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 [2019-02-14 16:46:27,514 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 [2019-02-14 16:46:27,515 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 [2019-02-14 16:46:27,515 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 [2019-02-14 16:46:27,516 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 [2019-02-14 16:46:27,517 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 [2019-02-14 16:46:27,518 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 [2019-02-14 16:46:27,519 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 [2019-02-14 16:46:27,520 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 [2019-02-14 16:46:27,521 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 [2019-02-14 16:46:27,522 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 [2019-02-14 16:46:27,522 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 [2019-02-14 16:46:27,523 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 [2019-02-14 16:46:27,524 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 [2019-02-14 16:46:27,525 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 [2019-02-14 16:46:27,526 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 [2019-02-14 16:46:27,527 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 [2019-02-14 16:46:27,528 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 [2019-02-14 16:46:27,529 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 [2019-02-14 16:46:27,529 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 [2019-02-14 16:46:27,531 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 [2019-02-14 16:46:27,531 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 [2019-02-14 16:46:27,532 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 [2019-02-14 16:46:27,533 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 [2019-02-14 16:46:27,534 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 [2019-02-14 16:46:27,535 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 [2019-02-14 16:46:27,536 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 [2019-02-14 16:46:27,536 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 [2019-02-14 16:46:27,537 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 [2019-02-14 16:46:27,538 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 [2019-02-14 16:46:27,539 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 [2019-02-14 16:46:27,540 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 [2019-02-14 16:46:27,541 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 [2019-02-14 16:46:27,542 INFO L273 TraceCheckUtils]: 98: Hoare triple {30985#(and (< 48 main_n) (<= main_i 196))} assume !(i <= n * 4); {30934#false} is VALID [2019-02-14 16:46:27,584 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:46:27,584 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:46:27,584 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:46:27,584 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:46:27,584 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:46:27,584 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:46:27,584 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 [2019-02-14 16:46:27,593 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:46:27,593 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:46:27,620 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:46:27,620 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:46:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:46:27,639 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:46:27,657 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 [2019-02-14 16:46:27,659 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:46:27,664 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:46:27,664 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:46:27,666 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:46:27,666 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_52]. (and (= main_a (store v_main_a_52 (* 4 main_n) 23)) (= main_i 0)) [2019-02-14 16:46:27,666 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:46:31,639 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 [2019-02-14 16:46:31,641 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:46:31,650 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:46:31,650 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:46:31,652 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:46:31,652 WARN L398 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))) [2019-02-14 16:46:31,652 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 192 .cse0)) (<= 192 .cse0) (<= main_i 196))) [2019-02-14 16:46:31,711 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 [2019-02-14 16:46:31,712 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 [2019-02-14 16:46:31,712 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 [2019-02-14 16:46:31,713 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 [2019-02-14 16:46:31,714 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 [2019-02-14 16:46:31,714 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 [2019-02-14 16:46:31,715 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 [2019-02-14 16:46:31,716 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 [2019-02-14 16:46:31,716 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 [2019-02-14 16:46:31,717 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 [2019-02-14 16:46:31,718 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 [2019-02-14 16:46:31,718 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 [2019-02-14 16:46:31,719 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 [2019-02-14 16:46:31,720 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 [2019-02-14 16:46:31,720 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 [2019-02-14 16:46:31,721 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 [2019-02-14 16:46:31,722 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 [2019-02-14 16:46:31,723 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 [2019-02-14 16:46:31,723 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 [2019-02-14 16:46:31,724 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 [2019-02-14 16:46:31,724 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 [2019-02-14 16:46:31,725 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 [2019-02-14 16:46:31,726 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 [2019-02-14 16:46:31,727 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 [2019-02-14 16:46:31,727 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 [2019-02-14 16:46:31,728 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 [2019-02-14 16:46:31,728 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 [2019-02-14 16:46:31,729 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 [2019-02-14 16:46:31,730 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 [2019-02-14 16:46:31,731 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 [2019-02-14 16:46:31,731 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 [2019-02-14 16:46:31,732 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 [2019-02-14 16:46:31,733 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 [2019-02-14 16:46:31,733 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 [2019-02-14 16:46:31,734 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 [2019-02-14 16:46:31,735 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 [2019-02-14 16:46:31,735 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 [2019-02-14 16:46:31,736 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 [2019-02-14 16:46:31,737 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 [2019-02-14 16:46:31,737 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 [2019-02-14 16:46:31,738 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 [2019-02-14 16:46:31,739 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 [2019-02-14 16:46:31,739 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 [2019-02-14 16:46:31,740 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 [2019-02-14 16:46:31,741 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 [2019-02-14 16:46:31,742 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 [2019-02-14 16:46:31,742 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 [2019-02-14 16:46:31,743 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 [2019-02-14 16:46:31,743 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 [2019-02-14 16:46:31,744 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 [2019-02-14 16:46:31,745 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 [2019-02-14 16:46:31,745 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 [2019-02-14 16:46:31,746 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 [2019-02-14 16:46:31,747 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 [2019-02-14 16:46:31,747 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 [2019-02-14 16:46:31,748 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 [2019-02-14 16:46:31,749 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 [2019-02-14 16:46:31,749 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 [2019-02-14 16:46:31,750 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 [2019-02-14 16:46:31,751 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 [2019-02-14 16:46:31,751 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 [2019-02-14 16:46:31,752 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 [2019-02-14 16:46:31,753 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 [2019-02-14 16:46:31,754 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 [2019-02-14 16:46:31,754 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 [2019-02-14 16:46:31,755 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 [2019-02-14 16:46:31,756 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 [2019-02-14 16:46:31,756 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 [2019-02-14 16:46:31,757 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 [2019-02-14 16:46:31,758 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 [2019-02-14 16:46:31,758 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 [2019-02-14 16:46:31,759 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 [2019-02-14 16:46:31,760 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 [2019-02-14 16:46:31,761 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 [2019-02-14 16:46:31,761 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 [2019-02-14 16:46:31,762 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 [2019-02-14 16:46:31,763 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 [2019-02-14 16:46:31,763 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 [2019-02-14 16:46:31,764 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 [2019-02-14 16:46:31,765 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 [2019-02-14 16:46:31,765 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 [2019-02-14 16:46:31,766 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 [2019-02-14 16:46:31,767 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 [2019-02-14 16:46:31,768 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 [2019-02-14 16:46:31,768 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 [2019-02-14 16:46:31,769 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 [2019-02-14 16:46:31,770 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 [2019-02-14 16:46:31,770 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 [2019-02-14 16:46:31,771 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 [2019-02-14 16:46:31,772 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 [2019-02-14 16:46:31,772 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 [2019-02-14 16:46:31,773 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 [2019-02-14 16:46:31,774 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 [2019-02-14 16:46:31,774 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 [2019-02-14 16:46:31,775 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 [2019-02-14 16:46:31,776 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 [2019-02-14 16:46:31,776 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 [2019-02-14 16:46:31,777 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 [2019-02-14 16:46:31,778 INFO L273 TraceCheckUtils]: 98: Hoare triple {30985#(and (< 48 main_n) (<= main_i 196))} assume !(i <= n * 4); {30934#false} is VALID [2019-02-14 16:46:31,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:46:31,802 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:46:38,687 INFO L273 TraceCheckUtils]: 98: Hoare triple {31333#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {30934#false} is VALID [2019-02-14 16:46:38,688 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 [2019-02-14 16:46:38,689 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 [2019-02-14 16:46:38,690 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 [2019-02-14 16:46:38,690 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 [2019-02-14 16:46:38,691 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 [2019-02-14 16:46:38,691 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 [2019-02-14 16:46:38,692 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 [2019-02-14 16:46:38,693 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 [2019-02-14 16:46:38,694 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 [2019-02-14 16:46:38,694 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 [2019-02-14 16:46:38,695 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 [2019-02-14 16:46:38,696 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 [2019-02-14 16:46:38,697 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 [2019-02-14 16:46:38,698 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 [2019-02-14 16:46:38,699 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 [2019-02-14 16:46:38,699 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 [2019-02-14 16:46:38,700 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 [2019-02-14 16:46:38,701 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 [2019-02-14 16:46:38,702 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 [2019-02-14 16:46:38,703 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 [2019-02-14 16:46:38,704 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 [2019-02-14 16:46:38,704 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 [2019-02-14 16:46:38,705 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 [2019-02-14 16:46:38,706 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 [2019-02-14 16:46:38,707 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 [2019-02-14 16:46:38,708 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 [2019-02-14 16:46:38,709 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 [2019-02-14 16:46:38,709 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 [2019-02-14 16:46:38,710 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 [2019-02-14 16:46:38,711 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 [2019-02-14 16:46:38,712 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 [2019-02-14 16:46:38,713 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 [2019-02-14 16:46:38,714 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 [2019-02-14 16:46:38,714 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 [2019-02-14 16:46:38,715 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 [2019-02-14 16:46:38,716 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 [2019-02-14 16:46:38,717 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 [2019-02-14 16:46:38,718 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 [2019-02-14 16:46:38,719 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 [2019-02-14 16:46:38,719 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 [2019-02-14 16:46:38,720 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 [2019-02-14 16:46:38,721 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 [2019-02-14 16:46:38,722 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 [2019-02-14 16:46:38,723 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 [2019-02-14 16:46:38,724 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 [2019-02-14 16:46:38,724 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 [2019-02-14 16:46:38,726 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 [2019-02-14 16:46:38,726 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 [2019-02-14 16:46:38,727 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 [2019-02-14 16:46:38,728 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 [2019-02-14 16:46:38,729 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 [2019-02-14 16:46:38,729 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 [2019-02-14 16:46:38,731 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 [2019-02-14 16:46:38,731 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 [2019-02-14 16:46:38,732 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 [2019-02-14 16:46:38,733 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 [2019-02-14 16:46:38,734 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 [2019-02-14 16:46:38,734 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 [2019-02-14 16:46:38,736 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 [2019-02-14 16:46:38,736 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 [2019-02-14 16:46:38,737 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 [2019-02-14 16:46:38,738 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 [2019-02-14 16:46:38,739 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 [2019-02-14 16:46:38,739 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 [2019-02-14 16:46:38,741 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 [2019-02-14 16:46:38,741 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 [2019-02-14 16:46:38,742 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 [2019-02-14 16:46:38,743 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 [2019-02-14 16:46:38,744 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 [2019-02-14 16:46:38,745 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 [2019-02-14 16:46:38,746 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 [2019-02-14 16:46:38,746 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 [2019-02-14 16:46:38,747 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 [2019-02-14 16:46:38,748 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 [2019-02-14 16:46:38,749 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 [2019-02-14 16:46:38,750 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 [2019-02-14 16:46:38,751 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 [2019-02-14 16:46:38,751 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 [2019-02-14 16:46:38,752 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 [2019-02-14 16:46:38,753 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 [2019-02-14 16:46:38,754 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 [2019-02-14 16:46:38,755 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 [2019-02-14 16:46:38,756 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 [2019-02-14 16:46:38,756 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 [2019-02-14 16:46:38,757 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 [2019-02-14 16:46:38,758 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 [2019-02-14 16:46:38,759 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 [2019-02-14 16:46:38,760 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 [2019-02-14 16:46:38,761 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 [2019-02-14 16:46:38,761 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 [2019-02-14 16:46:38,762 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 [2019-02-14 16:46:38,763 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 [2019-02-14 16:46:38,764 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 [2019-02-14 16:46:38,765 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 [2019-02-14 16:46:38,766 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 [2019-02-14 16:46:38,766 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 [2019-02-14 16:46:38,767 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 [2019-02-14 16:46:38,769 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 [2019-02-14 16:46:38,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:46:38,824 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:46:38,825 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51, 51] total 152 [2019-02-14 16:46:38,825 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:46:38,825 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 99 [2019-02-14 16:46:38,825 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:46:38,825 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 103 states. [2019-02-14 16:46:39,074 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 197 edges. 197 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:46:39,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 103 states [2019-02-14 16:46:39,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2019-02-14 16:46:39,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2864, Invalid=20698, Unknown=0, NotChecked=0, Total=23562 [2019-02-14 16:46:39,075 INFO L87 Difference]: Start difference. First operand 100 states and 100 transitions. Second operand 103 states. [2019-02-14 16:47:00,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:47:00,217 INFO L93 Difference]: Finished difference Result 104 states and 104 transitions. [2019-02-14 16:47:00,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2019-02-14 16:47:00,217 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 99 [2019-02-14 16:47:00,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:47:00,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-02-14 16:47:00,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 104 transitions. [2019-02-14 16:47:00,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-02-14 16:47:00,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 104 transitions. [2019-02-14 16:47:00,219 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 53 states and 104 transitions. [2019-02-14 16:47:00,347 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 104 edges. 104 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:47:00,349 INFO L225 Difference]: With dead ends: 104 [2019-02-14 16:47:00,349 INFO L226 Difference]: Without dead ends: 103 [2019-02-14 16:47:00,350 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5300 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=2864, Invalid=20698, Unknown=0, NotChecked=0, Total=23562 [2019-02-14 16:47:00,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-02-14 16:47:00,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2019-02-14 16:47:00,444 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:47:00,444 INFO L82 GeneralOperation]: Start isEquivalent. First operand 103 states. Second operand 102 states. [2019-02-14 16:47:00,444 INFO L74 IsIncluded]: Start isIncluded. First operand 103 states. Second operand 102 states. [2019-02-14 16:47:00,445 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 102 states. [2019-02-14 16:47:00,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:47:00,446 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2019-02-14 16:47:00,446 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 103 transitions. [2019-02-14 16:47:00,447 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:47:00,447 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:47:00,447 INFO L74 IsIncluded]: Start isIncluded. First operand 102 states. Second operand 103 states. [2019-02-14 16:47:00,447 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 103 states. [2019-02-14 16:47:00,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:47:00,448 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2019-02-14 16:47:00,448 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 103 transitions. [2019-02-14 16:47:00,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:47:00,448 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:47:00,448 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:47:00,449 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:47:00,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-02-14 16:47:00,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2019-02-14 16:47:00,450 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 99 [2019-02-14 16:47:00,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:47:00,450 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2019-02-14 16:47:00,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has 103 states. [2019-02-14 16:47:00,450 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2019-02-14 16:47:00,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-02-14 16:47:00,450 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:47:00,450 INFO L402 BasicCegarLoop]: trace histogram [50, 49, 1, 1] [2019-02-14 16:47:00,451 INFO L423 AbstractCegarLoop]: === Iteration 50 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:47:00,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:47:00,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1416429954, now seen corresponding path program 49 times [2019-02-14 16:47:00,451 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:47:00,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:47:00,452 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:47:00,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:47:00,452 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:47:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:47:03,629 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 [2019-02-14 16:47:03,630 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 [2019-02-14 16:47:03,631 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 [2019-02-14 16:47:03,632 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 [2019-02-14 16:47:03,633 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 [2019-02-14 16:47:03,634 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 [2019-02-14 16:47:03,635 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 [2019-02-14 16:47:03,636 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 [2019-02-14 16:47:03,637 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 [2019-02-14 16:47:03,645 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 [2019-02-14 16:47:03,646 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 [2019-02-14 16:47:03,647 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 [2019-02-14 16:47:03,647 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 [2019-02-14 16:47:03,648 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 [2019-02-14 16:47:03,649 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 [2019-02-14 16:47:03,650 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 [2019-02-14 16:47:03,651 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 [2019-02-14 16:47:03,652 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 [2019-02-14 16:47:03,653 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 [2019-02-14 16:47:03,654 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 [2019-02-14 16:47:03,654 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 [2019-02-14 16:47:03,656 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 [2019-02-14 16:47:03,656 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 [2019-02-14 16:47:03,657 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 [2019-02-14 16:47:03,658 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 [2019-02-14 16:47:03,659 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 [2019-02-14 16:47:03,660 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 [2019-02-14 16:47:03,661 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 [2019-02-14 16:47:03,662 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 [2019-02-14 16:47:03,663 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 [2019-02-14 16:47:03,664 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 [2019-02-14 16:47:03,665 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 [2019-02-14 16:47:03,666 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 [2019-02-14 16:47:03,667 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 [2019-02-14 16:47:03,668 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 [2019-02-14 16:47:03,669 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 [2019-02-14 16:47:03,670 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 [2019-02-14 16:47:03,671 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 [2019-02-14 16:47:03,671 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 [2019-02-14 16:47:03,672 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 [2019-02-14 16:47:03,673 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 [2019-02-14 16:47:03,674 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 [2019-02-14 16:47:03,675 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 [2019-02-14 16:47:03,676 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 [2019-02-14 16:47:03,677 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 [2019-02-14 16:47:03,678 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 [2019-02-14 16:47:03,679 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 [2019-02-14 16:47:03,680 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 [2019-02-14 16:47:03,681 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 [2019-02-14 16:47:03,682 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 [2019-02-14 16:47:03,683 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 [2019-02-14 16:47:03,684 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 [2019-02-14 16:47:03,685 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 [2019-02-14 16:47:03,686 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 [2019-02-14 16:47:03,687 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 [2019-02-14 16:47:03,688 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 [2019-02-14 16:47:03,688 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 [2019-02-14 16:47:03,690 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 [2019-02-14 16:47:03,690 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 [2019-02-14 16:47:03,691 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 [2019-02-14 16:47:03,692 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 [2019-02-14 16:47:03,693 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 [2019-02-14 16:47:03,694 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 [2019-02-14 16:47:03,695 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 [2019-02-14 16:47:03,696 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 [2019-02-14 16:47:03,697 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 [2019-02-14 16:47:03,698 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 [2019-02-14 16:47:03,699 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 [2019-02-14 16:47:03,700 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 [2019-02-14 16:47:03,701 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 [2019-02-14 16:47:03,702 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 [2019-02-14 16:47:03,703 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 [2019-02-14 16:47:03,704 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 [2019-02-14 16:47:03,705 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 [2019-02-14 16:47:03,705 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 [2019-02-14 16:47:03,706 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 [2019-02-14 16:47:03,707 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 [2019-02-14 16:47:03,708 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 [2019-02-14 16:47:03,709 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 [2019-02-14 16:47:03,710 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 [2019-02-14 16:47:03,711 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 [2019-02-14 16:47:03,712 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 [2019-02-14 16:47:03,713 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 [2019-02-14 16:47:03,714 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 [2019-02-14 16:47:03,715 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 [2019-02-14 16:47:03,716 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 [2019-02-14 16:47:03,717 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 [2019-02-14 16:47:03,718 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 [2019-02-14 16:47:03,719 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 [2019-02-14 16:47:03,720 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 [2019-02-14 16:47:03,721 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 [2019-02-14 16:47:03,722 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 [2019-02-14 16:47:03,722 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 [2019-02-14 16:47:03,724 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 [2019-02-14 16:47:03,724 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 [2019-02-14 16:47:03,725 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 [2019-02-14 16:47:03,726 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 [2019-02-14 16:47:03,728 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 [2019-02-14 16:47:03,729 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 [2019-02-14 16:47:03,730 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 [2019-02-14 16:47:03,730 INFO L273 TraceCheckUtils]: 100: Hoare triple {32243#(and (<= main_i 200) (< 49 main_n))} assume !(i <= n * 4); {32191#false} is VALID [2019-02-14 16:47:03,772 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:47:03,772 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:47:03,773 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:47:03,773 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:47:03,773 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:47:03,773 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:47:03,773 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 [2019-02-14 16:47:03,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:47:03,781 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:47:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:47:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:47:03,824 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:47:03,830 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 [2019-02-14 16:47:03,832 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:47:03,840 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:47:03,840 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:47:03,841 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:47:03,841 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_53]. (and (= main_a (store v_main_a_53 (* 4 main_n) 23)) (= main_i 0)) [2019-02-14 16:47:03,842 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:47:07,992 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 [2019-02-14 16:47:07,994 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:47:07,999 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:47:08,000 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:47:08,002 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:47:08,003 WARN L398 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)))) [2019-02-14 16:47:08,003 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 196 .cse0)) (<= 196 .cse0) (<= main_i 200))) [2019-02-14 16:47:08,065 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 [2019-02-14 16:47:08,066 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 [2019-02-14 16:47:08,066 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 [2019-02-14 16:47:08,067 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 [2019-02-14 16:47:08,068 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 [2019-02-14 16:47:08,069 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 [2019-02-14 16:47:08,069 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 [2019-02-14 16:47:08,070 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 [2019-02-14 16:47:08,071 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 [2019-02-14 16:47:08,071 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 [2019-02-14 16:47:08,072 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 [2019-02-14 16:47:08,073 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 [2019-02-14 16:47:08,073 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 [2019-02-14 16:47:08,074 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 [2019-02-14 16:47:08,075 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 [2019-02-14 16:47:08,076 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 [2019-02-14 16:47:08,076 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 [2019-02-14 16:47:08,077 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 [2019-02-14 16:47:08,078 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 [2019-02-14 16:47:08,079 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 [2019-02-14 16:47:08,079 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 [2019-02-14 16:47:08,080 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 [2019-02-14 16:47:08,081 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 [2019-02-14 16:47:08,081 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 [2019-02-14 16:47:08,082 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 [2019-02-14 16:47:08,083 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 [2019-02-14 16:47:08,084 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 [2019-02-14 16:47:08,084 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 [2019-02-14 16:47:08,085 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 [2019-02-14 16:47:08,086 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 [2019-02-14 16:47:08,086 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 [2019-02-14 16:47:08,087 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 [2019-02-14 16:47:08,088 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 [2019-02-14 16:47:08,089 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 [2019-02-14 16:47:08,089 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 [2019-02-14 16:47:08,090 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 [2019-02-14 16:47:08,091 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 [2019-02-14 16:47:08,092 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 [2019-02-14 16:47:08,093 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 [2019-02-14 16:47:08,093 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 [2019-02-14 16:47:08,094 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 [2019-02-14 16:47:08,095 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 [2019-02-14 16:47:08,096 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 [2019-02-14 16:47:08,097 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 [2019-02-14 16:47:08,098 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 [2019-02-14 16:47:08,098 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 [2019-02-14 16:47:08,099 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 [2019-02-14 16:47:08,100 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 [2019-02-14 16:47:08,100 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 [2019-02-14 16:47:08,101 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 [2019-02-14 16:47:08,102 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 [2019-02-14 16:47:08,102 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 [2019-02-14 16:47:08,103 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 [2019-02-14 16:47:08,104 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 [2019-02-14 16:47:08,104 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 [2019-02-14 16:47:08,105 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 [2019-02-14 16:47:08,106 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 [2019-02-14 16:47:08,107 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 [2019-02-14 16:47:08,107 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 [2019-02-14 16:47:08,108 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 [2019-02-14 16:47:08,109 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 [2019-02-14 16:47:08,110 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 [2019-02-14 16:47:08,111 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 [2019-02-14 16:47:08,111 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 [2019-02-14 16:47:08,112 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 [2019-02-14 16:47:08,113 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 [2019-02-14 16:47:08,114 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 [2019-02-14 16:47:08,115 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 [2019-02-14 16:47:08,115 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 [2019-02-14 16:47:08,116 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 [2019-02-14 16:47:08,117 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 [2019-02-14 16:47:08,118 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 [2019-02-14 16:47:08,118 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 [2019-02-14 16:47:08,119 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 [2019-02-14 16:47:08,120 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 [2019-02-14 16:47:08,120 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 [2019-02-14 16:47:08,121 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 [2019-02-14 16:47:08,122 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 [2019-02-14 16:47:08,122 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 [2019-02-14 16:47:08,123 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 [2019-02-14 16:47:08,124 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 [2019-02-14 16:47:08,125 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 [2019-02-14 16:47:08,125 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 [2019-02-14 16:47:08,126 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 [2019-02-14 16:47:08,127 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 [2019-02-14 16:47:08,128 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 [2019-02-14 16:47:08,129 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 [2019-02-14 16:47:08,130 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 [2019-02-14 16:47:08,130 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 [2019-02-14 16:47:08,131 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 [2019-02-14 16:47:08,132 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 [2019-02-14 16:47:08,133 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 [2019-02-14 16:47:08,133 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 [2019-02-14 16:47:08,134 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 [2019-02-14 16:47:08,135 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 [2019-02-14 16:47:08,136 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 [2019-02-14 16:47:08,137 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 [2019-02-14 16:47:08,137 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 [2019-02-14 16:47:08,138 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 [2019-02-14 16:47:08,139 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 [2019-02-14 16:47:08,140 INFO L273 TraceCheckUtils]: 100: Hoare triple {32243#(and (<= main_i 200) (< 49 main_n))} assume !(i <= n * 4); {32191#false} is VALID [2019-02-14 16:47:08,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:47:08,169 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:47:15,467 INFO L273 TraceCheckUtils]: 100: Hoare triple {32598#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {32191#false} is VALID [2019-02-14 16:47:15,468 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 [2019-02-14 16:47:15,469 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 [2019-02-14 16:47:15,469 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 [2019-02-14 16:47:15,470 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 [2019-02-14 16:47:15,470 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 [2019-02-14 16:47:15,471 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 [2019-02-14 16:47:15,472 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 [2019-02-14 16:47:15,473 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 [2019-02-14 16:47:15,474 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 [2019-02-14 16:47:15,474 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 [2019-02-14 16:47:15,476 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 [2019-02-14 16:47:15,476 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 [2019-02-14 16:47:15,477 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 [2019-02-14 16:47:15,478 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 [2019-02-14 16:47:15,479 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 [2019-02-14 16:47:15,480 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 [2019-02-14 16:47:15,481 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 [2019-02-14 16:47:15,482 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 [2019-02-14 16:47:15,483 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 [2019-02-14 16:47:15,483 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 [2019-02-14 16:47:15,485 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 [2019-02-14 16:47:15,485 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 [2019-02-14 16:47:15,486 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 [2019-02-14 16:47:15,487 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 [2019-02-14 16:47:15,488 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 [2019-02-14 16:47:15,489 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 [2019-02-14 16:47:15,490 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 [2019-02-14 16:47:15,490 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 [2019-02-14 16:47:15,492 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 [2019-02-14 16:47:15,492 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 [2019-02-14 16:47:15,493 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 [2019-02-14 16:47:15,494 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 [2019-02-14 16:47:15,495 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 [2019-02-14 16:47:15,496 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 [2019-02-14 16:47:15,497 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 [2019-02-14 16:47:15,497 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 [2019-02-14 16:47:15,498 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 [2019-02-14 16:47:15,499 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 [2019-02-14 16:47:15,500 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 [2019-02-14 16:47:15,501 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 [2019-02-14 16:47:15,502 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 [2019-02-14 16:47:15,502 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 [2019-02-14 16:47:15,504 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 [2019-02-14 16:47:15,504 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 [2019-02-14 16:47:15,505 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 [2019-02-14 16:47:15,506 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 [2019-02-14 16:47:15,507 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 [2019-02-14 16:47:15,508 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 [2019-02-14 16:47:15,509 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 [2019-02-14 16:47:15,509 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 [2019-02-14 16:47:15,510 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 [2019-02-14 16:47:15,511 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 [2019-02-14 16:47:15,512 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 [2019-02-14 16:47:15,513 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 [2019-02-14 16:47:15,518 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 [2019-02-14 16:47:15,520 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 [2019-02-14 16:47:15,528 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 [2019-02-14 16:47:15,529 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 [2019-02-14 16:47:15,533 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 [2019-02-14 16:47:15,536 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 [2019-02-14 16:47:15,537 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 [2019-02-14 16:47:15,540 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 [2019-02-14 16:47:15,541 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 [2019-02-14 16:47:15,542 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 [2019-02-14 16:47:15,544 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 [2019-02-14 16:47:15,547 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 [2019-02-14 16:47:15,549 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 [2019-02-14 16:47:15,549 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 [2019-02-14 16:47:15,551 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 [2019-02-14 16:47:15,551 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 [2019-02-14 16:47:15,552 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 [2019-02-14 16:47:15,553 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 [2019-02-14 16:47:15,553 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 [2019-02-14 16:47:15,554 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 [2019-02-14 16:47:15,555 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 [2019-02-14 16:47:15,555 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 [2019-02-14 16:47:15,557 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 [2019-02-14 16:47:15,557 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 [2019-02-14 16:47:15,559 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 [2019-02-14 16:47:15,559 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 [2019-02-14 16:47:15,561 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 [2019-02-14 16:47:15,561 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 [2019-02-14 16:47:15,563 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 [2019-02-14 16:47:15,563 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 [2019-02-14 16:47:15,565 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 [2019-02-14 16:47:15,567 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 [2019-02-14 16:47:15,568 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 [2019-02-14 16:47:15,570 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 [2019-02-14 16:47:15,571 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 [2019-02-14 16:47:15,572 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 [2019-02-14 16:47:15,573 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 [2019-02-14 16:47:15,574 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 [2019-02-14 16:47:15,575 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 [2019-02-14 16:47:15,575 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 [2019-02-14 16:47:15,576 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 [2019-02-14 16:47:15,577 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 [2019-02-14 16:47:15,578 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 [2019-02-14 16:47:15,579 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 [2019-02-14 16:47:15,580 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 [2019-02-14 16:47:15,581 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 [2019-02-14 16:47:15,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:47:15,638 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:47:15,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52, 52] total 155 [2019-02-14 16:47:15,638 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:47:15,639 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 101 [2019-02-14 16:47:15,639 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:47:15,639 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 105 states. [2019-02-14 16:47:15,914 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 201 edges. 201 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:47:15,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 105 states [2019-02-14 16:47:15,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2019-02-14 16:47:15,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2972, Invalid=21520, Unknown=0, NotChecked=0, Total=24492 [2019-02-14 16:47:15,916 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand 105 states. [2019-02-14 16:47:37,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:47:37,096 INFO L93 Difference]: Finished difference Result 106 states and 106 transitions. [2019-02-14 16:47:37,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2019-02-14 16:47:37,096 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 101 [2019-02-14 16:47:37,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:47:37,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-02-14 16:47:37,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 106 transitions. [2019-02-14 16:47:37,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-02-14 16:47:37,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 106 transitions. [2019-02-14 16:47:37,099 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 54 states and 106 transitions. [2019-02-14 16:47:37,537 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 106 edges. 106 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:47:37,539 INFO L225 Difference]: With dead ends: 106 [2019-02-14 16:47:37,539 INFO L226 Difference]: Without dead ends: 105 [2019-02-14 16:47:37,539 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5508 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=2972, Invalid=21520, Unknown=0, NotChecked=0, Total=24492 [2019-02-14 16:47:37,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-02-14 16:47:37,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2019-02-14 16:47:37,998 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:47:37,998 INFO L82 GeneralOperation]: Start isEquivalent. First operand 105 states. Second operand 104 states. [2019-02-14 16:47:37,999 INFO L74 IsIncluded]: Start isIncluded. First operand 105 states. Second operand 104 states. [2019-02-14 16:47:37,999 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 104 states. [2019-02-14 16:47:38,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:47:38,001 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2019-02-14 16:47:38,001 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 105 transitions. [2019-02-14 16:47:38,001 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:47:38,001 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:47:38,001 INFO L74 IsIncluded]: Start isIncluded. First operand 104 states. Second operand 105 states. [2019-02-14 16:47:38,001 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 105 states. [2019-02-14 16:47:38,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:47:38,002 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2019-02-14 16:47:38,002 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 105 transitions. [2019-02-14 16:47:38,002 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:47:38,003 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:47:38,003 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:47:38,003 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:47:38,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-02-14 16:47:38,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 104 transitions. [2019-02-14 16:47:38,004 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 104 transitions. Word has length 101 [2019-02-14 16:47:38,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:47:38,004 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 104 transitions. [2019-02-14 16:47:38,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has 105 states. [2019-02-14 16:47:38,004 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 104 transitions. [2019-02-14 16:47:38,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-02-14 16:47:38,005 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:47:38,005 INFO L402 BasicCegarLoop]: trace histogram [51, 50, 1, 1] [2019-02-14 16:47:38,005 INFO L423 AbstractCegarLoop]: === Iteration 51 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:47:38,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:47:38,005 INFO L82 PathProgramCache]: Analyzing trace with hash -315445948, now seen corresponding path program 50 times [2019-02-14 16:47:38,006 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:47:38,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:47:38,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:47:38,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:47:38,006 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:47:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:47:41,169 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 [2019-02-14 16:47:41,171 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 [2019-02-14 16:47:41,171 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 [2019-02-14 16:47:41,172 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 [2019-02-14 16:47:41,173 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 [2019-02-14 16:47:41,174 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 [2019-02-14 16:47:41,175 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 [2019-02-14 16:47:41,176 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 [2019-02-14 16:47:41,177 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 [2019-02-14 16:47:41,178 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 [2019-02-14 16:47:41,178 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 [2019-02-14 16:47:41,179 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 [2019-02-14 16:47:41,180 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 [2019-02-14 16:47:41,181 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 [2019-02-14 16:47:41,182 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 [2019-02-14 16:47:41,183 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 [2019-02-14 16:47:41,184 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 [2019-02-14 16:47:41,185 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 [2019-02-14 16:47:41,185 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 [2019-02-14 16:47:41,186 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 [2019-02-14 16:47:41,187 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 [2019-02-14 16:47:41,188 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 [2019-02-14 16:47:41,189 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 [2019-02-14 16:47:41,190 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 [2019-02-14 16:47:41,191 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 [2019-02-14 16:47:41,192 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 [2019-02-14 16:47:41,193 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 [2019-02-14 16:47:41,194 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 [2019-02-14 16:47:41,194 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 [2019-02-14 16:47:41,195 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 [2019-02-14 16:47:41,196 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 [2019-02-14 16:47:41,197 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 [2019-02-14 16:47:41,198 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 [2019-02-14 16:47:41,199 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 [2019-02-14 16:47:41,200 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 [2019-02-14 16:47:41,201 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 [2019-02-14 16:47:41,201 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 [2019-02-14 16:47:41,203 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 [2019-02-14 16:47:41,203 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 [2019-02-14 16:47:41,204 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 [2019-02-14 16:47:41,205 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 [2019-02-14 16:47:41,206 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 [2019-02-14 16:47:41,207 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 [2019-02-14 16:47:41,208 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 [2019-02-14 16:47:41,209 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 [2019-02-14 16:47:41,210 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 [2019-02-14 16:47:41,210 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 [2019-02-14 16:47:41,211 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 [2019-02-14 16:47:41,212 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 [2019-02-14 16:47:41,213 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 [2019-02-14 16:47:41,214 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 [2019-02-14 16:47:41,215 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 [2019-02-14 16:47:41,216 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 [2019-02-14 16:47:41,217 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 [2019-02-14 16:47:41,218 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 [2019-02-14 16:47:41,219 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 [2019-02-14 16:47:41,219 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 [2019-02-14 16:47:41,220 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 [2019-02-14 16:47:41,221 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 [2019-02-14 16:47:41,222 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 [2019-02-14 16:47:41,223 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 [2019-02-14 16:47:41,224 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 [2019-02-14 16:47:41,225 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 [2019-02-14 16:47:41,226 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 [2019-02-14 16:47:41,226 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 [2019-02-14 16:47:41,227 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 [2019-02-14 16:47:41,228 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 [2019-02-14 16:47:41,229 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 [2019-02-14 16:47:41,230 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 [2019-02-14 16:47:41,231 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 [2019-02-14 16:47:41,232 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 [2019-02-14 16:47:41,233 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 [2019-02-14 16:47:41,234 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 [2019-02-14 16:47:41,235 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 [2019-02-14 16:47:41,235 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 [2019-02-14 16:47:41,237 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 [2019-02-14 16:47:41,237 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 [2019-02-14 16:47:41,238 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 [2019-02-14 16:47:41,239 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 [2019-02-14 16:47:41,240 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 [2019-02-14 16:47:41,241 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 [2019-02-14 16:47:41,242 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 [2019-02-14 16:47:41,243 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 [2019-02-14 16:47:41,244 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 [2019-02-14 16:47:41,244 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 [2019-02-14 16:47:41,245 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 [2019-02-14 16:47:41,246 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 [2019-02-14 16:47:41,247 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 [2019-02-14 16:47:41,248 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 [2019-02-14 16:47:41,249 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 [2019-02-14 16:47:41,250 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 [2019-02-14 16:47:41,251 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 [2019-02-14 16:47:41,251 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 [2019-02-14 16:47:41,252 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 [2019-02-14 16:47:41,253 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 [2019-02-14 16:47:41,254 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 [2019-02-14 16:47:41,255 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 [2019-02-14 16:47:41,256 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 [2019-02-14 16:47:41,257 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 [2019-02-14 16:47:41,258 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 [2019-02-14 16:47:41,259 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 [2019-02-14 16:47:41,260 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 [2019-02-14 16:47:41,261 INFO L273 TraceCheckUtils]: 102: Hoare triple {33526#(and (< 50 main_n) (<= main_i 204))} assume !(i <= n * 4); {33473#false} is VALID [2019-02-14 16:47:41,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2550 backedges. 0 proven. 2550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:47:41,307 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:47:41,307 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:47:41,308 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:47:41,308 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:47:41,308 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:47:41,308 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 [2019-02-14 16:47:41,316 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:47:41,316 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:47:41,414 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 51 check-sat command(s) [2019-02-14 16:47:41,414 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:47:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:47:41,432 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:47:41,468 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 [2019-02-14 16:47:41,469 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:47:41,480 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:47:41,480 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:47:41,481 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:47:41,482 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_54]. (and (= main_a (store v_main_a_54 (* 4 main_n) 23)) (= main_i 0)) [2019-02-14 16:47:41,482 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:47:45,799 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 [2019-02-14 16:47:45,801 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:47:45,807 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:47:45,807 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:47:45,810 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:47:45,810 WARN L398 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)))) [2019-02-14 16:47:45,810 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 200 .cse0)) (<= 200 .cse0) (<= main_i 204))) [2019-02-14 16:47:45,872 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 [2019-02-14 16:47:45,873 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 [2019-02-14 16:47:45,873 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 [2019-02-14 16:47:45,874 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 [2019-02-14 16:47:45,874 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 [2019-02-14 16:47:45,874 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 [2019-02-14 16:47:45,875 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 [2019-02-14 16:47:45,875 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 [2019-02-14 16:47:45,876 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 [2019-02-14 16:47:45,877 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 [2019-02-14 16:47:45,877 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 [2019-02-14 16:47:45,878 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 [2019-02-14 16:47:45,879 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 [2019-02-14 16:47:45,880 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 [2019-02-14 16:47:45,880 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 [2019-02-14 16:47:45,881 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 [2019-02-14 16:47:45,882 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 [2019-02-14 16:47:45,883 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 [2019-02-14 16:47:45,883 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 [2019-02-14 16:47:45,884 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 [2019-02-14 16:47:45,885 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 [2019-02-14 16:47:45,885 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 [2019-02-14 16:47:45,886 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 [2019-02-14 16:47:45,887 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 [2019-02-14 16:47:45,887 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 [2019-02-14 16:47:45,888 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 [2019-02-14 16:47:45,889 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 [2019-02-14 16:47:45,890 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 [2019-02-14 16:47:45,890 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 [2019-02-14 16:47:45,891 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 [2019-02-14 16:47:45,892 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 [2019-02-14 16:47:45,892 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 [2019-02-14 16:47:45,893 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 [2019-02-14 16:47:45,894 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 [2019-02-14 16:47:45,895 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 [2019-02-14 16:47:45,895 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 [2019-02-14 16:47:45,896 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 [2019-02-14 16:47:45,897 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 [2019-02-14 16:47:45,897 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 [2019-02-14 16:47:45,898 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 [2019-02-14 16:47:45,899 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 [2019-02-14 16:47:45,900 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 [2019-02-14 16:47:45,900 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 [2019-02-14 16:47:45,901 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 [2019-02-14 16:47:45,902 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 [2019-02-14 16:47:45,903 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 [2019-02-14 16:47:45,903 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 [2019-02-14 16:47:45,904 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 [2019-02-14 16:47:45,905 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 [2019-02-14 16:47:45,905 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 [2019-02-14 16:47:45,906 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 [2019-02-14 16:47:45,907 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 [2019-02-14 16:47:45,908 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 [2019-02-14 16:47:45,908 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 [2019-02-14 16:47:45,909 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 [2019-02-14 16:47:45,910 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 [2019-02-14 16:47:45,910 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 [2019-02-14 16:47:45,911 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 [2019-02-14 16:47:45,912 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 [2019-02-14 16:47:45,913 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 [2019-02-14 16:47:45,913 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 [2019-02-14 16:47:45,914 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 [2019-02-14 16:47:45,915 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 [2019-02-14 16:47:45,916 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 [2019-02-14 16:47:45,916 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 [2019-02-14 16:47:45,917 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 [2019-02-14 16:47:45,918 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 [2019-02-14 16:47:45,919 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 [2019-02-14 16:47:45,919 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 [2019-02-14 16:47:45,920 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 [2019-02-14 16:47:45,921 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 [2019-02-14 16:47:45,922 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 [2019-02-14 16:47:45,922 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 [2019-02-14 16:47:45,923 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 [2019-02-14 16:47:45,924 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 [2019-02-14 16:47:45,925 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 [2019-02-14 16:47:45,925 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 [2019-02-14 16:47:45,926 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 [2019-02-14 16:47:45,927 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 [2019-02-14 16:47:45,927 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 [2019-02-14 16:47:45,928 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 [2019-02-14 16:47:45,929 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 [2019-02-14 16:47:45,930 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 [2019-02-14 16:47:45,930 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 [2019-02-14 16:47:45,931 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 [2019-02-14 16:47:45,932 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 [2019-02-14 16:47:45,932 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 [2019-02-14 16:47:45,933 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 [2019-02-14 16:47:45,934 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 [2019-02-14 16:47:45,935 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 [2019-02-14 16:47:45,935 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 [2019-02-14 16:47:45,936 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 [2019-02-14 16:47:45,937 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 [2019-02-14 16:47:45,937 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 [2019-02-14 16:47:45,938 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 [2019-02-14 16:47:45,939 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 [2019-02-14 16:47:45,940 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 [2019-02-14 16:47:45,940 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 [2019-02-14 16:47:45,941 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 [2019-02-14 16:47:45,942 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 [2019-02-14 16:47:45,942 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 [2019-02-14 16:47:45,943 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 [2019-02-14 16:47:45,944 INFO L273 TraceCheckUtils]: 102: Hoare triple {33526#(and (< 50 main_n) (<= main_i 204))} assume !(i <= n * 4); {33473#false} is VALID [2019-02-14 16:47:45,967 INFO L134 CoverageAnalysis]: Checked inductivity of 2550 backedges. 0 proven. 2550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:47:45,967 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:47:53,542 INFO L273 TraceCheckUtils]: 102: Hoare triple {33888#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {33473#false} is VALID [2019-02-14 16:47:53,543 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 [2019-02-14 16:47:53,544 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 [2019-02-14 16:47:53,545 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 [2019-02-14 16:47:53,545 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 [2019-02-14 16:47:53,547 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 [2019-02-14 16:47:53,547 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 [2019-02-14 16:47:53,548 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 [2019-02-14 16:47:53,549 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 [2019-02-14 16:47:53,550 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 [2019-02-14 16:47:53,551 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 [2019-02-14 16:47:53,552 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 [2019-02-14 16:47:53,552 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 [2019-02-14 16:47:53,553 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 [2019-02-14 16:47:53,554 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 [2019-02-14 16:47:53,555 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 [2019-02-14 16:47:53,556 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 [2019-02-14 16:47:53,557 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 [2019-02-14 16:47:53,557 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 [2019-02-14 16:47:53,558 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 [2019-02-14 16:47:53,559 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 [2019-02-14 16:47:53,560 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 [2019-02-14 16:47:53,561 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 [2019-02-14 16:47:53,562 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 [2019-02-14 16:47:53,562 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 [2019-02-14 16:47:53,564 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 [2019-02-14 16:47:53,564 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 [2019-02-14 16:47:53,565 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 [2019-02-14 16:47:53,566 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 [2019-02-14 16:47:53,567 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 [2019-02-14 16:47:53,567 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 [2019-02-14 16:47:53,569 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 [2019-02-14 16:47:53,569 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 [2019-02-14 16:47:53,570 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 [2019-02-14 16:47:53,571 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 [2019-02-14 16:47:53,572 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 [2019-02-14 16:47:53,573 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 [2019-02-14 16:47:53,574 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 [2019-02-14 16:47:53,574 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 [2019-02-14 16:47:53,575 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 [2019-02-14 16:47:53,576 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 [2019-02-14 16:47:53,577 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 [2019-02-14 16:47:53,578 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 [2019-02-14 16:47:53,579 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 [2019-02-14 16:47:53,579 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 [2019-02-14 16:47:53,580 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 [2019-02-14 16:47:53,581 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 [2019-02-14 16:47:53,582 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 [2019-02-14 16:47:53,583 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 [2019-02-14 16:47:53,584 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 [2019-02-14 16:47:53,584 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 [2019-02-14 16:47:53,586 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 [2019-02-14 16:47:53,586 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 [2019-02-14 16:47:53,587 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 [2019-02-14 16:47:53,588 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 [2019-02-14 16:47:53,589 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 [2019-02-14 16:47:53,589 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 [2019-02-14 16:47:53,591 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 [2019-02-14 16:47:53,591 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 [2019-02-14 16:47:53,592 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 [2019-02-14 16:47:53,593 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 [2019-02-14 16:47:53,594 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 [2019-02-14 16:47:53,595 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 [2019-02-14 16:47:53,596 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 [2019-02-14 16:47:53,596 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 [2019-02-14 16:47:53,597 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 [2019-02-14 16:47:53,598 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 [2019-02-14 16:47:53,599 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 [2019-02-14 16:47:53,600 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 [2019-02-14 16:47:53,601 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 [2019-02-14 16:47:53,601 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 [2019-02-14 16:47:53,602 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 [2019-02-14 16:47:53,603 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 [2019-02-14 16:47:53,604 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 [2019-02-14 16:47:53,605 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 [2019-02-14 16:47:53,606 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 [2019-02-14 16:47:53,606 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 [2019-02-14 16:47:53,607 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 [2019-02-14 16:47:53,608 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 [2019-02-14 16:47:53,609 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 [2019-02-14 16:47:53,610 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 [2019-02-14 16:47:53,611 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 [2019-02-14 16:47:53,611 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 [2019-02-14 16:47:53,612 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 [2019-02-14 16:47:53,613 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 [2019-02-14 16:47:53,614 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 [2019-02-14 16:47:53,615 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 [2019-02-14 16:47:53,616 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 [2019-02-14 16:47:53,616 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 [2019-02-14 16:47:53,618 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 [2019-02-14 16:47:53,618 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 [2019-02-14 16:47:53,619 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 [2019-02-14 16:47:53,620 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 [2019-02-14 16:47:53,621 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 [2019-02-14 16:47:53,621 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 [2019-02-14 16:47:53,623 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 [2019-02-14 16:47:53,623 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 [2019-02-14 16:47:53,624 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 [2019-02-14 16:47:53,625 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 [2019-02-14 16:47:53,626 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 [2019-02-14 16:47:53,627 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 [2019-02-14 16:47:53,628 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 [2019-02-14 16:47:53,629 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 [2019-02-14 16:47:53,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2550 backedges. 0 proven. 2550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:47:53,686 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:47:53,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 158 [2019-02-14 16:47:53,686 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:47:53,687 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 103 [2019-02-14 16:47:53,687 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:47:53,687 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 107 states. [2019-02-14 16:47:53,967 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 205 edges. 205 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:47:53,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 107 states [2019-02-14 16:47:53,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2019-02-14 16:47:53,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3082, Invalid=22358, Unknown=0, NotChecked=0, Total=25440 [2019-02-14 16:47:53,969 INFO L87 Difference]: Start difference. First operand 104 states and 104 transitions. Second operand 107 states. [2019-02-14 16:48:16,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:48:16,226 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2019-02-14 16:48:16,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2019-02-14 16:48:16,227 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 103 [2019-02-14 16:48:16,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:48:16,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-02-14 16:48:16,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 108 transitions. [2019-02-14 16:48:16,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-02-14 16:48:16,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 108 transitions. [2019-02-14 16:48:16,229 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 55 states and 108 transitions. [2019-02-14 16:48:16,345 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 108 edges. 108 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:48:16,347 INFO L225 Difference]: With dead ends: 108 [2019-02-14 16:48:16,347 INFO L226 Difference]: Without dead ends: 107 [2019-02-14 16:48:16,347 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5720 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=3082, Invalid=22358, Unknown=0, NotChecked=0, Total=25440 [2019-02-14 16:48:16,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-02-14 16:48:16,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2019-02-14 16:48:16,442 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:48:16,443 INFO L82 GeneralOperation]: Start isEquivalent. First operand 107 states. Second operand 106 states. [2019-02-14 16:48:16,443 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 106 states. [2019-02-14 16:48:16,443 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 106 states. [2019-02-14 16:48:16,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:48:16,445 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2019-02-14 16:48:16,445 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2019-02-14 16:48:16,445 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:48:16,445 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:48:16,445 INFO L74 IsIncluded]: Start isIncluded. First operand 106 states. Second operand 107 states. [2019-02-14 16:48:16,445 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 107 states. [2019-02-14 16:48:16,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:48:16,447 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2019-02-14 16:48:16,447 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2019-02-14 16:48:16,447 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:48:16,447 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:48:16,447 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:48:16,448 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:48:16,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-02-14 16:48:16,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2019-02-14 16:48:16,449 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 103 [2019-02-14 16:48:16,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:48:16,449 INFO L480 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2019-02-14 16:48:16,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has 107 states. [2019-02-14 16:48:16,449 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2019-02-14 16:48:16,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-02-14 16:48:16,450 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:48:16,450 INFO L402 BasicCegarLoop]: trace histogram [52, 51, 1, 1] [2019-02-14 16:48:16,450 INFO L423 AbstractCegarLoop]: === Iteration 52 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:48:16,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:48:16,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1799123078, now seen corresponding path program 51 times [2019-02-14 16:48:16,451 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:48:16,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:48:16,451 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:48:16,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:48:16,451 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:48:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:48:19,726 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 [2019-02-14 16:48:19,727 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 [2019-02-14 16:48:19,728 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 [2019-02-14 16:48:19,729 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 [2019-02-14 16:48:19,730 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 [2019-02-14 16:48:19,731 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 [2019-02-14 16:48:19,732 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 [2019-02-14 16:48:19,733 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 [2019-02-14 16:48:19,733 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 [2019-02-14 16:48:19,734 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 [2019-02-14 16:48:19,735 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 [2019-02-14 16:48:19,736 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 [2019-02-14 16:48:19,737 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 [2019-02-14 16:48:19,738 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 [2019-02-14 16:48:19,739 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 [2019-02-14 16:48:19,740 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 [2019-02-14 16:48:19,740 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 [2019-02-14 16:48:19,741 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 [2019-02-14 16:48:19,742 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 [2019-02-14 16:48:19,743 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 [2019-02-14 16:48:19,744 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 [2019-02-14 16:48:19,745 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 [2019-02-14 16:48:19,746 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 [2019-02-14 16:48:19,747 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 [2019-02-14 16:48:19,748 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 [2019-02-14 16:48:19,749 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 [2019-02-14 16:48:19,749 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 [2019-02-14 16:48:19,750 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 [2019-02-14 16:48:19,751 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 [2019-02-14 16:48:19,752 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 [2019-02-14 16:48:19,753 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 [2019-02-14 16:48:19,754 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 [2019-02-14 16:48:19,755 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 [2019-02-14 16:48:19,756 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 [2019-02-14 16:48:19,756 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 [2019-02-14 16:48:19,757 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 [2019-02-14 16:48:19,758 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 [2019-02-14 16:48:19,759 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 [2019-02-14 16:48:19,760 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 [2019-02-14 16:48:19,761 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 [2019-02-14 16:48:19,762 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 [2019-02-14 16:48:19,763 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 [2019-02-14 16:48:19,763 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 [2019-02-14 16:48:19,764 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 [2019-02-14 16:48:19,765 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 [2019-02-14 16:48:19,766 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 [2019-02-14 16:48:19,767 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 [2019-02-14 16:48:19,768 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 [2019-02-14 16:48:19,769 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 [2019-02-14 16:48:19,770 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 [2019-02-14 16:48:19,771 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 [2019-02-14 16:48:19,772 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 [2019-02-14 16:48:19,772 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 [2019-02-14 16:48:19,773 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 [2019-02-14 16:48:19,774 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 [2019-02-14 16:48:19,775 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 [2019-02-14 16:48:19,776 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 [2019-02-14 16:48:19,777 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 [2019-02-14 16:48:19,778 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 [2019-02-14 16:48:19,779 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 [2019-02-14 16:48:19,779 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 [2019-02-14 16:48:19,781 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 [2019-02-14 16:48:19,781 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 [2019-02-14 16:48:19,782 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 [2019-02-14 16:48:19,783 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 [2019-02-14 16:48:19,784 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 [2019-02-14 16:48:19,785 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 [2019-02-14 16:48:19,786 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 [2019-02-14 16:48:19,787 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 [2019-02-14 16:48:19,788 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 [2019-02-14 16:48:19,788 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 [2019-02-14 16:48:19,789 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 [2019-02-14 16:48:19,790 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 [2019-02-14 16:48:19,791 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 [2019-02-14 16:48:19,792 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 [2019-02-14 16:48:19,793 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 [2019-02-14 16:48:19,794 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 [2019-02-14 16:48:19,795 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 [2019-02-14 16:48:19,795 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 [2019-02-14 16:48:19,796 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 [2019-02-14 16:48:19,797 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 [2019-02-14 16:48:19,798 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 [2019-02-14 16:48:19,799 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 [2019-02-14 16:48:19,800 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 [2019-02-14 16:48:19,801 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 [2019-02-14 16:48:19,802 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 [2019-02-14 16:48:19,803 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 [2019-02-14 16:48:19,804 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 [2019-02-14 16:48:19,804 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 [2019-02-14 16:48:19,805 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 [2019-02-14 16:48:19,806 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 [2019-02-14 16:48:19,807 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 [2019-02-14 16:48:19,808 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 [2019-02-14 16:48:19,809 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 [2019-02-14 16:48:19,810 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 [2019-02-14 16:48:19,811 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 [2019-02-14 16:48:19,811 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 [2019-02-14 16:48:19,812 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 [2019-02-14 16:48:19,813 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 [2019-02-14 16:48:19,814 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 [2019-02-14 16:48:19,815 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 [2019-02-14 16:48:19,816 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 [2019-02-14 16:48:19,817 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 [2019-02-14 16:48:19,818 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 [2019-02-14 16:48:19,819 INFO L273 TraceCheckUtils]: 104: Hoare triple {34834#(and (<= main_i 208) (<= 52 main_n))} assume !(i <= n * 4); {34780#false} is VALID [2019-02-14 16:48:19,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2652 backedges. 0 proven. 2652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:48:19,868 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:48:19,868 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:48:19,869 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:48:19,869 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:48:19,869 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:48:19,869 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 [2019-02-14 16:48:19,879 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-14 16:48:19,879 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-14 16:48:19,906 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-14 16:48:19,907 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:48:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:48:19,922 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:48:19,940 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 [2019-02-14 16:48:19,943 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:48:19,950 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:48:19,950 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:48:19,952 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:48:19,952 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_55]. (and (= (store v_main_a_55 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:48:19,952 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:48:24,643 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 [2019-02-14 16:48:24,644 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:48:24,649 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:48:24,649 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:48:24,652 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:48:24,652 WARN L398 uantifierElimination]: Input elimination task: ∃ [main_a]. (let ((.cse0 (* 4 main_n))) (and (not (= 23 (select main_a 204))) (<= 204 .cse0) (<= main_i 208) (= 23 (select main_a .cse0)))) [2019-02-14 16:48:24,652 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= 204 .cse0) (<= main_i 208) (not (= 204 .cse0)))) [2019-02-14 16:48:24,718 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 [2019-02-14 16:48:24,718 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 [2019-02-14 16:48:24,719 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 [2019-02-14 16:48:24,719 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 [2019-02-14 16:48:24,719 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 [2019-02-14 16:48:24,720 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 [2019-02-14 16:48:24,721 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 [2019-02-14 16:48:24,721 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 [2019-02-14 16:48:24,722 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 [2019-02-14 16:48:24,723 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 [2019-02-14 16:48:24,723 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 [2019-02-14 16:48:24,724 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 [2019-02-14 16:48:24,725 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 [2019-02-14 16:48:24,725 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 [2019-02-14 16:48:24,726 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 [2019-02-14 16:48:24,727 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 [2019-02-14 16:48:24,727 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 [2019-02-14 16:48:24,728 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 [2019-02-14 16:48:24,729 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 [2019-02-14 16:48:24,729 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 [2019-02-14 16:48:24,730 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 [2019-02-14 16:48:24,731 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 [2019-02-14 16:48:24,731 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 [2019-02-14 16:48:24,732 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 [2019-02-14 16:48:24,733 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 [2019-02-14 16:48:24,733 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 [2019-02-14 16:48:24,734 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 [2019-02-14 16:48:24,735 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 [2019-02-14 16:48:24,735 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 [2019-02-14 16:48:24,736 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 [2019-02-14 16:48:24,737 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 [2019-02-14 16:48:24,737 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 [2019-02-14 16:48:24,738 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 [2019-02-14 16:48:24,739 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 [2019-02-14 16:48:24,739 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 [2019-02-14 16:48:24,740 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 [2019-02-14 16:48:24,741 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 [2019-02-14 16:48:24,741 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 [2019-02-14 16:48:24,742 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 [2019-02-14 16:48:24,743 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 [2019-02-14 16:48:24,743 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 [2019-02-14 16:48:24,744 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 [2019-02-14 16:48:24,745 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 [2019-02-14 16:48:24,745 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 [2019-02-14 16:48:24,746 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 [2019-02-14 16:48:24,747 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 [2019-02-14 16:48:24,747 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 [2019-02-14 16:48:24,748 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 [2019-02-14 16:48:24,749 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 [2019-02-14 16:48:24,749 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 [2019-02-14 16:48:24,750 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 [2019-02-14 16:48:24,751 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 [2019-02-14 16:48:24,751 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 [2019-02-14 16:48:24,752 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 [2019-02-14 16:48:24,753 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 [2019-02-14 16:48:24,753 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 [2019-02-14 16:48:24,754 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 [2019-02-14 16:48:24,755 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 [2019-02-14 16:48:24,755 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 [2019-02-14 16:48:24,756 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 [2019-02-14 16:48:24,757 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 [2019-02-14 16:48:24,757 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 [2019-02-14 16:48:24,758 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 [2019-02-14 16:48:24,759 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 [2019-02-14 16:48:24,760 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 [2019-02-14 16:48:24,760 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 [2019-02-14 16:48:24,761 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 [2019-02-14 16:48:24,762 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 [2019-02-14 16:48:24,762 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 [2019-02-14 16:48:24,763 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 [2019-02-14 16:48:24,764 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 [2019-02-14 16:48:24,765 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 [2019-02-14 16:48:24,765 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 [2019-02-14 16:48:24,766 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 [2019-02-14 16:48:24,767 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 [2019-02-14 16:48:24,767 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 [2019-02-14 16:48:24,768 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 [2019-02-14 16:48:24,769 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 [2019-02-14 16:48:24,769 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 [2019-02-14 16:48:24,770 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 [2019-02-14 16:48:24,771 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 [2019-02-14 16:48:24,771 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 [2019-02-14 16:48:24,772 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 [2019-02-14 16:48:24,773 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 [2019-02-14 16:48:24,773 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 [2019-02-14 16:48:24,774 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 [2019-02-14 16:48:24,775 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 [2019-02-14 16:48:24,775 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 [2019-02-14 16:48:24,776 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 [2019-02-14 16:48:24,777 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 [2019-02-14 16:48:24,777 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 [2019-02-14 16:48:24,778 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 [2019-02-14 16:48:24,779 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 [2019-02-14 16:48:24,779 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 [2019-02-14 16:48:24,780 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 [2019-02-14 16:48:24,781 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 [2019-02-14 16:48:24,781 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 [2019-02-14 16:48:24,782 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 [2019-02-14 16:48:24,783 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 [2019-02-14 16:48:24,783 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 [2019-02-14 16:48:24,784 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 [2019-02-14 16:48:24,785 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 [2019-02-14 16:48:24,785 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 [2019-02-14 16:48:24,786 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 [2019-02-14 16:48:24,787 INFO L273 TraceCheckUtils]: 104: Hoare triple {34834#(and (<= main_i 208) (<= 52 main_n))} assume !(i <= n * 4); {34780#false} is VALID [2019-02-14 16:48:24,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2652 backedges. 0 proven. 2652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:48:24,812 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:48:32,346 INFO L273 TraceCheckUtils]: 104: Hoare triple {35203#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {34780#false} is VALID [2019-02-14 16:48:32,347 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 [2019-02-14 16:48:32,348 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 [2019-02-14 16:48:32,349 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 [2019-02-14 16:48:32,349 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 [2019-02-14 16:48:32,350 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 [2019-02-14 16:48:32,350 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 [2019-02-14 16:48:32,351 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 [2019-02-14 16:48:32,351 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 [2019-02-14 16:48:32,353 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 [2019-02-14 16:48:32,353 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 [2019-02-14 16:48:32,354 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 [2019-02-14 16:48:32,355 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 [2019-02-14 16:48:32,356 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 [2019-02-14 16:48:32,356 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 [2019-02-14 16:48:32,357 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 [2019-02-14 16:48:32,358 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 [2019-02-14 16:48:32,359 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 [2019-02-14 16:48:32,359 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 [2019-02-14 16:48:32,360 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 [2019-02-14 16:48:32,361 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 [2019-02-14 16:48:32,362 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 [2019-02-14 16:48:32,363 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 [2019-02-14 16:48:32,364 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 [2019-02-14 16:48:32,364 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 [2019-02-14 16:48:32,365 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 [2019-02-14 16:48:32,366 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 [2019-02-14 16:48:32,367 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 [2019-02-14 16:48:32,367 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 [2019-02-14 16:48:32,368 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 [2019-02-14 16:48:32,369 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 [2019-02-14 16:48:32,370 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 [2019-02-14 16:48:32,370 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 [2019-02-14 16:48:32,372 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 [2019-02-14 16:48:32,372 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 [2019-02-14 16:48:32,373 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 [2019-02-14 16:48:32,374 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 [2019-02-14 16:48:32,375 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 [2019-02-14 16:48:32,375 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 [2019-02-14 16:48:32,376 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 [2019-02-14 16:48:32,377 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 [2019-02-14 16:48:32,378 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 [2019-02-14 16:48:32,378 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 [2019-02-14 16:48:32,379 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 [2019-02-14 16:48:32,380 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 [2019-02-14 16:48:32,381 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 [2019-02-14 16:48:32,381 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 [2019-02-14 16:48:32,382 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 [2019-02-14 16:48:32,383 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 [2019-02-14 16:48:32,384 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 [2019-02-14 16:48:32,385 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 [2019-02-14 16:48:32,386 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 [2019-02-14 16:48:32,386 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 [2019-02-14 16:48:32,387 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 [2019-02-14 16:48:32,388 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 [2019-02-14 16:48:32,389 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 [2019-02-14 16:48:32,389 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 [2019-02-14 16:48:32,390 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 [2019-02-14 16:48:32,391 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 [2019-02-14 16:48:32,392 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 [2019-02-14 16:48:32,392 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 [2019-02-14 16:48:32,393 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 [2019-02-14 16:48:32,394 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 [2019-02-14 16:48:32,395 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 [2019-02-14 16:48:32,396 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 [2019-02-14 16:48:32,397 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 [2019-02-14 16:48:32,397 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 [2019-02-14 16:48:32,398 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 [2019-02-14 16:48:32,399 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 [2019-02-14 16:48:32,400 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 [2019-02-14 16:48:32,400 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 [2019-02-14 16:48:32,401 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 [2019-02-14 16:48:32,402 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 [2019-02-14 16:48:32,403 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 [2019-02-14 16:48:32,404 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 [2019-02-14 16:48:32,405 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 [2019-02-14 16:48:32,405 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 [2019-02-14 16:48:32,406 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 [2019-02-14 16:48:32,407 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 [2019-02-14 16:48:32,408 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 [2019-02-14 16:48:32,408 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 [2019-02-14 16:48:32,409 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 [2019-02-14 16:48:32,410 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 [2019-02-14 16:48:32,411 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 [2019-02-14 16:48:32,411 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 [2019-02-14 16:48:32,412 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 [2019-02-14 16:48:32,413 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 [2019-02-14 16:48:32,414 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 [2019-02-14 16:48:32,415 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 [2019-02-14 16:48:32,416 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 [2019-02-14 16:48:32,416 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 [2019-02-14 16:48:32,417 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 [2019-02-14 16:48:32,418 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 [2019-02-14 16:48:32,419 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 [2019-02-14 16:48:32,419 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 [2019-02-14 16:48:32,420 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 [2019-02-14 16:48:32,421 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 [2019-02-14 16:48:32,422 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 [2019-02-14 16:48:32,422 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 [2019-02-14 16:48:32,423 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 [2019-02-14 16:48:32,424 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 [2019-02-14 16:48:32,425 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 [2019-02-14 16:48:32,425 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 [2019-02-14 16:48:32,426 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 [2019-02-14 16:48:32,427 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 [2019-02-14 16:48:32,466 INFO L134 CoverageAnalysis]: Checked inductivity of 2652 backedges. 0 proven. 2652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:48:32,484 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:48:32,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 54] total 161 [2019-02-14 16:48:32,485 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:48:32,485 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 105 [2019-02-14 16:48:32,485 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:48:32,486 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 109 states. [2019-02-14 16:48:32,736 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 209 edges. 209 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:48:32,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 109 states [2019-02-14 16:48:32,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2019-02-14 16:48:32,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3194, Invalid=23212, Unknown=0, NotChecked=0, Total=26406 [2019-02-14 16:48:32,739 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand 109 states. [2019-02-14 16:48:52,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:48:52,734 INFO L93 Difference]: Finished difference Result 110 states and 110 transitions. [2019-02-14 16:48:52,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2019-02-14 16:48:52,735 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 105 [2019-02-14 16:48:52,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:48:52,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-02-14 16:48:52,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 110 transitions. [2019-02-14 16:48:52,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-02-14 16:48:52,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 110 transitions. [2019-02-14 16:48:52,738 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 56 states and 110 transitions. [2019-02-14 16:48:52,855 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 110 edges. 110 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:48:52,858 INFO L225 Difference]: With dead ends: 110 [2019-02-14 16:48:52,858 INFO L226 Difference]: Without dead ends: 109 [2019-02-14 16:48:52,859 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5936 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=3194, Invalid=23212, Unknown=0, NotChecked=0, Total=26406 [2019-02-14 16:48:52,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-02-14 16:48:52,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2019-02-14 16:48:52,963 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:48:52,964 INFO L82 GeneralOperation]: Start isEquivalent. First operand 109 states. Second operand 108 states. [2019-02-14 16:48:52,964 INFO L74 IsIncluded]: Start isIncluded. First operand 109 states. Second operand 108 states. [2019-02-14 16:48:52,964 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 108 states. [2019-02-14 16:48:52,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:48:52,966 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2019-02-14 16:48:52,966 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2019-02-14 16:48:52,966 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:48:52,966 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:48:52,966 INFO L74 IsIncluded]: Start isIncluded. First operand 108 states. Second operand 109 states. [2019-02-14 16:48:52,966 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 109 states. [2019-02-14 16:48:52,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:48:52,967 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2019-02-14 16:48:52,968 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2019-02-14 16:48:52,968 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:48:52,968 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:48:52,968 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:48:52,968 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:48:52,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-02-14 16:48:52,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 108 transitions. [2019-02-14 16:48:52,969 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 108 transitions. Word has length 105 [2019-02-14 16:48:52,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:48:52,969 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 108 transitions. [2019-02-14 16:48:52,969 INFO L481 AbstractCegarLoop]: Interpolant automaton has 109 states. [2019-02-14 16:48:52,969 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 108 transitions. [2019-02-14 16:48:52,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-02-14 16:48:52,970 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:48:52,970 INFO L402 BasicCegarLoop]: trace histogram [53, 52, 1, 1] [2019-02-14 16:48:52,970 INFO L423 AbstractCegarLoop]: === Iteration 53 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:48:52,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:48:52,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1914541240, now seen corresponding path program 52 times [2019-02-14 16:48:52,970 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:48:52,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:48:52,971 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:48:52,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:48:52,971 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:48:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:48:53,431 WARN L181 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-14 16:48:53,913 WARN L181 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-14 16:48:57,326 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 [2019-02-14 16:48:57,327 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 [2019-02-14 16:48:57,328 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 [2019-02-14 16:48:57,329 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 [2019-02-14 16:48:57,330 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 [2019-02-14 16:48:57,331 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 [2019-02-14 16:48:57,332 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 [2019-02-14 16:48:57,333 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 [2019-02-14 16:48:57,333 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 [2019-02-14 16:48:57,335 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 [2019-02-14 16:48:57,335 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 [2019-02-14 16:48:57,336 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 [2019-02-14 16:48:57,337 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 [2019-02-14 16:48:57,338 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 [2019-02-14 16:48:57,339 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 [2019-02-14 16:48:57,340 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 [2019-02-14 16:48:57,341 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 [2019-02-14 16:48:57,342 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 [2019-02-14 16:48:57,342 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 [2019-02-14 16:48:57,343 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 [2019-02-14 16:48:57,344 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 [2019-02-14 16:48:57,345 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 [2019-02-14 16:48:57,346 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 [2019-02-14 16:48:57,347 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 [2019-02-14 16:48:57,348 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 [2019-02-14 16:48:57,349 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 [2019-02-14 16:48:57,349 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 [2019-02-14 16:48:57,350 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 [2019-02-14 16:48:57,351 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 [2019-02-14 16:48:57,352 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 [2019-02-14 16:48:57,353 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 [2019-02-14 16:48:57,354 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 [2019-02-14 16:48:57,355 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 [2019-02-14 16:48:57,356 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 [2019-02-14 16:48:57,356 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 [2019-02-14 16:48:57,357 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 [2019-02-14 16:48:57,358 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 [2019-02-14 16:48:57,359 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 [2019-02-14 16:48:57,360 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 [2019-02-14 16:48:57,361 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 [2019-02-14 16:48:57,362 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 [2019-02-14 16:48:57,363 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 [2019-02-14 16:48:57,363 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 [2019-02-14 16:48:57,364 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 [2019-02-14 16:48:57,365 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 [2019-02-14 16:48:57,366 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 [2019-02-14 16:48:57,367 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 [2019-02-14 16:48:57,368 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 [2019-02-14 16:48:57,369 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 [2019-02-14 16:48:57,370 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 [2019-02-14 16:48:57,371 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 [2019-02-14 16:48:57,372 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 [2019-02-14 16:48:57,372 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 [2019-02-14 16:48:57,373 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 [2019-02-14 16:48:57,374 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 [2019-02-14 16:48:57,375 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 [2019-02-14 16:48:57,376 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 [2019-02-14 16:48:57,377 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 [2019-02-14 16:48:57,378 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 [2019-02-14 16:48:57,379 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 [2019-02-14 16:48:57,379 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 [2019-02-14 16:48:57,380 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 [2019-02-14 16:48:57,381 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 [2019-02-14 16:48:57,382 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 [2019-02-14 16:48:57,383 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 [2019-02-14 16:48:57,384 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 [2019-02-14 16:48:57,385 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 [2019-02-14 16:48:57,386 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 [2019-02-14 16:48:57,387 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 [2019-02-14 16:48:57,388 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 [2019-02-14 16:48:57,388 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 [2019-02-14 16:48:57,390 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 [2019-02-14 16:48:57,390 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 [2019-02-14 16:48:57,391 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 [2019-02-14 16:48:57,392 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 [2019-02-14 16:48:57,393 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 [2019-02-14 16:48:57,394 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 [2019-02-14 16:48:57,395 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 [2019-02-14 16:48:57,396 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 [2019-02-14 16:48:57,397 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 [2019-02-14 16:48:57,397 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 [2019-02-14 16:48:57,399 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 [2019-02-14 16:48:57,399 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 [2019-02-14 16:48:57,400 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 [2019-02-14 16:48:57,401 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 [2019-02-14 16:48:57,402 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 [2019-02-14 16:48:57,403 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 [2019-02-14 16:48:57,404 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 [2019-02-14 16:48:57,405 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 [2019-02-14 16:48:57,406 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 [2019-02-14 16:48:57,406 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 [2019-02-14 16:48:57,407 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 [2019-02-14 16:48:57,408 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 [2019-02-14 16:48:57,409 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 [2019-02-14 16:48:57,410 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 [2019-02-14 16:48:57,411 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 [2019-02-14 16:48:57,412 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 [2019-02-14 16:48:57,413 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 [2019-02-14 16:48:57,414 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 [2019-02-14 16:48:57,415 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 [2019-02-14 16:48:57,415 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 [2019-02-14 16:48:57,416 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 [2019-02-14 16:48:57,417 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 [2019-02-14 16:48:57,418 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 [2019-02-14 16:48:57,419 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 [2019-02-14 16:48:57,420 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 [2019-02-14 16:48:57,421 INFO L273 TraceCheckUtils]: 106: Hoare triple {36167#(and (<= main_i 212) (<= 53 main_n))} assume !(i <= n * 4); {36112#false} is VALID [2019-02-14 16:48:57,472 INFO L134 CoverageAnalysis]: Checked inductivity of 2756 backedges. 0 proven. 2756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:48:57,472 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:48:57,472 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:48:57,472 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:48:57,472 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:48:57,472 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:48:57,472 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 [2019-02-14 16:48:57,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:48:57,481 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-14 16:48:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:48:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:48:57,527 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:48:57,538 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 [2019-02-14 16:48:57,542 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:48:57,550 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:48:57,550 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:48:57,552 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:48:57,552 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_56]. (and (= (store v_main_a_56 (* 4 main_n) 23) main_a) (= main_i 0)) [2019-02-14 16:48:57,552 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:49:02,115 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 [2019-02-14 16:49:02,126 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:49:02,145 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:49:02,146 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:49:02,147 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:49:02,148 WARN L398 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))) [2019-02-14 16:49:02,148 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (not (= 208 .cse0)) (<= main_i 212) (<= 208 .cse0))) [2019-02-14 16:49:02,215 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 [2019-02-14 16:49:02,216 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 [2019-02-14 16:49:02,216 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 [2019-02-14 16:49:02,217 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 [2019-02-14 16:49:02,218 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 [2019-02-14 16:49:02,218 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 [2019-02-14 16:49:02,219 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 [2019-02-14 16:49:02,220 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 [2019-02-14 16:49:02,220 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 [2019-02-14 16:49:02,221 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 [2019-02-14 16:49:02,222 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 [2019-02-14 16:49:02,222 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 [2019-02-14 16:49:02,223 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 [2019-02-14 16:49:02,224 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 [2019-02-14 16:49:02,224 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 [2019-02-14 16:49:02,225 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 [2019-02-14 16:49:02,226 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 [2019-02-14 16:49:02,226 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 [2019-02-14 16:49:02,227 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 [2019-02-14 16:49:02,228 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 [2019-02-14 16:49:02,228 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 [2019-02-14 16:49:02,229 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 [2019-02-14 16:49:02,230 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 [2019-02-14 16:49:02,230 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 [2019-02-14 16:49:02,231 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 [2019-02-14 16:49:02,232 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 [2019-02-14 16:49:02,232 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 [2019-02-14 16:49:02,233 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 [2019-02-14 16:49:02,234 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 [2019-02-14 16:49:02,234 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 [2019-02-14 16:49:02,235 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 [2019-02-14 16:49:02,236 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 [2019-02-14 16:49:02,236 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 [2019-02-14 16:49:02,237 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 [2019-02-14 16:49:02,238 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 [2019-02-14 16:49:02,238 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 [2019-02-14 16:49:02,239 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 [2019-02-14 16:49:02,240 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 [2019-02-14 16:49:02,240 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 [2019-02-14 16:49:02,241 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 [2019-02-14 16:49:02,242 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 [2019-02-14 16:49:02,242 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 [2019-02-14 16:49:02,243 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 [2019-02-14 16:49:02,244 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 [2019-02-14 16:49:02,245 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 [2019-02-14 16:49:02,245 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 [2019-02-14 16:49:02,246 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 [2019-02-14 16:49:02,247 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 [2019-02-14 16:49:02,247 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 [2019-02-14 16:49:02,248 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 [2019-02-14 16:49:02,249 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 [2019-02-14 16:49:02,249 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 [2019-02-14 16:49:02,250 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 [2019-02-14 16:49:02,251 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 [2019-02-14 16:49:02,251 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 [2019-02-14 16:49:02,252 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 [2019-02-14 16:49:02,253 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 [2019-02-14 16:49:02,253 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 [2019-02-14 16:49:02,254 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 [2019-02-14 16:49:02,255 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 [2019-02-14 16:49:02,255 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 [2019-02-14 16:49:02,256 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 [2019-02-14 16:49:02,257 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 [2019-02-14 16:49:02,257 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 [2019-02-14 16:49:02,258 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 [2019-02-14 16:49:02,259 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 [2019-02-14 16:49:02,259 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 [2019-02-14 16:49:02,260 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 [2019-02-14 16:49:02,261 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 [2019-02-14 16:49:02,262 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 [2019-02-14 16:49:02,262 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 [2019-02-14 16:49:02,263 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 [2019-02-14 16:49:02,264 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 [2019-02-14 16:49:02,264 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 [2019-02-14 16:49:02,265 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 [2019-02-14 16:49:02,266 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 [2019-02-14 16:49:02,266 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 [2019-02-14 16:49:02,267 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 [2019-02-14 16:49:02,268 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 [2019-02-14 16:49:02,268 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 [2019-02-14 16:49:02,269 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 [2019-02-14 16:49:02,270 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 [2019-02-14 16:49:02,270 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 [2019-02-14 16:49:02,271 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 [2019-02-14 16:49:02,272 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 [2019-02-14 16:49:02,272 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 [2019-02-14 16:49:02,273 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 [2019-02-14 16:49:02,274 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 [2019-02-14 16:49:02,274 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 [2019-02-14 16:49:02,275 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 [2019-02-14 16:49:02,276 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 [2019-02-14 16:49:02,276 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 [2019-02-14 16:49:02,277 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 [2019-02-14 16:49:02,278 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 [2019-02-14 16:49:02,278 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 [2019-02-14 16:49:02,279 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 [2019-02-14 16:49:02,280 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 [2019-02-14 16:49:02,280 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 [2019-02-14 16:49:02,281 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 [2019-02-14 16:49:02,282 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 [2019-02-14 16:49:02,282 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 [2019-02-14 16:49:02,283 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 [2019-02-14 16:49:02,284 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 [2019-02-14 16:49:02,284 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 [2019-02-14 16:49:02,285 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 [2019-02-14 16:49:02,286 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 [2019-02-14 16:49:02,287 INFO L273 TraceCheckUtils]: 106: Hoare triple {36167#(and (<= main_i 212) (<= 53 main_n))} assume !(i <= n * 4); {36112#false} is VALID [2019-02-14 16:49:02,311 INFO L134 CoverageAnalysis]: Checked inductivity of 2756 backedges. 0 proven. 2756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:49:02,311 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:49:10,285 INFO L273 TraceCheckUtils]: 106: Hoare triple {36543#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {36112#false} is VALID [2019-02-14 16:49:10,285 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 [2019-02-14 16:49:10,286 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 [2019-02-14 16:49:10,287 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 [2019-02-14 16:49:10,287 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 [2019-02-14 16:49:10,287 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 [2019-02-14 16:49:10,288 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 [2019-02-14 16:49:10,289 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 [2019-02-14 16:49:10,289 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 [2019-02-14 16:49:10,291 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 [2019-02-14 16:49:10,291 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 [2019-02-14 16:49:10,292 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 [2019-02-14 16:49:10,293 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 [2019-02-14 16:49:10,294 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 [2019-02-14 16:49:10,294 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 [2019-02-14 16:49:10,295 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 [2019-02-14 16:49:10,296 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 [2019-02-14 16:49:10,297 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 [2019-02-14 16:49:10,297 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 [2019-02-14 16:49:10,298 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 [2019-02-14 16:49:10,299 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 [2019-02-14 16:49:10,300 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 [2019-02-14 16:49:10,301 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 [2019-02-14 16:49:10,302 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 [2019-02-14 16:49:10,302 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 [2019-02-14 16:49:10,303 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 [2019-02-14 16:49:10,304 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 [2019-02-14 16:49:10,305 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 [2019-02-14 16:49:10,305 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 [2019-02-14 16:49:10,306 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 [2019-02-14 16:49:10,307 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 [2019-02-14 16:49:10,308 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 [2019-02-14 16:49:10,308 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 [2019-02-14 16:49:10,309 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 [2019-02-14 16:49:10,310 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 [2019-02-14 16:49:10,311 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 [2019-02-14 16:49:10,311 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 [2019-02-14 16:49:10,312 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 [2019-02-14 16:49:10,313 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 [2019-02-14 16:49:10,314 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 [2019-02-14 16:49:10,315 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 [2019-02-14 16:49:10,316 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 [2019-02-14 16:49:10,316 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 [2019-02-14 16:49:10,317 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 [2019-02-14 16:49:10,318 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 [2019-02-14 16:49:10,319 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 [2019-02-14 16:49:10,319 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 [2019-02-14 16:49:10,320 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 [2019-02-14 16:49:10,321 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 [2019-02-14 16:49:10,322 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 [2019-02-14 16:49:10,323 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 [2019-02-14 16:49:10,324 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 [2019-02-14 16:49:10,324 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 [2019-02-14 16:49:10,325 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 [2019-02-14 16:49:10,326 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 [2019-02-14 16:49:10,327 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 [2019-02-14 16:49:10,328 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 [2019-02-14 16:49:10,329 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 [2019-02-14 16:49:10,329 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 [2019-02-14 16:49:10,330 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 [2019-02-14 16:49:10,331 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 [2019-02-14 16:49:10,332 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 [2019-02-14 16:49:10,333 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 [2019-02-14 16:49:10,334 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 [2019-02-14 16:49:10,334 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 [2019-02-14 16:49:10,335 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 [2019-02-14 16:49:10,336 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 [2019-02-14 16:49:10,337 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 [2019-02-14 16:49:10,338 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 [2019-02-14 16:49:10,339 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 [2019-02-14 16:49:10,339 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 [2019-02-14 16:49:10,340 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 [2019-02-14 16:49:10,341 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 [2019-02-14 16:49:10,342 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 [2019-02-14 16:49:10,343 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 [2019-02-14 16:49:10,344 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 [2019-02-14 16:49:10,344 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 [2019-02-14 16:49:10,345 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 [2019-02-14 16:49:10,346 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 [2019-02-14 16:49:10,347 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 [2019-02-14 16:49:10,347 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 [2019-02-14 16:49:10,348 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 [2019-02-14 16:49:10,349 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 [2019-02-14 16:49:10,350 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 [2019-02-14 16:49:10,350 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 [2019-02-14 16:49:10,351 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 [2019-02-14 16:49:10,352 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 [2019-02-14 16:49:10,353 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 [2019-02-14 16:49:10,353 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 [2019-02-14 16:49:10,354 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 [2019-02-14 16:49:10,355 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 [2019-02-14 16:49:10,356 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 [2019-02-14 16:49:10,356 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 [2019-02-14 16:49:10,358 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 [2019-02-14 16:49:10,358 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 [2019-02-14 16:49:10,359 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 [2019-02-14 16:49:10,360 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 [2019-02-14 16:49:10,361 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 [2019-02-14 16:49:10,361 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 [2019-02-14 16:49:10,362 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 [2019-02-14 16:49:10,363 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 [2019-02-14 16:49:10,364 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 [2019-02-14 16:49:10,364 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 [2019-02-14 16:49:10,365 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 [2019-02-14 16:49:10,366 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 [2019-02-14 16:49:10,367 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 [2019-02-14 16:49:10,368 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 [2019-02-14 16:49:10,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2756 backedges. 0 proven. 2756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:49:10,427 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:49:10,428 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55, 55] total 164 [2019-02-14 16:49:10,428 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:49:10,428 INFO L78 Accepts]: Start accepts. Automaton has 111 states. Word has length 107 [2019-02-14 16:49:10,428 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:49:10,428 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 111 states. [2019-02-14 16:49:10,692 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 213 edges. 213 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:49:10,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 111 states [2019-02-14 16:49:10,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2019-02-14 16:49:10,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3308, Invalid=24082, Unknown=0, NotChecked=0, Total=27390 [2019-02-14 16:49:10,694 INFO L87 Difference]: Start difference. First operand 108 states and 108 transitions. Second operand 111 states. [2019-02-14 16:49:25,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:49:25,371 INFO L93 Difference]: Finished difference Result 112 states and 112 transitions. [2019-02-14 16:49:25,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-02-14 16:49:25,372 INFO L78 Accepts]: Start accepts. Automaton has 111 states. Word has length 107 [2019-02-14 16:49:25,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:49:25,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-02-14 16:49:25,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 112 transitions. [2019-02-14 16:49:25,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-02-14 16:49:25,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 112 transitions. [2019-02-14 16:49:25,374 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 57 states and 112 transitions. [2019-02-14 16:49:25,496 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 112 edges. 112 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:49:25,498 INFO L225 Difference]: With dead ends: 112 [2019-02-14 16:49:25,498 INFO L226 Difference]: Without dead ends: 111 [2019-02-14 16:49:25,499 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6156 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=3308, Invalid=24082, Unknown=0, NotChecked=0, Total=27390 [2019-02-14 16:49:25,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-02-14 16:49:25,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2019-02-14 16:49:25,608 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:49:25,608 INFO L82 GeneralOperation]: Start isEquivalent. First operand 111 states. Second operand 110 states. [2019-02-14 16:49:25,608 INFO L74 IsIncluded]: Start isIncluded. First operand 111 states. Second operand 110 states. [2019-02-14 16:49:25,608 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 110 states. [2019-02-14 16:49:25,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:49:25,610 INFO L93 Difference]: Finished difference Result 111 states and 111 transitions. [2019-02-14 16:49:25,610 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2019-02-14 16:49:25,610 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:49:25,610 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:49:25,610 INFO L74 IsIncluded]: Start isIncluded. First operand 110 states. Second operand 111 states. [2019-02-14 16:49:25,610 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 111 states. [2019-02-14 16:49:25,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:49:25,611 INFO L93 Difference]: Finished difference Result 111 states and 111 transitions. [2019-02-14 16:49:25,612 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2019-02-14 16:49:25,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:49:25,612 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:49:25,612 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:49:25,612 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:49:25,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-02-14 16:49:25,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 110 transitions. [2019-02-14 16:49:25,613 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 110 transitions. Word has length 107 [2019-02-14 16:49:25,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:49:25,613 INFO L480 AbstractCegarLoop]: Abstraction has 110 states and 110 transitions. [2019-02-14 16:49:25,613 INFO L481 AbstractCegarLoop]: Interpolant automaton has 111 states. [2019-02-14 16:49:25,613 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 110 transitions. [2019-02-14 16:49:25,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-02-14 16:49:25,614 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:49:25,614 INFO L402 BasicCegarLoop]: trace histogram [54, 53, 1, 1] [2019-02-14 16:49:25,614 INFO L423 AbstractCegarLoop]: === Iteration 54 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:49:25,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:49:25,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1628127862, now seen corresponding path program 53 times [2019-02-14 16:49:25,614 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:49:25,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:49:25,615 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-14 16:49:25,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:49:25,615 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:49:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:49:26,089 WARN L181 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-02-14 16:49:26,534 WARN L181 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-02-14 16:49:29,940 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 [2019-02-14 16:49:29,941 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 [2019-02-14 16:49:29,942 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 [2019-02-14 16:49:29,943 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 [2019-02-14 16:49:29,943 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 [2019-02-14 16:49:29,945 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 [2019-02-14 16:49:29,945 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 [2019-02-14 16:49:29,946 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 [2019-02-14 16:49:29,947 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 [2019-02-14 16:49:29,948 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 [2019-02-14 16:49:29,949 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 [2019-02-14 16:49:29,950 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 [2019-02-14 16:49:29,951 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 [2019-02-14 16:49:29,952 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 [2019-02-14 16:49:29,952 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 [2019-02-14 16:49:29,953 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 [2019-02-14 16:49:29,954 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 [2019-02-14 16:49:29,955 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 [2019-02-14 16:49:29,956 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 [2019-02-14 16:49:29,957 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 [2019-02-14 16:49:29,958 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 [2019-02-14 16:49:29,959 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 [2019-02-14 16:49:29,959 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 [2019-02-14 16:49:29,960 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 [2019-02-14 16:49:29,961 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 [2019-02-14 16:49:29,962 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 [2019-02-14 16:49:29,963 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 [2019-02-14 16:49:29,964 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 [2019-02-14 16:49:29,965 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 [2019-02-14 16:49:29,966 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 [2019-02-14 16:49:29,967 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 [2019-02-14 16:49:29,968 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 [2019-02-14 16:49:29,969 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 [2019-02-14 16:49:29,970 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 [2019-02-14 16:49:29,970 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 [2019-02-14 16:49:29,972 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 [2019-02-14 16:49:29,972 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 [2019-02-14 16:49:29,973 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 [2019-02-14 16:49:29,974 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 [2019-02-14 16:49:29,975 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 [2019-02-14 16:49:29,976 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 [2019-02-14 16:49:29,977 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 [2019-02-14 16:49:29,978 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 [2019-02-14 16:49:29,979 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 [2019-02-14 16:49:29,979 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 [2019-02-14 16:49:29,981 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 [2019-02-14 16:49:29,981 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 [2019-02-14 16:49:29,982 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 [2019-02-14 16:49:29,983 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 [2019-02-14 16:49:29,984 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 [2019-02-14 16:49:29,985 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 [2019-02-14 16:49:29,986 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 [2019-02-14 16:49:29,987 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 [2019-02-14 16:49:29,988 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 [2019-02-14 16:49:29,989 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 [2019-02-14 16:49:29,990 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 [2019-02-14 16:49:29,990 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 [2019-02-14 16:49:29,991 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 [2019-02-14 16:49:29,992 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 [2019-02-14 16:49:29,993 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 [2019-02-14 16:49:29,994 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 [2019-02-14 16:49:29,995 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 [2019-02-14 16:49:29,996 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 [2019-02-14 16:49:29,997 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 [2019-02-14 16:49:29,997 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 [2019-02-14 16:49:29,998 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 [2019-02-14 16:49:29,999 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 [2019-02-14 16:49:30,000 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 [2019-02-14 16:49:30,001 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 [2019-02-14 16:49:30,002 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 [2019-02-14 16:49:30,003 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 [2019-02-14 16:49:30,004 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 [2019-02-14 16:49:30,025 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 [2019-02-14 16:49:30,026 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 [2019-02-14 16:49:30,027 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 [2019-02-14 16:49:30,027 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 [2019-02-14 16:49:30,029 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 [2019-02-14 16:49:30,030 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 [2019-02-14 16:49:30,031 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 [2019-02-14 16:49:30,032 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 [2019-02-14 16:49:30,033 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 [2019-02-14 16:49:30,034 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 [2019-02-14 16:49:30,035 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 [2019-02-14 16:49:30,036 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 [2019-02-14 16:49:30,037 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 [2019-02-14 16:49:30,038 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 [2019-02-14 16:49:30,039 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 [2019-02-14 16:49:30,040 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 [2019-02-14 16:49:30,043 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 [2019-02-14 16:49:30,044 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 [2019-02-14 16:49:30,045 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 [2019-02-14 16:49:30,046 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 [2019-02-14 16:49:30,047 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 [2019-02-14 16:49:30,049 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 [2019-02-14 16:49:30,050 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 [2019-02-14 16:49:30,052 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 [2019-02-14 16:49:30,052 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 [2019-02-14 16:49:30,055 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 [2019-02-14 16:49:30,055 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 [2019-02-14 16:49:30,057 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 [2019-02-14 16:49:30,057 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 [2019-02-14 16:49:30,060 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 [2019-02-14 16:49:30,060 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 [2019-02-14 16:49:30,062 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 [2019-02-14 16:49:30,062 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 [2019-02-14 16:49:30,064 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 [2019-02-14 16:49:30,064 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 [2019-02-14 16:49:30,067 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 [2019-02-14 16:49:30,067 INFO L273 TraceCheckUtils]: 108: Hoare triple {37525#(and (<= main_i 216) (<= 54 main_n))} assume !(i <= n * 4); {37469#false} is VALID [2019-02-14 16:49:30,117 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 2862 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:49:30,117 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:49:30,118 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-14 16:49:30,118 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-14 16:49:30,118 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-14 16:49:30,118 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-14 16:49:30,118 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 [2019-02-14 16:49:30,128 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-14 16:49:30,128 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-14 16:49:30,237 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 54 check-sat command(s) [2019-02-14 16:49:30,237 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-14 16:49:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-14 16:49:30,256 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-14 16:49:30,277 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 [2019-02-14 16:49:30,279 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:49:30,291 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:49:30,291 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-02-14 16:49:30,293 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:49:30,293 WARN L398 uantifierElimination]: Input elimination task: ∃ [v_main_a_57]. (and (= main_a (store v_main_a_57 (* 4 main_n) 23)) (= main_i 0)) [2019-02-14 16:49:30,293 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= main_i 0) (= 23 (select main_a (* 4 main_n)))) [2019-02-14 16:49:34,913 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 [2019-02-14 16:49:34,914 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-14 16:49:34,920 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-14 16:49:34,921 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:15 [2019-02-14 16:49:34,923 WARN L397 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2019-02-14 16:49:34,923 WARN L398 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))) [2019-02-14 16:49:34,924 WARN L399 uantifierElimination]: ElimStorePlain result: ∃ []. (let ((.cse0 (* 4 main_n))) (and (<= main_i 216) (not (= 212 .cse0)) (<= 212 .cse0))) [2019-02-14 16:49:34,989 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 [2019-02-14 16:49:34,990 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 [2019-02-14 16:49:34,990 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 [2019-02-14 16:49:34,991 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 [2019-02-14 16:49:34,991 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 [2019-02-14 16:49:34,992 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 [2019-02-14 16:49:34,993 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 [2019-02-14 16:49:34,993 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 [2019-02-14 16:49:34,994 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 [2019-02-14 16:49:34,995 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 [2019-02-14 16:49:34,995 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 [2019-02-14 16:49:34,996 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 [2019-02-14 16:49:34,997 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 [2019-02-14 16:49:34,997 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 [2019-02-14 16:49:34,998 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 [2019-02-14 16:49:34,999 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 [2019-02-14 16:49:34,999 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 [2019-02-14 16:49:35,000 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 [2019-02-14 16:49:35,001 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 [2019-02-14 16:49:35,002 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 [2019-02-14 16:49:35,002 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 [2019-02-14 16:49:35,003 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 [2019-02-14 16:49:35,004 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 [2019-02-14 16:49:35,004 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 [2019-02-14 16:49:35,005 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 [2019-02-14 16:49:35,006 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 [2019-02-14 16:49:35,006 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 [2019-02-14 16:49:35,007 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 [2019-02-14 16:49:35,008 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 [2019-02-14 16:49:35,008 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 [2019-02-14 16:49:35,009 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 [2019-02-14 16:49:35,010 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 [2019-02-14 16:49:35,010 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 [2019-02-14 16:49:35,011 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 [2019-02-14 16:49:35,012 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 [2019-02-14 16:49:35,012 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 [2019-02-14 16:49:35,013 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 [2019-02-14 16:49:35,014 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 [2019-02-14 16:49:35,014 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 [2019-02-14 16:49:35,015 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 [2019-02-14 16:49:35,016 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 [2019-02-14 16:49:35,017 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 [2019-02-14 16:49:35,017 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 [2019-02-14 16:49:35,018 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 [2019-02-14 16:49:35,019 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 [2019-02-14 16:49:35,019 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 [2019-02-14 16:49:35,020 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 [2019-02-14 16:49:35,021 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 [2019-02-14 16:49:35,021 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 [2019-02-14 16:49:35,022 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 [2019-02-14 16:49:35,023 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 [2019-02-14 16:49:35,023 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 [2019-02-14 16:49:35,024 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 [2019-02-14 16:49:35,025 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 [2019-02-14 16:49:35,025 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 [2019-02-14 16:49:35,026 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 [2019-02-14 16:49:35,027 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 [2019-02-14 16:49:35,027 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 [2019-02-14 16:49:35,028 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 [2019-02-14 16:49:35,029 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 [2019-02-14 16:49:35,030 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 [2019-02-14 16:49:35,030 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 [2019-02-14 16:49:35,031 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 [2019-02-14 16:49:35,032 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 [2019-02-14 16:49:35,033 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 [2019-02-14 16:49:35,033 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 [2019-02-14 16:49:35,034 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 [2019-02-14 16:49:35,035 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 [2019-02-14 16:49:35,035 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 [2019-02-14 16:49:35,036 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 [2019-02-14 16:49:35,037 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 [2019-02-14 16:49:35,038 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 [2019-02-14 16:49:35,038 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 [2019-02-14 16:49:35,039 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 [2019-02-14 16:49:35,040 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 [2019-02-14 16:49:35,040 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 [2019-02-14 16:49:35,041 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 [2019-02-14 16:49:35,042 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 [2019-02-14 16:49:35,043 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 [2019-02-14 16:49:35,043 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 [2019-02-14 16:49:35,044 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 [2019-02-14 16:49:35,045 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 [2019-02-14 16:49:35,045 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 [2019-02-14 16:49:35,046 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 [2019-02-14 16:49:35,047 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 [2019-02-14 16:49:35,047 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 [2019-02-14 16:49:35,048 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 [2019-02-14 16:49:35,049 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 [2019-02-14 16:49:35,049 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 [2019-02-14 16:49:35,050 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 [2019-02-14 16:49:35,051 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 [2019-02-14 16:49:35,052 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 [2019-02-14 16:49:35,052 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 [2019-02-14 16:49:35,053 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 [2019-02-14 16:49:35,054 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 [2019-02-14 16:49:35,054 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 [2019-02-14 16:49:35,055 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 [2019-02-14 16:49:35,056 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 [2019-02-14 16:49:35,056 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 [2019-02-14 16:49:35,057 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 [2019-02-14 16:49:35,058 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 [2019-02-14 16:49:35,058 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 [2019-02-14 16:49:35,059 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 [2019-02-14 16:49:35,060 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 [2019-02-14 16:49:35,060 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 [2019-02-14 16:49:35,061 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 [2019-02-14 16:49:35,062 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 [2019-02-14 16:49:35,063 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 [2019-02-14 16:49:35,064 INFO L273 TraceCheckUtils]: 108: Hoare triple {37525#(and (<= main_i 216) (<= 54 main_n))} assume !(i <= n * 4); {37469#false} is VALID [2019-02-14 16:49:35,090 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 2862 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:49:35,090 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-14 16:49:43,246 INFO L273 TraceCheckUtils]: 108: Hoare triple {37908#(<= main_i (* 4 main_n))} assume !(i <= n * 4); {37469#false} is VALID [2019-02-14 16:49:43,247 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 [2019-02-14 16:49:43,248 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 [2019-02-14 16:49:43,249 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 [2019-02-14 16:49:43,250 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 [2019-02-14 16:49:43,251 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 [2019-02-14 16:49:43,251 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 [2019-02-14 16:49:43,252 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 [2019-02-14 16:49:43,253 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 [2019-02-14 16:49:43,254 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 [2019-02-14 16:49:43,254 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 [2019-02-14 16:49:43,255 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 [2019-02-14 16:49:43,256 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 [2019-02-14 16:49:43,257 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 [2019-02-14 16:49:43,257 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 [2019-02-14 16:49:43,258 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 [2019-02-14 16:49:43,259 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 [2019-02-14 16:49:43,260 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 [2019-02-14 16:49:43,260 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 [2019-02-14 16:49:43,262 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 [2019-02-14 16:49:43,262 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 [2019-02-14 16:49:43,263 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 [2019-02-14 16:49:43,264 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 [2019-02-14 16:49:43,265 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 [2019-02-14 16:49:43,265 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 [2019-02-14 16:49:43,266 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 [2019-02-14 16:49:43,267 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 [2019-02-14 16:49:43,268 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 [2019-02-14 16:49:43,268 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 [2019-02-14 16:49:43,269 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 [2019-02-14 16:49:43,270 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 [2019-02-14 16:49:43,271 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 [2019-02-14 16:49:43,271 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 [2019-02-14 16:49:43,272 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 [2019-02-14 16:49:43,273 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 [2019-02-14 16:49:43,274 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 [2019-02-14 16:49:43,275 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 [2019-02-14 16:49:43,276 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 [2019-02-14 16:49:43,276 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 [2019-02-14 16:49:43,277 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 [2019-02-14 16:49:43,278 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 [2019-02-14 16:49:43,279 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 [2019-02-14 16:49:43,279 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 [2019-02-14 16:49:43,280 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 [2019-02-14 16:49:43,281 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 [2019-02-14 16:49:43,282 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 [2019-02-14 16:49:43,283 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 [2019-02-14 16:49:43,284 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 [2019-02-14 16:49:43,284 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 [2019-02-14 16:49:43,285 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 [2019-02-14 16:49:43,286 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 [2019-02-14 16:49:43,287 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 [2019-02-14 16:49:43,287 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 [2019-02-14 16:49:43,288 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 [2019-02-14 16:49:43,289 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 [2019-02-14 16:49:43,290 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 [2019-02-14 16:49:43,290 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 [2019-02-14 16:49:43,291 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 [2019-02-14 16:49:43,292 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 [2019-02-14 16:49:43,293 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 [2019-02-14 16:49:43,294 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 [2019-02-14 16:49:43,295 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 [2019-02-14 16:49:43,295 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 [2019-02-14 16:49:43,296 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 [2019-02-14 16:49:43,297 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 [2019-02-14 16:49:43,298 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 [2019-02-14 16:49:43,298 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 [2019-02-14 16:49:43,299 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 [2019-02-14 16:49:43,300 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 [2019-02-14 16:49:43,301 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 [2019-02-14 16:49:43,301 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 [2019-02-14 16:49:43,302 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 [2019-02-14 16:49:43,303 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 [2019-02-14 16:49:43,304 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 [2019-02-14 16:49:43,305 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 [2019-02-14 16:49:43,306 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 [2019-02-14 16:49:43,306 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 [2019-02-14 16:49:43,307 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 [2019-02-14 16:49:43,308 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 [2019-02-14 16:49:43,309 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 [2019-02-14 16:49:43,309 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 [2019-02-14 16:49:43,310 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 [2019-02-14 16:49:43,311 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 [2019-02-14 16:49:43,312 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 [2019-02-14 16:49:43,312 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 [2019-02-14 16:49:43,313 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 [2019-02-14 16:49:43,314 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 [2019-02-14 16:49:43,315 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 [2019-02-14 16:49:43,315 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 [2019-02-14 16:49:43,316 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 [2019-02-14 16:49:43,317 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 [2019-02-14 16:49:43,318 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 [2019-02-14 16:49:43,319 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 [2019-02-14 16:49:43,320 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 [2019-02-14 16:49:43,320 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 [2019-02-14 16:49:43,321 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 [2019-02-14 16:49:43,322 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 [2019-02-14 16:49:43,323 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 [2019-02-14 16:49:43,323 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 [2019-02-14 16:49:43,324 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 [2019-02-14 16:49:43,325 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 [2019-02-14 16:49:43,326 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 [2019-02-14 16:49:43,326 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 [2019-02-14 16:49:43,327 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 [2019-02-14 16:49:43,328 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 [2019-02-14 16:49:43,329 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 [2019-02-14 16:49:43,330 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 [2019-02-14 16:49:43,331 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 [2019-02-14 16:49:43,332 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 [2019-02-14 16:49:43,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 2862 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-14 16:49:43,393 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-14 16:49:43,393 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56, 56] total 167 [2019-02-14 16:49:43,393 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-14 16:49:43,393 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 109 [2019-02-14 16:49:43,393 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-14 16:49:43,394 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 113 states. [2019-02-14 16:49:43,656 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 217 edges. 217 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:49:43,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 113 states [2019-02-14 16:49:43,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2019-02-14 16:49:43,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3424, Invalid=24968, Unknown=0, NotChecked=0, Total=28392 [2019-02-14 16:49:43,658 INFO L87 Difference]: Start difference. First operand 110 states and 110 transitions. Second operand 113 states. [2019-02-14 16:50:02,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:50:02,023 INFO L93 Difference]: Finished difference Result 114 states and 114 transitions. [2019-02-14 16:50:02,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2019-02-14 16:50:02,024 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 109 [2019-02-14 16:50:02,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-14 16:50:02,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-02-14 16:50:02,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 114 transitions. [2019-02-14 16:50:02,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-02-14 16:50:02,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 114 transitions. [2019-02-14 16:50:02,026 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 58 states and 114 transitions. [2019-02-14 16:50:02,153 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 114 edges. 114 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-14 16:50:02,155 INFO L225 Difference]: With dead ends: 114 [2019-02-14 16:50:02,155 INFO L226 Difference]: Without dead ends: 113 [2019-02-14 16:50:02,155 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6380 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=3424, Invalid=24968, Unknown=0, NotChecked=0, Total=28392 [2019-02-14 16:50:02,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-02-14 16:50:02,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 112. [2019-02-14 16:50:02,258 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-14 16:50:02,258 INFO L82 GeneralOperation]: Start isEquivalent. First operand 113 states. Second operand 112 states. [2019-02-14 16:50:02,258 INFO L74 IsIncluded]: Start isIncluded. First operand 113 states. Second operand 112 states. [2019-02-14 16:50:02,258 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 112 states. [2019-02-14 16:50:02,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:50:02,260 INFO L93 Difference]: Finished difference Result 113 states and 113 transitions. [2019-02-14 16:50:02,260 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2019-02-14 16:50:02,260 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:50:02,260 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:50:02,261 INFO L74 IsIncluded]: Start isIncluded. First operand 112 states. Second operand 113 states. [2019-02-14 16:50:02,261 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 113 states. [2019-02-14 16:50:02,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-14 16:50:02,262 INFO L93 Difference]: Finished difference Result 113 states and 113 transitions. [2019-02-14 16:50:02,262 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2019-02-14 16:50:02,262 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-14 16:50:02,262 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-14 16:50:02,262 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-14 16:50:02,262 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-14 16:50:02,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-02-14 16:50:02,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 112 transitions. [2019-02-14 16:50:02,264 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 112 transitions. Word has length 109 [2019-02-14 16:50:02,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-14 16:50:02,264 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 112 transitions. [2019-02-14 16:50:02,264 INFO L481 AbstractCegarLoop]: Interpolant automaton has 113 states. [2019-02-14 16:50:02,264 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 112 transitions. [2019-02-14 16:50:02,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-02-14 16:50:02,265 INFO L394 BasicCegarLoop]: Found error trace [2019-02-14 16:50:02,265 INFO L402 BasicCegarLoop]: trace histogram [55, 54, 1, 1] [2019-02-14 16:50:02,265 INFO L423 AbstractCegarLoop]: === Iteration 55 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-14 16:50:02,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-14 16:50:02,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1262778548, now seen corresponding path program 54 times [2019-02-14 16:50:02,265 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-14 16:50:02,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:50:02,266 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-14 16:50:02,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-14 16:50:02,266 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-14 16:50:02,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat